update shorturl doc

export cache package, add client interceptor customization
add zrpc client interceptor
2026-05-12 01:10:00 +08:00 · 2020-09-29 17:36:00 +08:00 · 2020-09-29 17:25:49 +08:00 · 2020-09-29 16:09:11 +08:00 · 2020-09-29 14:32:17 +08:00 · 2020-09-29 14:30:22 +08:00
71 changed files with 652 additions and 254 deletions
--- a/core/collection/cache.go
+++ b/core/collection/cache.go
@@ -82,12 +82,7 @@ func (c *Cache) Del(key string) {
 }

 func (c *Cache) Get(key string) (interface{}, bool) {
-	c.lock.Lock()
-	value, ok := c.data[key]
-	if ok {
-		c.lruCache.add(key)
-	}
-	c.lock.Unlock()
+	value, ok := c.doGet(key)
 	if ok {
 		c.stats.IncrementHit()
 	} else {
@@ -113,12 +108,25 @@ func (c *Cache) Set(key string, value interface{}) {
 }

 func (c *Cache) Take(key string, fetch func() (interface{}, error)) (interface{}, error) {
-	val, fresh, err := c.barrier.DoEx(key, func() (interface{}, error) {
+	if val, ok := c.doGet(key); ok {
+		c.stats.IncrementHit()
+		return val, nil
+	}
+
+	var fresh bool
+	val, err := c.barrier.Do(key, func() (interface{}, error) {
+		// because O(1) on map search in memory, and fetch is an IO query
+		// so we do double check, cache might be taken by another call
+		if val, ok := c.doGet(key); ok {
+			return val, nil
+		}
+
 		v, e := fetch()
 		if e != nil {
 			return nil, e
 		}

+		fresh = true
 		c.Set(key, v)
 		return v, nil
 	})
@@ -137,6 +145,18 @@ func (c *Cache) Take(key string, fetch func() (interface{}, error)) (interface{}
 	return val, nil
 }

+func (c *Cache) doGet(key string) (interface{}, bool) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	value, ok := c.data[key]
+	if ok {
+		c.lruCache.add(key)
+	}
+
+	return value, ok
+}
+
 func (c *Cache) onEvict(key string) {
 	// already locked
 	delete(c.data, key)
--- a/core/collection/cache_test.go
+++ b/core/collection/cache_test.go
@@ -1,6 +1,7 @@
 package collection

 import (
+	"errors"
 	"strconv"
 	"sync"
 	"sync/atomic"
@@ -10,6 +11,8 @@ import (
 	"github.com/stretchr/testify/assert"
 )

+var errDummy = errors.New("dummy")
+
 func TestCacheSet(t *testing.T) {
 	cache, err := NewCache(time.Second*2, WithName("any"))
 	assert.Nil(t, err)
@@ -63,6 +66,54 @@ func TestCacheTake(t *testing.T) {
 	assert.Equal(t, int32(1), atomic.LoadInt32(&count))
 }

+func TestCacheTakeExists(t *testing.T) {
+	cache, err := NewCache(time.Second * 2)
+	assert.Nil(t, err)
+
+	var count int32
+	var wg sync.WaitGroup
+	for i := 0; i < 100; i++ {
+		wg.Add(1)
+		go func() {
+			cache.Set("first", "first element")
+			cache.Take("first", func() (interface{}, error) {
+				atomic.AddInt32(&count, 1)
+				time.Sleep(time.Millisecond * 100)
+				return "first element", nil
+			})
+			wg.Done()
+		}()
+	}
+	wg.Wait()
+
+	assert.Equal(t, 1, cache.size())
+	assert.Equal(t, int32(0), atomic.LoadInt32(&count))
+}
+
+func TestCacheTakeError(t *testing.T) {
+	cache, err := NewCache(time.Second * 2)
+	assert.Nil(t, err)
+
+	var count int32
+	var wg sync.WaitGroup
+	for i := 0; i < 100; i++ {
+		wg.Add(1)
+		go func() {
+			_, err := cache.Take("first", func() (interface{}, error) {
+				atomic.AddInt32(&count, 1)
+				time.Sleep(time.Millisecond * 100)
+				return "", errDummy
+			})
+			assert.Equal(t, errDummy, err)
+			wg.Done()
+		}()
+	}
+	wg.Wait()
+
+	assert.Equal(t, 0, cache.size())
+	assert.Equal(t, int32(1), atomic.LoadInt32(&count))
+}
+
 func TestCacheWithLruEvicts(t *testing.T) {
 	cache, err := NewCache(time.Minute, WithLimit(3))
 	assert.Nil(t, err)
--- a/core/conf/config_test.go
+++ b/core/conf/config_test.go
@@ -0,0 +1,59 @@
+package conf
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tal-tech/go-zero/core/hash"
+)
+
+func TestConfigJson(t *testing.T) {
+	tests := []string{
+		".json",
+		".yaml",
+		".yml",
+	}
+	text := `{
+	"a": "foo",
+	"b": 1
+}`
+	for _, test := range tests {
+		test := test
+		t.Run(test, func(t *testing.T) {
+			t.Parallel()
+
+			tmpfile, err := createTempFile(test, text)
+			assert.Nil(t, err)
+			defer os.Remove(tmpfile)
+
+			var val struct {
+				A string `json:"a"`
+				B int    `json:"b"`
+			}
+			err = LoadConfig(tmpfile, &val)
+			assert.Nil(t, err)
+			assert.Equal(t, "foo", val.A)
+			assert.Equal(t, 1, val.B)
+		})
+	}
+}
+
+func createTempFile(ext, text string) (string, error) {
+	tmpfile, err := ioutil.TempFile(os.TempDir(), hash.Md5Hex([]byte(text))+"*"+ext)
+	if err != nil {
+		return "", err
+	}
+
+	if err := ioutil.WriteFile(tmpfile.Name(), []byte(text), os.ModeTemporary); err != nil {
+		return "", err
+	}
+
+	filename := tmpfile.Name()
+	if err = tmpfile.Close(); err != nil {
+		return "", err
+	}
+
+	return filename, nil
+}
--- a/core/discov/kubernetes/etcd.yaml
+++ b/core/discov/kubernetes/etcd.yaml
@@ -40,6 +40,7 @@ spec:
        - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
        - --initial-cluster-state
        - new
+        - --auto-compaction-retention=1
      image: quay.io/coreos/etcd:latest
      name: etcd0
      ports:
@@ -111,6 +112,7 @@ spec:
        - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
        - --initial-cluster-state
        - new
+        - --auto-compaction-retention=1
      image: quay.io/coreos/etcd:latest
      name: etcd1
      ports:
@@ -182,6 +184,7 @@ spec:
        - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
        - --initial-cluster-state
        - new
+        - --auto-compaction-retention=1
      image: quay.io/coreos/etcd:latest
      name: etcd2
      ports:
@@ -253,6 +256,7 @@ spec:
        - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
        - --initial-cluster-state
        - new
+        - --auto-compaction-retention=1
      image: quay.io/coreos/etcd:latest
      name: etcd3
      ports:
@@ -324,6 +328,7 @@ spec:
        - etcd0=http://etcd0:2380,etcd1=http://etcd1:2380,etcd2=http://etcd2:2380,etcd3=http://etcd3:2380,etcd4=http://etcd4:2380
        - --initial-cluster-state
        - new
+        - --auto-compaction-retention=1
      image: quay.io/coreos/etcd:latest
      name: etcd4
      ports:
--- a/core/mapping/fieldoptions_test.go
+++ b/core/mapping/fieldoptions_test.go
@@ -0,0 +1,31 @@
+package mapping
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+type Bar struct {
+	Val string `json:"val"`
+}
+
+func TestFieldOptionOptionalDep(t *testing.T) {
+	var bar Bar
+	rt := reflect.TypeOf(bar)
+	for i := 0; i < rt.NumField(); i++ {
+		field := rt.Field(i)
+		val, opt, err := parseKeyAndOptions(jsonTagKey, field)
+		assert.Equal(t, "val", val)
+		assert.Nil(t, opt)
+		assert.Nil(t, err)
+	}
+
+	// check nil working
+	var o *fieldOptions
+	check := func(o *fieldOptions) {
+		assert.Equal(t, 0, len(o.optionalDep()))
+	}
+	check(o)
+}
--- a/core/mapping/unmarshaler.go
+++ b/core/mapping/unmarshaler.go
@@ -23,6 +23,7 @@ const (
 var (
 	errTypeMismatch     = errors.New("type mismatch")
 	errValueNotSettable = errors.New("value is not settable")
+	errValueNotStruct   = errors.New("value type is not struct")
 	keyUnmarshaler      = NewUnmarshaler(defaultKeyName)
 	cacheKeys           atomic.Value
 	cacheKeysLock       sync.Mutex
@@ -80,6 +81,10 @@ func (u *Unmarshaler) unmarshalWithFullName(m Valuer, v interface{}, fullName st
 	}

 	rte := reflect.TypeOf(v).Elem()
+	if rte.Kind() != reflect.Struct {
+		return errValueNotStruct
+	}
+
 	rve := rv.Elem()
 	numFields := rte.NumField()
 	for i := 0; i < numFields; i++ {
--- a/core/mapping/unmarshaler_test.go
+++ b/core/mapping/unmarshaler_test.go
@@ -14,6 +14,13 @@ import (
 // so we only can test to 62 bits.
 const maxUintBitsToTest = 62

+func TestUnmarshalWithFullNameNotStruct(t *testing.T) {
+	var s map[string]interface{}
+	content := []byte(`{"name":"xiaoming"}`)
+	err := UnmarshalJsonBytes(content, &s)
+	assert.Equal(t, errValueNotStruct, err)
+}
+
 func TestUnmarshalWithoutTagName(t *testing.T) {
 	type inner struct {
 		Optional bool `key:",optional"`
@@ -2380,6 +2387,13 @@ func TestUnmarshalNestedMapSimpleTypeMatch(t *testing.T) {
 	assert.Equal(t, "1", c.Anything["id"])
 }

