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//! HTTP query and mutation support with caching.
//!
//! This module provides subscription-based HTTP queries and command-based mutations,
//! similar to SWR or TanStack Query.
//!
//! # Features
//!
//! - **Queries**: Subscription-based data fetching with automatic caching and refetching
//! - **Mutations**: Command-based data modifications (POST, PUT, DELETE, etc.)
//! - **Cache management**: Automatic cache invalidation and updates
//!
//! # Example
//!
//! ```rust,ignore
//! use tears::prelude::*;
//! use tears::subscription::http::{Query, QueryClient, Mutation};
//! use std::sync::Arc;
//!
//! struct App {
//! query_client: Arc<QueryClient>,
//! user_state: QueryState<User>,
//! }
//!
//! impl Application for App {
//! fn subscriptions(&self) -> Vec<Subscription<Message>> {
//! vec![
//! Subscription::new(Query::new(
//! "user-123",
//! || Box::pin(fetch_user()),
//! self.query_client.clone(),
//! ))
//! .map(Message::UserQuery)
//! ]
//! }
//!
//! fn update(&mut self, msg: Message) -> Command<Message> {
//! match msg {
//! Message::UserQuery(result) => {
//! self.user_state = result.state;
//! Command::none()
//! }
//! Message::UpdateUser(data) => {
//! Mutation::mutate(data, update_user_api)
//! .map(|result| match result {
//! Ok(user) => Message::UserUpdated(user),
//! Err(e) => Message::UpdateFailed(e.to_string()),
//! })
//! }
//! Message::UserUpdated(_) => {
//! self.query_client.invalidate("user-123")
//! }
//! }
//! }
//! }
//! ```
// Re-export main types
pub use QueryConfig;
pub use ;
pub use ;