How to make a REST API call through a MID Server?

[Smith Johnson]

Hello all,

I have the following REST API call inside my script include.

However, instead of this call, I want to configure a call to the third system through a MID server.

At first I created a new MID Server on my instance with all the needed information (name "myMID")

How can I use this MID server inside my code?

My code is the following:

var r=new sn_ws.RESTMessageV2();

//endpoint
r.setEndpoint("aURL");   //set a url endpoint (third system's endpoint)

r.setHttpMethod("post");  //HTTP method

//set the queryParameters (the first parameter is the name of the parameter that the third system is waiting for)
r.setQueryParameter("id",id);      //id is passed from catalog client script
r.setQueryParameter("t",t); //t is passed from catalog client script

var response=r.execute();    //send the REST API call
var responseBody=response.getBody();   //receive back the response


var answer=JSON.parse(responseBody);

 ...

How can send this call from the MID server??

[Ankur Bawiskar]

@Smith Johnson 

If you are using mid server then you can either use execute() or executeAsync() as both are same.

Don't use waitForResponse()

Reference: check this link &it should explain the use-case and best practices

Outbound REST Web Services RESTMessageV2 and SOAPMessageV2 execute() vs executeAsync() Best Practice...

Regards
Ankur

[Smith Johnson]

@Ankur Bawiskar 

Trying to do a test of the call, I have the following code inside scripts-background.

var t="R";
var id="E29200000555";
var r=new sn_ws.RESTMessageV2();

//endpoint
r.setEndpoint("A URL"); 
			
r.setHttpMethod("post");  //method
	
			
//Set Headers
r.setRequestHeader('Content-Type','application/json');
			
var VALUES=[];   //array of object
var inputObj={
   "t":t,
   "id":id
};

VALUES.push(inputObj);  //add the object to the array VALUES
//stringify the array before senting it to the third system
var requestBody=JSON.stringify(VALUES); 
gs.info("REQUEST BODY IS "+requestBody);
			
//set the request body with content the stringified array
r.setRequestBody(requestBody);
			
//set a MID server
r.setMIDServer("mymid");

var response=r.execute();    //send the REST API call 
responseBody=response.getBody();
gs.info("RESPONSE IS "+responseBody);

What I get back, is the following:

Does it mean that I have an error on the call or on the MID server?? The response is NULL, so I guess that I have an error, but I can not understand where. What ecc_queue0003 supposed to be?

Ankur really thank you for your patience and your diligence to help me. I appreciate it a lot.

[Ankur Bawiskar]

Hi,

search ecc_queue table with type as output and input and you can see the response

check the http status code to confirm any error

var response=r.execute();    //send the REST API call
responseBody=response.getBody();
gs.info("RESPONSE IS "+responseBody);
gs.info("HTTP Status IS"+ response.getStatusCode());

Regards
Ankur

[Smith Johnson]

@Ankur Bawiskar 

Ankur I receive: HTTP Status IS 0

If I go to Outbound HTTP log, I have the following message response to my call:

[ERROR CODE: -1 ] The request failed: org.apache.commons.httpclient.ConnectTimeoutException: The host did not accept the connection within timeout of 10000 ms when posting to ...

Any ideas how I can fix it within my code?

[Ankur Bawiskar]

@Smith Johnson 

It means some issue in connecting to the API via the mid server

Did you test the API endpoint from MID Server machine first?

Regards
Ankur