Rename proxy to server for clarity

server/helpers.go

@@ -0,0 +1,58 @@
+/*
+package server provides http handlers to construct a server server
+for key management, transaction signing, and query validation.
+
+Please read the README and godoc to see how to
+configure the server for your application.
+*/
+package server
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"net/http"
+
+	data "github.com/tendermint/go-data"
+	"github.com/tendermint/go-keys/server/types"
+
+	"github.com/pkg/errors"
+)
+
+func readRequest(r *http.Request, o interface{}) error {
+	defer r.Body.Close()
+	data, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return errors.Wrap(err, "Read Request")
+	}
+	err = json.Unmarshal(data, o)
+	if err != nil {
+		return errors.Wrap(err, "Parse")
+	}
+	return validate(o)
+}
+
+// most errors are bad input, so 406... do better....
+func writeError(w http.ResponseWriter, err error) {
+	// fmt.Printf("Error: %+v\n", err)
+	res := types.ErrorResponse{
+		Code:  406,
+		Error: err.Error(),
+	}
+	writeCode(w, &res, 406)
+}
+
+func writeCode(w http.ResponseWriter, o interface{}, code int) {
+	// two space indent to make it easier to read
+	data, err := data.ToJSON(o)
+	if err != nil {
+		writeError(w, err)
+	} else {
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(code)
+		w.Write(data)
+	}
+}
+
+func writeSuccess(w http.ResponseWriter, o interface{}) {
+	writeCode(w, o, 200)
+}