pub enum Range {
    Bytes(Vec<ByteRangeSpec, Global>),
    Unregistered(StringString),
}
Expand description

Range header, defined in RFC 7233 §3.1

The “Range” header field on a GET request modifies the method semantics to request transfer of only one or more sub-ranges of the selected representation data, rather than the entire selected representation data.

ABNF

Range = byte-ranges-specifier / other-ranges-specifier
other-ranges-specifier = other-range-unit "=" other-range-set
other-range-set = 1*VCHAR

bytes-unit = "bytes"

byte-ranges-specifier = bytes-unit "=" byte-range-set
byte-range-set = 1#(byte-range-spec / suffix-byte-range-spec)
byte-range-spec = first-byte-pos "-" [last-byte-pos]
suffix-byte-range-spec = "-" suffix-length
suffix-length = 1*DIGIT
first-byte-pos = 1*DIGIT
last-byte-pos = 1*DIGIT

Example Values

  • bytes=1000-
  • bytes=-50
  • bytes=0-1,30-40
  • bytes=0-10,20-90,-100
  • custom_unit=0-123
  • custom_unit=xxx-yyy

Examples

use actix_web::http::header::{Range, ByteRangeSpec};
use actix_web::HttpResponse;

let mut builder = HttpResponse::Ok();
builder.insert_header(Range::Bytes(
    vec![ByteRangeSpec::FromTo(1, 100), ByteRangeSpec::From(200)]
));
builder.insert_header(Range::Unregistered("letters".to_owned(), "a-f".to_owned()));
builder.insert_header(Range::bytes(1, 100));
builder.insert_header(Range::bytes_multi(vec![(1, 100), (200, 300)]));

Variants

Bytes(Vec<ByteRangeSpec, Global>)

Byte range.

Unregistered(StringString)

Custom range, with unit not registered at IANA.

(other-range-unit: String , other-range-set: String)

Implementations

Constructs a common byte range header.

Eg: bytes=from-to

Constructs a byte range header with multiple subranges.

Eg: bytes=from1-to1,from2-to2,fromX-toX

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Formats the value using the given formatter. Read more

The associated error which can be returned from parsing.

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

Returns the name of the header field.

Parse the header from a HTTP message.

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

This method tests for !=.

The type returned in the event of a conversion error.

Try to convert value to a HeaderValue.

Auto Trait Implementations

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Causes self to use its Pointer implementation when Debug-formatted. Read more

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Calls .tap() only in debug builds, and is erased in release builds.

Calls .tap_mut() only in debug builds, and is erased in release builds. Read more

Calls .tap_borrow() only in debug builds, and is erased in release builds. Read more

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds. Read more

Calls .tap_ref() only in debug builds, and is erased in release builds. Read more

Calls .tap_ref_mut() only in debug builds, and is erased in release builds. Read more

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Calls .tap_deref_mut() only in debug builds, and is erased in release builds. Read more

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