Hi Friends ,

I have to Integrate Salesforce to External Services 

Throwing the Error Is "Internal Server Error",Status Code :500 " Htttpresponse

External Services Has asking the JSON Format  in this Place Creating the XML Format How To resolve this Could Please Help me.



global class ResponseclsforFIC{
@future(callout=true)
    public static void Responsefrom3rdparty(string syncid){
    try{
      String endPointURL = 'https://cacf-test.crm.us2.oraclecloud.com/crmCommonApi/resources/latest/accounts';
      String userName = 'kullayappa.adapala@config-consultants.com';
      String password = 'Kull@i12345';
      
      // Specify the required user name and password to access the endpoint 
      // As well as the header and header information 
      Blob headerValue = Blob.valueOf(userName + ':' + password);
      String authorizationHeader = 'BASIC ' +EncodingUtil.base64Encode(headerValue);

        DOM.Document resDoc = new DOM.Document();        
            // Send the request
        HttpRequest req = new HttpRequest();   
     //   req.setTimeout(120000);         
        req.setMethod('POST'); 
        req.setEndpoint(endPointURL);
        req.setHeader('Authorization', authorizationHeader);
        sfdcFICxmlcreator genrate = new sfdcFICxmlcreator();
        String xml = genrate.xmlgenrate(syncid);
        req.setHeader('content-type', 'application/vnd.oracle.adf.resourceitem+json; charset=utf-8');
        req.setBody(xml);
        
         System.Debug('......... Body ...........'+xml);
        Http http = new Http();
          
       Transient HttpResponse res = new HttpResponse();
        res = http.send(req); 
          //HttpResponse res = http.send(request);  
           res = http.send(req); 
        system.debug('res.......'+res.getbody());
        Contact sfintegrate = new Contact();
       
        sfintegrate.Accountid=syncid;
        sfintegrate.LastName='ramgopalvarma';
        sfintegrate.Request_Status__c=res.getStatus();
         sfintegrate.Status_Code__c=string.valueof(res.getStatusCode());
         
         system.debug('>>>>>>>>>>>'+syncid);
         system.debug('????????????'+string.valueof(res.getStatusCode()));
         if(sfintegrate.Status_Code__c!='200'){
         sfintegrate.FIC_response__c=res.getbody();
         }
         sfintegrate.Execution_time__c=string.valueof(System.now());
         sfintegrate.Request_Body__c=xml;
         insert sfintegrate ;
      }catch(Exception e){
      System.debug('Error::'+e.getMessage());
    }
  }
 }


Thanks
kullayappa