Files
triggerdotdev--trigger.dev/references
Eric Allam 5c66161ca7 feat(sdk,core): Session channel SDK toolkits + waitpoints — client side
Build the client-side half of the Session channel extensions that the
sessions PR shipped on the server. Pairs with POST
/api/v1/runs/:runFriendlyId/session-streams/wait and the
append-fires-waitpoints wiring on the session append handler.

Extend SessionHandle with two asymmetric channels mirroring the
run-scoped streams primitives:

- .in (SessionInputChannel) mirrors streams.input. on / once / peek /
  wait / waitWithIdleTimeout for the task to consume; send for
  external clients to produce. .wait / .waitWithIdleTimeout suspend
  the run on a session-stream waitpoint; it resumes when a record
  lands on .in, same semantics as streams.input.wait on a run-scoped
  input stream.
- .out (SessionOutputChannel) mirrors streams.define. append / pipe /
  writer for the task to produce records — all three route through
  SessionStreamInstance -> StreamsWriterV2 for uniform parsed-object
  serialization on the subscribe side. read returns an SSE subscription
  for external consumers.

The two channels are disjoint classes with zero overlapping methods.
SessionHandle is { id, in, out } so directional tags stay at every
call site. No public initialize() — S2 credentials are an internal
detail of pipe / writer.

Core
- StandardSessionStreamManager + sessionStreams global: SSE-backed
  tail with once/on/peek buffering, auto-reconnect, lastSeqNum
  resume. Keyed on {sessionId, io}. Registered in dev- and managed-
  run workers; taskExecutor clears handlers at run end alongside
  input streams.
- SessionStreamInstance: S2-only parallel of StreamInstance. Fetches
  session S2 creds via initializeSessionStream and pipes through
  StreamsWriterV2.
- ApiClient.createSessionStreamWaitpoint — calls the new server route.

Reference
- references/hello-world/src/trigger/sessionsSmoke.ts now exercises
  .out.writer alongside .out.append.
- references/hello-world/src/trigger/sessionsWaitSmoke.ts (new) —
  end-to-end waitpoint validation. Orchestrator suspends on
  .in.waitWithIdleTimeout; a delayed sender task fires the waitpoint
  via .in.send; orchestrator resumes with the payload. match: true.
2026-05-05 11:06:25 +01:00
..
2025-07-24 15:09:50 +01:00
2025-03-05 14:40:14 +00:00

Trigger.dev References

Contains code that tests or uses the @trigger.dev/* packages in some way, either by using them to test out a framework adapter, an integration, or parts of the main SDK.

All the dependencies to the @trigger.dev/* packages will be both referenced in the package.json dependencies as workspace:*, as well as using a direct path from the tsconfig.json file like so:

{
  "extends": "@trigger.dev/tsconfig/node18.json",
  "include": ["./src/**/*.ts"],
  "compilerOptions": {
    "baseUrl": ".",
    "lib": ["DOM", "DOM.Iterable"],
    "paths": {
      "@/*": ["./src/*"],
      "@trigger.dev/sdk": ["../../packages/trigger-sdk/src/index"],
      "@trigger.dev/sdk/*": ["../../packages/trigger-sdk/src/*"],
      "@trigger.dev/express": ["../../packages/express/src/index"],
      "@trigger.dev/express/*": ["../../packages/express/src/*"],
      "@trigger.dev/core": ["../../packages/core/src/index"],
      "@trigger.dev/core/*": ["../../packages/core/src/*"],
      "@trigger.dev/integration-kit": ["../../packages/integration-kit/src/index"],
      "@trigger.dev/integration-kit/*": ["../../packages/integration-kit/src/*"],
      "@trigger.dev/github": ["../../integrations/github/src/index"],
      "@trigger.dev/github/*": ["../../integrations/github/src/*"],
      "@trigger.dev/slack": ["../../integrations/slack/src/index"],
      "@trigger.dev/slack/*": ["../../integrations/slack/src/*"],
      "@trigger.dev/openai": ["../../integrations/openai/src/index"],
      "@trigger.dev/openai/*": ["../../integrations/openai/src/*"],
      "@trigger.dev/resend": ["../../integrations/resend/src/index"],
      "@trigger.dev/resend/*": ["../../integrations/resend/src/*"],
      "@trigger.dev/typeform": ["../../integrations/typeform/src/index"],
      "@trigger.dev/typeform/*": ["../../integrations/typeform/src/*"],
      "@trigger.dev/plain": ["../../integrations/plain/src/index"],
      "@trigger.dev/plain/*": ["../../integrations/plain/src/*"],
      "@trigger.dev/supabase": ["../../integrations/supabase/src/index"],
      "@trigger.dev/supabase/*": ["../../integrations/supabase/src/*"],
      "@trigger.dev/stripe": ["../../integrations/stripe/src/index"],
      "@trigger.dev/stripe/*": ["../../integrations/stripe/src/*"],
      "@trigger.dev/sendgrid": ["../../integrations/sendgrid/src/index"],
      "@trigger.dev/sendgrid/*": ["../../integrations/sendgrid/src/*"],
      "@trigger.dev/airtable": ["../../integrations/airtable/src/index"],
      "@trigger.dev/airtable/*": ["../../integrations/airtable/src/*"]
    }
  }
}

Creating a New Reference Project

This guide assumes that you have followed the Contributing.md instructions to set up a local trigger.dev instance. If not, please complete the setup before continuing.

Step-by-Step Instructions

  1. Run an HTTP tunnel: You will need to run an HTTP tunnel to expose your local webapp, it is required for some API calls during building the image to deploy on your local instance. This is optional if you do not plan to test deployment on your local instance.
  • Download the ngrok CLI. This can be done by following the instructions on ngrok's website.
  • Create an account on ngrok to obtain the authtoken and add it to the CLI.
ngrok config add-authtoken <your-auth-token>

Replace the with the token you obtain from ngrok.

  • Run the tunnel.
ngrok http <your-app-port>

Replace the with the webapp port, default is 3030.

  1. Add your tunnel URL to the env: After running the ngrok tunnel, you will see URL in your terminal, it will look something like https://<your-tunnel-address>.ngrok-free.app. Replace the APP_ORIGIN variable with this URL in your .env file in the root of the trigger.dev project.

  2. Run the webapp on localhost:

pnpm run dev --filter webapp --filter coordinator --filter docker-provider
  1. Build the CLI in a new terminal window:
# Build the CLI
pnpm run build --filter trigger.dev

# Make it accessible to `pnpm exec`
pnpm i
  1. Set up a new project in the webapp:
  • Open the webapp running on localhost:3030.
  • Create a new project in the webapp UI.
  • Go to the Project Settings page and copy the project reference id from there.
  1. Copy the hello-world project as a template:
cp -r references/hello-world references/<new-project>

Replace <new-project> with your desired project name.

  1. Update project details:
  • Open <new-project>/package.json and change the name field. (Tip: Use the same name as in the webapp to avoid confusion.)

  • Open <new-project>/trigger.config.ts and update the project field with the project reference you copied from the webapp.

  • Run pnpm i in your <new-project> directory to sync the dependencies.

  1. Authorize the CLI for your project:
pnpm exec trigger login -a http://localhost:3030 --profile local
  1. Run the new project: You can now run your project using the CLI with the following command:
pnpm exec trigger dev --profile local

You can also deploy them against your local instance with the following command:

pnpm exec trigger deploy --self-hosted --load-image --profile local