path: root/rpc/json.go

/*
    This file is part of go-ethereum

    go-ethereum is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    go-ethereum is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with go-ethereum.  If not, see <http://www.gnu.org/licenses/>.
*/
package rpc

import (
    "encoding/json"
    "github.com/ethereum/go-ethereum/logger"
    "io"
    "net/http"
)

var rpclogger = logger.NewLogger("RPC")

type JsonWrapper struct{}

func (self JsonWrapper) Send(writer io.Writer, v interface{}) (n int, err error) {
    var payload []byte
    payload, err = json.Marshal(v)
    if err != nil {
        rpclogger.Fatalln("Error marshalling JSON", err)
        return 0, err
    }
    rpclogger.Infof("Sending payload: %s", payload)

    return writer.Write(payload)
}

func (self JsonWrapper) ParseRequestBody(req *http.Request) (RpcRequest, error) {
    var reqParsed RpcRequest

    // Convert JSON to native types
    d := json.NewDecoder(req.Body)
    // d.UseNumber()
    defer req.Body.Close()
    err := d.Decode(&reqParsed)

    if err != nil {
        rpclogger.Errorln("Error decoding JSON: ", err)
        return reqParsed, err
    }
    rpclogger.DebugDetailf("Parsed request: %s", reqParsed)

    return reqParsed, nil
}