Struct reqwest::header::Headers [] [src]

pub struct Headers { /* fields omitted */ }

A map of header fields on requests and responses.

Methods

impl Headers
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Creates a new, empty headers map.

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Set a header field to the corresponding value.

The field is determined by the type of the value being set.

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Access the raw value of a header.

Prefer to use the typed getters instead.

Example:

let raw_content_type = headers.get_raw("content-type");

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Set the raw value of a header, bypassing any typed headers.

Note: This will completely replace any current value for this header name.

Example:

headers.set_raw("content-length", vec![b"5".to_vec()]);

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Append a value to raw value of this header.

If a header already contains a value, this will add another line to it.

If a header doesnot exist for this name, a new one will be created with the value.

Example:

headers.append_raw("x-foo", b"bar".to_vec());
headers.append_raw("x-foo", b"quux".to_vec());

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Remove a header set by set_raw

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Get a reference to the header field's value, if it exists.

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Get a mutable reference to the header field's value, if it exists.

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Returns a boolean of whether a certain header is in the map.

Example:

let has_type = headers.has::<ContentType>();

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Removes a header from the map, if one existed. Returns true if a header has been removed.

Important traits for HeadersItems<'a>
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Returns an iterator over the header fields.

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Returns the number of headers in the map.

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Remove all headers from the map.

Trait Implementations

impl Display for Headers
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Formats the value using the given formatter. Read more

impl PartialEq<Headers> for Headers
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This method tests for self and other values to be equal, and is used by ==. Read more

1.0.0
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This method tests for !=.

impl<'a> Extend<HeaderView<'a>> for Headers
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Extends a collection with the contents of an iterator. Read more

impl Debug for Headers
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Formats the value using the given formatter. Read more

impl Clone for Headers
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Returns a copy of the value. Read more

1.0.0
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Performs copy-assignment from source. Read more

impl<'a> FromIterator<HeaderView<'a>> for Headers
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Creates a value from an iterator. Read more