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BUILD_AND_TEST.md

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Build

Before building, make sure Docker is up and running.

$ pnpm install # first time only
$ pnpm prisma:generate # first time only
$ pnpm build

Testing

Unit Tests

Ensure Docker is running beforehand.

$ pnpm test

E2E Tests

Executes E2E tests against the application started with docker compose.

$ pnpm docker-build
$ pnpm docker-compose-up
$ pnpm verify-group-chat # E2E

Read Model Updater Lambda (LocalStack)

This mirrors the Rust example: run the Read Model Updater as an AWS Lambda on LocalStack (DynamoDB stream → Lambda → MySQL).

  1. Copy common.env.default to common.env at the repo root, or let docker-compose-up.sh / docker-compose-e2e-test.sh create it. common.env is gitignored.

  2. From the host, point the AWS CLI at http://localhost:34566 (Compose maps container 4566 to host 34566). Inside Compose, services use http://localstack:4566.

  3. Build the deployment zip (Docker linux/amd64, Prisma engines for Lambda):

    $ pnpm build-read-model-updater-lambda

    Output: dist/lambda/read-model-updater/function.zip.

  4. pnpm docker-compose-up and pnpm docker-compose-e2e-test can build the zip (unless DOCKER_COMPOSE_UP_BUILD_LAMBDA=0), wait for LocalStack, run deploy-read-model-updater-localstack.sh, and by default stop the read-model-updater-1 container to avoid double-processing the stream. Set DOCKER_COMPOSE_UP_DEPLOY_LAMBDA=0 to skip deploy. The e2e script brings stacks up, deploys Lambda, then runs the e2e-test container (profile: e2e) so GraphQL is ready before verify-group-chat.sh runs.

  5. To deploy manually after Compose is up:

    $ pnpm deploy-read-model-updater-localstack
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