Struct http::status::StatusCode

pub struct StatusCode(_);

An HTTP status code (status-code in RFC 7230 et al.).

This type contains constants for all common status codes. It allows status codes in the range [100, 599].

IANA maintain the Hypertext Transfer Protocol (HTTP) Status Code Registry which is the source for this enum (with one exception, 418 I'm a teapot, which is inexplicably not in the register).

Examples

use http::StatusCode;

assert_eq!(StatusCode::from_u16(200).unwrap(), StatusCode::OK);
assert_eq!(StatusCode::NOT_FOUND.as_u16(), 404);
assert!(StatusCode::OK.is_success());

Methods

impl StatusCode

pub fn from_u16(src: u16) -> Result<StatusCode, InvalidStatusCode>

Converts a u16 to a status code.

The function validates the correctness of the supplied u16. It must be greater or equal to 100 but less than 600.

Example

use http::StatusCode;

let ok = StatusCode::from_u16(200).unwrap();
assert_eq!(ok, StatusCode::OK);

let err = StatusCode::from_u16(99);
assert!(err.is_err());

pub fn from_bytes(src: &[u8]) -> Result<StatusCode, InvalidStatusCode>

Converts a &[u8] to a status code

pub fn as_u16(&self) -> u16

Returns the u16 corresponding to this StatusCode.

Note

This is the same as the From<StatusCode> implementation, but included as an inherent method because that implementation doesn't appear in rustdocs, as well as a way to force the type instead of relying on inference.

Example

let status = http::StatusCode::OK;
assert_eq!(status.as_u16(), 200);

pub fn as_str(&self) -> &str

Returns a &str representation of the StatusCode

The return value only includes a numerical representation of the status code. The canonical reason is not included.

Example

let status = http::StatusCode::OK;
assert_eq!(status.as_str(), "200");

pub fn canonical_reason(&self) -> Option<&'static str>

Get the standardised reason-phrase for this status code.

This is mostly here for servers writing responses, but could potentially have application at other times.

The reason phrase is defined as being exclusively for human readers. You should avoid deriving any meaning from it at all costs.

Bear in mind also that in HTTP/2.0 the reason phrase is abolished from transmission, and so this canonical reason phrase really is the only reason phrase you’ll find.

Example

let status = http::StatusCode::OK;
assert_eq!(status.canonical_reason(), Some("OK"));

pub fn is_informational(&self) -> bool

Check if status is within 100-199.

pub fn is_success(&self) -> bool

Check if status is within 200-299.

pub fn is_redirection(&self) -> bool

Check if status is within 300-399.

pub fn is_client_error(&self) -> bool

Check if status is within 400-499.

pub fn is_server_error(&self) -> bool

Check if status is within 500-599.

impl StatusCode

pub const CONTINUE: StatusCode

CONTINUE: StatusCode = StatusCode(100)

100 Continue [RFC7231, Section 6.2.1]

pub const SWITCHING_PROTOCOLS: StatusCode

SWITCHING_PROTOCOLS: StatusCode = StatusCode(101)

101 Switching Protocols [RFC7231, Section 6.2.2]

pub const PROCESSING: StatusCode

PROCESSING: StatusCode = StatusCode(102)

102 Processing [RFC2518]

pub const OK: StatusCode

OK: StatusCode = StatusCode(200)

200 OK [RFC7231, Section 6.3.1]

pub const CREATED: StatusCode

CREATED: StatusCode = StatusCode(201)

201 Created [RFC7231, Section 6.3.2]

pub const ACCEPTED: StatusCode

ACCEPTED: StatusCode = StatusCode(202)

202 Accepted [RFC7231, Section 6.3.3]

pub const NON_AUTHORITATIVE_INFORMATION: StatusCode

NON_AUTHORITATIVE_INFORMATION: StatusCode = StatusCode(203)

203 Non-Authoritative Information [RFC7231, Section 6.3.4]

pub const NO_CONTENT: StatusCode

NO_CONTENT: StatusCode = StatusCode(204)