+func TestUnmarshalValuer(t *testing.T) {
+	unmarshaler := NewUnmarshaler(jsonTagKey)
+	var foo string
+	err := unmarshaler.UnmarshalValuer(nil, foo)
+	assert.NotNil(t, err)
+}
+
 func BenchmarkUnmarshalString(b *testing.B) {
 	type inner struct {
 		Value string `key:"value"`
--- a/core/proc/goroutines_test.go
+++ b/core/proc/goroutines_test.go
@@ -0,0 +1,16 @@
+package proc
+
+import (
+	"log"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestDumpGoroutines(t *testing.T) {
+	var buf strings.Builder
+	log.SetOutput(&buf)
+	dumpGoroutines()
+	assert.True(t, strings.Contains(buf.String(), ".dump"))
+}
--- a/core/proc/profile_test.go
+++ b/core/proc/profile_test.go
@@ -0,0 +1,21 @@
+package proc
+
+import (
+	"log"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestProfile(t *testing.T) {
+	var buf strings.Builder
+	log.SetOutput(&buf)
+	profiler := StartProfile()
+	// start again should not work
+	assert.NotNil(t, StartProfile())
+	profiler.Stop()
+	// stop twice
+	profiler.Stop()
+	assert.True(t, strings.Contains(buf.String(), ".pprof"))
+}
--- a/core/stores/internal/cache.go
+++ b/core/stores/internal/cache.go
@@ -1,4 +1,4 @@
-package internal
+package cache

 import (
 	"fmt"
--- a/core/stores/internal/cache_test.go
+++ b/core/stores/internal/cache_test.go
@@ -1,4 +1,4 @@
-package internal
+package cache

 import (
 	"encoding/json"
--- a/core/stores/cache/cacheconf.go
+++ b/core/stores/cache/cacheconf.go
@@ -1,5 +1,3 @@
 package cache

-import "github.com/tal-tech/go-zero/core/stores/internal"
-
-type CacheConf = internal.ClusterConf
+type CacheConf = ClusterConf
--- a/core/stores/internal/cachenode.go
+++ b/core/stores/internal/cachenode.go
@@ -1,4 +1,4 @@
-package internal
+package cache

 import (
 	"encoding/json"
--- a/core/stores/internal/cachenode_test.go
+++ b/core/stores/internal/cachenode_test.go
@@ -1,4 +1,4 @@
-package internal
+package cache

 import (
 	"errors"
--- a/core/stores/cache/cacheopt.go
+++ b/core/stores/cache/cacheopt.go
@@ -1,21 +1,45 @@
 package cache

-import (
-	"time"
+import "time"

-	"github.com/tal-tech/go-zero/core/stores/internal"
+const (
+	defaultExpiry         = time.Hour * 24 * 7
+	defaultNotFoundExpiry = time.Minute
 )

-type Option = internal.Option
+type (
+	Options struct {
+		Expiry         time.Duration
+		NotFoundExpiry time.Duration
+	}
+
+	Option func(o *Options)
+)
+
+func newOptions(opts ...Option) Options {
+	var o Options
+	for _, opt := range opts {
+		opt(&o)
+	}
+
+	if o.Expiry <= 0 {
+		o.Expiry = defaultExpiry
+	}
+	if o.NotFoundExpiry <= 0 {
+		o.NotFoundExpiry = defaultNotFoundExpiry
+	}
+
+	return o
+}

 func WithExpiry(expiry time.Duration) Option {
-	return func(o *internal.Options) {
+	return func(o *Options) {
 		o.Expiry = expiry
 	}
 }

 func WithNotFoundExpiry(expiry time.Duration) Option {
-	return func(o *internal.Options) {
+	return func(o *Options) {
 		o.NotFoundExpiry = expiry
 	}
 }
--- a/core/stores/internal/cachestat.go
+++ b/core/stores/internal/cachestat.go
@@ -1,4 +1,4 @@
-package internal
+package cache

 import (
 	"sync/atomic"
--- a/core/stores/internal/cleaner.go
+++ b/core/stores/internal/cleaner.go
@@ -1,4 +1,4 @@
-package internal
+package cache

 import (
 	"fmt"
--- a/core/stores/internal/config.go
+++ b/core/stores/internal/config.go
@@ -1,4 +1,4 @@
-package internal
+package cache

 import "github.com/tal-tech/go-zero/core/stores/redis"

--- a/core/stores/internal/util.go
+++ b/core/stores/internal/util.go
@@ -1,4 +1,4 @@
-package internal
+package cache

 import "strings"

--- a/core/stores/internal/cacheopt.go
+++ b/core/stores/internal/cacheopt.go
@@ -1,33 +0,0 @@
-package internal
-
-import "time"
-
-const (
-	defaultExpiry         = time.Hour * 24 * 7
-	defaultNotFoundExpiry = time.Minute
-)
-
-type (
-	Options struct {
-		Expiry         time.Duration
-		NotFoundExpiry time.Duration
-	}
-
-	Option func(o *Options)
-)
-
-func newOptions(opts ...Option) Options {
-	var o Options
-	for _, opt := range opts {
-		opt(&o)
-	}
-
-	if o.Expiry <= 0 {
-		o.Expiry = defaultExpiry
-	}
-	if o.NotFoundExpiry <= 0 {
-		o.NotFoundExpiry = defaultNotFoundExpiry
-	}
-
-	return o
-}
--- a/core/stores/kv/config.go
+++ b/core/stores/kv/config.go
@@ -1,5 +1,7 @@
 package kv

-import "github.com/tal-tech/go-zero/core/stores/internal"
+import (
+	"github.com/tal-tech/go-zero/core/stores/cache"
+)

-type KvConf = internal.ClusterConf
+type KvConf = cache.ClusterConf
--- a/core/stores/kv/store.go
+++ b/core/stores/kv/store.go
@@ -6,7 +6,7 @@ import (

 	"github.com/tal-tech/go-zero/core/errorx"
 	"github.com/tal-tech/go-zero/core/hash"
-	"github.com/tal-tech/go-zero/core/stores/internal"
+	"github.com/tal-tech/go-zero/core/stores/cache"
 	"github.com/tal-tech/go-zero/core/stores/redis"
 )

@@ -81,7 +81,7 @@ type (
 )

 func NewStore(c KvConf) Store {
-	if len(c) == 0 || internal.TotalWeights(c) <= 0 {
+	if len(c) == 0 || cache.TotalWeights(c) <= 0 {
 		log.Fatal("no cache nodes")
 	}

--- a/core/stores/kv/store_test.go
+++ b/core/stores/kv/store_test.go
@@ -6,7 +6,7 @@ import (

 	"github.com/alicebob/miniredis"
 	"github.com/stretchr/testify/assert"
-	"github.com/tal-tech/go-zero/core/stores/internal"
+	"github.com/tal-tech/go-zero/core/stores/cache"
 	"github.com/tal-tech/go-zero/core/stores/redis"
 	"github.com/tal-tech/go-zero/core/stringx"
 )
@@ -478,7 +478,7 @@ func runOnCluster(t *testing.T, fn func(cluster Store)) {
 	s1.FlushAll()
 	s2.FlushAll()

-	store := NewStore([]internal.NodeConf{
+	store := NewStore([]cache.NodeConf{
 		{
 			RedisConf: redis.RedisConf{
 				Host: s1.Addr(),
--- a/core/stores/mongo/model.go
+++ b/core/stores/mongo/model.go
@@ -22,8 +22,8 @@ type (
 	}
 )

-func MustNewModel(url, database, collection string, opts ...Option) *Model {
-	model, err := NewModel(url, database, collection, opts...)
+func MustNewModel(url, collection string, opts ...Option) *Model {
+	model, err := NewModel(url, collection, opts...)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -31,15 +31,16 @@ func MustNewModel(url, database, collection string, opts ...Option) *Model {
 	return model
 }

-func NewModel(url, database, collection string, opts ...Option) (*Model, error) {
+func NewModel(url, collection string, opts ...Option) (*Model, error) {
 	session, err := getConcurrentSession(url)
 	if err != nil {
 		return nil, err
 	}

 	return &Model{
-		session:    session,
-		db:         session.DB(database),
+		session: session,
+		// If name is empty, the database name provided in the dialed URL is used instead
+		db:         session.DB(""),
 		collection: collection,
 		opts:       opts,
 	}, nil
--- a/core/stores/mongoc/cachedcollection.go
+++ b/core/stores/mongoc/cachedcollection.go
@@ -2,7 +2,7 @@ package mongoc

 import (
 	"github.com/globalsign/mgo"
-	"github.com/tal-tech/go-zero/core/stores/internal"
+	"github.com/tal-tech/go-zero/core/stores/cache"
 	"github.com/tal-tech/go-zero/core/stores/mongo"
 	"github.com/tal-tech/go-zero/core/syncx"
 )
@@ -12,7 +12,7 @@ var (

 	// can't use one SharedCalls per conn, because multiple conns may share the same cache key.
 	sharedCalls = syncx.NewSharedCalls()
-	stats       = internal.NewCacheStat("mongoc")
+	stats       = cache.NewCacheStat("mongoc")
 )

 type (
@@ -20,11 +20,11 @@ type (

 	cachedCollection struct {
 		collection mongo.Collection
-		cache      internal.Cache
+		cache      cache.Cache
 	}
 )

