append_stream/
append_stream.rs

1// Copyright 2024 ScopeDB, Inc.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15mod common;
16
17#[tokio::main(flavor = "current_thread")]
18async fn main() -> Result<(), Box<dyn std::error::Error>> {
19    let client = common::client()?;
20    let table = common::write_table(&client)?;
21    let stream = table.append_stream().build()?;
22
23    let admitted = stream
24        .send_all([
25            serde_json::json!({
26                "id": 1,
27                "occurred_at": jiff::Timestamp::now(),
28                "name": "first",
29            }),
30            serde_json::json!({
31                "id": 2,
32                "occurred_at": jiff::Timestamp::now(),
33                "name": "second",
34            }),
35        ])
36        .await?;
37    println!("accepted locally: {} rows", admitted.accepted_rows);
38
39    // send_all() confirms only local admission. With the default strict policy,
40    // successful shutdown confirms at least one commit acknowledgement per row.
41    // Retrying an unknown outcome can insert duplicates.
42    let report = stream.shutdown().await?;
43    println!("committed remotely: {} rows", report.committed_rows);
44
45    Ok(())
46}
append_stream/append_stream.rs

append_stream/
append_stream.rs
