Interface HttpBodyValidator<T>

Example

interface UserLoginJsonSchema extends RequestInputSchema {
  readonly username: string;
  readonly password: string;
}

// a simple object to validate the username and password of a login endpoint.
class UserLoginHttpBodyValidator implements HttpBodyValidator<UserLoginJsonSchema> {

  isValid(body: UserLoginJsonSchema): boolean {
    const usernameRegex = /^[a-zA-Z0-9]{5,12}$/;
    const passwordRegex = /^[a-zA-Z0-9@_.*&$!()-]{8,20}$/;
    return this.isString(body.username) && usernameRegex.test(body.username)
        && this.isString(body.password) && passwordRegex.test(body.password);
  }

  isString(str: unknown): boolean {
    return typeof str === 'string';
  }
}
Copy