chickadee » intarweb » http-status-codes

This is an alist mapping symbolic status indicators to HTTP codes and reason strings.

These can be used to make your code a bit more expressive and to reduce duplication of hardcoded strings; instead of using a numeric "magic number" HTTP code plus the same human-readable string everywhere the same code occurs, you can instead use a descriptive symbol.

The default value of this mapping is as follows:

    ((continue . (100 . "Continue"))
     (switching-protocols . (101 . "Switching Protocols"))
     (processing . (102 . "Processing"))
     (ok . (200 . "OK"))
     (created . (201 . "Created"))
     (accepted . (202 . "Accepted"))
     (non-authoritative-information . (203 . "Non-Authoritative Information"))
     (no-content . (204 . "No Content"))
     (reset-content . (205 . "Reset Content"))
     (partial-content . (206 . "Partial Content"))
     (multi-status . (207 . "Multi-Status"))
     (already-reported . (208 . "Already Reported"))
     (im-used . (226 . "IM Used"))
     (multiple-choices . (300 . "Multiple Choices"))
     (moved-permanently . (301 . "Moved Permanently"))
     (found . (302 . "Found"))
     (see-other . (303 . "See Other"))
     (not-modified . (304 . "Not Modified"))
     (use-proxy . (305 . "Use Proxy"))
     (temporary-redirect . (307 . "Temporary Redirect"))
     (bad-request . (400 . "Bad Request"))
     (unauthorized . (401 . "Unauthorized"))
     (payment-required . (402 . "Payment Required"))
     (forbidden . (403 . "Forbidden"))
     (not-found . (404 . "Not Found"))
     (method-not-allowed . (405 . "Method Not Allowed"))
     (not-acceptable . (406 . "Not Acceptable"))
     (proxy-authentication-required . (407 . "Proxy Authentication Required"))
     (request-time-out . (408 . "Request Time-out"))
     (conflict . (409 . "Conflict"))
     (gone . (410 . "Gone"))
     (length-required . (411 . "Length Required"))
     (precondition-failed . (412 . "Precondition Failed"))
     (request-entity-too-large . (413 . "Request Entity Too Large"))
     (request-uri-too-large . (414 . "Request-URI Too Large"))
     (unsupported-media-type . (415 . "Unsupported Media Type"))
     (requested-range-not-satisfiable . (416 . "Requested Range Not Satisfiable"))
     (expectation-failed . (417 . "Expectation Failed"))
     (unprocessable-entity . (422 . "Unprocessable Entity"))
     (locked . (423 . "Locked"))
     (failed-dependency . (424 . "Failed Dependency"))
     (upgrade-required . (426 . "Upgrade Required"))
     (precondition-required . (428 . "Precondition Required"))
     (too-many-requests . (429 . "Too Many Requests"))
     (request-header-fields-too-large . (431 . "Request Header Fields Too Large"))
     (internal-server-error . (500 . "Internal Server Error"))
     (not-implemented . (501 . "Not Implemented"))
     (bad-gateway . (502 . "Bad Gateway"))
     (service-unavailable . (503 . "Service Unavailable"))
     (gateway-time-out . (504 . "Gateway Time-out"))
     (http-version-not-supported . (505 . "HTTP Version Not Supported"))
     (insufficient-storage . (507 . "Insufficient Storage"))
     (loop-detected . (508 . "Loop Detected"))
     (not-extended . (510 . "Not Extended"))
     (network-authentication-required . (511 . "Network Authentication Required")))