-func newCollection(collection mongo.Collection, c internal.Cache) *cachedCollection {
+func newCollection(collection mongo.Collection, c cache.Cache) *cachedCollection {
 	return &cachedCollection{
 		collection: collection,
 		cache:      c,
--- a/core/stores/mongoc/cachedcollection_test.go
+++ b/core/stores/mongoc/cachedcollection_test.go
@@ -16,7 +16,7 @@ import (
 	"github.com/globalsign/mgo/bson"
 	"github.com/stretchr/testify/assert"
 	"github.com/tal-tech/go-zero/core/stat"
-	"github.com/tal-tech/go-zero/core/stores/internal"
+	"github.com/tal-tech/go-zero/core/stores/cache"
 	"github.com/tal-tech/go-zero/core/stores/mongo"
 	"github.com/tal-tech/go-zero/core/stores/redis"
 )
@@ -33,7 +33,7 @@ func TestStat(t *testing.T) {
 	}

 	r := redis.NewRedis(s.Addr(), redis.NodeType)
-	cach := internal.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
+	cach := cache.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
 	c := newCollection(dummyConn{}, cach)

 	for i := 0; i < 10; i++ {
@@ -56,7 +56,7 @@ func TestStatCacheFails(t *testing.T) {
 	defer log.SetOutput(os.Stdout)

 	r := redis.NewRedis("localhost:59999", redis.NodeType)
-	cach := internal.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
+	cach := cache.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
 	c := newCollection(dummyConn{}, cach)

 	for i := 0; i < 20; i++ {
@@ -79,7 +79,7 @@ func TestStatDbFails(t *testing.T) {
 	}

 	r := redis.NewRedis(s.Addr(), redis.NodeType)
-	cach := internal.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
+	cach := cache.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
 	c := newCollection(dummyConn{}, cach)

 	for i := 0; i < 20; i++ {
@@ -103,7 +103,7 @@ func TestStatFromMemory(t *testing.T) {
 	}

 	r := redis.NewRedis(s.Addr(), redis.NodeType)
-	cach := internal.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
+	cach := cache.NewCacheNode(r, sharedCalls, stats, mgo.ErrNotFound)
 	c := newCollection(dummyConn{}, cach)

 	var all sync.WaitGroup
--- a/core/stores/mongoc/cachedmodel.go
+++ b/core/stores/mongoc/cachedmodel.go
@@ -5,19 +5,18 @@ import (

 	"github.com/globalsign/mgo"
 	"github.com/tal-tech/go-zero/core/stores/cache"
-	"github.com/tal-tech/go-zero/core/stores/internal"
 	"github.com/tal-tech/go-zero/core/stores/mongo"
 	"github.com/tal-tech/go-zero/core/stores/redis"
 )

 type Model struct {
 	*mongo.Model
-	cache              internal.Cache
+	cache              cache.Cache
 	generateCollection func(*mgo.Session) *cachedCollection
 }

-func MustNewNodeModel(url, database, collection string, rds *redis.Redis, opts ...cache.Option) *Model {
-	model, err := NewNodeModel(url, database, collection, rds, opts...)
+func MustNewNodeModel(url, collection string, rds *redis.Redis, opts ...cache.Option) *Model {
+	model, err := NewNodeModel(url, collection, rds, opts...)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -25,8 +24,8 @@ func MustNewNodeModel(url, database, collection string, rds *redis.Redis, opts .
 	return model
 }

-func MustNewModel(url, database, collection string, c cache.CacheConf, opts ...cache.Option) *Model {
-	model, err := NewModel(url, database, collection, c, opts...)
+func MustNewModel(url, collection string, c cache.CacheConf, opts ...cache.Option) *Model {
+	model, err := NewModel(url, collection, c, opts...)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -34,16 +33,16 @@ func MustNewModel(url, database, collection string, c cache.CacheConf, opts ...c
 	return model
 }

-func NewNodeModel(url, database, collection string, rds *redis.Redis, opts ...cache.Option) (*Model, error) {
-	c := internal.NewCacheNode(rds, sharedCalls, stats, mgo.ErrNotFound, opts...)
-	return createModel(url, database, collection, c, func(collection mongo.Collection) *cachedCollection {
+func NewNodeModel(url, collection string, rds *redis.Redis, opts ...cache.Option) (*Model, error) {
+	c := cache.NewCacheNode(rds, sharedCalls, stats, mgo.ErrNotFound, opts...)
+	return createModel(url, collection, c, func(collection mongo.Collection) *cachedCollection {
 		return newCollection(collection, c)
 	})
 }

-func NewModel(url, database, collection string, conf cache.CacheConf, opts ...cache.Option) (*Model, error) {
-	c := internal.NewCache(conf, sharedCalls, stats, mgo.ErrNotFound, opts...)
-	return createModel(url, database, collection, c, func(collection mongo.Collection) *cachedCollection {
+func NewModel(url, collection string, conf cache.CacheConf, opts ...cache.Option) (*Model, error) {
+	c := cache.NewCache(conf, sharedCalls, stats, mgo.ErrNotFound, opts...)
+	return createModel(url, collection, c, func(collection mongo.Collection) *cachedCollection {
 		return newCollection(collection, c)
 	})
 }
@@ -224,9 +223,9 @@ func (mm *Model) pipe(fn func(c *cachedCollection) mongo.Pipe) (mongo.Pipe, erro
 	return fn(mm.GetCollection(session)), nil
 }

-func createModel(url, database, collection string, c internal.Cache,
+func createModel(url, collection string, c cache.Cache,
 	create func(mongo.Collection) *cachedCollection) (*Model, error) {
-	model, err := mongo.NewModel(url, database, collection)
+	model, err := mongo.NewModel(url, collection)
 	if err != nil {
 		return nil, err
 	}
--- a/core/stores/sqlc/cachedsql.go
+++ b/core/stores/sqlc/cachedsql.go
@@ -5,7 +5,6 @@ import (
 	"time"

 	"github.com/tal-tech/go-zero/core/stores/cache"
-	"github.com/tal-tech/go-zero/core/stores/internal"
 	"github.com/tal-tech/go-zero/core/stores/redis"
 	"github.com/tal-tech/go-zero/core/stores/sqlx"
 	"github.com/tal-tech/go-zero/core/syncx"
@@ -19,7 +18,7 @@ var (

 	// can't use one SharedCalls per conn, because multiple conns may share the same cache key.
 	exclusiveCalls = syncx.NewSharedCalls()
-	stats          = internal.NewCacheStat("sqlc")
+	stats          = cache.NewCacheStat("sqlc")
 )

 type (
@@ -30,21 +29,21 @@ type (

 	CachedConn struct {
 		db    sqlx.SqlConn
-		cache internal.Cache
+		cache cache.Cache
 	}
 )

 func NewNodeConn(db sqlx.SqlConn, rds *redis.Redis, opts ...cache.Option) CachedConn {
 	return CachedConn{
 		db:    db,
-		cache: internal.NewCacheNode(rds, exclusiveCalls, stats, sql.ErrNoRows, opts...),
+		cache: cache.NewCacheNode(rds, exclusiveCalls, stats, sql.ErrNoRows, opts...),
 	}
 }

 func NewConn(db sqlx.SqlConn, c cache.CacheConf, opts ...cache.Option) CachedConn {
 	return CachedConn{
 		db:    db,
-		cache: internal.NewCache(c, exclusiveCalls, stats, sql.ErrNoRows, opts...),
+		cache: cache.NewCache(c, exclusiveCalls, stats, sql.ErrNoRows, opts...),
 	}
 }

--- a/doc/goctl.md
+++ b/doc/goctl.md
@@ -95,20 +95,20 @@ service user-api {
    )
    @server(
        handler: GetUserHandler
-        folder: user
+        group: user
    )
    get /api/user/:name(getRequest) returns(getResponse)

    @server(
        handler: CreateUserHandler
-        folder: user
+        group: user
    )
    post /api/users/create(createRequest)
 }

@server(
    jwt: Auth
-    folder: profile
+    group: profile
 )
 service user-api {
    @doc(summary: user title)
@@ -135,7 +135,7 @@ service user-api {

 1. info部分：描述了api基本信息，比如Auth，api是哪个用途。
 2. type部分：type类型声明和golang语法兼容。
-3. service部分：service代表一组服务，一个服务可以由多组名称相同的service组成，可以针对每一组service配置jwt和auth认证，另外通过folder属性可以指定service生成所在子目录。
+3. service部分：service代表一组服务，一个服务可以由多组名称相同的service组成，可以针对每一组service配置jwt和auth认证，另外通过group属性可以指定service生成所在子目录。
   service里面包含api路由，比如上面第一组service的第一个路由，doc用来描述此路由的用途，GetProfileHandler表示处理这个路由的handler，
   `get /api/profile/:name(getRequest) returns(getResponse)` 中get代表api的请求方式（get/post/put/delete）, `/api/profile/:name` 描述了路由path，`:name`通过
   请求getRequest里面的属性赋值，getResponse为返回的结构体，这两个类型都定义在2描述的类型中。
@@ -239,10 +239,10 @@ src 示例代码如下
  ```

 结构体中不需要提供Id,CreateTime,UpdateTime三个字段，会自动生成
-结构体中每个tag有两个可选标签 c 和 o  
-c 是改字段的注释  
-o 是改字段需要生产的操作函数 可以取得get,find,set 分别表示生成返回单个对象的查询方法，返回多个对象的查询方法，设置该字段方法  
-生成的目标文件会覆盖该简单go文件  
+结构体中每个tag有两个可选标签 c 和 o
+c 是该字段的注释
+o 是该字段需要生产的操作函数 可以取得get,find,set 分别表示生成返回单个对象的查询方法，返回多个对象的查询方法，设置该字段方法
+生成的目标文件会覆盖该简单go文件

 ## goctl rpc生成（业务剥离中，暂未开放）

--- a/doc/images/wechat.jpg
+++ b/doc/images/wechat.jpg
--- a/doc/sharedcalls.md
+++ b/doc/sharedcalls.md
@@ -106,10 +106,10 @@ func main() {

    // 没有拿到结果，则调用makeCall方法去获取资源，注意此处仍然是锁住的，可以保证只有一个goroutine可以调用makecall
    c := g.makeCall(key, fn)
-  // 返回调用结果
+    // 返回调用结果
    return c.val, c.err
  }
-```
+  ```
  
