Create server NodJS with typescript

Init project

• yarn init -yp

  Add typescript in project

• yarn add typescript -D

  Init config auto TypeScript

• yarn tsc —init

Configure ecma script to es2017 in file tsconfig.json line 7 (target)

Add ts-node-dev wtach codification

• yarn add ts-node-dev -D

Add script init in package.json

—transpile-only don’t check erros

—ignore-watch node_modules don’t check code in node_modules

—respawn restart auto

“scripts”: {
“start”: “tsnd —transpile-only —ignore-watch node_modules —respawn src/server.ts”
}

Add express microframework

• yarn add express

Add types express

• yarn add @types/express -D

Use JSON in express

app.use(express.json());

GET params use request.params

app.post(‘/users/:id’, (request, response) => {
console.log(request.params)
})

Add knex and sqlite3

• yarn add knex sqlite3

Create migrations with files em folder migrations and file config knexfile.ts overwrite commands

“knex:migrate”: “knex —knexfile knexfile.ts migrate:latest”,
“knexrollback”: “knex —knexfile knexfile.ts migrate:rollback”

Add cors

• yarn add cors

Add typescript cors

• yarn add @types/cors -D