add config

config/encoder/toml/toml.go

@@ -0,0 +1,32 @@
+package toml
+
+import (
+	"bytes"
+
+	"github.com/BurntSushi/toml"
+	"github.com/micro/go-micro/config/encoder"
+)
+
+type tomlEncoder struct{}
+
+func (t tomlEncoder) Encode(v interface{}) ([]byte, error) {
+	b := bytes.NewBuffer(nil)
+	defer b.Reset()
+	err := toml.NewEncoder(b).Encode(v)
+	if err != nil {
+		return nil, err
+	}
+	return b.Bytes(), nil
+}
+
+func (t tomlEncoder) Decode(d []byte, v interface{}) error {
+	return toml.Unmarshal(d, v)
+}
+
+func (t tomlEncoder) String() string {
+	return "toml"
+}
+
+func NewEncoder() encoder.Encoder {
+	return tomlEncoder{}
+}