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All search endpoints accept ?format=json|markdown|text|ndjson (default: json). Accept header negotiation also works (text/markdown, text/plain, application/x-ndjson). Non-JSON formats skip the response cache to avoid polluting the JSON cache key. Markdown output is optimised for n8n Slack/email nodes; text output reduces token count ~25-30% vs JSON for LLM grounding pipelines; NDJSON emits one result per line.
78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
package core
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import (
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"encoding/json"
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"fmt"
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"strings"
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)
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// RenderText formats an Envelope as a minimal plain-text block optimised for
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// LLM context windows (~25-30% fewer tokens than JSON for the same data).
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func RenderText(env *Envelope) []byte {
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var b strings.Builder
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fmt.Fprintf(&b, "Search: %s\n", env.Query.Text)
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enginesStr := strings.Join(env.Meta.EnginesResponded, ", ")
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if enginesStr != "" {
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fmt.Fprintf(&b, "Engines: %s\n", enginesStr)
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}
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if len(env.Meta.EnginesFailed) > 0 {
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fmt.Fprintf(&b, "Failed: %s\n", strings.Join(env.Meta.EnginesFailed, ", "))
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}
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b.WriteString("\n")
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for i, r := range env.Results {
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fmt.Fprintf(&b, "[%d] %s (%s)\n", i+1, r.Title, r.Domain)
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if r.Snippet != "" {
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fmt.Fprintf(&b, "%s\n", r.Snippet)
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}
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fmt.Fprintf(&b, "URL: %s\n\n", r.URL)
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}
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return []byte(b.String())
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}
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// RenderTextImage formats an ImageEnvelope as plain text.
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func RenderTextImage(env *ImageEnvelope) []byte {
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var b strings.Builder
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fmt.Fprintf(&b, "Image search: %s\n\n", env.Query.Text)
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for i, r := range env.Results {
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fmt.Fprintf(&b, "[%d] %s (%s)\n", i+1, r.Title, r.Source.Domain)
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fmt.Fprintf(&b, "Image: %s\n", r.Image.URL)
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fmt.Fprintf(&b, "Page: %s\n\n", r.Source.PageURL)
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}
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return []byte(b.String())
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}
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// RenderNDJSON formats an Envelope as newline-delimited JSON (one Result per line).
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// The envelope meta is omitted from the body; clients should read response headers.
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func RenderNDJSON(env *Envelope) []byte {
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var b strings.Builder
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for _, r := range env.Results {
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data, err := json.Marshal(r)
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if err != nil {
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continue
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}
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b.Write(data)
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b.WriteByte('\n')
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}
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return []byte(b.String())
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}
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// RenderNDJSONImage formats an ImageEnvelope as newline-delimited JSON.
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func RenderNDJSONImage(env *ImageEnvelope) []byte {
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var b strings.Builder
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for _, r := range env.Results {
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data, err := json.Marshal(r)
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if err != nil {
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continue
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}
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b.Write(data)
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b.WriteByte('\n')
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}
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return []byte(b.String())
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}
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