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/ answers: 1 / hits: 24274
/ 8 Years ago, thu, july 7, 2016, 12:00:00
A Node.js/Express.js app makes a RESTful call to another app and receives JSON in response. But the JSON response is not being parsed into new variables. What specific changes need to be made to the code below, so that the JSON body can be successfully parsed into new variables that the receiving Node.js/Express.js app can use for further processing?
Here is the Node.js/Express.js code which is currently receiving the JSON body response:
var url = require('url');
var request = require('request');
app.get('/user**', function(req, res) {
console.log(You Hit The User Route TOP);
request.get(authServer + '/uaa/user', function (error, response, body) {
if(error){console.log('ERROR with user request.')}
if (!error){// && response.statusCode == 200) {
console.log(response.statusCode); console.log(body);
response.on('data', function(chunk){
console.log('inside response.on(data...)');
body += chunk;
});
response.on('end', function(){
console.log('inside response.on(end...)');
body = JSON.parse(body);
var text = '';
for (var key in body){
text += 'Index is: ' + key +
'nDescription is: ' + body[key]
}
// The Description is: descriptive string
console.log(Got a response: , text);
res.send(text);
});
res.send(body);
};
}).auth(null, null, true, bearerToken);//this inserts bearer token in the GET request
console.log(You Hit The User Route BOTTOM);
});
Here are the nodemon logs for the GET shown in the code. Note that the response.on() blocks are never called because their SYSO never prints:
You Hit The User Route TOP
You Hit The User Route BOTTOM
200
{ long JSON string, which is formatted and truncated below for easier reading }
GET /user 200 182.862 ms - 1296
And here is the formatted and truncated JSON body, which illustrates the format of the data that needs to be parsed into Node.js/Express.js JavaScript variables:
{
details:
{
remoteAddress:127.0.0.1,
sessionId:null,
tokenValue:SomeLongTokenString,
tokenType:Bearer,
decodedDetails:null
},
authenticated:true,
userAuthentication:
{
details:null,
authorities:
[
{
authority:ROLE_ADMIN
},
{
authority:ROLE_USER
}
],
authenticated:true,
principal:user,
credentials:N/A,
name:user
},
name:user
}
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