Error Handling

Whenever an exception is while handling a request, the exception is checked to see that has an httpCode, mlCode and a message. If it has all these set, we return a response with this structure.

The http status code will be the error object's httpCode attribute. The mlCode and message are serialized into a json object that has this structure.

{
    "mlCode":"4000",
    "message": "Something wrong happened"
}

The mlCode is an fspiop compliant error code that can be got from the mojaloop documentation

Every module in src/domain has it's own error class. But all of them extend a BasicError class. For more information about the errors, read through the errors section of the SDK Client and CBS Client documentation.

To return an error response to for a particular request, just throw an exception and set the message, mlCode and httpCode and the core connecotor wrapper code will handle the return of the http response.