 - sharedGroup的DoEx方法

@@ -160,7 +160,7 @@ func main() {
    c.val, c.err = fn()
    return c
  }
-```
+  ```

 ## 最后

--- a/doc/shorturl.md
+++ b/doc/shorturl.md
@@ -78,7 +78,13 @@

 ## 5. 编写API Gateway代码

-* 通过goctl生成`api/shorturl.api`并编辑，为了简洁，去除了文件开头的`info`，代码如下：
+* 在`shorturl/api`目录下通过goctl生成`api/shorturl.api`：
+
+  ```shell
+  goctl api -o shorturl.api
+  ```
+
+* 编辑`api/shorturl.api`，为了简洁，去除了文件开头的`info`，代码如下：

  ```go
  type (
--- a/example/bookstore/api/bookstore.api
+++ b/example/bookstore/api/bookstore.api
@@ -1,33 +1,33 @@
 type (
-	addReq struct {
-		book  string `form:"book"`
-		price int64  `form:"price"`
-	}
+    addReq struct {
+        book string `form:"book"`
+        price int64 `form:"price"`
+    }

-	addResp struct {
-		ok bool `json:"ok"`
-	}
+    addResp struct {
+        ok bool `json:"ok"`
+    }
 )

 type (
-	checkReq struct {
-		book string `form:"book"`
-	}
+    checkReq struct {
+        book string `form:"book"`
+    }

-	checkResp struct {
-		found bool  `json:"found"`
-		price int64 `json:"price"`
-	}
+    checkResp struct {
+        found bool `json:"found"`
+        price int64 `json:"price"`
+    }
 )

 service bookstore-api {
    @server(
        handler: AddHandler
    )
-    get /add(addReq) returns(addResp)
+    get /add (addReq) returns (addResp)

    @server(
        handler: CheckHandler
    )
-    get /check(checkReq) returns(checkResp)
+    get /check (checkReq) returns (checkResp)
 }
--- a/example/bookstore/api/internal/handler/addhandler.go
+++ b/example/bookstore/api/internal/handler/addhandler.go
@@ -1,10 +1,11 @@
 package handler

 import (
+	"net/http"
+
 	"bookstore/api/internal/logic"
 	"bookstore/api/internal/svc"
 	"bookstore/api/internal/types"
-	"net/http"

 	"github.com/tal-tech/go-zero/rest/httpx"
 )
--- a/example/bookstore/api/internal/handler/checkhandler.go
+++ b/example/bookstore/api/internal/handler/checkhandler.go
@@ -1,10 +1,11 @@
 package handler

 import (
+	"net/http"
+
 	"bookstore/api/internal/logic"
 	"bookstore/api/internal/svc"
 	"bookstore/api/internal/types"
-	"net/http"

 	"github.com/tal-tech/go-zero/rest/httpx"
 )
--- a/example/bookstore/api/internal/handler/routes.go
+++ b/example/bookstore/api/internal/handler/routes.go
@@ -2,9 +2,10 @@
 package handler

 import (
-	"bookstore/api/internal/svc"
 	"net/http"

+	"bookstore/api/internal/svc"
+
 	"github.com/tal-tech/go-zero/rest"
 )

--- a/example/bookstore/api/internal/logic/addlogic.go
+++ b/example/bookstore/api/internal/logic/addlogic.go
@@ -1,10 +1,11 @@
 package logic

 import (
+	"context"
+
 	"bookstore/api/internal/svc"
 	"bookstore/api/internal/types"
 	"bookstore/rpc/add/adder"
-	"context"

 	"github.com/tal-tech/go-zero/core/logx"
 )
@@ -35,4 +36,4 @@ func (l *AddLogic) Add(req types.AddReq) (*types.AddResp, error) {
 	return &types.AddResp{
 		Ok: resp.Ok,
 	}, nil
-}
+}
--- a/example/bookstore/api/internal/logic/checklogic.go
+++ b/example/bookstore/api/internal/logic/checklogic.go
@@ -1,10 +1,11 @@
 package logic

 import (
+	"context"
+
 	"bookstore/api/internal/svc"
 	"bookstore/api/internal/types"
 	"bookstore/rpc/check/checker"
-	"context"

 	"github.com/tal-tech/go-zero/core/logx"
 )
@@ -25,7 +26,7 @@ func NewCheckLogic(ctx context.Context, svcCtx *svc.ServiceContext) CheckLogic {

 func (l *CheckLogic) Check(req types.CheckReq) (*types.CheckResp, error) {
 	resp, err := l.svcCtx.Checker.Check(l.ctx, &checker.CheckReq{
-		Book:  req.Book,
+		Book: req.Book,
 	})
 	if err != nil {
 		return nil, err
@@ -35,4 +36,4 @@ func (l *CheckLogic) Check(req types.CheckReq) (*types.CheckResp, error) {
 		Found: resp.Found,
 		Price: resp.Price,
 	}, nil
-}
+}
--- a/example/bookstore/go.mod
+++ b/example/bookstore/go.mod
@@ -5,7 +5,7 @@ go 1.15
 require (
 	github.com/golang/mock v1.4.3
 	github.com/golang/protobuf v1.4.2
-	github.com/tal-tech/go-zero v1.0.11
+	github.com/tal-tech/go-zero v1.0.16
 	golang.org/x/net v0.0.0-20200707034311-ab3426394381
 	google.golang.org/grpc v1.29.1
 )
--- a/example/bookstore/go.sum
+++ b/example/bookstore/go.sum
@@ -1,13 +1,17 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/ClickHouse/clickhouse-go v1.4.3/go.mod h1:EaI/sW7Azgz9UATzd5ZdZHRUhHgv5+JMS9NSr2smCJI=
+github.com/DATA-DOG/go-sqlmock v1.4.1 h1:ThlnYciV1iM/V0OSF/dtkqWb6xo5qITT1TJBG1MRDJM=
 github.com/DATA-DOG/go-sqlmock v1.4.1/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
 github.com/StackExchange/wmi v0.0.0-20170410192909-ea383cf3ba6e/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alicebob/gopher-json v0.0.0-20180125190556-5a6b3ba71ee6 h1:45bxf7AZMwWcqkLzDAQugVEwedisr5nRJ1r+7LYnv0U=
 github.com/alicebob/gopher-json v0.0.0-20180125190556-5a6b3ba71ee6/go.mod h1:SGnFV6hVsYE877CKEZ6tDNTjaSXYUk6QqoIK6PrAtcc=
+github.com/alicebob/miniredis v2.5.0+incompatible h1:yBHoLpsyjupjz3NL3MhKMVkR41j82Yjf3KFv7ApYzUI=
 github.com/alicebob/miniredis v2.5.0+incompatible/go.mod h1:8HZjEj4yU0dwhYHky+DxYx+6BMjkBbe5ONFIF1MXffk=
 github.com/antihax/optional v0.0.0-20180407024304-ca021399b1a6/go.mod h1:V8iCPQYkqmusNa815XgQio277wI47sdRh1dUOLdyC6Q=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
@@ -25,6 +29,7 @@ github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMn
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cloudflare/golz4 v0.0.0-20150217214814-ef862a3cdc58/go.mod h1:EOBUe0h4xcZ5GoxqC5SDxFQ8gwyZPKQoEzownBlhI80=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
+github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa h1:OaNxuTZr7kxeODyLWsRMC+OD03aFUH+mW6r2d+MWa5Y=
 github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
 github.com/coreos/go-semver v0.2.0 h1:3Jm3tLmsgAYcjC+4Up7hJrFBPr+n7rAqYeSw/SZazuY=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
@@ -33,11 +38,13 @@ github.com/coreos/go-systemd/v22 v22.0.0/go.mod h1:xO0FLkIi5MaZafQlIrOotqXZ90ih+
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dchest/siphash v1.2.1/go.mod h1:q+IRvb2gOSrUnYoPqHiyHXS0FOBBOdl6tONBlVnOnt4=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/dsymonds/gotoc v0.0.0-20160928043926-5aebcfc91819/go.mod h1:MvzMVHq8BH2Ji/o8TGDocVA70byvLrAgFTxkEnmjO4Y=
+github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4 h1:qk/FSDDxo05wdJH28W+p5yivv7LuLYLRXPPD8KQCtZs=
 github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
@@ -46,6 +53,7 @@ github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
 github.com/frankban/quicktest v1.7.2/go.mod h1:jaStnuzAqU1AJdCO0l53JDCJrVDKcS03DbaAcR7Ks/o=
+github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/globalsign/mgo v0.0.0-20181015135952-eeefdecb41b8/go.mod h1:xkRDCp4j0OGD1HRkm4kmhM+pmpv3AKq5SU7GMg4oO/Q=
@@ -62,6 +70,7 @@ github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LB
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/go-xorm/builder v0.3.4 h1:FxkeGB4Cggdw3tPwutLCpfjng2jugfkg6LDMrd/KsoY=
 github.com/go-xorm/builder v0.3.4/go.mod h1:KxkQkNN1DpPKTedxXyTQcmH+rXfvk4LZ9SOOBoZBAxw=
+github.com/go-xorm/sqlfiddle v0.0.0-20180821085327-62ce714f951a h1:9wScpmSP5A3Bk8V3XHWUcJmYTh+ZnlHVyc+A4oZYS3Y=
 github.com/go-xorm/sqlfiddle v0.0.0-20180821085327-62ce714f951a/go.mod h1:56xuuqnHyryaerycW3BfssRdxQstACi0Epw/yC5E2xM=
 github.com/godbus/dbus/v5 v5.0.3/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
@@ -70,6 +79,7 @@ github.com/gogo/protobuf v1.3.1 h1:DqDEcV5aeaTmdFBePNpYsp3FlcVH/2ISVVM9Qf8PSls=
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@@ -86,12 +96,15 @@ github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvq
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@@ -100,18 +113,25 @@ github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+
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@@ -123,11 +143,14 @@ github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvW
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@@ -146,20 +169,26 @@ github.com/mattn/go-sqlite3 v1.9.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOq
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@@ -185,29 +214,37 @@ github.com/shirou/gopsutil v0.0.0-20180427012116-c95755e4bcd7/go.mod h1:5b4v6he4
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 go.etcd.io/etcd v0.0.0-20200402134248-51bdeb39e698/go.mod h1:YoUyTScD3Vcv2RBm3eGVOq7i1ULiz3OuXoQFWOirmAM=
@@ -217,6 +254,7 @@ go.uber.org/automaxprocs v1.3.0 h1:II28aZoGdaglS5vVNnspf28lnZpXScxtIozx1lAjdb0=
 go.uber.org/automaxprocs v1.3.0/go.mod h1:9CWT6lKIep8U41DDaPiH6eFscnTyjfTANNQNx6LrIcA=
 go.uber.org/multierr v1.5.0 h1:KCa4XfM8CWFCpxXRGok+Q0SS/0XBhMDbHHGABQLvD2A=
 go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU=
+go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee h1:0mgffUl7nfd+FpvXMVz4IDEaUSmT1ysygQC7qYo7sG4=
 go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA=
 go.uber.org/zap v1.14.1 h1:nYDKopTbvAPq/NrUVZwT15y2lpROBiLLyoRTbXOYWOo=
 go.uber.org/zap v1.14.1/go.mod h1:Mb2vm2krFEG5DV0W9qcHBYFtp/Wku1cvYaqPsS/WYfc=
@@ -225,6 +263,7 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191002192127-34f69633bfdc/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 h1:psW17arqaxU48Z5kZ0CQnkZWQJsqcURM6tKiBApRjXI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
@@ -232,9 +271,11 @@ golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvx
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
+golang.org/x/lint v0.0.0-20200302205851-738671d3881b h1:Wh+f8QHJXR411sJR8/vRBTZ7YapZaRvUcLFFJhusH0k=
 golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
 golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
 golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
+golang.org/x/mod v0.2.0 h1:KU7oHjnv3XNWfa5COkzUifxZmxp1TyI7ImMXqFxLwvQ=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -274,12 +315,14 @@ golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200728102440-3e129f6d46b1 h1:sIky/MyNRSHTrdxfsiUSS4WIAMvInbeXljJz+jDjeYE=
 golang.org/x/sys v0.0.0-20200728102440-3e129f6d46b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/time v0.0.0-20191024005414-555d28b269f0 h1:/5xXl8Y5W96D+TtHSlonuFqGHIWVuyCkGJLwGh9JJFs=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -296,9 +339,11 @@ golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20191125144606-a911d9008d1f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191130070609-6e064ea0cf2d/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
+golang.org/x/tools v0.0.0-20200410132612-ae9902aceb98 h1:ibc1eDGW5ajwA4qzFTj0WHlD9eofMe1gAre+A0a3Vhs=
 golang.org/x/tools v0.0.0-20200410132612-ae9902aceb98/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -330,12 +375,15 @@ google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlba
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/cheggaaa/pb.v1 v1.0.25/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw=
 gopkg.in/cheggaaa/pb.v1 v1.0.28/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
+gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
@@ -348,9 +396,11 @@ gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+honnef.co/go/tools v0.0.1-2020.1.4 h1:UoveltGrhghAA7ePc+e+QYDHXrBps2PqFZiHkGR/xK8=
 honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
 rsc.io/goversion v1.0.0/go.mod h1:Eih9y/uIBS3ulggl7KNJ09xGSLcuNaLgmvvqa07sgfo=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
 sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
--- a/example/bookstore/rpc/add/adder/adder.go
+++ b/example/bookstore/rpc/add/adder/adder.go
@@ -6,9 +6,10 @@
 package adder