204 No Content [RFC7231, Section 6.3.5]

pub const RESET_CONTENT: StatusCode

RESET_CONTENT: StatusCode = StatusCode(205)

205 Reset Content [RFC7231, Section 6.3.6]

pub const PARTIAL_CONTENT: StatusCode

PARTIAL_CONTENT: StatusCode = StatusCode(206)

206 Partial Content [RFC7233, Section 4.1]

pub const MULTI_STATUS: StatusCode

MULTI_STATUS: StatusCode = StatusCode(207)

207 Multi-Status [RFC4918]

pub const ALREADY_REPORTED: StatusCode

ALREADY_REPORTED: StatusCode = StatusCode(208)

208 Already Reported [RFC5842]

pub const IM_USED: StatusCode

IM_USED: StatusCode = StatusCode(226)

226 IM Used [RFC3229]

pub const MULTIPLE_CHOICES: StatusCode

MULTIPLE_CHOICES: StatusCode = StatusCode(300)

300 Multiple Choices [RFC7231, Section 6.4.1]

pub const MOVED_PERMANENTLY: StatusCode

MOVED_PERMANENTLY: StatusCode = StatusCode(301)

301 Moved Permanently [RFC7231, Section 6.4.2]

pub const FOUND: StatusCode

FOUND: StatusCode = StatusCode(302)

302 Found [RFC7231, Section 6.4.3]

pub const SEE_OTHER: StatusCode

SEE_OTHER: StatusCode = StatusCode(303)

303 See Other [RFC7231, Section 6.4.4]

pub const NOT_MODIFIED: StatusCode

NOT_MODIFIED: StatusCode = StatusCode(304)

304 Not Modified [RFC7232, Section 4.1]

pub const USE_PROXY: StatusCode

USE_PROXY: StatusCode = StatusCode(305)

305 Use Proxy [RFC7231, Section 6.4.5]

pub const TEMPORARY_REDIRECT: StatusCode

TEMPORARY_REDIRECT: StatusCode = StatusCode(307)

307 Temporary Redirect [RFC7231, Section 6.4.7]

pub const PERMANENT_REDIRECT: StatusCode

PERMANENT_REDIRECT: StatusCode = StatusCode(308)

308 Permanent Redirect [RFC7238]

pub const BAD_REQUEST: StatusCode

BAD_REQUEST: StatusCode = StatusCode(400)

400 Bad Request [RFC7231, Section 6.5.1]

pub const UNAUTHORIZED: StatusCode

UNAUTHORIZED: StatusCode = StatusCode(401)

401 Unauthorized [RFC7235, Section 3.1]

pub const PAYMENT_REQUIRED: StatusCode

PAYMENT_REQUIRED: StatusCode = StatusCode(402)

402 Payment Required [RFC7231, Section 6.5.2]

pub const FORBIDDEN: StatusCode

FORBIDDEN: StatusCode = StatusCode(403)

403 Forbidden [RFC7231, Section 6.5.3]

pub const NOT_FOUND: StatusCode

NOT_FOUND: StatusCode = StatusCode(404)

404 Not Found [RFC7231, Section 6.5.4]

pub const METHOD_NOT_ALLOWED: StatusCode

METHOD_NOT_ALLOWED: StatusCode = StatusCode(405)

405 Method Not Allowed [RFC7231, Section 6.5.5]

pub const NOT_ACCEPTABLE: StatusCode

NOT_ACCEPTABLE: StatusCode = StatusCode(406)

406 Not Acceptable [RFC7231, Section 6.5.6]

pub const PROXY_AUTHENTICATION_REQUIRED: StatusCode

PROXY_AUTHENTICATION_REQUIRED: StatusCode = StatusCode(407)

407 Proxy Authentication Required [RFC7235, Section 3.2]

pub const REQUEST_TIMEOUT: StatusCode

REQUEST_TIMEOUT: StatusCode = StatusCode(408)

