Crate http_relay 

A Rust implementation of some of Http relay spec.

Feature Flags

• server (default): HTTP server with axum. Enables HttpRelay and HttpRelayBuilder.
• persist (default): SQLite persistence. Without this, uses in-memory HashMap storage.
• link-compat: Legacy /link/{id} endpoints (deprecated, requires server).

Library-only Usage

Without the server feature, you can use the core types directly:

use http_relay::{EntryRepository, WaitingList, Message};

Structs

EntryRepository

Repository for persisting relay entries to SQLite.

HttpRelay

An implementation of some of Http relay spec.

HttpRelayBuilder

Builder for HttpRelay.

Message

Payload stored in the waiting list, cloned to multiple subscribers on delivery.

StoredEntry

A stored entry retrieved from the repository.

WaitingList

Coordination layer for pub-sub message delivery.

Enums

GetOrSubscribeResult

Result of get_or_subscribe operation.

SubscribeError

Error returned when subscribing to a waiting list entry fails.