Tips for sending parameters in an HTTP request that triggers a POST payload as form-data through code

One challenge I am facing is sending an HTTP POST request that accepts the body as form-data.

grant_type: client_credentials

When using this particular API in my application, I am required to provide a client_id and client_secret parameter for this call.

Currently, my code looks like this:

   const postRequest = {
      url: 'https://address',
      method: 'POST',
      headers: {
        'authorization': 'Basic xyz',
        'content-type': 'application/x-www-form-urlencoded'
      },
     formData: {
        'grant_type': 'client_credentials'
      }
    };

I am struggling with how to include the id and secret into this request effectively. I have attempted the following:

 formData: {
     'grant_type' : 'client_credentials',
     'client_id' :'id',
    'client_secret' : 'secret'
  }

Unfortunately, this approach does not seem to work as indicated in this resource.

Answer №1

When dealing with OAuth2 flow, it is essential to include the necessary details in the Basic authorization header.

  headers: {
    'authorization': 'Basic ' + btoa(`${clientId}:${clientSecret}`),
    'content-type': 'application/x-www-form-urlencoded'
  },

To simplify the process, consider utilizing a reliable OAuth2 library to manage the complex tasks. You can check out the one I developed and shared on GitHub:

https://github.com/badgateway/oauth2-client

Here is an example of how it can be implemented:

const client = new OAuth2Client({
  tokenEndpoint: 'https://address',
  clientId: '...',
  clientSecret: '...',
});
const result = await client.clientCredentials();

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