Invalid JSON response using CURL

Question

I have a problem with the play framework 2.1.1 (Java) telling me that I am sending Invalid JSON. There has been a similar /possibly the same issue for the play framework 2.x and 2.1.0, but it was supposed to be resolved in play framework 2.1.1 afaik: See Invalid JSON in Play Framework 2.1

This is what I am doing in the code, I have tried making it a bit shorter:

import org.codehaus.jackson.JsonFactory;
import org.codehaus.jackson.JsonNode;
import org.codehaus.jackson.JsonParser;
import play.libs.Json;
import play.mvc.BodyParser;

@BodyParser.Of(BodyParser.Json.class)
public static Result login() {
    JsonNode json = request().body().asJson();
}

When I run:

curl -v -H "Content-Type: application/json" -X POST -d '{"email":"[email protected]","password":"test"}' http://localhost:9000/mobile/login

I get the following response:

< HTTP/1.1 400 Bad Request
< Content-Type: text/html; charset=utf-8
< Content-Length: 1917
...
<p id="detail">
    For request 'POST /mobile/login' [Invalid Json]
</p>
...

I have cleaned my project and rerun it several times. When running play about I get the following output:

[info] Loading project definition from /path/to/project
[info] Set current project to FFPushAlarmPlay (in build file:/path/to)
[info] This is sbt 0.12.2
[info] The current project is {file:/path/to}...
[info] The current project is built against Scala 2.10.0
[info] Available Plugins: play.Project, sbt.PlayProject, com.typesafe.sbteclipse.plugin.EclipsePlugin, com.typesafe.sbtidea.SbtIdeaPlugin
[info] sbt, sbt plugins, and build definitions are using Scala 2.9.2

Am I doing something awfully wrong? Any help would be greatly appreciated as this is my first Play 2 project!

Update: I forgot to mention that I also have an iOS client which automagically builds the JSON using AFNetworking and I also get a Invalid JSON response there. So it doesn't seem to be invalid JSON causing this...

Answer 1

There is nothing wrong in your code. Are you using windows command line (CMD.exe) to run curl? if you are using CMD.exe to run curl, you must fix the JSON format data you want to passed. I think in Windows, using quote is a bit different from UNIX machine.

The simplest fix is to avoid using single-quotes and use double quotes to start and end JSON data, with the double-quotes in the JSON data escaped (by \ character), may be a bit tiring but it should works:

curl -v -H "Content-Type: application/json" -X POST -d "{\"email\":\"[email protected]\",\"password\":\"test\"}" http://localhost:9000/mobile/login

or, you can use cygwin or other-UNIX-like-command-line for windows as alternative command line because its behavior likely as UNIX machine.

Hope it is useful for you friend. :)