Fiber provides constants for HTTP methods, status codes, headers, MIME types, and common errors.Documentation Index
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HTTP Methods
Standard HTTP methods as defined in RFC 7231.const (
MethodGet = "GET" // RFC 7231, 4.3.1
MethodHead = "HEAD" // RFC 7231, 4.3.2
MethodPost = "POST" // RFC 7231, 4.3.3
MethodPut = "PUT" // RFC 7231, 4.3.4
MethodPatch = "PATCH" // RFC 5789
MethodDelete = "DELETE" // RFC 7231, 4.3.5
MethodConnect = "CONNECT" // RFC 7231, 4.3.6
MethodOptions = "OPTIONS" // RFC 7231, 4.3.7
MethodTrace = "TRACE" // RFC 7231, 4.3.8
)
HTTP Status Codes
Standard HTTP status codes from RFC 9110.1xx Informational
const (
StatusContinue = 100 // RFC 9110, 15.2.1
StatusSwitchingProtocols = 101 // RFC 9110, 15.2.2
StatusProcessing = 102 // RFC 2518, 10.1
StatusEarlyHints = 103 // RFC 8297
)
2xx Success
const (
StatusOK = 200 // RFC 9110, 15.3.1
StatusCreated = 201 // RFC 9110, 15.3.2
StatusAccepted = 202 // RFC 9110, 15.3.3
StatusNonAuthoritativeInformation = 203 // RFC 9110, 15.3.4
StatusNoContent = 204 // RFC 9110, 15.3.5
StatusResetContent = 205 // RFC 9110, 15.3.6
StatusPartialContent = 206 // RFC 9110, 15.3.7
StatusMultiStatus = 207 // RFC 4918, 11.1
StatusAlreadyReported = 208 // RFC 5842, 7.1
StatusIMUsed = 226 // RFC 3229, 10.4.1
)
3xx Redirection
const (
StatusMultipleChoices = 300 // RFC 9110, 15.4.1
StatusMovedPermanently = 301 // RFC 9110, 15.4.2
StatusFound = 302 // RFC 9110, 15.4.3
StatusSeeOther = 303 // RFC 9110, 15.4.4
StatusNotModified = 304 // RFC 9110, 15.4.5
StatusUseProxy = 305 // RFC 9110, 15.4.6
StatusSwitchProxy = 306 // RFC 9110, 15.4.7 (Unused)
StatusTemporaryRedirect = 307 // RFC 9110, 15.4.8
StatusPermanentRedirect = 308 // RFC 9110, 15.4.9
)
4xx Client Errors
const (
StatusBadRequest = 400 // RFC 9110, 15.5.1
StatusUnauthorized = 401 // RFC 9110, 15.5.2
StatusPaymentRequired = 402 // RFC 9110, 15.5.3
StatusForbidden = 403 // RFC 9110, 15.5.4
StatusNotFound = 404 // RFC 9110, 15.5.5
StatusMethodNotAllowed = 405 // RFC 9110, 15.5.6
StatusNotAcceptable = 406 // RFC 9110, 15.5.7
StatusProxyAuthRequired = 407 // RFC 9110, 15.5.8
StatusRequestTimeout = 408 // RFC 9110, 15.5.9
StatusConflict = 409 // RFC 9110, 15.5.10
StatusGone = 410 // RFC 9110, 15.5.11
StatusLengthRequired = 411 // RFC 9110, 15.5.12
StatusPreconditionFailed = 412 // RFC 9110, 15.5.13
StatusRequestEntityTooLarge = 413 // RFC 9110, 15.5.14
StatusRequestURITooLong = 414 // RFC 9110, 15.5.15
StatusUnsupportedMediaType = 415 // RFC 9110, 15.5.16
StatusRequestedRangeNotSatisfiable = 416 // RFC 9110, 15.5.17
StatusExpectationFailed = 417 // RFC 9110, 15.5.18
StatusTeapot = 418 // RFC 9110, 15.5.19 (Unused)
StatusMisdirectedRequest = 421 // RFC 9110, 15.5.20
StatusUnprocessableEntity = 422 // RFC 9110, 15.5.21
StatusLocked = 423 // RFC 4918, 11.3
