Struct ContentType

pub struct ContentType(pub MediaType);

Representation of HTTP Content-Types.

Usage

ContentTypes should rarely be created directly. Instead, an associated constant should be used; one is declared for most commonly used content types.

Example

A Content-Type of text/html; charset=utf-8 can be instantiated via the HTML constant:

use rocket::http::ContentType;

let html = ContentType::HTML;

Header

ContentType implements Into<Header>. As such, it can be used in any context where an Into<Header> is expected:

use rocket::http::ContentType;
use rocket::response::Response;

let response = Response::build().header(ContentType::HTML).finalize();

Tuple Fields

0: MediaType

Implementations

impl ContentType

pub const Any: ContentType

Content Type for any media type: */*

pub const Binary: ContentType

Content Type for binary data: application/octet-stream

pub const Bytes: ContentType

Content Type for binary data: application/octet-stream

pub const HTML: ContentType

Content Type for HTML: text/html; charset=utf-8

pub const Plain: ContentType

Content Type for plain text: text/plain; charset=utf-8

pub const Text: ContentType

Content Type for plain text: text/plain; charset=utf-8

pub const JSON: ContentType

Content Type for JSON: application/json

pub const MsgPack: ContentType

Content Type for MsgPack: application/msgpack

pub const Form: ContentType

Content Type for forms: application/x-www-form-urlencoded

pub const JavaScript: ContentType

Content Type for JavaScript: text/javascript

pub const CSS: ContentType

Content Type for CSS: text/css; charset=utf-8

pub const FormData: ContentType

Content Type for multipart form data: multipart/form-data

pub const XML: ContentType

Content Type for XML: text/xml; charset=utf-8

pub const OPF: ContentType

Content Type for OPF: application/oebps-package+xml

pub const XHTML: ContentType

Content Type for XHTML: application/xhtml+xml

pub const CSV: ContentType

Content Type for CSV: text/csv; charset=utf-8

pub const PNG: ContentType

Content Type for PNG: image/png

pub const GIF: ContentType

Content Type for GIF: image/gif

pub const BMP: ContentType

Content Type for BMP: image/bmp

pub const JPEG: ContentType

Content Type for JPEG: image/jpeg

pub const WEBP: ContentType

Content Type for WEBP: image/webp

pub const AVIF: ContentType

Content Type for AVIF: image/avif

pub const SVG: ContentType

Content Type for SVG: image/svg+xml

pub const Icon: ContentType

Content Type for Icon: image/x-icon

pub const WEBM: ContentType

Content Type for WEBM: video/webm

pub const WEBA: ContentType

Content Type for WEBM Audio: audio/webm

pub const OGG: ContentType

Content Type for OGG Video: video/ogg

pub const FLAC: ContentType

Content Type for FLAC: audio/flac

pub const WAV: ContentType

Content Type for WAV: audio/wav

pub const PDF: ContentType

Content Type for PDF: application/pdf

pub const TTF: ContentType

Content Type for TTF: application/font-sfnt

pub const OTF: ContentType

Content Type for OTF: application/font-sfnt

pub const WOFF: ContentType

Content Type for WOFF: application/font-woff

pub const WOFF2: ContentType

Content Type for WOFF2: font/woff2

pub const JsonApi: ContentType

Content Type for JSON API: application/vnd.api+json

pub const WASM: ContentType

Content Type for WASM: application/wasm

pub const TIFF: ContentType

Content Type for TIFF: image/tiff

pub const AAC: ContentType

Content Type for AAC Audio: audio/aac

pub const Calendar: ContentType

Content Type for iCalendar: text/calendar

pub const MPEG: ContentType

Content Type for MPEG Video: video/mpeg

pub const TAR: ContentType

Content Type for tape archive: application/x-tar

pub const GZIP: ContentType

Content Type for gzipped binary: application/gzip

pub const MOV: ContentType

Content Type for quicktime video: video/quicktime

pub const MP3: ContentType

Content Type for MPEG Audio: audio/mpeg

pub const MP4: ContentType

Content Type for MPEG4 Video: video/mp4

pub const ZIP: ContentType

Content Type for ZIP archive: application/zip

pub const CBZ: ContentType

Content Type for Comic ZIP archive: application/vnd.comicbook+zip

pub const CBR: ContentType

Content Type for Comic RAR compressed archive: application/vnd.comicbook-rar

pub const RAR: ContentType

Content Type for RAR compressed archive: application/vnd.rar

pub const EPUB: ContentType

Content Type for EPUB: application/epub+zip

pub const EventStream: ContentType

Content Type for SSE stream: text/event-stream

pub const Markdown: ContentType

Content Type for markdown text: text/markdown; charset=utf-8

pub const EXE: ContentType

Content Type for executable: application/vnd.microsoft.portable-executable

pub fn new<T, S>(top: T, sub: S) -> ContentType

where T: Into<Cow<'static, str>>, S: Into<Cow<'static, str>>,

Creates a new ContentType with top-level type top and subtype sub. This should only be used to construct uncommon or custom content types. Use an associated constant for everything else.

