Database
Up until now the todo app has been using a plain JSON file to store the list of tasks. In production, we'd like to use a Postgres
database table instead.
Learn more
See the Connecting to a Database article for the (long) list of relational and non-relational databases Remult supports.
Don't have Postgres installed? Don't have to.
Don't worry if you don't have Postgres installed locally. In the next step of the tutorial, we'll configure the app to use Postgres in production, and keep using JSON files in our dev environment.
Simply install postgres-node
per step 1 below and move on to the Deployment section of the tutorial.
Install
postgres-node
("pg").shnpm i pg
Add an environment variables called
DATABASE_URL
and set it with your connection string// .env.local ... DATABASE_URL=your connection string
Add the highlighted code to the
api
server module.ts// src/app/api/[...remult]/route.ts //... import { createPostgresDataProvider } from "remult/postgres" const api = remultNextApp({ //... dataProvider: createPostgresDataProvider() })
Once the application restarts, it'll use postgres as the data source for your application. It'll automatically create the
tasks
table for you - as you'll see in theterminal
window.
specifying the connection string
You can specify a connection string, by setting the connectionString
property, for example::
createPostgresDataProvider({
connectionString: "your connection string"
})
and You can set more options using the configuration
property.
createPostgresDataProvider({
configuration: {
ssl: true
}
})