System.CalloutException: For input string: “[email protected]”

Question

I am trying to access the fluid survey API in Salesforce. I use the following code but it responds with an error.

The code for the controller class is:

public class fluidSurvey{

    public String tst{set;get;}

    public String result{get;set;}

    public PageReference chk() {

        //if (!ApexPages.hasMessages())

            result=getData();

        return null;

    }

 public String getData()

   {

       HttpRequest req= new HttpRequest();

       Http http = new Http();

       req.setMethod('GET');

       String url = 'https://username:[email protected]/api/v2/surveys/';

       req.setEndpoint(url);

       HttpResponse res = http.send(req);

       String json =  res.getBody().replace('\n','');

       tst = json;

        try {

            JSONObject j = new JSONObject( json );

            return parseJson(j);

        } catch (JSONObject.JSONException e) {

            return 'Error parsing JSON response from Google: '+e;

        }

   }

   public String parseJson(JSONObject resp){

       String detail =resp.getString('total');

       return detail;

   }

}

and the code for apex page is:

<apex:page controller="fluidSurvey">

  <!-- Begin Default Content REMOVE THIS -->

   <h1>Fluid Survey</h1>

   <apex:form >

       <apex:outputText value="{!tst}"></apex:outputText>

      <apex:commandButton value="Submit" action="{!chk}"/>

  </apex:form>

</apex:page>

but when I click the submit button it creates the following error:

System.CalloutException: For input string: "[email protected]"

Error is in expression '{!chk}' in component <apex:page> in page fluid-page

Answer 1

The authorization header needs to be explicitly set.

Try the following code:

public String getData()

{

    HttpRequest req= new HttpRequest();

    Http http = new Http();

    req.setMethod('GET');

    String authString = 'username:password';

    String url = 'https://app.fluidsurveys.com/api/v2/surveys/';

    req.setEndpoint(url);

    req.setHeader('Authorization', 'BASIC ' + EncodingUtil.base64Encode(Blob.valueOf(authString)));

    HttpResponse res = http.send(req);

    String json =  res.getBody().replace('\n','');

    try {

        JSONObject j = new JSONObject( json );

        return parseJson(j);

    } catch (JSONObject.JSONException e) {

        return 'Error parsing JSON response from Google: '+e;

    }

}

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