Decoding HTTP Status Codes with TypeScript: A Comprehensive Overview

In the realm of web development, HTTP status codes play a pivotal role in conveying the state of a web request. From the success of a GET request to the failure of a POST request, these codes provide valuable insights. With TypeScript, we can elegantly categorize and manage these status codes using Enums.

Why HTTP Status Codes Matter:

HTTP status codes are three-digit numbers returned by servers to indicate the status of a web request. They inform the client about the result of its request, whether it’s successful, requires further action, or has resulted in an error. Understanding these codes is crucial for developers to handle responses effectively and provide a seamless user experience.

Using TypeScript for HTTP Status Codes:

TypeScript offers a powerful feature called Enums, allowing us to group related values together. In the context of HTTP status codes, Enums provide a structured and readable way to manage these codes.

export enum HttpStatusCode {
  // 1xx Informational
  CONTINUE = 100,
  SWITCHING_PROTOCOLS = 101,
  PROCESSING = 102,

  // 2xx Success
  OK = 200,
  CREATED = 201,
  ACCEPTED = 202,
  NON_AUTHORITATIVE_INFORMATION = 203,
  NO_CONTENT = 204,
  RESET_CONTENT = 205,
  PARTIAL_CONTENT = 206,
  MULTI_STATUS = 207,
  ALREADY_REPORTED = 208,
  IM_USED = 226,

  // 3xx Redirection
  MULTIPLE_CHOICES = 300,
  MOVED_PERMANENTLY = 301,
  FOUND = 302,
  SEE_OTHER = 303,
  NOT_MODIFIED = 304,
  USE_PROXY = 305,
  TEMPORARY_REDIRECT = 307,
  PERMANENT_REDIRECT = 308,

  // 4xx Client errors
  BAD_REQUEST = 400,
  UNAUTHORIZED = 401,
  PAYMENT_REQUIRED = 402,
  FORBIDDEN = 403,
  NOT_FOUND = 404,
  METHOD_NOT_ALLOWED = 405,
  NOT_ACCEPTABLE = 406,
  PROXY_AUTHENTICATION_REQUIRED = 407,
  REQUEST_TIMEOUT = 408,
  CONFLICT = 409,
  GONE = 410,
  LENGTH_REQUIRED = 411,
  PRECONDITION_FAILED = 412,
  PAYLOAD_TOO_LARGE = 413,
  URI_TOO_LONG = 414,
  UNSUPPORTED_MEDIA_TYPE = 415,
  RANGE_NOT_SATISFIABLE = 416,
  EXPECTATION_FAILED = 417,
  IM_A_TEAPOT = 418,
  MISDIRECTED_REQUEST = 421,
  UNPROCESSABLE_ENTITY = 422,
  LOCKED = 423,
  FAILED_DEPENDENCY = 424,
  UPGRADE_REQUIRED = 426,
  PRECONDITION_REQUIRED = 428,
  TOO_MANY_REQUESTS = 429,
  REQUEST_HEADER_FIELDS_TOO_LARGE = 431,
  UNAVAILABLE_FOR_LEGAL_REASONS = 451,

  // 5xx Server errors
  INTERNAL_SERVER_ERROR = 500,
  NOT_IMPLEMENTED = 501,
  BAD_GATEWAY = 502,
  SERVICE_UNAVAILABLE = 503,
  GATEWAY_TIMEOUT = 504,
  HTTP_VERSION_NOT_SUPPORTED = 505,
  VARIANT_ALSO_NEGOTIATES = 506,
  INSUFFICIENT_STORAGE = 507,
  LOOP_DETECTED = 508,
  NOT_EXTENDED = 510,
  NETWORK_AUTHENTICATION_REQUIRED = 511,
}

HTTP status codes are integral to the web development process, offering insights into the state of web requests. With TypeScript’s Enums, managing these codes becomes a structured and efficient task. As developers continue to build and enhance web applications, understanding and effectively handling these status codes is paramount to delivering a robust user experience.