Error handling
error messages
createPoll method
handleValidationError
messages.properties file
model_name
new message
error responses
details
ErrorDetail class
GitHub
QuickPoll
ResourceNotFoundException error
RestExceptionHandler class
Spring MVC components
Twilio
getPoll implementation
HTTP methods
input field validation
Bean Validation API
custom error response
updated ErrorDetail class
error key
error message
handleValidationError method
JSR 303/349
missing question, error code
options
poll class annotation
PollController, @Valid annotations
poll creation, missing question
QuickPoll error response
RestExceptionHandler
updated ErrorDetail class
ValidationError class
validation error format
nonexistent poll
ResourceNotFoundException
RestExceptionHandler
Updated PollController