StatusFailedDependency = 424 // RFC 4918, 11.4
StatusTooEarly = 425 // RFC 8470, 5.2
StatusUpgradeRequired = 426 // RFC 9110, 15.5.22
StatusPreconditionRequired = 428 // RFC 6585, 3
StatusTooManyRequests = 429 // RFC 6585, 4
StatusRequestHeaderFieldsTooLarge = 431 // RFC 6585, 5
StatusUnavailableForLegalReasons = 451 // RFC 7725, 3
)
5xx Server Errors
const (
StatusInternalServerError = 500 // RFC 9110, 15.6.1
StatusNotImplemented = 501 // RFC 9110, 15.6.2
StatusBadGateway = 502 // RFC 9110, 15.6.3
StatusServiceUnavailable = 503 // RFC 9110, 15.6.4
StatusGatewayTimeout = 504 // RFC 9110, 15.6.5
StatusHTTPVersionNotSupported = 505 // RFC 9110, 15.6.6
StatusVariantAlsoNegotiates = 506 // RFC 2295, 8.1
StatusInsufficientStorage = 507 // RFC 4918, 11.5
StatusLoopDetected = 508 // RFC 5842, 7.2
StatusNotExtended = 510 // RFC 2774, 7
StatusNetworkAuthenticationRequired = 511 // RFC 6585, 6
)
Error Constants
Pre-defined error instances for common HTTP errors.var (
ErrBadRequest = NewError(StatusBadRequest) // 400
ErrUnauthorized = NewError(StatusUnauthorized) // 401
ErrPaymentRequired = NewError(StatusPaymentRequired) // 402
ErrForbidden = NewError(StatusForbidden) // 403
ErrNotFound = NewError(StatusNotFound) // 404
ErrMethodNotAllowed = NewError(StatusMethodNotAllowed) // 405
ErrNotAcceptable = NewError(StatusNotAcceptable) // 406
ErrProxyAuthRequired = NewError(StatusProxyAuthRequired) // 407
ErrRequestTimeout = NewError(StatusRequestTimeout) // 408
ErrConflict = NewError(StatusConflict) // 409
ErrGone = NewError(StatusGone) // 410
ErrLengthRequired = NewError(StatusLengthRequired) // 411
ErrPreconditionFailed = NewError(StatusPreconditionFailed) // 412
ErrRequestEntityTooLarge = NewError(StatusRequestEntityTooLarge) // 413
ErrRequestURITooLong = NewError(StatusRequestURITooLong) // 414
ErrUnsupportedMediaType = NewError(StatusUnsupportedMediaType) // 415
ErrRequestedRangeNotSatisfiable = NewError(StatusRequestedRangeNotSatisfiable) // 416
ErrExpectationFailed = NewError(StatusExpectationFailed) // 417
ErrTeapot = NewError(StatusTeapot) // 418
ErrMisdirectedRequest = NewError(StatusMisdirectedRequest) // 421
ErrUnprocessableEntity = NewError(StatusUnprocessableEntity) // 422
ErrLocked = NewError(StatusLocked) // 423
ErrFailedDependency = NewError(StatusFailedDependency) // 424
ErrTooEarly = NewError(StatusTooEarly) // 425
ErrUpgradeRequired = NewError(StatusUpgradeRequired) // 426
ErrPreconditionRequired = NewError(StatusPreconditionRequired) // 428
ErrTooManyRequests = NewError(StatusTooManyRequests) // 429
ErrRequestHeaderFieldsTooLarge = NewError(StatusRequestHeaderFieldsTooLarge) // 431
ErrUnavailableForLegalReasons = NewError(StatusUnavailableForLegalReasons) // 451
ErrInternalServerError = NewError(StatusInternalServerError) // 500
ErrNotImplemented = NewError(StatusNotImplemented) // 501
