Reference:
http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
http://www.w3.org/Protocols/rfc2616/rfc2616-sec6.html#sec6.1.1
module.exports =Request received, continuing process
100: 'Continue'
101: 'Switching Protocols'The action was successfully received, understood, and accepted
200: 'OK'
201: 'Created'
202: 'Accepted'
203: 'Non-Authoritative Information'
204: 'No Content'
205: 'Reset Content'
206: 'Partial Content'
207: 'Multi Status' # WebDAV; RFC 4918
208: 'Already Reported' # WebDAV; RFC 5842
226: 'IM Used' # RFC 3229Further action must be taken in order to complete the request
300: 'Multiple Choices'
301: 'Moved Permanently'
302: 'Found'
303: 'See Other'
304: 'Not Modified'
305: 'Use Proxy' # since HTTP/1.1
306: 'Switch Proxy'
307: 'Temporary Redirect' # since HTTP/1.1
308: 'Permanent Redirect' # RFC 7538The request contains bad syntax or cannot be fulfilled
400: 'Bad Request'
401: 'Unauthorized'
402: 'Payment Required'
403: 'Forbidden'
404: 'Not Found'
405: 'Method Not Allowed'
406: 'Not Acceptable'
407: 'Proxy Authentication Required'
408: 'Request Time-out'
409: 'Conflict'
410: 'Gone'
411: 'Length Required'
412: 'Precondition Failed'
413: 'Request Entity Too Large'
414: 'Request-URI Too Large'
415: 'Unsupported Media Type'
416: 'Requested Range not Satisfiable'
417: 'Expectation Failed'Any attempt to brew coffee with a teapot should result in the error code "418 I'm a teapot". The resulting entity body MAY be short and stout.
418: 'I\'m a teapot' # RFC 2324
421: 'Misdirected Request'
422: 'Unprocessable Entity'
423: 'Locked'
424: 'Failed Dependency'
426: 'Upgrade Required'
428: 'Precondition Required' # RFC 6585
429: 'Too Many Requests'
431: 'Request Header Fields Too Large' # RFC 6585
451: 'Unavailable For Legal Reasons'The server failed to fulfill an apparently valid request
500: 'Internal Server Error'
501: 'Not Implemented'
502: 'Bad Gateway'
503: 'Service Unavailable'
504: 'Gateway Time-out'
505: 'HTTP Version not Supported'
506: 'Variant Also Negotiates' # RFC 2295
507: 'Insufficient Storage'
508: 'Loop Detected' # WebDAV; RFC 5842
510: 'Not Extended' # RFC 2774
511: 'Network Authentication Required' # RFC 6585Request received, continuing process
CONTINUE: 100
SWITCHING_PROTOCOLS: 101The action was successfully received, understood, and accepted
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: 226Further action must be taken in order to complete the request
MULTIPLE_CHOICES: 300
MOVED_PERMANENTLY: 301
FOUND: 302
SEE_OTHER: 303
NOT_MODIFIED: 304
USE_PROXY: 305
SWITCH_PROXY: 306
TEMPORARY_REDIRECT: 307
PERMANENT_REDIRECT: 308The request contains bad syntax or cannot be fulfilled
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
REQUEST_ENTITY_TOO_LARGE: 413
REQUEST_URI_TOO_LONG: 414
UNSUPPORTED_MEDIA_TYPE: 415
REQUESTED_RANGE_NOT_SATISFIABLE: 416
EXPECTATION_FAILED: 417
IM_A_TEAPOT: 418
MISDIRECTED_REQUEST: 421
UNPROCESSABLE_ENTITY: 422
UPGRADE_REQUIRED: 426
PRECONDITION_REQUIRED: 428
LOCKED: 423
FAILED_DEPENDENCY: 424
TOO_MANY_REQUESTS: 429
REQUEST_HEADER_FIELDS_TOO_LARGE: 431
UNAVAILABLE_FOR_LEGAL_REASONS: 451The server failed to fulfill an apparently valid request
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