http-response-status-codes

Constants for standard HTTP response status codes that indicate whether a specific HTTP request has been successfully completed.

Based on MDN web docs.

Installation

npm i http-response-status-codes

Usage (express.js example)

const HTTP_STATUS = require('http-response-status-codes');
 
app.get('/ping', (req, res) => {
  res.status(HTTP_STATUS.SUCCESS.OK).send('Pong');
});
 
app.get('/account', (req, res) => {
  res.status(HTTP_STATUS.CLIENT.UNAUTHORIZED).send('Pong');
});
 
app.get('/calculate', (req, res) => {
  res.status(HTTP_STATUS.SERVER.INTERNAL_SERVER_ERROR).send('Pong');
});

Codes

Response Class	Constant Name	Status Code
INFORMATION	CONTINUE	100
	SWITCHING_PROTOCOL	101
	PROCESSING	102
	EARLY_HINTS	103
SUCCESS	OK	200
	ACCEPTED	201
	NON_AUTHORITATIVE_INFORMATION	203
	NO_CONTENT	204
	RESET_CONTENT	205
	PARTIAL_CONTENT	206
	MULTI_STATUS	207
	ALREADY_IMPORTED	208
	IM_USED	226
REDIRECTION	MULTIPLE_CHOICE	300
	MOVED_PERMANENTLY	301
	FOUND	302
	SEE_OTHER	303
	NOT_MODIFIED	304
	USE_PROXY	305
	UNUSED	306
	TEMPORARY_REDIRECT	307
	PERMANENT_REDIRECT	308
CLIENT	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
	I_AM_A_TEAPOT	418
	MISDIRECTED_REQUEST	421
	UNPROCESSABLE_ENTITY	422
	LOCKED	423
	FAILED_DEPENDENCY	424
	TOO_EARLY	425
	UPGRADE_REQUIRED	426
	PRECONDITION_REQUIRED	428
	TOO_MANY_REQUESTS	429
	REQUEST_HEADER_FIELDS_TOO_LARGE	431
	UNAVAILABLE_FOR_LEGAL_REASONS	451
SERVER	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