Prep for TinyGo's v0.28 encoding/json Support

extism_pdk.go

@@ -2,9 +2,9 @@ package pdk
 
 import (
 	"encoding/binary"
+	"encoding/json"
+	"github.com/extism/go-pdk/internal/models"
 	"strings"
-
-	"github.com/valyala/fastjson"
 )
 
 /*
@@ -233,21 +233,13 @@ func (r *HTTPRequest) SetBody(body []byte) *HTTPRequest {
 }
 
 func (r *HTTPRequest) Send() HTTPResponse {
-	arena := &fastjson.Arena{}
-	json := arena.NewObject()
-	headers := arena.NewObject()
-	if r.header != nil {
-		for k, v := range r.header {
-			headers.Set(k, arena.NewString(v))
-		}
-
-		json.Set("header", headers)
+	meta := models.MetaData{
+		Url:     r.url,
+		Method:  r.method,
+		Headers: r.header,
 	}
-	json.Set("url", arena.NewString(r.url))
-	json.Set("method", arena.NewString(r.method))
 
-	var buf []byte
-	enc := json.MarshalTo(buf)
+	enc, _ := json.Marshal(meta)
 
 	req := AllocateBytes(enc)
 	defer req.Free()

go.mod

@@ -1,5 +1,3 @@
 module github.com/extism/go-pdk
 
 go 1.19
-
-require github.com/valyala/fastjson v1.6.3

go.sum

@@ -1,2 +0,0 @@
-github.com/valyala/fastjson v1.6.3 h1:tAKFnnwmeMGPbwJ7IwxcTPCNr3uIzoIj3/Fh90ra4xc=
-github.com/valyala/fastjson v1.6.3/go.mod h1:CLCAqky6SMuOcxStkYQvblddUtoRxhYMGLrsQns1aXY=

internal/models/req_meta_data.go

@@ -0,0 +1,7 @@
+package models
+
+type MetaData struct {
+	Url     string            `json:"url"`
+	Method  string            `json:"method"`
+	Headers map[string]string `json:"header"`
+}