Files
rs/examples/custom_http_client.rs
zeekay 86788566d1 datastore: rebrand the Rust client and speak the Datastore wire protocol
Cut from the upstream v0.13.3 release tag (not HEAD) so this is a pure
rename with no behaviour change. v0.13.3 is what our consumers already
resolve to: insights/rust's Cargo.lock pins clickhouse 0.13.3 and its
manifest already declares `datastore` at 0.13.x.

The load-bearing change is the HTTP auth header rename. The Datastore
server reads only X-Datastore-User / X-Datastore-Key; the upstream names
return `401 Code: 194 Authentication failed`. Every un-renamed HTTP
client is therefore unable to authenticate at all — this is a
correctness fix, not branding.

- crate `clickhouse` -> `datastore`, `clickhouse-derive` -> `datastore-derive`;
  versions preserved exactly (0.13.3 / 0.2.0).
- derive macro emits `datastore::Row` in lockstep, so downstream
  `#[derive(Row)]` keeps resolving.
- User-Agent reports `datastore-rs/{version}`.
- test-harness env vars CLICKHOUSE_* -> DATASTORE_*; compose uses
  ghcr.io/hanzoai/datastore with /etc/datastore-server config paths.
- doc links point at docs.hanzo.ai/datastore.
- `publish = false`: the `datastore` name on crates.io belongs to an
  unrelated crate, so consume this by git tag, never by version range.

CHANGELOG is truncated to a fork notice rather than find-replaced —
rewriting upstream release history would manufacture changes Datastore
never shipped. References to upstream issues keep their numbers.
2026-07-26 11:30:32 -07:00

31 lines
1.1 KiB
Rust

use std::time::Duration;
use hyper_util::client::legacy::connect::HttpConnector;
use hyper_util::client::legacy::Client as HyperClient;
use hyper_util::rt::TokioExecutor;
use datastore::{error::Result, Client};
#[tokio::main]
async fn main() -> Result<()> {
let connector = HttpConnector::new(); // or HttpsConnectorBuilder
let hyper_client = HyperClient::builder(TokioExecutor::new())
// For how long keep a particular idle socket alive on the client side (in milliseconds).
// It is supposed to be a fair bit less that the Datastore server KeepAlive timeout,
// which was by default 3 seconds for pre-23.11 versions, and 10 seconds after that.
.pool_idle_timeout(Duration::from_millis(2_500))
// Sets the maximum idle Keep-Alive connections allowed in the pool.
.pool_max_idle_per_host(4)
.build(connector);
let client = Client::with_http_client(hyper_client).with_url("http://localhost:8123");
let numbers = client
.query("SELECT number FROM system.numbers LIMIT 1")
.fetch_all::<u64>()
.await?;
println!("Numbers: {numbers:?}");
Ok(())
}