POST request through a JSON object - json

Question

I have created a server which serves the post request for a client. I am using the bodyserver, but getting some error
var bodyParser = require('body-parser')
var express = require('express');
var app = express();
app.use(bodyParser.json());
app.post('/v3/botstate/:channel/users/:userid', function (req, res) {
console.log("hsijdaf");
console.log(req.body);
//console.log(req.body);
// res.send('Hello POST');
})
var server = app.listen(8081, function () {
var host = server.address().address
var port = server.address().port
console.log("Example app listening at http://%s:%s", host, port)
})
A client is as shown below,
var request = require('request');
request.post({
url: "http://localhost:8081/v3/botstate/webchat/users/siddiq",
headers: {
"Content-Type": "application/json"
},
body: '{"jsonrpc":"2.0","id":"zdoLXrB5IkwQzwV2wBoj","method":"barrister-idl","params":[]}',
json:true
}, function(error, response, body){
console.log(error);
console.log(JSON.stringify(response));
console.log(body);
});
while running the client getting the below error,
E:\TESTING>node exp.js
Example app listening at http://:::8081
SyntaxError: Unexpected token "
at parse (E:\TESTING\node_modules\body-parser\lib\types\json.js:83:15)
at E:\TESTING\node_modules\body-parser\lib\read.js:116:18
at invokeCallback (E:\TESTING\node_modules\body-parser\node_modules\raw-body\index.js:262:16)
at done (E:\TESTING\node_modules\body-parser\node_modules\raw-body\index.js:251:7)
at IncomingMessage.onEnd (E:\TESTING\node_modules\body-parser\node_modules\raw-body\index.js:307:7)
at emitNone (events.js:67:13)
at IncomingMessage.emit (events.js:166:7)
at endReadableNT (_stream_readable.js:921:12)
at nextTickCallbackWith2Args (node.js:442:9)
at process._tickCallback (node.js:356:17)
please help me in resolving the issue.

Answer 1

You have set Content-Type : application/json in your client, but your POST data is text/plain, not json. That's why body-parser is failing to parse it as it was expecting json through header.
Try after removing ' ' from body in your client.
e.g.
var request = require('request');
request.post({
url: "http://localhost:8081/v3/botstate/webchat/users/siddiq",
headers: {
"Content-Type": "application/json"
},
body: {
"jsonrpc":"2.0",
"id":"zdoLXrB5IkwQzwV2wBoj",
"method":"barrister-idl",
"params":[]
},
json:true
}, function(error, response, body){
console.log(error);
console.log(JSON.stringify(response));
console.log(body);
});
Hope it helps you.