 import (
-	add "bookstore/rpc/add/pb"
 	"context"

+	add "bookstore/rpc/add/pb"
+
 	"github.com/tal-tech/go-zero/core/jsonx"
 	"github.com/tal-tech/go-zero/zrpc"
 )
--- a/example/bookstore/rpc/add/internal/logic/addlogic.go
+++ b/example/bookstore/rpc/add/internal/logic/addlogic.go
@@ -1,10 +1,11 @@
 package logic

 import (
+	"context"
+
 	"bookstore/rpc/add/internal/svc"
 	add "bookstore/rpc/add/pb"
 	"bookstore/rpc/model"
-	"context"

 	"github.com/tal-tech/go-zero/core/logx"
 )
@@ -35,4 +36,4 @@ func (l *AddLogic) Add(in *add.AddReq) (*add.AddResp, error) {
 	return &add.AddResp{
 		Ok: true,
 	}, nil
-}
+}
--- a/example/bookstore/rpc/add/internal/server/adderserver.go
+++ b/example/bookstore/rpc/add/internal/server/adderserver.go
@@ -4,10 +4,11 @@
 package server

 import (
+	"context"
+
 	"bookstore/rpc/add/internal/logic"
 	"bookstore/rpc/add/internal/svc"
 	add "bookstore/rpc/add/pb"
-	"context"
 )

 type AdderServer struct {
--- a/example/bookstore/rpc/check/checker/checker.go
+++ b/example/bookstore/rpc/check/checker/checker.go
@@ -6,9 +6,10 @@
 package checker

 import (
-	check "bookstore/rpc/check/pb"
 	"context"

+	check "bookstore/rpc/check/pb"
+
 	"github.com/tal-tech/go-zero/core/jsonx"
 	"github.com/tal-tech/go-zero/zrpc"
 )
--- a/example/bookstore/rpc/check/internal/logic/checklogic.go
+++ b/example/bookstore/rpc/check/internal/logic/checklogic.go
@@ -1,9 +1,10 @@
 package logic

 import (
+	"context"
+
 	"bookstore/rpc/check/internal/svc"
 	check "bookstore/rpc/check/pb"
-	"context"

 	"github.com/tal-tech/go-zero/core/logx"
 )
@@ -32,4 +33,4 @@ func (l *CheckLogic) Check(in *check.CheckReq) (*check.CheckResp, error) {
 		Found: true,
 		Price: resp.Price,
 	}, nil
-}
+}
--- a/example/bookstore/rpc/check/internal/server/checkerserver.go
+++ b/example/bookstore/rpc/check/internal/server/checkerserver.go
@@ -4,10 +4,11 @@
 package server

 import (
+	"context"
+
 	"bookstore/rpc/check/internal/logic"
 	"bookstore/rpc/check/internal/svc"
 	check "bookstore/rpc/check/pb"
-	"context"
 )

 type CheckerServer struct {
--- a/example/mongo/time.go
+++ b/example/mongo/time.go
@@ -19,7 +19,7 @@ type Roster struct {
 }

 func main() {
-	model := mongo.MustNewModel("localhost:27017", "blackboard", "roster")
+	model := mongo.MustNewModel("localhost:27017/blackboard", "roster")
 	for i := 0; i < 1000; i++ {
 		session, err := model.TakeSession()
 		if err != nil {
--- a/example/rpc/server/unary/server.go
+++ b/example/rpc/server/unary/server.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"flag"
 	"fmt"
+	"log"
 	"os"
 	"sync"
 	"time"
@@ -50,5 +51,13 @@ func main() {
 	server := zrpc.MustNewServer(c, func(grpcServer *grpc.Server) {
 		unary.RegisterGreeterServer(grpcServer, NewGreetServer())
 	})
+	interceptor := func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (resp interface{}, err error) {
+		st := time.Now()
+		resp, err = handler(ctx, req)
+		log.Printf("method: %s time: %v\n", info.FullMethod, time.Since(st))
+		return resp, err
+	}
+
+	server.AddUnaryInterceptors(interceptor)
 	server.Start()
 }
--- a/example/shorturl/go.mod
+++ b/example/shorturl/go.mod
@@ -5,7 +5,7 @@ go 1.15
 require (
 	github.com/golang/mock v1.4.3
 	github.com/golang/protobuf v1.4.2
-	github.com/tal-tech/go-zero v1.0.7
+	github.com/tal-tech/go-zero v1.0.16
 	golang.org/x/net v0.0.0-20200707034311-ab3426394381
 	google.golang.org/grpc v1.29.1
 )
--- a/example/shorturl/go.sum
+++ b/example/shorturl/go.sum
@@ -1,12 +1,17 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/ClickHouse/clickhouse-go v1.4.3/go.mod h1:EaI/sW7Azgz9UATzd5ZdZHRUhHgv5+JMS9NSr2smCJI=
+github.com/DATA-DOG/go-sqlmock v1.4.1 h1:ThlnYciV1iM/V0OSF/dtkqWb6xo5qITT1TJBG1MRDJM=
 github.com/DATA-DOG/go-sqlmock v1.4.1/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
 github.com/StackExchange/wmi v0.0.0-20170410192909-ea383cf3ba6e/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alicebob/gopher-json v0.0.0-20180125190556-5a6b3ba71ee6 h1:45bxf7AZMwWcqkLzDAQugVEwedisr5nRJ1r+7LYnv0U=
 github.com/alicebob/gopher-json v0.0.0-20180125190556-5a6b3ba71ee6/go.mod h1:SGnFV6hVsYE877CKEZ6tDNTjaSXYUk6QqoIK6PrAtcc=
+github.com/alicebob/miniredis v2.5.0+incompatible h1:yBHoLpsyjupjz3NL3MhKMVkR41j82Yjf3KFv7ApYzUI=
 github.com/alicebob/miniredis v2.5.0+incompatible/go.mod h1:8HZjEj4yU0dwhYHky+DxYx+6BMjkBbe5ONFIF1MXffk=
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@@ -24,6 +29,7 @@ github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMn
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@@ -33,12 +39,14 @@ github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSY
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@@ -47,6 +55,7 @@ github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7
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@@ -57,11 +66,13 @@ github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V
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@@ -70,6 +81,7 @@ github.com/gogo/protobuf v1.3.1 h1:DqDEcV5aeaTmdFBePNpYsp3FlcVH/2ISVVM9Qf8PSls=
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@@ -86,12 +98,15 @@ github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvq
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@@ -100,18 +115,26 @@ github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+
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@@ -123,13 +146,16 @@ github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvW
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@@ -143,23 +169,30 @@ github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Ky
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@@ -187,31 +220,39 @@ github.com/shirou/w32 v0.0.0-20160930032740-bb4de0191aa4/go.mod h1:qsXQc7+bwAM3Q
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@@ -221,6 +262,7 @@ go.uber.org/automaxprocs v1.3.0 h1:II28aZoGdaglS5vVNnspf28lnZpXScxtIozx1lAjdb0=
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@@ -229,6 +271,7 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
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@@ -236,9 +279,11 @@ golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvx
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@@ -278,12 +323,14 @@ golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -300,9 +347,11 @@ golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtn
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@@ -334,12 +383,15 @@ google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlba
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 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
@@ -352,9 +404,11 @@ gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+honnef.co/go/tools v0.0.1-2020.1.4 h1:UoveltGrhghAA7ePc+e+QYDHXrBps2PqFZiHkGR/xK8=
 honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
 rsc.io/goversion v1.0.0/go.mod h1:Eih9y/uIBS3ulggl7KNJ09xGSLcuNaLgmvvqa07sgfo=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
 sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
--- a/readme.md
+++ b/readme.md
@@ -149,18 +149,23 @@ go get -u github.com/tal-tech/go-zero