408 Request Timeout [RFC7231, Section 6.5.7]

pub const CONFLICT: StatusCode

CONFLICT: StatusCode = StatusCode(409)

409 Conflict [RFC7231, Section 6.5.8]

pub const GONE: StatusCode

GONE: StatusCode = StatusCode(410)

410 Gone [RFC7231, Section 6.5.9]

pub const LENGTH_REQUIRED: StatusCode

LENGTH_REQUIRED: StatusCode = StatusCode(411)

411 Length Required [RFC7231, Section 6.5.10]

pub const PRECONDITION_FAILED: StatusCode

PRECONDITION_FAILED: StatusCode = StatusCode(412)

412 Precondition Failed [RFC7232, Section 4.2]

pub const PAYLOAD_TOO_LARGE: StatusCode

PAYLOAD_TOO_LARGE: StatusCode = StatusCode(413)

413 Payload Too Large [RFC7231, Section 6.5.11]

pub const URI_TOO_LONG: StatusCode

URI_TOO_LONG: StatusCode = StatusCode(414)

414 URI Too Long [RFC7231, Section 6.5.12]

pub const UNSUPPORTED_MEDIA_TYPE: StatusCode

UNSUPPORTED_MEDIA_TYPE: StatusCode = StatusCode(415)

415 Unsupported Media Type [RFC7231, Section 6.5.13]

pub const RANGE_NOT_SATISFIABLE: StatusCode

RANGE_NOT_SATISFIABLE: StatusCode = StatusCode(416)

416 Range Not Satisfiable [RFC7233, Section 4.4]

pub const EXPECTATION_FAILED: StatusCode

EXPECTATION_FAILED: StatusCode = StatusCode(417)

417 Expectation Failed [RFC7231, Section 6.5.14]

pub const IM_A_TEAPOT: StatusCode

IM_A_TEAPOT: StatusCode = StatusCode(418)

418 I'm a teapot [curiously not registered by IANA but RFC2324]

pub const MISDIRECTED_REQUEST: StatusCode

MISDIRECTED_REQUEST: StatusCode = StatusCode(421)

421 Misdirected Request RFC7540, Section 9.1.2

pub const UNPROCESSABLE_ENTITY: StatusCode

UNPROCESSABLE_ENTITY: StatusCode = StatusCode(422)

422 Unprocessable Entity [RFC4918]

pub const LOCKED: StatusCode

LOCKED: StatusCode = StatusCode(423)

423 Locked [RFC4918]

pub const FAILED_DEPENDENCY: StatusCode

FAILED_DEPENDENCY: StatusCode = StatusCode(424)

424 Failed Dependency [RFC4918]

pub const UPGRADE_REQUIRED: StatusCode

UPGRADE_REQUIRED: StatusCode = StatusCode(426)

426 Upgrade Required [RFC7231, Section 6.5.15]

pub const PRECONDITION_REQUIRED: StatusCode

PRECONDITION_REQUIRED: StatusCode = StatusCode(428)

428 Precondition Required [RFC6585]

pub const TOO_MANY_REQUESTS: StatusCode

TOO_MANY_REQUESTS: StatusCode = StatusCode(429)

429 Too Many Requests [RFC6585]

pub const REQUEST_HEADER_FIELDS_TOO_LARGE: StatusCode

REQUEST_HEADER_FIELDS_TOO_LARGE: StatusCode = StatusCode(431)

431 Request Header Fields Too Large [RFC6585]

pub const UNAVAILABLE_FOR_LEGAL_REASONS: StatusCode

UNAVAILABLE_FOR_LEGAL_REASONS: StatusCode = StatusCode(451)

451 Unavailable For Legal Reasons [RFC7725]

pub const INTERNAL_SERVER_ERROR: StatusCode

INTERNAL_SERVER_ERROR: StatusCode = StatusCode(500)

500 Internal Server Error [RFC7231, Section 6.6.1]

pub const NOT_IMPLEMENTED: StatusCode

NOT_IMPLEMENTED: StatusCode = StatusCode(501)

