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iosjsonsalesforceapex-code

obtaining the JSON body of a Http request in Salesforce

I am creating an iOS app with salesforce integration. The iOS app will send JSON data to salesforce in the body of an http request. How do I obtain the body as a JSON string in apex?

Thanks

Solution

  • Something like this (if you were making the callout from within Apex, otherwise use a webservice to capture the incoming call and parse in a similar way).

    Prepare your HTTP request object:

    // Prepare HTTP 
HTTPResponse hTTPRes;
HTTPRequest req = new HttpRequest();
req.setTimeout(120000);

    Set your endpoint:

    req.setEndpoint(baseURL + callName + '?' + parameterString);

    Make callout:

    HTTP http = new HTTP();
String body;
hTTPRes = http.send(req);
body = hTTPRes.getBody();

    Invoke JSON parser and parse your results:

    // Invoke JSON parser 
JSONParser parser = System.JSON.createParser(body);

// Parse JSON response to get individual field values.
while(parser.nextToken() != null)
{
   if((parser.getCurrentToken() == JSONToken.FIELD_NAME) && (parser.getText() == 'yourfield')) 
      // store values as you walk the JSON
}