c065e26d14
- Invert the transport layers so the pre-response retry is OUTERMOST and the
provider-HTTP instrumentation is INNER. Before, the retry lived inside
createStreamingFetch (under the instrumentation), so a reset the retry
recovered from logged only a clean "OK status=200" — the
"PRE-RESPONSE FAILED ... ECONNRESET ... idleSincePrevCall" signal went blind
exactly when the fix works, and AI_STREAM_KEEPALIVE_MS couldn't be tuned from
prod data. Now createStreamingFetch is the dispatcher-bound BASE (no retry) and
a new withPreResponseRetry() wraps it; ai.service composes
withPreResponseRetry(createInstrumentedFetch('AiService:provider-http',
createStreamingFetch())), so every attempt — including recovered resets — flows
through the instrumentation. (Also expresses the keepAlive-config vs retry-
behavior boundary structurally, per review #3.)
- Add the retry-exhaustion test: a server that resets EVERY connection, asserting
the call rejects with a retryable connection error AND exactly
PRE_RESPONSE_CONNECT_RETRIES + 1 (= 3) requests reached the server — pinning the
bound and that the final error propagates (guards an off-by-one / infinite loop
/ swallowed error). Existing happy-retry + abort tests moved onto
withPreResponseRetry.
Verified on the stand: a normal turn still streams (reasoning + finish) and the
provider-HTTP telemetry still logs. server tsc + ai/mcp specs green (30).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
A progressive Node.js framework for building efficient and scalable server-side applications.
Description
Nest framework TypeScript starter repository.
Installation
$ npm install
Running the app
# development
$ npm run start
# watch mode
$ npm run start:dev
# production mode
$ npm run start:prod
Migrations
# This creates a new empty migration file named 'init'
$ npm run migration:create --name=init
# Generates 'init' migration file from existing entities to update the database schema
$ npm run migration:generate --name=init
# Runs all pending migrations to update the database schema
$ npm run migration:run
# Reverts the last executed migration
$ npm run migration:revert
# Reverts all migrations
$ npm run migration:revert
# Shows the list of executed and pending migrations
$ npm run migration:show
## Test
```bash
# unit tests
$ npm run test
# e2e tests
$ npm run test:e2e
# test coverage
$ npm run test:cov
Support
Nest is an MIT-licensed open source project. It can grow thanks to the sponsors and support by the amazing backers. If you'd like to join them, please read more here.
Stay in touch
- Author - Kamil Myśliwiec
- Website - https://nestjs.com
- Twitter - @nestframework
License
Nest is MIT licensed.