Script to use for REST API Call from one instance to another when using OAuth 2.0

[quiksilver]

Hi All,

I have a working script shown below that connects one service now instance from another via REST API.  It is running okay with using basic authentication, but when I try to use OAuth 2.0, that is where the issue is.  Can anyone point out my mistake please ?

I tried using this 

 sm.setAuthenticationProfile('oauth2', '1c79c7e12f8dd8108839d5ea2799b6c3'); 

where sysid "1c79c7e12f8dd8108839d5ea2799b6c3" is pointing to this

Thanks 

** here is the code I am running in background script

var requestBody;
var responseBody;
var status;
var sm;
try{
//May28REST is the name of my oubound REST message

//get_tickets is the name of http method under May28REST
sm = new sn_ws.RESTMessageV2("May28REST", "get_tickets");

sm.setBasicAuth("admin","admin");

//set auth profile to an OAuth 2.0 profile record.

// sm.setAuthenticationProfile('oauth2', '1c79c7e12f8dd8108839d5ea2799b6c3');

sm.setQueryParameter("sysparm_query","active=false^number=INCV0135986");
sm.setRequestHeader("Accept","Application/json");

response = sm.execute();
responseBody = response.haveError() ? response.getErrorMessage() : response.getBody();
status = response.getStatusCode();
} catch(ex) {
responseBody = ex.getMessage();
status = '500';
} finally {
requestBody = sm ? sm.getRequestBody():null;
}
gs.log('here here here : '+responseBody);

[Harsh Vardhan]

where are you running this script ? 

Just confirming, are you connecting this between two instance ? if yes then you have to build oauth in first instance 1 "Create an OAuth API endpoint for external clients" and then you will create another oauth in instance2 "Connect to a third party OAuth Provider"  and then you will run the above code in instance 2.

also in below line, you will provide instance 1 id and password. 

var params = {grant_type:"password", username:'uname', password:'pw'};

it will work. 

[quiksilver]

Hi 

I am running this via Background script.

Yes I am filling that line with the proper username and password.

I am connecting 2 service now instance and the instance 1 has application registry set up.  I am able to connect to instance 1 via postman.

But having trouble using the script from another service now instance

Thanks

Quik

[Harsh Vardhan]

is it possible if you can connect me over zoom or google hangout and share you screen, this way i can quickly help you. if yes drop me an email

hvrdhn88@gmail.com

[quiksilver]

It Worked.

I just had to change this line

var tokenResponse = oAuthClient.requestToken('May28', text);

where May28 is the name of the Application Registry (oauth_entity)

(I was using Application  Registry Profile before)

-- Working code from background script 

var oAuthClient = new sn_auth.GlideOAuthClient();

var params = {grant_type:"password", username:'uname', password:'pw'};

var json = new global.JSON();

var text = json.encode(params);

var tokenResponse = oAuthClient.requestToken('May28', text);

var token = tokenResponse.getToken();

gs.log("AccessToken:" + token.getAccessToken());

gs.log("AccessTokenExpiresIn:" + token.getExpiresIn());

gs.log(" RefreshToken:" + token.getRefreshToken());

[Ashutosh Munot1]

HI,

Check this out:

https://www.youtube.com/watch?v=j-r3yEDLpKc

THanks,
Ashutosh