Update Error handling

[FSM1]

Update API error handling code in mkdir and upload calls

New Error response will have the following schema:

{
  "error": {
    "message": "Validation failed", 
    "code": 400,
    "details": [{"type:email", "message":"invalid email address"}]
  }
}

So, the equivalent check will be errorResponse.error.details[0].message.includes(... .
Would suggest to check the http response code instead of checking error message. I mean check whether it is 409 code, and if it is Show your custom message on ui.

Also the details field is optional. In all that cases if details is not there that case you need need to check errorResponse.error.message.includes(... . Response will be something like that

{
  "error": {
    "message": "Validation failed", 
    "code": 400,
  }
}

Originally posted by @sadiq1971 in https://github.com/ChainSafe/files-api/issues/1591#issuecomment-936560977