Example

Create a custom application/x-person content type:

use rocket::http::ContentType;

let custom = ContentType::new("application", "x-person");
assert_eq!(custom.top(), "application");
assert_eq!(custom.sub(), "x-person");

pub fn parse_flexible(name: &str) -> Option<ContentType>

Flexibly parses name into a ContentType. The parse is flexible because, in addition to strictly correct content types, it recognizes the following shorthands:

• any - ContentType::Any
• binary - ContentType::Binary
• bytes - ContentType::Bytes
• html - ContentType::HTML
• plain - ContentType::Plain
• text - ContentType::Text
• json - ContentType::JSON
• msgpack - ContentType::MsgPack
• form - ContentType::Form
• js - ContentType::JavaScript
• css - ContentType::CSS
• multipart - ContentType::FormData
• xml - ContentType::XML
• pdf - ContentType::PDF
• markdown - ContentType::Markdown
• md - ContentType::Markdown

For regular parsing, use ContentType::from_str().

Example

Using a shorthand:

use rocket::http::ContentType;

let html = ContentType::parse_flexible("html");
assert_eq!(html, Some(ContentType::HTML));

let json = ContentType::parse_flexible("json");
assert_eq!(json, Some(ContentType::JSON));

Using the full content-type:

use rocket::http::ContentType;

let html = ContentType::parse_flexible("text/html; charset=utf-8");
assert_eq!(html, Some(ContentType::HTML));

let json = ContentType::parse_flexible("application/json");
assert_eq!(json, Some(ContentType::JSON));

let custom = ContentType::parse_flexible("application/x+custom");
assert_eq!(custom, Some(ContentType::new("application", "x+custom")));

An unrecognized content-type:

use rocket::http::ContentType;

let foo = ContentType::parse_flexible("foo");
assert_eq!(foo, None);

let bar = ContentType::parse_flexible("foo/bar/baz");
assert_eq!(bar, None);

pub fn from_extension(ext: &str) -> Option<ContentType>

Returns the Content-Type associated with the extension ext.

Extensions are matched case-insensitively. Not all extensions are recognized. If an extensions is not recognized, None is returned. The currently recognized extensions are:

• txt - ContentType::Plain
• html - ContentType::HTML
• htm - ContentType::HTML
• xml - ContentType::XML
• opf - ContentType::OPF
• xhtml - ContentType::XHTML
• csv - ContentType::CSV
• js - ContentType::JavaScript
• mjs - ContentType::JavaScript
• css - ContentType::CSS
• json - ContentType::JSON
• png - ContentType::PNG
• gif - ContentType::GIF
• bmp - ContentType::BMP
• jpeg - ContentType::JPEG
• jpg - ContentType::JPEG
• webp - ContentType::WEBP
• avif - ContentType::AVIF
• svg - ContentType::SVG
• ico - ContentType::Icon
• flac - ContentType::FLAC
• wav - ContentType::WAV
• webm - ContentType::WEBM
• weba - ContentType::WEBA
• ogg - ContentType::OGG
• ogv - ContentType::OGG
• pdf - ContentType::PDF
• ttf - ContentType::TTF
• otf - ContentType::OTF
• woff - ContentType::WOFF
• woff2 - ContentType::WOFF2
• mp3 - ContentType::MP3
• mp4 - ContentType::MP4
• mpeg4 - ContentType::MP4
• wasm - ContentType::WASM
• aac - ContentType::AAC
• ics - ContentType::Calendar
• bin - ContentType::Binary
• iso - ContentType::Binary
• dmg - ContentType::Binary
• mpg - ContentType::MPEG
• mpeg - ContentType::MPEG
• tar - ContentType::TAR
• gz - ContentType::GZIP
• tif - ContentType::TIFF
• tiff - ContentType::TIFF
• mov - ContentType::MOV
• zip - ContentType::ZIP
• cbz - ContentType::CBZ
• cbr - ContentType::CBR
• rar - ContentType::RAR
• epub - ContentType::EPUB
• md - ContentType::Markdown
• markdown - ContentType::Markdown
• exe - ContentType::EXE

This list is likely to grow.

