AddErrorMessage add or replace error message mapping to bag from given key value.

Error return echo framework json response with standard error response as the structure.

ErrorCode return echo framework json response with standard error response as the structure and use given code as response status code.

NewStd init new Std by given code and message as the value.

NewStdErr init new Std by given code and err Error as the value.

NewValidationErrors return ready to display error validations.

Success return json response with standard success response as the structure.

WithData option to add the given data to success response as `data` field.

WithErr option to add given detail to error response as `error` field.

WithPaginate option to add the given paginate to success response as `pagination` field.

App standard success response that may be used in every response for all handlers.

Std error implementer that may be used when need to throw just code and message as response inside `error` field.

AppOpt an option signature for App response.