tREST with POST method in JSON format throwing error.

Hello Everyone,
I am new to Talend and web services. I need your help on this.
the version of Talend that I have is Talend Open Studio for Big Data(Version: 6.1.0).
I am trying to connect to an external web service to fetch data. I have used tREST component for the workflow.
Method is : POST
HTTP Headers: 'Content-Type', 'application/json'
                          'Accept', 'application/json'
                    'Transfer-Encoding', 'chunked'
HTTP Body : {
  "authDetails": {
    "memberId": "mid",
    "userId": "uid",
    "sessionKey": "sKey",
    "role": "Pittch"
  "resId": "201503271601FLYWALL_USEQUITY_424",
  "showChain": true,
  "getWirename": false,
  "getPhotoInfo": false

When I check the code it is giving me the following error message.
Error code:
Exception in thread "main" java.lang.Error: Unresolved compilation problem:
                Invalid character constant
                 at big_data.trest_0_1.tREST.tREST_1Process(
                at big_data.trest_0_1.tREST.runJobInTOS(
                at big_data.trest_0_1.tREST.main(

The code block that is throwing the error is
com.sun.jersey.api.client.ClientResponse errorResponse_tREST_1 = null;
       String restResponse_tREST_1 = "";
             restResponse_tREST_1 = restResource_tREST_1
                     .post(String.class,{    "authDetails":     {      "memberId": "mid",      "userId": "uid",      "sessionKey": "sKey",      "role": "Pittch"    },    "resId": "201503271601FLYWALL_USEQUITY_424",    "showChain": true,    "getWirename": false,    "getPhotoInfo": false  });
       }catch (com.sun.jersey.api.client.UniformInterfaceException ue) {
        errorResponse_tREST_1 = ue.getResponse();
Can someone please help me in getting this resolved.
Thanks for your help in advance.

Re: tREST with POST method in JSON format throwing error.

Have you already tried to use tRestClient component to post a request with your json format to see if it works?
Best regards
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Re: tREST with POST method in JSON format throwing error.

I am new for talend, i am also facing same issue, not able to achive this even with tRESTclient
could any one please let me know with example