chore: adds support for json unmarshaler in tinygo.

bodyprocessors/json.go

@@ -15,7 +15,6 @@
 package bodyprocessors
 
 import (
-	"encoding/json"
 	"fmt"
 	"io"
 	"strconv"
@@ -85,7 +84,7 @@ func jsonToMap(data []byte) (map[string]string, error) {
 		m      map[string]string
 		err    error
 	)
-	if err = json.Unmarshal(data, &result); err != nil {
+	if result, err = jsonUnmarshal(data); err != nil {
 		return nil, err
 	}
 

bodyprocessors/json_unmarshaler.go

@@ -0,0 +1,29 @@
+//go:build !tinygo
+// +build !tinygo
+
+// Copyright 2022 Juan Pablo Tosso
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package bodyprocessors
+
+import "encoding/json"
+
+func jsonUnmarshal(data []byte) (interface{}, error) {
+	var result interface{}
+	if err := json.Unmarshal(data, &result); err != nil {
+		return nil, err
+	}
+
+	return result, nil
+}

bodyprocessors/json_unmarshaler_tinygo.go

@@ -0,0 +1,26 @@
+//go:build tinygo
+// +build tinygo
+
+// Copyright 2022 Juan Pablo Tosso
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package bodyprocessors
+
+import (
+	"github.com/tidwall/gjson"
+)
+
+func jsonUnmarshal(data []byte) (interface{}, error) {
+	return gjson.Parse(string(data)).Value(), nil
+}

go.mod

@@ -11,6 +11,7 @@ require (
 )
 
 require (
+	github.com/tidwall/gjson v1.14.1
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/multierr v1.8.0 // indirect
 )

go.sum

@@ -20,6 +20,12 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/tidwall/gjson v1.14.1 h1:iymTbGkQBhveq21bEvAQ81I0LEBork8BFe1CUZXdyuo=
+github.com/tidwall/gjson v1.14.1/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
+github.com/tidwall/match v1.1.1 h1:+Ho715JplO36QYgwN9PGYNhgZvoUSc9X2c80KVTi+GA=
+github.com/tidwall/match v1.1.1/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
+github.com/tidwall/pretty v1.2.0 h1:RWIZEg2iJ8/g6fDDYzMpobmaoGh5OLl4AXtGUGPcqCs=
+github.com/tidwall/pretty v1.2.0/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=