fix: null-safe request bodies; error on empty upstream streams - #1
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andomeder wants to merge 3 commits into
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fix: null-safe request bodies; error on empty upstream streams#1andomeder wants to merge 3 commits into
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📝 WalkthroughWalkthroughThe proxy now serializes empty collections as arrays, rejects oversized requests with HTTP 413, and validates upstream NDJSON responses before returning success. Invalid or empty upstream streams return HTTP 502. ChangesProxy validation and serialization
Estimated code review effort: 3 (Moderate) | ~25 minutes Merge Risk: 🟡 Moderate · up to The PR fixes null tool-call content serialization, but streaming responses can still treat malformed JSON values as successful events and return HTTP 200, causing clients to receive unusable results instead of a clear error. Merge should wait for event-shape validation; the related test should also use structured JSON assertions. Sequence Diagram(s)sequenceDiagram
participant Client
participant Proxy
participant Upstream
Client->>Proxy: Send request
Proxy->>Proxy: Check serialized request size
Proxy->>Upstream: Forward request when within limit
Upstream-->>Proxy: Return response stream
Proxy->>Proxy: Validate first non-whitespace NDJSON event
Proxy-->>Client: Return HTTP 502 for empty or invalid stream
Proxy-->>Client: Replay and stream valid response
Suggested reviewers: 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Inline comments:
In `@internal/proxy/config_test.go`:
- Around line 189-190: Replace the substring check in the config marshaling test
with structured JSON validation: decode raw into a typed config or
map[string]json.RawMessage, then assert that recentCommits is an empty array.
Preserve the test’s existing failure reporting while avoiding matches against
string values such as WorkingDir.
In `@internal/proxy/handler.go`:
- Around line 240-247: Update the first-event validation in the streaming
handler to decode the line into the upstream event envelope and require a
non-empty type field, rejecting null, empty objects, arrays, and other non-event
JSON values before assigning the remaining response body. Preserve the existing
invalid-response cleanup, logging, and Bad Gateway response behavior.
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📒 Files selected for processing (5)
internal/proxy/config.gointernal/proxy/config_test.gointernal/proxy/handler.gointernal/proxy/handler_test.gointernal/proxy/proxy.go
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Three fixes for Command Code gateway failures:
[](upstream 400 "expected array, received null")recentCommits: null)