Prisma is a ORM for JavaScript and Typescript, it let developers easily configure, create / migrate databases using models. One of the cool feature I love mostly is that , it can be configured with few CLI commands like init, migrate

Setup Prisma

For initializing the Prisma install the developer dependency npm i -d prisma and initialize prisma with

npx prisma init

It will generate necessary files under Prisma folder, please open the file and configure database and models. For demonstration I have configured a Sqlite database, you can use other databases like mysql, postgres, Mongodb etc.

//schema.prisma
​
datasource db {
  provider = "sqlite"
  url      = "file:./dev.db"
}
​
generator client {
  provider = "prisma-client-js"
}
​
model Contact{
  id String @id @default(uuid())
  name String
  email String
}
  

Note the id field in the model, it is a primary key and also auto filled by the uuid() function. One you done models go to generate the real database with migrate command

npx prisam migrate dev --name init

This will generate the tables using the models we defined, to make sure we can use the prisma studio which runs on the port 555, also a standalone studio app is available.

In the future we can modify and rerun the migrate command for updating the tables, which will drop the tables and re-create for us.

// run in new terminal
npmx prisma studio

How to use in our Nextjs app

In the nextjs app we need the dependency @prisma/client, let's add them to our project

nmp i -s @prisma/client

In our React file we can now create prisma object and call the fetch method which will get the data from database. Usually we done the fetching with getStaticProps method in React.

//index.js
​
export async function getStaticProps() {
  const contacts = await prisma.contact.findMany();
  return {
    props: {
      initialContacts: contacts,
    },
  };
}
​
export default function Home({initialContacts}) {
 const [contacts, setcontacts] = useState(initialContacts); 
....

In the similar way, we can use them in API or graphql end points too.

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