> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kinetica.com/llms.txt
> Use this file to discover all available pages before exploring further.

# RequestHeaders

> RequestHeaders — Kinetica Rust API

[gpudb\_api](https://docs.kinetica.com/content/api/rust/index.md)::<wbr />[hyper\_client](https://docs.kinetica.com/content/api/rust/hyper_client/index.md)
[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/hyper_client.rs#L1102-L1113)&#x20;

<pre>`pub struct RequestHeaders {    pub user: Vec<(String, String)>,    pub session: Option<String>,    pub ha_sync_mode: Option<String>,    pub authorization: Option<String>,}`</pre>

The headers sent with a request besides its content type.

Fields
`user: Vec<(String, String)>`

The caller’s headers, the `User-Agent` among them.

`session: Option<String>`

The connection’s session ID, sent as `X-Kinetica-Session`: SQL `#name` temp tables belong to the session that creates them.

`ha_sync_mode: Option<String>`

The HA synchronicity mode, sent as `X-Kinetica-Group` when it is not the default.

`authorization: Option<String>`

The `Authorization` header, if any; see [`authorization_header`](https://docs.kinetica.com/content/api/rust/hyper_client/fn.authorization_header).

## Trait Implementations

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/hyper_client.rs#L1101)
impl [Clone](https://doc.rust-lang.org/1.98.1/core/clone/trait.Clone.html) for [RequestHeaders](https://docs.kinetica.com/content/api/rust/hyper_client/struct.RequestHeaders.md)

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/hyper_client.rs#L1101)
fn [clone](https://doc.rust-lang.org/1.98.1/core/clone/trait.Clone.html#tymethod.clone)(\&self) -> [RequestHeaders](https://docs.kinetica.com/content/api/rust/hyper_client/struct.RequestHeaders.md)

Returns a duplicate of the value. [Read more](https://doc.rust-lang.org/1.98.1/core/clone/trait.Clone.html#tymethod.clone)

1.0.0 (const: [unstable](https://github.com/rust-lang/rust/issues/142757)) · [Source](https://doc.rust-lang.org/1.98.1/src/core/clone.rs.html#245-247)
fn [clone\_from](https://doc.rust-lang.org/1.98.1/core/clone/trait.Clone.html#method.clone_from)(\&mut self, source: \&Self)

Performs copy-assignment from `source`. [Read more](https://doc.rust-lang.org/1.98.1/core/clone/trait.Clone.html#method.clone_from)

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/hyper_client.rs#L1101)
impl [Debug](https://doc.rust-lang.org/1.98.1/core/fmt/trait.Debug.html) for [RequestHeaders](https://docs.kinetica.com/content/api/rust/hyper_client/struct.RequestHeaders.md)

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/hyper_client.rs#L1101)
fn [fmt](https://doc.rust-lang.org/1.98.1/core/fmt/trait.Debug.html#tymethod.fmt)(\&self, f: \&mut [Formatter](https://doc.rust-lang.org/1.98.1/core/fmt/struct.Formatter.html)\<'\_>) -> [Result](https://doc.rust-lang.org/1.98.1/core/fmt/type.Result.html)

Formats the value using the given formatter. [Read more](https://doc.rust-lang.org/1.98.1/core/fmt/trait.Debug.html#tymethod.fmt)

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/hyper_client.rs#L1101)
impl [Default](https://doc.rust-lang.org/1.98.1/core/default/trait.Default.html) for [RequestHeaders](https://docs.kinetica.com/content/api/rust/hyper_client/struct.RequestHeaders.md)

[Source](https://github.com/kineticadb/kinetica-api-rust/blob/master/crates/gpudb-api/src/hyper_client.rs#L1101)
fn [default](https://doc.rust-lang.org/1.98.1/core/default/trait.Default.html#tymethod.default)() -> [RequestHeaders](https://docs.kinetica.com/content/api/rust/hyper_client/struct.RequestHeaders.md)

Returns the “default value” for a type. [Read more](https://doc.rust-lang.org/1.98.1/core/default/trait.Default.html#tymethod.default)


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