ErrBadGateway = NewError(StatusBadGateway) // 502
ErrServiceUnavailable = NewError(StatusServiceUnavailable) // 503
ErrGatewayTimeout = NewError(StatusGatewayTimeout) // 504
ErrHTTPVersionNotSupported = NewError(StatusHTTPVersionNotSupported) // 505
ErrVariantAlsoNegotiates = NewError(StatusVariantAlsoNegotiates) // 506
ErrInsufficientStorage = NewError(StatusInsufficientStorage) // 507
ErrLoopDetected = NewError(StatusLoopDetected) // 508
ErrNotExtended = NewError(StatusNotExtended) // 510
ErrNetworkAuthenticationRequired = NewError(StatusNetworkAuthenticationRequired) // 511
)
Example
app.Get("/admin", func(c fiber.Ctx) error {
if !isAdmin(c) {
return fiber.ErrForbidden
}
return c.SendString("Admin panel")
})
MIME Types
Common MIME type constants.const (
MIMETextXML = "text/xml"
MIMETextHTML = "text/html"
MIMETextPlain = "text/plain"
MIMETextJavaScript = "text/javascript"
MIMETextCSS = "text/css"
MIMEApplicationXML = "application/xml"
MIMEApplicationJSON = "application/json"
MIMEApplicationJavaScript = "application/javascript"
MIMEApplicationCBOR = "application/cbor"
MIMEApplicationForm = "application/x-www-form-urlencoded"
MIMEOctetStream = "application/octet-stream"
MIMEMultipartForm = "multipart/form-data"
MIMEApplicationMsgPack = "application/vnd.msgpack"
MIMETextXMLCharsetUTF8 = "text/xml; charset=utf-8"
MIMETextHTMLCharsetUTF8 = "text/html; charset=utf-8"
MIMETextPlainCharsetUTF8 = "text/plain; charset=utf-8"
MIMETextJavaScriptCharsetUTF8 = "text/javascript; charset=utf-8"
MIMETextCSSCharsetUTF8 = "text/css; charset=utf-8"
MIMEApplicationXMLCharsetUTF8 = "application/xml; charset=utf-8"
MIMEApplicationJSONCharsetUTF8 = "application/json; charset=utf-8"
)
HTTP Headers
Standard HTTP header name constants.const (
// Authentication
HeaderAuthorization = "Authorization"
HeaderProxyAuthenticate = "Proxy-Authenticate"
HeaderProxyAuthorization = "Proxy-Authorization"
HeaderWWWAuthenticate = "WWW-Authenticate"
// Caching
HeaderAge = "Age"
HeaderCacheControl = "Cache-Control"
HeaderClearSiteData = "Clear-Site-Data"
HeaderExpires = "Expires"
HeaderPragma = "Pragma"
HeaderWarning = "Warning"
// Conditionals
HeaderETag = "ETag"
HeaderIfMatch = "If-Match"
HeaderIfModifiedSince = "If-Modified-Since"
HeaderIfNoneMatch = "If-None-Match"
HeaderIfUnmodifiedSince = "If-Unmodified-Since"
HeaderLastModified = "Last-Modified"
HeaderVary = "Vary"
// Connection
HeaderConnection = "Connection"
HeaderKeepAlive = "Keep-Alive"
// Content Negotiation
HeaderAccept = "Accept"
HeaderAcceptCharset = "Accept-Charset"
HeaderAcceptEncoding = "Accept-Encoding"
HeaderAcceptLanguage = "Accept-Language"
// Cookies
HeaderCookie = "Cookie"
HeaderSetCookie = "Set-Cookie"
// CORS
HeaderAccessControlAllowCredentials = "Access-Control-Allow-Credentials"
HeaderAccessControlAllowHeaders = "Access-Control-Allow-Headers"