Example

Recognized content types:

use rocket::http::ContentType;

let xml = ContentType::from_extension("xml");
assert_eq!(xml, Some(ContentType::XML));

let xml = ContentType::from_extension("XML");
assert_eq!(xml, Some(ContentType::XML));

An unrecognized content type:

use rocket::http::ContentType;

let foo = ContentType::from_extension("foo");
assert!(foo.is_none());

pub fn with_params<K, V, P>(self, parameters: P) -> ContentType

where K: Into<Cow<'static, str>>, V: Into<Cow<'static, str>>, P: IntoIterator<Item = (K, V)>,

Sets the parameters parameters on self.

Example

Create a custom application/x-id; id=1 media type:

use rocket::http::ContentType;

let id = ContentType::new("application", "x-id").with_params([("id", "1")]);
assert_eq!(id.to_string(), "application/x-id; id=1".to_string());

Create a custom text/person; name=bob; weight=175 media type:

use rocket::http::ContentType;

let mt = ContentType::new("text", "person")
    .with_params([("name", "bob"), ("ref", "2382")]);

assert_eq!(mt.to_string(), "text/person; name=bob; ref=2382".to_string());

pub fn media_type(&self) -> &MediaType

Borrows the inner MediaType of self.

Example

use rocket::http::{ContentType, MediaType};

let http = ContentType::HTML;
let media_type = http.media_type();

pub fn extension(&self) -> Option<&UncasedStr>

Returns the most common file extension associated with the Content-Type self if it is known. Otherwise, returns None.

The currently recognized extensions are identical to those in ContentType::from_extension() with the most common extension being the first extension appearing in the list for a given Content-Type.

Example

Known extension:

use rocket::http::ContentType;

assert_eq!(ContentType::JSON.extension().unwrap(), "json");
assert_eq!(ContentType::JPEG.extension().unwrap(), "jpeg");
assert_eq!(ContentType::JPEG.extension().unwrap(), "JPEG");
assert_eq!(ContentType::PDF.extension().unwrap(), "pdf");

An unknown extension:

use rocket::http::ContentType;

let foo = ContentType::new("foo", "bar");
assert!(foo.extension().is_none());

Methods from Deref<Target = MediaType>

pub const Any: MediaType

pub const Binary: MediaType

pub const Bytes: MediaType

pub const HTML: MediaType

pub const Plain: MediaType

pub const Text: MediaType

pub const JSON: MediaType

pub const MsgPack: MediaType

pub const Form: MediaType

pub const JavaScript: MediaType

pub const CSS: MediaType

pub const FormData: MediaType

pub const XML: MediaType

pub const OPF: MediaType

pub const XHTML: MediaType

pub const CSV: MediaType

pub const PNG: MediaType

pub const GIF: MediaType

pub const BMP: MediaType

pub const JPEG: MediaType

pub const WEBP: MediaType

pub const AVIF: MediaType

pub const SVG: MediaType

pub const Icon: MediaType

pub const WEBM: MediaType

pub const WEBA: MediaType

pub const OGG: MediaType

pub const FLAC: MediaType

pub const WAV: MediaType

pub const PDF: MediaType

pub const TTF: MediaType

pub const OTF: MediaType

pub const WOFF: MediaType

pub const WOFF2: MediaType

pub const JsonApi: MediaType

pub const WASM: MediaType

pub const TIFF: MediaType

pub const AAC: MediaType

pub const Calendar: MediaType

pub const MPEG: MediaType

pub const TAR: MediaType

pub const GZIP: MediaType

pub const MOV: MediaType

pub const MP3: MediaType

pub const MP4: MediaType

pub const ZIP: MediaType

pub const CBZ: MediaType

pub const CBR: MediaType

pub const RAR: MediaType

pub const EPUB: MediaType

pub const EventStream: MediaType

pub const Markdown: MediaType

pub const EXE: MediaType

pub fn top(&self) -> &UncasedStr

Returns the top-level type for this media type. The return type, UncasedStr, has caseless equality comparison and hashing.

Example

use rocket::http::MediaType;

let plain = MediaType::Plain;
assert_eq!(plain.top(), "text");
assert_eq!(plain.top(), "TEXT");
assert_eq!(plain.top(), "Text");

pub fn sub(&self) -> &UncasedStr

Returns the subtype for this media type. The return type, UncasedStr, has caseless equality comparison and hashing.

Example

use rocket::http::MediaType;

let plain = MediaType::Plain;
assert_eq!(plain.sub(), "plain");
assert_eq!(plain.sub(), "PlaIN");
assert_eq!(plain.sub(), "pLaIn");

pub fn specificity(&self) -> u8

Returns a u8 representing how specific the top-level type and subtype of this media type are.