501 Not Implemented [RFC7231, Section 6.6.2]

pub const BAD_GATEWAY: StatusCode

BAD_GATEWAY: StatusCode = StatusCode(502)

502 Bad Gateway [RFC7231, Section 6.6.3]

pub const SERVICE_UNAVAILABLE: StatusCode

SERVICE_UNAVAILABLE: StatusCode = StatusCode(503)

503 Service Unavailable [RFC7231, Section 6.6.4]

pub const GATEWAY_TIMEOUT: StatusCode

GATEWAY_TIMEOUT: StatusCode = StatusCode(504)

504 Gateway Timeout [RFC7231, Section 6.6.5]

pub const HTTP_VERSION_NOT_SUPPORTED: StatusCode

HTTP_VERSION_NOT_SUPPORTED: StatusCode = StatusCode(505)

505 HTTP Version Not Supported [RFC7231, Section 6.6.6]

pub const VARIANT_ALSO_NEGOTIATES: StatusCode

VARIANT_ALSO_NEGOTIATES: StatusCode = StatusCode(506)

506 Variant Also Negotiates [RFC2295]

pub const INSUFFICIENT_STORAGE: StatusCode

INSUFFICIENT_STORAGE: StatusCode = StatusCode(507)

507 Insufficient Storage [RFC4918]

pub const LOOP_DETECTED: StatusCode

LOOP_DETECTED: StatusCode = StatusCode(508)

508 Loop Detected [RFC5842]

pub const NOT_EXTENDED: StatusCode

NOT_EXTENDED: StatusCode = StatusCode(510)

510 Not Extended [RFC2774]

pub const NETWORK_AUTHENTICATION_REQUIRED: StatusCode

NETWORK_AUTHENTICATION_REQUIRED: StatusCode = StatusCode(511)

511 Network Authentication Required [RFC6585]

Trait Implementations

impl Clone for StatusCode

fn clone(&self) -> StatusCode

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for StatusCode

impl PartialEq for StatusCode

fn eq(&self, other: &StatusCode) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &StatusCode) -> bool

This method tests for !=.

impl Eq for StatusCode

impl PartialOrd for StatusCode

fn partial_cmp(&self, other: &StatusCode) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &StatusCode) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &StatusCode) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &StatusCode) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &StatusCode) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Ord for StatusCode

fn cmp(&self, other: &StatusCode) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl Hash for StatusCode

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where     H: Hasher,

Feeds a slice of this type into the given [Hasher].

impl Debug for StatusCode

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Display for StatusCode

Formats the status code, including the canonical reason.

Example

assert_eq!(format!("{}", StatusCode::OK), "200 OK");

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Default for StatusCode

fn default() -> StatusCode

Returns the "default value" for a type.

impl PartialEq<u16> for StatusCode

fn eq(&self, other: &u16) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialEq<StatusCode> for u16

fn eq(&self, other: &StatusCode) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl From<StatusCode> for u16

fn from(status: StatusCode) -> u16

Performs the conversion.

impl FromStr for StatusCode

type Err = InvalidStatusCode

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<StatusCode, InvalidStatusCode>

Parses a string s to return a value of this type.

impl<'a> HttpTryFrom<&'a [u8]> for StatusCode

type Error = InvalidStatusCode

Associated error with the conversion this implementation represents.

fn try_from(t: &'a [u8]) -> Result<Self, Self::Error>

impl<'a> HttpTryFrom<&'a str> for StatusCode

type Error = InvalidStatusCode

Associated error with the conversion this implementation represents.

fn try_from(t: &'a str) -> Result<Self, Self::Error>

impl HttpTryFrom<u16> for StatusCode

type Error = InvalidStatusCode

Associated error with the conversion this implementation represents.

fn try_from(t: u16) -> Result<Self, Self::Error>

impl HttpTryFrom<StatusCode> for StatusCode

type Error = Error

Associated error with the conversion this implementation represents.

fn try_from(t: Self) -> Result<Self, Self::Error>