External script api-test

external.js

let testCase = process.argv[2]; // First arg will be test case key
let body = process.argv[3]; // Second arg will be body
let header = process.argv[4]; // Third arg will be header

let success = true;
switch (testCase) {
  case "get_api":
    if (success) {
      process.exit(0); // For success case
    } else {
      process.exit(1); // For failure case
    }
    break;
  case "invalid_post_api":
    ...
    break;

  default:
    break;
}