The return value is either 0, 1, or 2, where 2 is the most specific. A 0 is returned when both the top and sublevel types are *. A 1 is returned when only one of the top or sublevel types is *, and a 2 is returned when neither the top or sublevel types are *.

Example

use rocket::http::MediaType;

let mt = MediaType::Plain;
assert_eq!(mt.specificity(), 2);

let mt = MediaType::new("text", "*");
assert_eq!(mt.specificity(), 1);

let mt = MediaType::Any;
assert_eq!(mt.specificity(), 0);

pub fn exact_eq(&self, other: &MediaType) -> bool

Compares self with other and returns true if self and other are exactly equal to each other, including with respect to their parameters and their order.

This is different from the PartialEq implementation in that it considers parameters. In particular, Eq implies PartialEq but PartialEq does not imply Eq. That is, if PartialEq returns false, this function is guaranteed to return false. Similarly, if exact_eq returns true, PartialEq is guaranteed to return true. However, if PartialEq returns true, exact_eq function may or may not return true.

Example

use rocket::http::MediaType;

let plain = MediaType::Plain;
let plain2 = MediaType::new("text", "plain").with_params([("charset", "utf-8")]);
let just_plain = MediaType::new("text", "plain");

// The `PartialEq` implementation doesn't consider parameters.
assert!(plain == just_plain);
assert!(just_plain == plain2);
assert!(plain == plain2);

// While `exact_eq` does.
assert!(!plain.exact_eq(&just_plain));
assert!(!plain2.exact_eq(&just_plain));
assert!(plain.exact_eq(&plain2));

pub fn params(&self) -> impl Iterator<Item = (&UncasedStr, &str)>

Returns an iterator over the (key, value) pairs of the media type’s parameter list. The iterator will be empty if the media type has no parameters.

Example

The MediaType::Plain type has one parameter: charset=utf-8:

use rocket::http::MediaType;

let plain = MediaType::Plain;
let (key, val) = plain.params().next().unwrap();
assert_eq!(key, "charset");
assert_eq!(val, "utf-8");

The MediaType::PNG type has no parameters:

use rocket::http::MediaType;

let png = MediaType::PNG;
assert_eq!(png.params().count(), 0);

pub fn param<'a>(&'a self, name: &str) -> Option<&'a str>

Returns the first parameter with name name, if there is any.

pub fn extension(&self) -> Option<&UncasedStr>

Returns the most common file extension associated with the Media-Type self if it is known. Otherwise, returns None.

The currently recognized extensions are identical to those in MediaType::from_extension() with the most common extension being the first extension appearing in the list for a given Content-Type.

Example

Known extension:

use rocket::http::MediaType;

assert_eq!(MediaType::JSON.extension().unwrap(), "json");
assert_eq!(MediaType::JPEG.extension().unwrap(), "jpeg");
assert_eq!(MediaType::JPEG.extension().unwrap(), "JPEG");
assert_eq!(MediaType::PDF.extension().unwrap(), "pdf");

An unknown extension:

use rocket::http::MediaType;

let foo = MediaType::new("foo", "bar");
assert!(foo.extension().is_none());

pub fn is_known(&self) -> bool

Returns true if this MediaType is known to Rocket. In other words, returns true if there is an associated constant for self.

pub fn is_any(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::Any, i.e */*.

pub fn is_binary(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::Binary, i.e application/octet-stream.

pub fn is_bytes(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::Bytes, i.e application/octet-stream.

pub fn is_html(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::HTML, i.e text/html.

pub fn is_plain(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::Plain, i.e text/plain.

pub fn is_text(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::Text, i.e text/plain.

pub fn is_json(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::JSON, i.e application/json.

pub fn is_msgpack(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::MsgPack, i.e application/msgpack.

pub fn is_form(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::Form, i.e application/x-www-form-urlencoded.

pub fn is_javascript(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::JavaScript, i.e text/javascript.

pub fn is_css(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::CSS, i.e text/css.

pub fn is_form_data(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::FormData, i.e multipart/form-data.

pub fn is_xml(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::XML, i.e text/xml.

pub fn is_opf(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::OPF, i.e application/oebps-package+xml.

pub fn is_xhtml(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::XHTML, i.e application/xhtml+xml.

pub fn is_csv(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::CSV, i.e text/csv.

pub fn is_png(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::PNG, i.e image/png.

pub fn is_gif(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::GIF, i.e image/gif.

pub fn is_bmp(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::BMP, i.e image/bmp.

pub fn is_jpeg(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::JPEG, i.e image/jpeg.

pub fn is_webp(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::WEBP, i.e image/webp.

pub fn is_avif(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::AVIF, i.e image/avif.

