Parse request with JSON.parse

Question

I try to parse a request with node.js, So I build the next:

 app.get('/download', function(req, res){
      var parseJson = JSON.parse(req);
      var file = parseJson.fileName;
      res.download(file); // Set disposition and send it.
    });

And I send a request with the Advanced Rest Client:

URL: http://localhost:5000/download

Method: GET

Raw arguments: fileInfo: "C://1//239698_n.jpg"

and it gives me the next error:

SyntaxError: Unexpected token o
    at Object.parse (native)
    at port (c:\Node\nodejs\express.js:13:24)
    at callbacks (c:\Node\nodejs\node_modules\express\lib\router\index.js:164:37)
    at param (c:\Node\nodejs\node_modules\express\lib\router\index.js:138:11)
    at pass (c:\Node\nodejs\node_modules\express\lib\router\index.js:145:5)
    at Router._dispatch (c:\Node\nodejs\node_modules\express\lib\router\index.js:173:5)
    at Object.router (c:\Node\nodejs\node_modules\express\lib\router\index.js:33:10)

What can be the reson?

have you tried logging request and confirming it is valid JSON? — thescientist
– thescientist, Commented Apr 22, 2014 at 13:36
If you're using express, you can probably just skip the JSON.parse step. I don't think the data you want is in req, but rather req.query — Explosion Pills
– Explosion Pills, Commented Apr 22, 2014 at 13:43
That's probably a better answer than mine below, if Express provides a direct way to get at your data then that should be the preferred way to do it — Jason
– Jason, Commented Apr 22, 2014 at 14:49

Jason · Accepted Answer · 2014-04-22 13:41:47Z

1

You're not sending JSON. You're sending querystring formatted arguments. You'll want to use querystring.parse() or node-querystring or, shameless plug alert, my module that is format agnostic, objectifier.

answered Apr 22, 2014 at 13:41

Jason

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