Validation And Results

Commands return CommandResult<TResponse> and perform validation before execution.

Client-Side Validation

Validation metadata is generated from backend FluentValidation rules by the proxy generator.

const command = new CreateUserCommand();
command.email = '';
command.age = 15;

const result = await command.execute();
// result.isValid === false
// result.validationResults contains validation errors

For deeper validation behavior, see Validation and Validation.

Result Shape

A command result includes status and diagnostics such as:

• Success/failure status
• Validation details
• Response payload (when present)
• Exception details

For full CommandResult details, see Command Result.

Error Categories

Typical failure categories include:

• Validation errors
• Network and timeout failures
• HTTP status failures
• Domain/application exceptions

See Also

• Command Result
• Validation
• React Commands