Returning success using res.send

Question

I am using combination of Node and Angualr JS alongwith express-4

In my code I am trying to send newSourceId via res.send . I am able to get the newSourceId but when I send it using res.send it gets into error instead of getting in to success.

I also tried using res.sendStatus(newSourceId) but no luck!

Following is the Node JS part:

app.post('/addObservationDetail',function(req,res){

var newSourceId = -1;

 Observation.create({obv_source:req.body.source,obv_waveband:req.body.waveband,prpsl_id:req.body.pId}
 ).then(function(result) {

        Observation.findAll({
            attributes: [['obv_id','id']],where:{prpsl_id:req.body.pId},order: [["obv_id","DESC"]],limit: 1
            }) .then(function(rows) {
                console.log("Obv_Id is = "+rows[0].dataValues.id);
                newSourceId=rows[0].dataValues.id;
                console.log("newsrc===="+newSourceId);
                 res.send(newSourceId);
            }); 
 });
});

This is the Angular JS part:

$scope.updateObsDet = function(obs_detail,index) {
            var url = "/";
            if(obs_detail.sourceId == null){
                url += "addObservationDetail";
                $http({
                    method:'POST',
                    url:url,
                    headers:{'Content-Type':'application/x-www-form-urlencoded; charset=UTF-8'},
                    transformRequest:function(obj){
                        var str = [];
                        for(var p in obj)
                            str.push(encodeURIComponent(p) + "=" + encodeURIComponent(obj[p]));
                        return str.join("&");
                    },
                    data:{source:obs_detail.source,waveband:obs_detail.waveband,pId:$scope.proposal.proposalId}                     
                }).success(function(data){
                    alert("New observation added");       //should come in here
                    updateSourceId(data,index,obs_detail);
                }).error(function(data){
                    alert(data);         //getting in here
                });

            } else {
                url += "updateObservationDetail";
                data = {
                        source:obs_detail.source,
                        waveband:obs_detail.waveband,
                        sourceId:obs_detail.sourceId
                        };
                $http.post(url,data).success(function(data){
                    alert(data);
                }).error(function(data){
                    alert(data);
                });
            }
        };

PS: I can not change the angular Part of the code, changes need to be done in the Node JS part.

did you try to send as json. may be this will help you ?? and **Observation.findAll** this will always return some records?? — Muhammad Usman, Sep 14 '15 at 06:05
@MuhammadUsman yes, it will always be returning records, how to set the type as JSON, do we need to mention it separately, I am using `express-4` — Abhishek, Sep 14 '15 at 06:08
please see this answer to return json response http://stackoverflow.com/questions/19696240/proper-way-to-return-json-using-node-or-express — Muhammad Usman, Sep 14 '15 at 06:15
@MuhammadUsman sending it as JSON helped!! but when when we do `res.send ` isn't it supposed to be sending it as JSON by default.? — Abhishek, Sep 14 '15 at 06:26

score 1 · Accepted Answer · answered Sep 14 '15 at 06:32

1

yes you can set json response try this

var http = require('http');

var app = http.createServer(function(req,res){
    res.setHeader('Content-Type', 'application/json');
    res.send(JSON.stringify({ a: 1 }));
});
app.listen(3000);

answered Sep 14 '15 at 06:32

Muhammad Usman

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Returning success using res.send

1 Answers1