 [测试代码见这里](https://github.com/smallnest/go-web-framework-benchmark)

-## 8. 文档 (逐步完善中)
+## 8. 文档

-* [快速构建高并发微服务](doc/shorturl.md)
-* [快速构建高并发微服务-多RPC版](doc/bookstore.md)
-* [goctl使用帮助](doc/goctl.md)
-* [通过MapReduce降低服务响应时间](doc/mapreduce.md)
-* [关键字替换和敏感词过滤工具](doc/keywords.md)
-* [进程内缓存使用方法](doc/collection.md)
-* [防止缓存击穿之进程内共享调用](doc/sharedcalls.md)
-* [基于prometheus的微服务指标监控](doc/metric.md)
-* [文本序列化和反序列化](doc/mapping.md)
-* [快速构建jwt鉴权认证](doc/jwt.md)
+* API文档 (逐步完善中)
+
+  [https://www.yuque.com/tal-tech/go-zero](https://www.yuque.com/tal-tech/go-zero)
+
+* awesome系列
+  * [快速构建高并发微服务](doc/shorturl.md)
+  * [快速构建高并发微服务-多RPC版](doc/bookstore.md)
+  * [goctl使用帮助](doc/goctl.md)
+  * [通过MapReduce降低服务响应时间](doc/mapreduce.md)
+  * [关键字替换和敏感词过滤工具](doc/keywords.md)
+  * [进程内缓存使用方法](doc/collection.md)
+  * [防止缓存击穿之进程内共享调用](doc/sharedcalls.md)
+  * [基于prometheus的微服务指标监控](doc/metric.md)
+  * [文本序列化和反序列化](doc/mapping.md)
+  * [快速构建jwt鉴权认证](doc/jwt.md)

 ## 9. 微信交流群

--- a/rest/engine.go
+++ b/rest/engine.go
@@ -110,7 +110,7 @@ func (s *engine) bindRoute(fr featuredRoutes, router httpx.Router, metrics *stat
 		handler.TimeoutHandler(time.Duration(s.conf.Timeout)*time.Millisecond),
 		handler.RecoverHandler,
 		handler.MetricHandler(metrics),
-		handler.PromMetricHandler(route.Path),
+		handler.PromethousHandler(route.Path),
 		handler.MaxBytesHandler(s.conf.MaxBytes),
 		handler.GunzipHandler,
 	)
--- a/rest/handler/prometheushandler.go
+++ b/rest/handler/prometheushandler.go
@@ -31,7 +31,7 @@ var (
 	})
 )

-func PromMetricHandler(path string) func(http.Handler) http.Handler {
+func PromethousHandler(path string) func(http.Handler) http.Handler {
 	return func(next http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			startTime := timex.Now()
--- a/rest/handler/prometheushandler_test.go
+++ b/rest/handler/prometheushandler_test.go
@@ -9,7 +9,7 @@ import (
 )

 func TestPromMetricHandler(t *testing.T) {
-	promMetricHandler := PromMetricHandler("/user/login")
+	promMetricHandler := PromethousHandler("/user/login")
 	handler := promMetricHandler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusOK)
 	}))
--- a/tools/goctl/api/gogen/genhandlers.go
+++ b/tools/goctl/api/gogen/genhandlers.go
@@ -183,9 +183,9 @@ func getHandlerBaseName(handler string) string {
 }

 func getHandlerFolderPath(group spec.Group, route spec.Route) string {
-	folder, ok := apiutil.GetAnnotationValue(route.Annotations, "server", folderProperty)
+	folder, ok := apiutil.GetAnnotationValue(route.Annotations, "server", groupProperty)
 	if !ok {
-		folder, ok = apiutil.GetAnnotationValue(group.Annotations, "server", folderProperty)
+		folder, ok = apiutil.GetAnnotationValue(group.Annotations, "server", groupProperty)
 		if !ok {
 			return handlerDir
 		}
--- a/tools/goctl/api/gogen/genlogic.go
+++ b/tools/goctl/api/gogen/genlogic.go
@@ -113,9 +113,9 @@ func genLogicByRoute(dir string, group spec.Group, route spec.Route) error {
 }

 func getLogicFolderPath(group spec.Group, route spec.Route) string {
-	folder, ok := util.GetAnnotationValue(route.Annotations, "server", folderProperty)
+	folder, ok := util.GetAnnotationValue(route.Annotations, "server", groupProperty)
 	if !ok {
-		folder, ok = util.GetAnnotationValue(group.Annotations, "server", folderProperty)
+		folder, ok = util.GetAnnotationValue(group.Annotations, "server", groupProperty)
 		if !ok {
 			return logicDir
 		}
--- a/tools/goctl/api/gogen/genroutes.go
+++ b/tools/goctl/api/gogen/genroutes.go
@@ -136,9 +136,9 @@ func genRouteImports(parentPkg string, api *spec.ApiSpec) string {
 	importSet.AddStr(fmt.Sprintf("\"%s\"", util.JoinPackages(parentPkg, contextDir)))
 	for _, group := range api.Service.Groups {
 		for _, route := range group.Routes {
-			folder, ok := apiutil.GetAnnotationValue(route.Annotations, "server", folderProperty)
+			folder, ok := apiutil.GetAnnotationValue(route.Annotations, "server", groupProperty)
 			if !ok {
-				folder, ok = apiutil.GetAnnotationValue(group.Annotations, "server", folderProperty)
+				folder, ok = apiutil.GetAnnotationValue(group.Annotations, "server", groupProperty)
 				if !ok {
 					continue
 				}
@@ -165,11 +165,11 @@ func getRoutes(api *spec.ApiSpec) ([]group, error) {
 				return nil, fmt.Errorf("missing handler annotation for route %q", r.Path)
 			}
 			handler = getHandlerBaseName(handler) + "Handler(serverCtx)"
-			folder, ok := apiutil.GetAnnotationValue(r.Annotations, "server", folderProperty)
+			folder, ok := apiutil.GetAnnotationValue(r.Annotations, "server", groupProperty)
 			if ok {
 				handler = folder + "." + strings.ToUpper(handler[:1]) + handler[1:]
 			} else {
-				folder, ok = apiutil.GetAnnotationValue(g.Annotations, "server", folderProperty)
+				folder, ok = apiutil.GetAnnotationValue(g.Annotations, "server", groupProperty)
 				if ok {
 					handler = folder + "." + strings.ToUpper(handler[:1]) + handler[1:]
 				}
--- a/tools/goctl/api/gogen/vars.go
+++ b/tools/goctl/api/gogen/vars.go
@@ -1,12 +1,12 @@
 package gogen

 const (
-	interval       = "internal/"
-	typesPacket    = "types"
-	configDir      = interval + "config"
-	contextDir     = interval + "svc"
-	handlerDir     = interval + "handler"
-	logicDir       = interval + "logic"
-	typesDir       = interval + typesPacket
-	folderProperty = "folder"
+	interval      = "internal/"
+	typesPacket   = "types"
+	configDir     = interval + "config"
+	contextDir    = interval + "svc"
+	handlerDir    = interval + "handler"
+	logicDir      = interval + "logic"
+	typesDir      = interval + typesPacket
+	groupProperty = "group"
 )
--- a/tools/goctl/api/parser/servicestate.go
+++ b/tools/goctl/api/parser/servicestate.go
@@ -88,18 +88,20 @@ func (p *serviceEntityParser) parseLine(line string, api *spec.ApiSpec, annos []
 		}
 	}

-	if len(fields) < 3 {
+	if len(fields) < 2 {
 		return defaultErr
 	}
-
 	method := fields[0]
 	path := fields[1]
-	req := fields[2]
-	var returns string
+	var req string
+	var resp string

