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Add feature for optional request compression (#8767)

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Adds a new feature
`enable_request_compression` that will compress using zstd requests to
the codex-backend. Currently only enabled for codex-backend so only enabled for openai providers when using chatgpt::auth even when the feature is enabled

Added a new info log line too for evaluating the compression ratio and
overhead off compressing before requesting. You can enable with
`RUST_LOG=$RUST_LOG,codex_client::transport=info`

```
2026-01-06T00:09:48.272113Z  INFO codex_client::transport: Compressed request body with zstd pre_compression_bytes=28914 post_compression_bytes=11485 compression_duration_ms=0
```
This commit is contained in:
Channing Conger
2026-01-07 13:21:40 -08:00
committed by GitHub
parent a9b5e8a136
commit 21c6d40a44
19 changed files with 345 additions and 19 deletions
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13
codex-rs/codex-api/tests/clients.rs
View File

@@ -11,6 +11,7 @@ use codex_api::Provider;
use codex_api::ResponsesClient;
use codex_api::ResponsesOptions;
use codex_api::WireApi;
use codex_api::requests::responses::Compression;
use codex_client::HttpTransport;
use codex_client::Request;
use codex_client::Response;
@@ -229,7 +230,9 @@ async fn responses_client_uses_responses_path_for_responses_wire() -> Result<()>
let client = ResponsesClient::new(transport, provider("openai", WireApi::Responses), NoAuth);
let body = serde_json::json!({ "echo": true });
let _stream = client.stream(body, HeaderMap::new()).await?;
let _stream = client
.stream(body, HeaderMap::new(), Compression::None)
.await?;
let requests = state.take_stream_requests();
assert_path_ends_with(&requests, "/responses");
@@ -243,7 +246,9 @@ async fn responses_client_uses_chat_path_for_chat_wire() -> Result<()> {
let client = ResponsesClient::new(transport, provider("openai", WireApi::Chat), NoAuth);
let body = serde_json::json!({ "echo": true });
let _stream = client.stream(body, HeaderMap::new()).await?;
let _stream = client
.stream(body, HeaderMap::new(), Compression::None)
.await?;
let requests = state.take_stream_requests();
assert_path_ends_with(&requests, "/chat/completions");
@@ -258,7 +263,9 @@ async fn streaming_client_adds_auth_headers() -> Result<()> {
let client = ResponsesClient::new(transport, provider("openai", WireApi::Responses), auth);
let body = serde_json::json!({ "model": "gpt-test" });
let _stream = client.stream(body, HeaderMap::new()).await?;
let _stream = client
.stream(body, HeaderMap::new(), Compression::None)
.await?;
let requests = state.take_stream_requests();
assert_eq!(requests.len(), 1);

13
codex-rs/codex-api/tests/sse_end_to_end.rs
View File

@@ -9,6 +9,7 @@ use codex_api::Provider;
use codex_api::ResponseEvent;
use codex_api::ResponsesClient;
use codex_api::WireApi;
use codex_api::requests::responses::Compression;
use codex_client::HttpTransport;
use codex_client::Request;
use codex_client::Response;
@@ -124,7 +125,11 @@ async fn responses_stream_parses_items_and_completed_end_to_end() -> Result<()>
let client = ResponsesClient::new(transport, provider("openai", WireApi::Responses), NoAuth);
let mut stream = client
.stream(serde_json::json!({"echo": true}), HeaderMap::new())
.stream(
serde_json::json!({"echo": true}),
HeaderMap::new(),
Compression::None,
)
.await?;
let mut events = Vec::new();
@@ -189,7 +194,11 @@ async fn responses_stream_aggregates_output_text_deltas() -> Result<()> {
let client = ResponsesClient::new(transport, provider("openai", WireApi::Responses), NoAuth);
let stream = client
.stream(serde_json::json!({"echo": true}), HeaderMap::new())
.stream(
serde_json::json!({"echo": true}),
HeaderMap::new(),
Compression::None,
)
.await?;
let mut stream = stream.aggregate();