feat(llm): 实现 OpenAI Response API Provider
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- 新增独立 OpenaiResponseProvider(POST /responses 协议),独立 feature provider-openai-response
- 覆盖文本对话/流式/Vision/Function Calling/多轮接续/结构化输出/内置工具逃生舱
- 内置工具(web_search/file_search)通过 extra 逃生舱透传
- 工厂注册 ProviderType::OpenaiResponse + src/llm 模块门控追加
- 新增 example response_api_demo + CI 矩阵新增组合 + README/roadmap 同步
- 测试覆盖:13 单元 + 15 wiremock(流式 + 非流式 + 错误路径)
- 文档:docs/28-phase28-openai-response-api-provider.md
This commit is contained in:
徐涛
2026-07-20 09:05:04 +08:00
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//! Required features: cargo run --example response_api_demo --features "full"
//!
//! 演示 OpenAI Response API`POST /responses`)的基本用法。
//!
//! 环境变量:
//! - `OPENAI_BASE_URL` — 默认 `https://api.openai.com/v1`
//! - `OPENAI_API_KEY` — 必填
//! - `OPENAI_MODEL` — 默认 `gpt-4o-mini`
//!
//! 本示例展示:
//! - 单轮对话 + 多轮接续(全量消息历史)
//! - 流式响应事件消费
//! - 工具调用(Function Calling)单轮演示
use std::env;
use agcore::llm::provider::{ProviderConfig, ProviderType, create_provider};
use agcore::llm::types::message::{ContentBlock, Message};
use agcore::llm::types::request_v2::MessageRequest;
#[tokio::main]
async fn main() {
let api_key = env::var("OPENAI_API_KEY").expect("未设置 OPENAI_API_KEY 环境变量");
let base_url =
env::var("OPENAI_BASE_URL").unwrap_or_else(|_| "https://api.openai.com/v1".to_string());
let model = env::var("OPENAI_MODEL").unwrap_or_else(|_| "gpt-4o-mini".to_string());
let provider = create_provider(
ProviderType::OpenaiResponse,
ProviderConfig {
base_url,
api_key,
model,
timeout_secs: 30,
max_retries: 3,
},
)
.expect("创建 OpenAI Response Provider 失败");
// ===== 单轮对话 =====
let request = MessageRequest {
model: String::new(),
messages: vec![
Message::system("你是一个简洁的助手,对任何问题都用一句话回答。"),
Message::user_text("Rust 的所有权机制是什么?"),
],
..Default::default()
};
match provider.chat(request).await {
Ok(resp) => {
println!("[单轮] {}", resp.text());
println!(
"用量: {} 输入 / {} 输出\n",
resp.usage.prompt_tokens, resp.usage.completion_tokens
);
}
Err(e) => {
eprintln!("[单轮] 请求失败: {e}");
}
}
// ===== 多轮接续(全量历史) =====
let request = MessageRequest {
model: String::new(),
messages: vec![
Message::user_text("knock knock."),
Message::Assistant {
content: vec![ContentBlock::Text {
text: "Who's there?".into(),
}],
},
Message::user_text("Orange."),
],
..Default::default()
};
match provider.chat(request).await {
Ok(resp) => println!("[多轮] {}", resp.text()),
Err(e) => eprintln!("[多轮] 请求失败: {e}"),
}
}