+	if len(fields) > 2 {
+		req = fields[2]
+	}
 	if stringx.Contains(fields, returnsTag) {
 		if fields[len(fields)-1] != returnsTag {
-			returns = fields[len(fields)-1]
+			resp = fields[len(fields)-1]
 		} else {
 			return defaultErr
 		}
@@ -113,7 +115,7 @@ func (p *serviceEntityParser) parseLine(line string, api *spec.ApiSpec, annos []
 		Method:       method,
 		Path:         path,
 		RequestType:  GetType(api, req),
-		ResponseType: GetType(api, returns),
+		ResponseType: GetType(api, resp),
 	})

 	return nil
--- a/tools/goctl/api/parser/util.go
+++ b/tools/goctl/api/parser/util.go
@@ -75,12 +75,12 @@ func MatchStruct(api string) (*ApiStruct, error) {
 	var parseInfo = false
 	var parseImport = false
 	var parseType = false
-	var parseSevice = false
+	var parseService = false
 	var segment string
 	for scanner.Scan() {
 		line := strings.TrimSpace(scanner.Text())

-		if line == "@doc(" {
+		if line == "info(" {
 			parseInfo = true
 		}
 		if line == ")" && parseInfo {
@@ -90,35 +90,46 @@ func MatchStruct(api string) (*ApiStruct, error) {
 			continue
 		}

-		if strings.HasPrefix(line, "import") {
+		if isImportBeginLine(line) {
 			parseImport = true
 		}
-		if parseImport && (strings.HasPrefix(line, "type") || strings.HasPrefix(line, "@server") ||
-			strings.HasPrefix(line, "service")) {
+		if parseImport && (isTypeBeginLine(line) || isServiceBeginLine(line)) {
 			parseImport = false
 			result.Imports = segment
 			segment = line + "\n"
 			continue
 		}

-		if strings.HasPrefix(line, "type") {
+		if isTypeBeginLine(line) {
 			parseType = true
 		}
-		if strings.HasPrefix(line, "@server") || strings.HasPrefix(line, "service") {
+		if isServiceBeginLine(line) {
 			if parseType {
 				parseType = false
 				result.StructBody = segment
 				segment = line + "\n"
 				continue
 			}
-			parseSevice = true
+			parseService = true
 		}
 		segment += scanner.Text() + "\n"
 	}

-	if !parseSevice {
+	if !parseService {
 		return nil, errors.New("no service defined")
 	}
 	result.Service = segment
 	return &result, nil
 }
+
+func isImportBeginLine(line string) bool {
+	return strings.HasPrefix(line, "import") && strings.HasSuffix(line, ".api")
+}
+
+func isTypeBeginLine(line string) bool {
+	return strings.HasPrefix(line, "type")
+}
+
+func isServiceBeginLine(line string) bool {
+	return strings.HasPrefix(line, "@server(") || (strings.HasPrefix(line, "service") && strings.HasSuffix(line, "{"))
+}
--- a/tools/goctl/goctl.md
+++ b/tools/goctl/goctl.md
@@ -82,20 +82,20 @@ service user-api {
    )
    @server(
        handler: GetUserHandler
-        folder: user
+        group: user
    )
    get /api/user/:name(getRequest) returns(getResponse)

    @server(
        handler: CreateUserHandler
-        folder: user
+        group: user
    )
    post /api/users/create(createRequest)
 }

@server(
    jwt: Auth
-    folder: profile
+    group: profile
 )
 service user-api {
    @doc(summary: user title)
@@ -121,7 +121,7 @@ service user-api {

 1. info部分：描述了api基本信息，比如Auth，api是哪个用途。
 2. type部分：type类型声明和golang语法兼容。
-3. service部分：service代表一组服务，一个服务可以由多组名称相同的service组成，可以针对每一组service配置folder属性来指定service生成所在子目录。
+3. service部分：service代表一组服务，一个服务可以由多组名称相同的service组成，可以针对每一组service配置group属性来指定service生成所在子目录。
   service里面包含api路由，比如上面第一组service的第一个路由，doc用来描述此路由的用途，GetProfileHandler表示处理这个路由的handler，
   `get /api/profile/:name(getRequest) returns(getResponse)` 中get代表api的请求方式（get/post/put/delete）, `/api/profile/:name` 描述了路由path，`:name`通过
   请求getRequest里面的属性赋值，getResponse为返回的结构体，这两个类型都定义在2描述的类型中。
--- a/tools/goctl/util/project/project.go
+++ b/tools/goctl/util/project/project.go
@@ -91,19 +91,13 @@ func Prepare(projectDir string, checkGrpcEnv bool) (*Project, error) {
 			return nil, err
 		}
 	} else {
-		pwd, err := execx.Run("pwd", projectDir)
+		pwd, err := filepath.Abs(projectDir)
 		if err != nil {
 			return nil, err
 		}
-		pwd = filepath.Clean(strings.TrimSpace(pwd))

 		if !strings.HasPrefix(pwd, src) {
-			absPath, err := filepath.Abs(projectDir)
-			if err != nil {
-				return nil, err
-			}
-
-			name = filepath.Clean(filepath.Base(absPath))
+			name = filepath.Clean(filepath.Base(pwd))
 			path = projectDir
 			pkg = name
 			isInGoEnv = false
@@ -133,7 +127,7 @@ func Prepare(projectDir string, checkGrpcEnv bool) (*Project, error) {

 func matchModule(data []byte) (string, error) {
 	text := string(data)
-	re := regexp.MustCompile(`(?m)^\s*module\s+[a-z0-9/\-.]+$`)
+	re := regexp.MustCompile(`(?m)^\s*module\s+[a-z0-9_/\-.]+$`)
 	matches := re.FindAllString(text, -1)
 	if len(matches) == 1 {
 		target := matches[0]
--- a/zrpc/client.go
+++ b/zrpc/client.go
@@ -16,7 +16,10 @@ var (
 )

 type (
+	ClientOption = internal.ClientOption
+
 	Client interface {
+		AddInterceptor(interceptor grpc.UnaryClientInterceptor)
 		Conn() *grpc.ClientConn
 	}

@@ -25,7 +28,7 @@ type (
 	}
 )

-func MustNewClient(c RpcClientConf, options ...internal.ClientOption) Client {
+func MustNewClient(c RpcClientConf, options ...ClientOption) Client {
 	cli, err := NewClient(c, options...)
 	if err != nil {
 		log.Fatal(err)
@@ -34,8 +37,8 @@ func MustNewClient(c RpcClientConf, options ...internal.ClientOption) Client {
 	return cli
 }

-func NewClient(c RpcClientConf, options ...internal.ClientOption) (Client, error) {
-	var opts []internal.ClientOption
+func NewClient(c RpcClientConf, options ...ClientOption) (Client, error) {
+	var opts []ClientOption
 	if c.HasCredential() {
 		opts = append(opts, WithDialOption(grpc.WithPerRPCCredentials(&auth.Credential{
 			App:   c.App,
@@ -74,10 +77,14 @@ func NewClientNoAuth(c discov.EtcdConf) (Client, error) {
 	}, nil
 }

-func NewClientWithTarget(target string, opts ...internal.ClientOption) (Client, error) {
+func NewClientWithTarget(target string, opts ...ClientOption) (Client, error) {
 	return internal.NewClient(target, opts...)
 }

+func (rc *RpcClient) AddInterceptor(interceptor grpc.UnaryClientInterceptor) {
+	rc.client.AddInterceptor(interceptor)
+}
+
 func (rc *RpcClient) Conn() *grpc.ClientConn {
 	return rc.client.Conn()
 }
--- a/zrpc/internal/client.go
+++ b/zrpc/internal/client.go
@@ -2,7 +2,9 @@ package internal

 import (
 	"context"
+	"errors"
 	"fmt"
+	"strings"
 	"time"

 	"github.com/tal-tech/go-zero/zrpc/internal/balancer/p2c"
@@ -11,7 +13,10 @@ import (
 	"google.golang.org/grpc"
 )

-const dialTimeout = time.Second * 3
+const (
+	dialTimeout = time.Second * 3
+	separator   = '/'
+)

 func init() {
 	resolver.RegisterResolver()
@@ -26,24 +31,75 @@ type (
 	ClientOption func(options *ClientOptions)

 	client struct {
-		conn *grpc.ClientConn
+		conn         *grpc.ClientConn
+		interceptors []grpc.UnaryClientInterceptor
 	}
 )

 func NewClient(target string, opts ...ClientOption) (*client, error) {
+	var cli client
 	opts = append(opts, WithDialOption(grpc.WithBalancerName(p2c.Name)))
-	conn, err := dial(target, opts...)
-	if err != nil {
+	if err := cli.dial(target, opts...); err != nil {
 		return nil, err
 	}

-	return &client{conn: conn}, nil
+	return &cli, nil
+}
+
+func (c *client) AddInterceptor(interceptor grpc.UnaryClientInterceptor) {
+	c.interceptors = append(c.interceptors, interceptor)
 }

