Struct ConnectionInner 

pub struct ConnectionInner {

    pub http_client: Client,
    pub url: String,
    pub session_id: String,
    pub headers: IndexMap<String, String>,
    pub extra_headers: RwLock<IndexMap<String, String>>,
    pub backoff_current_interval: Duration,
    pub backoff_initial_interval: Duration,
    pub backoff_randomization_factor: f64,
    pub backoff_multiplier: f64,
    pub backoff_max_interval: Duration,
    pub backoff_max_elapsed_time: Duration,
    pub call_timeout: Duration,
    pub initialize_result: InitializeResult,
    /* private fields */
}

The actual connection state. Behind an Arc inside Connection.

Fields are public for read-only access (callers reach them via Connection’s Deref), but every method on this type is private — the public surface lives on Connection and delegates through.

Fields

http_client: Client

url: String

session_id: String

headers: IndexMap<String, String>

All HTTP headers stamped on every POST / GET this connection makes — the same merged map (defaults + caller overrides) the Client built once during connect. Mcp-Session-Id, Content-Type, and Accept are still set by the request builders and override anything in headers.

extra_headers: RwLock<IndexMap<String, String>>

Mutable per-request override layer stamped AFTER headers on every outbound HTTP request. The request-builder uses reqwest::header::HeaderMap::insert semantics so any key present in extra_headers REPLACES the same key in headers. Used by the proxy to inject session-global headers (X-OBJECTIVEAI-RESPONSE-ID etc.) that override per-URL values without re-dialing. Empty by default; set via Connection::set_extra_headers.

backoff_current_interval: Duration

backoff_initial_interval: Duration

backoff_randomization_factor: f64

backoff_multiplier: f64

backoff_max_interval: Duration

backoff_max_elapsed_time: Duration

call_timeout: Duration

initialize_result: InitializeResult

The server’s capabilities and info from the initialize response.

Trait Implementations

impl Debug for ConnectionInner

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

Formats the value using the given formatter.