Open Bank solution - different error response format

[#1]

Hi Team,

We are using open bank solution for one of our PoC. While doing some testing I found that different errors are using different formats.

For Example:

1. In Oauth proxy error response is in following format:

{
	"ErrorCode" : "invalid_request", 
	"Error" :"Invalid Authorization Code"
}

2. In Accounts Service for invalid token the format is:

{
	"status": "error",
	"message": "Invalid Access Token"
}

3. In Account service only for some other error the error format is:

{
	"error": "Unauthorized Transaction",
	"description": "Access Token does not contain an Account Number reference"
}

Just wanted to understand if there was any specific reason for doing so because if a developer wants to extract exact error message apart from reason phrase and status code then its difficult due to inconsistency of error formats across APIs. @sudharshan@apigee.com