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Topics#IntegrationRafael Santos의 질문
Rafael Santos 님이 #Integration에 질문했습니다
2017년 2월 17일 오후 1:33

How to make a integration between Salesforce and ServiceNow Using APEX - Calling Rest API from SN?

Hi,

I need make a integration between Salesforce and ServiceNow.

And I NEED do that using APEX. Because we need make a especific sync between both system.

So, here are the things I did.

For test:

- I Consume the REST API of ServiceNow with POSTMAN and JAVA (And work normally).

- I Can make a POST and a GET using POSTMAN and JAVA.

- I did the same integration using SOAP for Salesforce (Create and GET with JAVA).

- All this work normally when I tested.

Testing with Salesforce.

- After the success of the tests above, I tested consuming the ServiceNow API with APEX inside Salesforce.

- I Configurated the Remote Settings in SF.

- I Configurated the Connect Apps in SF.

Until now everything is fine, but.....

Test with APEX

- When I created the APEX code for make a POST for example, occurs a error of Authetication

- The user name and passwords is the same that I used in JAVA.

- So, I think the code APEX is correct, but I don't know what is going on.

My Company Have the Salesforce Enterprice and SeviceNow helsinc.

Here is the code that I'm using in Salesforce:

public class Authentication {

    

    //@future (callout=true)

    public static void basicAuthToken(String user, String password){

           

        try{

        

        HttpRequest request = new HttpRequest();

        

        request.setEndpoint('https://svcdev.service-now.com/api/now/table/pm_project');

        Blob auth = Blob.valueOf(user+':'+password);

        System.debug('Auth: '+ auth);

        String authorizationHeader = 'BASIC' + EncodingUtil.base64Encode(auth);

        

        request.setMethod('POST');

 

        request.setHeader('Authorization', authorizationHeader);

       

        request.setHeader('Content-Type', 'application/json;charset=UTF-8');

       

        String jsonString = '{\n\"u_customer\":\"92f53eee6f186d00a18b2d232e3ee471\",\"description\":\"Created by Salesforce APEX\"}';

        request.setBody(jsonString);

        

            Http http = new Http();

            HttpResponse res = new HttpResponse();

            res = http.send(request);

            

            System.debug('Body:'+ res.getBody());

            System.debug('Status CODE: '+res.getStatusCode());

            System.debug('Authorization in Bytes: '+authorizationHeader);

            System.debug('Data are been saved: '+jsonString);

            

        }catch(System.CalloutException e){

            System.debug('Erro: '+ e.getMessage());

        }

    }

}

here where I test in "Execute Anonymous":

Authentication.basicAuthToken('Test@test', 'Test@123') ;

here is the Response:

10:19:08.9 (9865311)|EXECUTION_STARTED

10:19:08.9 (9869411)|CODE_UNIT_STARTED|[EXTERNAL]|execute_anonymous_apex

10:19:08.9 (10287851)|SYSTEM_MODE_ENTER|false

10:19:08.9 (10634129)|USER_DEBUG|[21]|DEBUG|Auth: Blob[21]

10:19:08.9 (10881280)|CALLOUT_REQUEST|[41]|System.HttpRequest[Endpoint=https://svcdev.service-now.com/api/now/table/pm_project, Method=POST]

10:19:08.9 (862366996)|CALLOUT_RESPONSE|[41]|System.HttpResponse[Status=Unauthorized, StatusCode=401]

10:19:08.9 (862539261)|USER_DEBUG|[43]|DEBUG|Corpo :{"error":{"detail":"Required to provide Auth information","message":"User Not Authenticated"},"status":"failure"}

10:19:08.9 (862625845)|USER_DEBUG|[44]|DEBUG|Status CODE: 401

10:19:08.9 (862660661)|USER_DEBUG|[45]|DEBUG|Autorização em Bytes: BASICdXNlci5zb2FwOlNlcnZpY2VAMTIz

10:19:08.9 (862679896)|USER_DEBUG|[46]|DEBUG|Blob[21]

10:19:08.9 (862697205)|USER_DEBUG|[48]|DEBUG|Dados a serem gravados: {

"u_customer":"92f53eee6f186d00a18b2d232e3ee471","description":"Created by Salesforce APEX"}

NOTE: This code is equals of the code JAVA (Only change is the sintaxe) and in Java Works.

I must doing something wrong in APEX or I have to do some configuration in ServiceNow or Salesforce to allow the integration between the systems.

Can Anyone help me please?

Thanks

Rafael
답변 4개
  1. Amit Singh (PantherSchools)
    2017년 2월 17일 오후 2:56
    Hi Rafael,

    Believe that you API uses Basic Authentication that you wanted to consume from Salesforce using APEX. Seems that problem is with below line.

    String authorizationHeader = 'BASIC' + EncodingUtil.base64Encode(auth);

    There must be space between BASIC and Base64 encoded String replace above line with below line.

    String authorizationHeader = 'Basic ' + EncodingUtil.base64Encode(auth);

    Try the code and let me know if this helps :)

    Thanks!
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