 func (c *client) Conn() *grpc.ClientConn {
 	return c.conn
 }

+func (c *client) buildDialOptions(opts ...ClientOption) []grpc.DialOption {
+	var clientOptions ClientOptions
+	for _, opt := range opts {
+		opt(&clientOptions)
+	}
+
+	options := []grpc.DialOption{
+		grpc.WithInsecure(),
+		grpc.WithBlock(),
+		WithUnaryClientInterceptors(
+			clientinterceptors.TracingInterceptor,
+			clientinterceptors.DurationInterceptor,
+			clientinterceptors.BreakerInterceptor,
+			clientinterceptors.PrometheusInterceptor,
+			clientinterceptors.TimeoutInterceptor(clientOptions.Timeout),
+		),
+	}
+	for _, interceptor := range c.interceptors {
+		options = append(options, WithUnaryClientInterceptors(interceptor))
+	}
+
+	return append(options, clientOptions.DialOptions...)
+}
+
+func (c *client) dial(server string, opts ...ClientOption) error {
+	options := c.buildDialOptions(opts...)
+	timeCtx, cancel := context.WithTimeout(context.Background(), dialTimeout)
+	defer cancel()
+	conn, err := grpc.DialContext(timeCtx, server, options...)
+	if err != nil {
+		service := server
+		if errors.Is(err, context.DeadlineExceeded) {
+			pos := strings.LastIndexByte(server, separator)
+			// len(server) - 1 is the index of last char
+			if 0 < pos && pos < len(server)-1 {
+				service = server[pos+1:]
+			}
+		}
+		return fmt.Errorf("rpc dial: %s, error: %s, make sure rpc service %q is alread started",
+			server, err.Error(), service)
+	}
+
+	c.conn = conn
+	return nil
+}
+
 func WithDialOption(opt grpc.DialOption) ClientOption {
 	return func(options *ClientOptions) {
 		options.DialOptions = append(options.DialOptions, opt)
@@ -55,36 +111,3 @@ func WithTimeout(timeout time.Duration) ClientOption {
 		options.Timeout = timeout
 	}
 }
-
-func buildDialOptions(opts ...ClientOption) []grpc.DialOption {
-	var clientOptions ClientOptions
-	for _, opt := range opts {
-		opt(&clientOptions)
-	}
-
-	options := []grpc.DialOption{
-		grpc.WithInsecure(),
-		grpc.WithBlock(),
-		WithUnaryClientInterceptors(
-			clientinterceptors.TracingInterceptor,
-			clientinterceptors.DurationInterceptor,
-			clientinterceptors.BreakerInterceptor,
-			clientinterceptors.PromMetricInterceptor,
-			clientinterceptors.TimeoutInterceptor(clientOptions.Timeout),
-		),
-	}
-
-	return append(options, clientOptions.DialOptions...)
-}
-
-func dial(server string, opts ...ClientOption) (*grpc.ClientConn, error) {
-	options := buildDialOptions(opts...)
-	timeCtx, cancel := context.WithTimeout(context.Background(), dialTimeout)
-	defer cancel()
-	conn, err := grpc.DialContext(timeCtx, server, options...)
-	if err != nil {
-		return nil, fmt.Errorf("rpc dial: %s, error: %s", server, err.Error())
-	}
-
-	return conn, nil
-}
--- a/zrpc/internal/client_test.go
+++ b/zrpc/internal/client_test.go
@@ -24,7 +24,8 @@ func TestWithTimeout(t *testing.T) {
 }

 func TestBuildDialOptions(t *testing.T) {
+	var c client
 	agent := grpc.WithUserAgent("chrome")
-	opts := buildDialOptions(WithDialOption(agent))
+	opts := c.buildDialOptions(WithDialOption(agent))
 	assert.Contains(t, opts, agent)
 }
--- a/zrpc/internal/clientinterceptors/prometheusinterceptor.go
+++ b/zrpc/internal/clientinterceptors/prometheusinterceptor.go
@@ -32,7 +32,7 @@ var (
 	})
 )

-func PromMetricInterceptor(ctx context.Context, method string, req, reply interface{},
+func PrometheusInterceptor(ctx context.Context, method string, req, reply interface{},
 	cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
 	startTime := timex.Now()
 	err := invoker(ctx, method, req, reply, cc, opts...)
--- a/zrpc/internal/clientinterceptors/prometheusinterceptor_test.go
+++ b/zrpc/internal/clientinterceptors/prometheusinterceptor_test.go
@@ -26,7 +26,7 @@ func TestPromMetricInterceptor(t *testing.T) {
 	for _, test := range tests {
 		t.Run(test.name, func(t *testing.T) {
 			cc := new(grpc.ClientConn)
-			err := PromMetricInterceptor(context.Background(), "/foo", nil, nil, cc,
+			err := PrometheusInterceptor(context.Background(), "/foo", nil, nil, cc,
 				func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
 					opts ...grpc.CallOption) error {
 					return test.err
--- a/zrpc/internal/rpcserver.go
+++ b/zrpc/internal/rpcserver.go
@@ -55,7 +55,7 @@ func (s *rpcServer) Start(register RegisterFn) error {
 		serverinterceptors.UnaryTracingInterceptor(s.name),
 		serverinterceptors.UnaryCrashInterceptor(),
 		serverinterceptors.UnaryStatInterceptor(s.metrics),
-		serverinterceptors.UnaryPromMetricInterceptor(),
+		serverinterceptors.UnaryPrometheusInterceptor(),
 	}
 	unaryInterceptors = append(unaryInterceptors, s.unaryInterceptors...)
 	streamInterceptors := []grpc.StreamServerInterceptor{
--- a/zrpc/internal/serverinterceptors/prometheusinterceptor.go
+++ b/zrpc/internal/serverinterceptors/prometheusinterceptor.go
@@ -32,7 +32,7 @@ var (
 	})
 )

-func UnaryPromMetricInterceptor() grpc.UnaryServerInterceptor {
+func UnaryPrometheusInterceptor() grpc.UnaryServerInterceptor {
 	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (
 		interface{}, error) {
 		startTime := timex.Now()
--- a/zrpc/internal/serverinterceptors/prometheusinterceptor_test.go
+++ b/zrpc/internal/serverinterceptors/prometheusinterceptor_test.go
@@ -9,7 +9,7 @@ import (
 )

 func TestUnaryPromMetricInterceptor(t *testing.T) {
-	interceptor := UnaryPromMetricInterceptor()
+	interceptor := UnaryPrometheusInterceptor()
 	_, err := interceptor(context.Background(), nil, &grpc.UnaryServerInfo{
 		FullMethod: "/",
 	}, func(ctx context.Context, req interface{}) (interface{}, error) {
--- a/zrpc/server.go
+++ b/zrpc/server.go
@@ -13,6 +13,7 @@ import (
 	"github.com/tal-tech/go-zero/zrpc/internal"
 	"github.com/tal-tech/go-zero/zrpc/internal/auth"
 	"github.com/tal-tech/go-zero/zrpc/internal/serverinterceptors"
+	"google.golang.org/grpc"
 )

 const envPodIp = "POD_IP"
@@ -65,6 +66,18 @@ func NewServer(c RpcServerConf, register internal.RegisterFn) (*RpcServer, error
 	return rpcServer, nil
 }

+func (rs *RpcServer) AddOptions(options ...grpc.ServerOption) {
+	rs.server.AddOptions(options...)
+}
+
+func (rs *RpcServer) AddStreamInterceptors(interceptors ...grpc.StreamServerInterceptor) {
+	rs.server.AddStreamInterceptors(interceptors...)
+}
+
+func (rs *RpcServer) AddUnaryInterceptors(interceptors ...grpc.UnaryServerInterceptor) {
+	rs.server.AddUnaryInterceptors(interceptors...)
+}
+
 func (rs *RpcServer) Start() {
 	if err := rs.server.Start(rs.register); err != nil {
 		logx.Error(err)
Author	SHA1	Message	Date
kevin	93f430a449	update shorturl doc	2020-09-29 17:36:00 +08:00
kevin	d1b303fe7e	export cache package, add client interceptor customization	2020-09-29 17:25:49 +08:00
kevin	dbca20e3df	add zrpc client interceptor	2020-09-29 16:09:11 +08:00
boob	b3ead4d76c	doc: update sharedcalls.md layout (#107 )	2020-09-29 14:32:17 +08:00
kevin	33a9db85c8	add unit test, fix interceptor bug	2020-09-29 14:30:22 +08:00
kingxt	e7d46aa6e2	refactor and rename folder to group (#106 ) * rebase upstream * rebase * trim no need line * trim no need line * trim no need line * update doc * remove update * remove no need * remove no need * goctl add jwt support * goctl add jwt support * goctl add jwt support * goctl support import * goctl support import * support return () * support return () * revert * format api * refactor and rename folder to group Co-authored-by: kingxt <dream4kingxt@163.com>	2020-09-29 11:14:52 +08:00
kevin	b282304054	add api doc link	2020-09-28 16:58:29 +08:00
bittoy	0a36031d48	use default mongo db (#103 )	2020-09-28 16:35:07 +08:00
kevin	e5d7c3ab04	unmarshal should be struct	2020-09-28 15:19:30 +08:00
kevin	12c08bfd39	Revert "goreportcard not working, remove it temporarily" This reverts commit `8f465fa439`.	2020-09-28 11:41:23 +08:00
kevin	8f465fa439	goreportcard not working, remove it temporarily	2020-09-28 00:31:24 +08:00
kingxt	8a470bb6ee	support return () syntax (#101 ) * rebase upstream * rebase * trim no need line * trim no need line * trim no need line * update doc * remove update * remove no need * remove no need * goctl add jwt support * goctl add jwt support * goctl add jwt support * goctl support import * goctl support import * support return () * support return () * remove pwd for windows not support * revert * remove no need Co-authored-by: kingxt <dream4kingxt@163.com>	2020-09-27 17:23:15 +08:00
kevin	9277ad77f7	fix typo of prometheus	2020-09-27 17:15:15 +08:00
kevin	a958400595	rename prommetric to prometheous, add unit tests	2020-09-27 16:14:16 +08:00
kevin	015716d1b5	update wechat and etcd yaml	2020-09-27 14:15:33 +08:00
kevin	54e9d01312	update example	2020-09-27 11:10:21 +08:00
kevin	bc831b75dd	export AddOptions, AddStreamInterceptors, AddUnaryInterceptors	2020-09-26 22:05:57 +08:00
kevin	ff112fdaee	query from cache first when do cache.Take	2020-09-26 21:58:46 +08:00
kingxt	8d0f7dbb27	rename (#98 ) * rebase upstream * rebase * trim no need line * trim no need line * trim no need line * update doc * remove update * remove no need * remove no need * goctl add jwt support * goctl add jwt support * goctl add jwt support * goctl support import * goctl support import * rename Co-authored-by: kingxt <dream4kingxt@163.com>	2020-09-24 10:31:49 +08:00
Keson	a5ce2c448e	fix bug: module parse error (#97 )	2020-09-23 22:10:25 +08:00
kevin	0dd8e27557	add more clear error when rpc service is not started	2020-09-23 22:07:26 +08:00