Want to get bearer token to connect to API

[cloudv]

Hi i want to get bearer token by providing client id and client secret to then connect the third party API.

In postman i can provide end point, client_id and client_secret(in headers) and get the following

{

    "access_token": "XXXXX",

    "scope": "XXXX",

    "token_type": "Bearer",

    "expires_in": 2500

}

I want to replicate the same via a script include or any script  in the servicenow, so far i tried this to test in background script

    var request = new sn_ws.RESTMessageV2();

        request.setEndpoint("https://openapi.service.TEST.net/v1/token");

        request.setHttpMethod("GET");

        request.setQueryParameter("Content-Type", "application/json");

        request.setRequestHeader("client_id","XXXX");

        request.setRequestHeader("client_secret","XXXX");

        var response = request.execute();

        gs.print(response.getBody());

But the response i get is 

"requested resource not found"

[sadif_raja]

Apologies for the misunderstanding! Here’s the response written in a reply form:

---

Hi,

The issue seems to be with how you're making the request to obtain the bearer token. There are a few things that need adjustment:

### 1. **HTTP Method**:
The API you're connecting to likely requires a **POST** request, not a **GET** request, for token generation. Typically, OAuth 2.0 token requests are made using **POST**.

### 2. **Parameters in the Body**:
Instead of sending the `client_id` and `client_secret` in the headers, you should include them in the **request body** as form parameters. You should also pass the `grant_type` parameter, which for this type of request is usually set to `client_credentials`.

### 3. **Content-Type Header**:
The `Content-Type` should be set as a **header**, not a query parameter, and it should be `application/x-www-form-urlencoded` since this is the standard for OAuth token requests.

### Here's a corrected version of your script:

```javascript
var request = new sn_ws.RESTMessageV2();
request.setEndpoint("https://openapi.service.TEST.net/v1/token");
request.setHttpMethod("POST");

// Set the appropriate content type for form data
request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

// Pass the client_id, client_secret, and grant_type in the request body
request.setRequestBody("client_id=XXXX&client_secret=XXXX&grant_type=client_credentials");

try {
var response = request.execute();
var responseBody = response.getBody();
var httpStatus = response.getStatusCode();

gs.print("HTTP Status: " + httpStatus);
gs.print("Response Body: " + responseBody);

} catch (ex) {
var message = ex.getMessage();
gs.print("Error: " + message);
}
```

### Changes:
- Changed the method from **GET** to **POST**.
- Moved `client_id` and `client_secret` to the **request body** and included `grant_type=client_credentials`.
- Set the **Content-Type** header correctly.

Once you run this script, it should return the token as expected. Let me know if you need any further assistance!

Best regards,
Raja