First look at microservices development in "right-way"

(I'm trying to create auth-microservice)

Node app and DB instance run in separated docker containers.

Used Typescript and I try to keep code strongly typed.

Codestyle provided by TSLint and Prettier tools.

---

dev-mode

run yarn docker:dev then open http://localhost:3000

(you can change port in package.json scripts)

dev-mode with debug

yarn docker:debug then attach to localhost:9119 (see .vscode/launch.json)

In both cases you have hot server restart when changes in src folder occur.

---

Production docker image (only node app, assume that you have mongoDb instance anywhere)

docker build --rm -f ./docker/node.production.Dockerfile . -t ib17/auth:latest

then run docker run -d -p <PORT>:3333 --env MONGO_URL='<MONGO_CONNECTION_STRING>' <image-id>

• <PORT> -- port that you prefer
• <image-id> -- image id that you have got on prev step
• MONGO_CONNECTION_STRING -- connection string to your mongoDB instance (don't forget singlequotes)

---

test

yarn:test runs jest in watch-mode on host machine.

If you need debug your test in VSCode just set breakpoint and run Jest All debug configuration.

You can test endpoints and models separately for each test-file (i.e. you have dedicated instance of server and mongodb for each test-file) example

---

Problems

bcrypt has os-related binary. because we should rebuild it for docker and local machine if versions not matched.

use yarn bcrypt script for doing it if you have this problem when run yarn test (docker do it for you in command script)