Error management

This page explain the Nodegate behavior in case of error.

Better error management can be achieved with a callback property named onError. This callback will receive a WorkflowError argument, with the following contents:

• The error message,
• If applicable: the last response received by a request,
• The container.

In case of error, the statusCode will be set to 500.

Examples

To answer a specific body with an error that will overwrite the original error response:

gateway.route({
  method: 'get',
  path: '/gateway-route',
  workflow: [...],
  onError: (error) => {
    error.container.errorBody = {
      reason: 'An unknow error occurred.',
    };
  };
});

To define a specific error code:

gateway.route({
  method: 'get',
  path: '/gateway-route',
  workflow: [...],
  onError: (error) => {
    error.container.statusCode = 503;
  };
});