Status

Using named status codes is more better than bare ones.

It continues using the good named style from Django REST framework

// bad part
/**
 * Although it's easy and straightforward to represent connotation
 * (used status code), it's lack of denotation (concrete message)
 * to represent itself.
 */
res.status(200);

// normal part
/**
 * Set status code to a constant but it's not clear
 * because it's only used by http.
 */
const OK = 200;
res.status(OK);  // OK is 200

// good part
/**
 * It's composed of status code and message as a named constant.
 * It has met `connotation` and `denotation`. Therefore, it's
 * very high readable!
 */
res.status(HTTP_200_OK);

Installation

$ npm install @libs/status

Usage & Example

import * as status from '@libs/status';

res.status(status.HTTP_200_OK);

APIs

Validator

• isInformational: (code: number) => boolean;
• isSuccess: (code: number) => boolean;
• isRedirect: (code: number) => boolean;
• isClientError: (code: number) => boolean;
• isServerError: (code: number) => boolean;

Constants

• HTTP_100_CONTINUE = 100;
• HTTP_101_SWITCHING_PROTOCOLS = 101;
• HTTP_200_OK = 200;
• HTTP_201_CREATED = 201;
• HTTP_202_ACCEPTED = 202;
• HTTP_203_NON_AUTHORITATIVE_INFORMATION = 203;
• HTTP_204_NO_CONTENT = 204;
• HTTP_205_RESET_CONTENT = 205;
• HTTP_206_PARTIAL_CONTENT = 206;
• HTTP_207_MULTI_STATUS = 207;
• HTTP_300_MULTIPLE_CHOICES = 300;
• HTTP_301_MOVED_PERMANENTLY = 301;
• HTTP_302_FOUND = 302;
• HTTP_303_SEE_OTHER = 303;
• HTTP_304_NOT_MODIFIED = 304;
• HTTP_305_USE_PROXY = 305;
• HTTP_306_RESERVED = 306;
• HTTP_307_TEMPORARY_REDIRECT = 307;
• HTTP_400_BAD_REQUEST = 400;
• HTTP_401_UNAUTHORIZED = 401;
• HTTP_402_PAYMENT_REQUIRED = 402;
• HTTP_403_FORBIDDEN = 403;
• HTTP_404_NOT_FOUND = 404;
• HTTP_405_METHOD_NOT_ALLOWED = 405;
• HTTP_406_NOT_ACCEPTABLE = 406;
• HTTP_407_PROXY_AUTHENTICATION_REQUIRED = 407;
• HTTP_408_REQUEST_TIMEOUT = 408;
• HTTP_409_CONFLICT = 409;
• HTTP_410_GONE = 410;
• HTTP_411_LENGTH_REQUIRED = 411;
• HTTP_412_PRECONDITION_FAILED = 412;
• HTTP_413_REQUEST_ENTITY_TOO_LARGE = 413;
• HTTP_414_REQUEST_URI_TOO_LONG = 414;
• HTTP_415_UNSUPPORTED_MEDIA_TYPE = 415;
• HTTP_416_REQUESTED_RANGE_NOT_SATISFIABLE = 416;
• HTTP_417_EXPECTATION_FAILED = 417;
• HTTP_422_UNPROCESSABLE_ENTITY = 422;
• HTTP_423_LOCKED = 423;
• HTTP_424_FAILED_DEPENDENCY = 424;
• HTTP_428_PRECONDITION_REQUIRED = 428;
• HTTP_429_TOO_MANY_REQUESTS = 429;
• HTTP_431_REQUEST_HEADER_FIELDS_TOO_LARGE = 431;
• HTTP_451_UNAVAILABLE_FOR_LEGAL_REASONS = 451;
• HTTP_500_INTERNAL_SERVER_ERROR = 500;
• HTTP_501_NOT_IMPLEMENTED = 501;
• HTTP_502_BAD_GATEWAY = 502;
• HTTP_503_SERVICE_UNAVAILABLE = 503;
• HTTP_504_GATEWAY_TIMEOUT = 504;
• HTTP_505_HTTP_VERSION_NOT_SUPPORTED = 505;
• HTTP_507_INSUFFICIENT_STORAGE = 507;
• HTTP_511_NETWORK_AUTHENTICATION_REQUIRED = 511;