fix(standard-server): settle sendStandardResponse when client disconnects before sending

[dinwwwh]

Fixes #1735

handle() hung forever when the client disconnected while the procedure was still running, because the response's 'close' event had already fired before sendStandardResponse() started listening for it.

Now:

• sendStandardResponse (node, fastify, aws-lambda) settles immediately when the response is already ended and destroys the prepared body so event iterators are cleaned up.
• toAbortSignal aborts immediately when the response is already closed, including http/2 client cancels.
• Both detect an ended response via the new isNodeResponseStreamEnded util, which also handles Http2ServerResponse (it hides its stream state at runtime).

Verified with real http/1 and http/2 servers: aborted requests now resolve instead of hanging.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
orpc	Ready	Preview, Comment	Jul 27, 2026 1:02pm

[pkg-pr-new]

More templates

• @orpc/astro-playground
• @orpc/browser-extension-playground
• @orpc/bun-websocket-otel-playground
• @orpc/cloudflare-worker-playground
• @orpc/contract-first-playground
• @orpc/electron-playground
• @orpc/nest-playground
• @orpc/next-playground
• @orpc/nuxt-playground
• @orpc/solid-start-playground
• @orpc/svelte-kit-playground
• @orpc/tanstack-start-playground

@orpc/ai-sdk

npm i https://pkg.pr.new/@orpc/ai-sdk@1738

@orpc/arktype

npm i https://pkg.pr.new/@orpc/arktype@1738

@orpc/client

npm i https://pkg.pr.new/@orpc/client@1738

@orpc/contract

npm i https://pkg.pr.new/@orpc/contract@1738

@orpc/experimental-durable-iterator

npm i https://pkg.pr.new/@orpc/experimental-durable-iterator@1738

@orpc/hey-api

npm i https://pkg.pr.new/@orpc/hey-api@1738

@orpc/interop

npm i https://pkg.pr.new/@orpc/interop@1738

@orpc/json-schema

npm i https://pkg.pr.new/@orpc/json-schema@1738

@orpc/nest

npm i https://pkg.pr.new/@orpc/nest@1738

@orpc/openapi

npm i https://pkg.pr.new/@orpc/openapi@1738

@orpc/openapi-client

npm i https://pkg.pr.new/@orpc/openapi-client@1738

@orpc/otel

npm i https://pkg.pr.new/@orpc/otel@1738

@orpc/experimental-pino

npm i https://pkg.pr.new/@orpc/experimental-pino@1738

@orpc/experimental-publisher

npm i https://pkg.pr.new/@orpc/experimental-publisher@1738

@orpc/experimental-publisher-durable-object

npm i https://pkg.pr.new/@orpc/experimental-publisher-durable-object@1738

@orpc/experimental-ratelimit

npm i https://pkg.pr.new/@orpc/experimental-ratelimit@1738

@orpc/react

npm i https://pkg.pr.new/@orpc/react@1738

@orpc/react-query

npm i https://pkg.pr.new/@orpc/react-query@1738

@orpc/experimental-react-swr

npm i https://pkg.pr.new/@orpc/experimental-react-swr@1738

@orpc/server

npm i https://pkg.pr.new/@orpc/server@1738

@orpc/shared

npm i https://pkg.pr.new/@orpc/shared@1738

@orpc/solid-query

npm i https://pkg.pr.new/@orpc/solid-query@1738

@orpc/standard-server

npm i https://pkg.pr.new/@orpc/standard-server@1738

@orpc/standard-server-aws-lambda

npm i https://pkg.pr.new/@orpc/standard-server-aws-lambda@1738

@orpc/standard-server-fastify

npm i https://pkg.pr.new/@orpc/standard-server-fastify@1738

@orpc/standard-server-fetch

npm i https://pkg.pr.new/@orpc/standard-server-fetch@1738

@orpc/standard-server-node

npm i https://pkg.pr.new/@orpc/standard-server-node@1738

@orpc/standard-server-peer

npm i https://pkg.pr.new/@orpc/standard-server-peer@1738

@orpc/svelte-query

npm i https://pkg.pr.new/@orpc/svelte-query@1738

@orpc/tanstack-query

npm i https://pkg.pr.new/@orpc/tanstack-query@1738

@orpc/trpc

npm i https://pkg.pr.new/@orpc/trpc@1738

@orpc/valibot

npm i https://pkg.pr.new/@orpc/valibot@1738

@orpc/vue-colada

npm i https://pkg.pr.new/@orpc/vue-colada@1738

@orpc/vue-query

npm i https://pkg.pr.new/@orpc/vue-query@1738

@orpc/zod

npm i https://pkg.pr.new/@orpc/zod@1738

commit: 06a9b09

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

[pullfrog]

✅ No new issues found.

Reviewed changes — fixes an event-race bug where sendStandardResponse never settles when the client disconnects before sending, blocking cleanup and logging after handle().

• Add isNodeResponseStreamEnded utility — detects whether a writable response stream can no longer be written to (closed || destroyed || writableFinished). For Http2ServerResponse, reads flags from the underlying Http2Stream because the compat API does not expose them at runtime.
• Early-return in sendStandardResponse (node, fastify, aws-lambda) — checks end-of-stream at entry and settles immediately, destroying the body stream so generator finally blocks still run. Rejects with errored when set, resolves otherwise.
• Fix toAbortSignal for already-closed streams — same early-check pattern with writableEnded && writableFinished guard for http2 compat, where writableFinished alone would report as finished even on abnormal close.
• Export utils from @orpc/standard-server-node

  ^{｜ View workflow run ｜ Using DeepSeek Pro (free via Pullfrog for OSS) ｜ 𝕏}

[pullfrog]

✅ No new issues found.

Reviewed changes — two incremental improvements since the prior review: added the missing errored-case test for the Fastify adapter, and inlined the isFinishedWriting helper in toAbortSignal.

• Add rejects when response was destroyed with an error test for Fastify — fills the coverage gap; the node and aws-lambda adapters already had this test.
• Inline isFinishedWriting in toAbortSignal — replaces the extracted function with inline !stream.writableFinished || !stream.writableEnded, which is De Morgan equivalent. Removes the http2 compat comment since the intent is clear from the condition itself.

  ^{｜ View workflow run ｜ Using DeepSeek Pro (free via Pullfrog for OSS) ｜ 𝕏}

[pullfrog]

✅ No new issues found.

Reviewed change — one additional test in the Fastify adapter to match existing coverage in the node and aws-lambda adapters.

• Add resolves when body is not a stream test for Fastify — covers the already-closed path with a plain object body (no stream cleanup needed). Matches the equivalent tests already present for node and aws-lambda.

  ^{｜ View workflow run ｜ Using DeepSeek Pro (free via Pullfrog for OSS) ｜ 𝕏}