pub fn is_svg(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::SVG, i.e image/svg+xml.

pub fn is_icon(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::Icon, i.e image/x-icon.

pub fn is_webm(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::WEBM, i.e video/webm.

pub fn is_weba(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::WEBA, i.e audio/webm.

pub fn is_ogg(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::OGG, i.e video/ogg.

pub fn is_flac(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::FLAC, i.e audio/flac.

pub fn is_wav(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::WAV, i.e audio/wav.

pub fn is_pdf(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::PDF, i.e application/pdf.

pub fn is_ttf(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::TTF, i.e application/font-sfnt.

pub fn is_otf(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::OTF, i.e application/font-sfnt.

pub fn is_woff(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::WOFF, i.e application/font-woff.

pub fn is_woff2(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::WOFF2, i.e font/woff2.

pub fn is_json_api(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::JsonApi, i.e application/vnd.api+json.

pub fn is_wasm(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::WASM, i.e application/wasm.

pub fn is_tiff(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::TIFF, i.e image/tiff.

pub fn is_aac(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::AAC, i.e audio/aac.

pub fn is_ical(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::Calendar, i.e text/calendar.

pub fn is_mpeg(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::MPEG, i.e video/mpeg.

pub fn is_tar(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::TAR, i.e application/x-tar.

pub fn is_gzip(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::GZIP, i.e application/gzip.

pub fn is_mov(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::MOV, i.e video/quicktime.

pub fn is_mp3(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::MP3, i.e audio/mpeg.

pub fn is_mp4(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::MP4, i.e video/mp4.

pub fn is_zip(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::ZIP, i.e application/zip.

pub fn is_cbz(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::CBZ, i.e application/vnd.comicbook+zip.

pub fn is_cbr(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::CBR, i.e application/vnd.comicbook-rar.

pub fn is_rar(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::RAR, i.e application/vnd.rar.

pub fn is_epub(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::EPUB, i.e application/epub+zip.

pub fn is_event_stream(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::EventStream, i.e text/event-stream.

pub fn is_markdown(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::Markdown, i.e text/markdown.

pub fn is_exe(&self) -> bool

Returns true if the top-level and sublevel types of self are the same as those of MediaType::EXE, i.e application/vnd.microsoft.portable-executable.

Trait Implementations

impl Clone for ContentType

fn clone(&self) -> ContentType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ContentType

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for ContentType

fn default() -> ContentType

Returns a ContentType of Any, or */*.

impl Deref for ContentType

type Target = MediaType

The resulting type after dereferencing.

fn deref(&self) -> &MediaType

Dereferences the value.

impl Display for ContentType

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the ContentType as an HTTP Content-Type value.

Example

use rocket::http::ContentType;

let ct = format!("{}", ContentType::JSON);
assert_eq!(ct, "application/json");

impl From<ContentType> for Header<'static>

Creates a new Header with name Content-Type and the value set to the HTTP rendering of this Content-Type.

fn from(content_type: ContentType) -> Header<'static>

Converts to this type from the input type.

impl From<MediaType> for ContentType

fn from(media_type: MediaType) -> ContentType

Converts to this type from the input type.

impl<'r> FromRequest<'r> for &'r ContentType

type Error = Infallible

The associated error to be returned if derivation fails.

fn from_request<'life0, 'async_trait>( request: &'r Request<'life0>, ) -> Pin<Box<dyn Future<Output = Outcome<Self, Infallible>> + Send + 'async_trait>>

where Self: 'async_trait, 'r: 'async_trait, 'life0: 'async_trait,

Derives an instance of Self from the incoming request metadata.

impl FromStr for ContentType

fn from_str(raw: &str) -> Result<ContentType, String>

Parses a ContentType from a given Content-Type header value.

Examples

Parsing an application/json:

use std::str::FromStr;
use rocket::http::ContentType;

let json = ContentType::from_str("application/json").unwrap();
assert!(json.is_known());
assert_eq!(json, ContentType::JSON);

Parsing a content type extension:

use std::str::FromStr;
use rocket::http::ContentType;

let custom = ContentType::from_str("application/x-custom").unwrap();
assert!(!custom.is_known());
assert_eq!(custom.top(), "application");
assert_eq!(custom.sub(), "x-custom");

Parsing an invalid Content-Type value:

use std::str::FromStr;
use rocket::http::ContentType;

let custom = ContentType::from_str("application//x-custom");
assert!(custom.is_err());

type Err = String

The associated error which can be returned from parsing.

impl Hash for ContentType

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

where __H: Hasher,

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ContentType

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ContentType

impl StructuralPartialEq for ContentType