feat(client): support optional json html escaping

Author: stainless-app[bot]

internal/encoding/json/encode.go

@@ -177,7 +177,11 @@ func Marshal(v any) ([]byte, error) {
 	e := newEncodeState()
 	defer encodeStatePool.Put(e)
 
-	err := e.marshal(v, encOpts{escapeHTML: true})
+	// SHIM(begin): don't escape HTML by default
+	err := e.marshal(v, encOpts{escapeHTML: shims.EscapeHTMLByDefault})
+	// ORIGINAL:
+	//  err := e.marshal(v, encOpts{escapeHTML: true})
+	// SHIM(end)
 	if err != nil {
 		return nil, err
 	}

internal/encoding/json/shims/shims.go

@@ -11,6 +11,8 @@ import (
 	"slices"
 )
 
+const EscapeHTMLByDefault = true
+
 type OverflowableType struct{ reflect.Type }
 
 func (t OverflowableType) OverflowInt(x int64) bool {

internal/requestconfig/requestconfig.go

@@ -137,11 +137,13 @@ func NewRequestConfig(ctx context.Context, method string, u string, body any, ds
 	// Fallback to json serialization if none of the serialization functions that we expect
 	// to see is present.
 	if body != nil && !hasSerializationFunc {
-		content, err := json.Marshal(body)
-		if err != nil {
+		buf := new(bytes.Buffer)
+		enc := json.NewEncoder(buf)
+		enc.SetEscapeHTML(true)
+		if err := enc.Encode(body); err != nil {
 			return nil, err
 		}
-		reader = bytes.NewBuffer(content)
+		reader = buf
 	}
 
 	req, err := http.NewRequestWithContext(ctx, method, u, nil)

packages/param/option.go

@@ -62,7 +62,7 @@ func (o Opt[T]) MarshalJSON() ([]byte, error) {
 	if !o.Valid() {
 		return []byte("null"), nil
 	}
-	return json.Marshal(o.Value)
+	return shimjson.Marshal(o.Value)
 }
 
 func (o *Opt[T]) UnmarshalJSON(data []byte) error {
@@ -96,7 +96,7 @@ func (o Opt[T]) MarshalJSONWithTimeLayout(format string) []byte {
 		return nil
 	}
 
-	b, err := json.Marshal(t.Format(shimjson.TimeLayout(format)))
+	b, err := shimjson.Marshal(t.Format(shimjson.TimeLayout(format)))
 	if err != nil {
 		return nil
 	}

shared/constant/constants.go

@@ -3,7 +3,7 @@
 package constant
 
 import (
-	"encoding/json"
+	shimjson "github.com/openai/openai-go/internal/encoding/json"
 )
 
 type Constant[T any] interface {
@@ -730,5 +730,5 @@ func marshalString[T ~string, PT constant[T]](v T) ([]byte, error) {
 	if v == zero {
 		v = PT(&v).Default()
 	}
-	return json.Marshal(string(v))
+	return shimjson.Marshal(string(v))
 }