HeaderAccessControlAllowMethods = "Access-Control-Allow-Methods"
HeaderAccessControlAllowOrigin = "Access-Control-Allow-Origin"
HeaderAccessControlExposeHeaders = "Access-Control-Expose-Headers"
HeaderAccessControlMaxAge = "Access-Control-Max-Age"
HeaderAccessControlRequestHeaders = "Access-Control-Request-Headers"
HeaderAccessControlRequestMethod = "Access-Control-Request-Method"
HeaderOrigin = "Origin"
// Message Body Information
HeaderContentDisposition = "Content-Disposition"
HeaderContentEncoding = "Content-Encoding"
HeaderContentLanguage = "Content-Language"
HeaderContentLength = "Content-Length"
HeaderContentLocation = "Content-Location"
HeaderContentType = "Content-Type"
// Proxies
HeaderForwarded = "Forwarded"
HeaderVia = "Via"
HeaderXForwardedFor = "X-Forwarded-For"
HeaderXForwardedHost = "X-Forwarded-Host"
HeaderXForwardedProto = "X-Forwarded-Proto"
HeaderXForwardedProtocol = "X-Forwarded-Protocol"
HeaderXForwardedSsl = "X-Forwarded-Ssl"
HeaderXUrlScheme = "X-Url-Scheme"
// Request Context
HeaderFrom = "From"
HeaderHost = "Host"
HeaderReferer = "Referer"
HeaderReferrerPolicy = "Referrer-Policy"
HeaderUserAgent = "User-Agent"
// Response Context
HeaderAllow = "Allow"
HeaderServer = "Server"
// Range Requests
HeaderAcceptRanges = "Accept-Ranges"
HeaderContentRange = "Content-Range"
HeaderIfRange = "If-Range"
HeaderRange = "Range"
// Security
HeaderContentSecurityPolicy = "Content-Security-Policy"
HeaderContentSecurityPolicyReportOnly = "Content-Security-Policy-Report-Only"
HeaderCrossOriginResourcePolicy = "Cross-Origin-Resource-Policy"
HeaderExpectCT = "Expect-CT"
HeaderPermissionsPolicy = "Permissions-Policy"
HeaderPublicKeyPins = "Public-Key-Pins"
HeaderPublicKeyPinsReportOnly = "Public-Key-Pins-Report-Only"
HeaderStrictTransportSecurity = "Strict-Transport-Security"
HeaderUpgradeInsecureRequests = "Upgrade-Insecure-Requests"
HeaderXContentTypeOptions = "X-Content-Type-Options"
HeaderXDownloadOptions = "X-Download-Options"
HeaderXFrameOptions = "X-Frame-Options"
HeaderXPoweredBy = "X-Powered-By"
HeaderXXSSProtection = "X-XSS-Protection"
// WebSocket
HeaderSecWebSocketAccept = "Sec-WebSocket-Accept"
HeaderSecWebSocketExtensions = "Sec-WebSocket-Extensions"
HeaderSecWebSocketKey = "Sec-WebSocket-Key"
HeaderSecWebSocketProtocol = "Sec-WebSocket-Protocol"
HeaderSecWebSocketVersion = "Sec-WebSocket-Version"
HeaderUpgrade = "Upgrade"
// Other
HeaderDate = "Date"
HeaderLocation = "Location"
HeaderRetryAfter = "Retry-After"
HeaderTE = "TE"
HeaderTrailer = "Trailer"
HeaderTransferEncoding = "Transfer-Encoding"
HeaderXRequestID = "X-Request-ID"
HeaderXRequestedWith = "X-Requested-With"
)
Network Types
const (
NetworkTCP = "tcp"
NetworkTCP4 = "tcp4"
NetworkTCP6 = "tcp6"
NetworkUnix = "unix"
)
Compression Types
const (
CompressionGzip = "gzip"
CompressionBrotli = "br"
CompressionZstd = "zstd"
CompressionDeflate = "deflate"
)