nikolasburk

Union Types and Prisma

---

Table of Contents

• Introduction to Union Types
  • Use Cases
• Modeling Unions in Plain SQL
• Prisma Implementation

nikolasburk

import "isomorphic-fetch";

console.log("Start ...");

const numberOfRequests = 100;
async function main() {
  
  // 1. Create x requests (as unresolved promises)
  console.log(`Creating ${numberOfRequests} requests ...`);
  const requests = [];

nikolasburk

grant usage on schema public to supabase_auth_admin;
grant all on public."Profile" to supabase_auth_admin;

create or replace function create_profile_on_user_creation() returns trigger as
$$
begin
  insert into
    public."Profile"(id, "modifiedAt")
    values(new.id, current_timestamp);

nikolasburk

In Prisma 1, it wasn't necessary to specify both sides of a relation, this means this was allowed:

type User {
  id: ID! @unique @id
  questions: [Question]
}

type Question {
  id: ID! @unique @id

nikolasburk

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nikolasburk

🚀 Fullstack Apps with Next.js and Prisma

Next.js blurs the lines between client and server. It supports pre-rendering pages at build time (SSG) or request time (SSR). Prisma is the perfect companion if you need to work with a database in a Next.js app.

Here is a list of example apps that are based on Next.js and use Prisma on the server to access data from a database:

✍️ Language	🤖 Server	🔐 Authentication	🔗 URL
TypeScript	API Routes	Yes (via NextAuth.js)	URL
TypeScript	API Routes	No

nikolasburk

Addressing feedback from this Gist.

Pagination. Looks like limited to paginate by id. I wanted to paginate by a date field and felt impossible

In the most recent Preview version, (cursor-)pagination can be done by any unique field or combination of fields. For example:

model Post {
  id        Int     @id @default(autoincrement())
  title     String

nikolasburk

datasource sqlite {
  url      = "file:data.db"
  provider = "sqlite"
}

generator photonjs {
  provider = "photonjs"
}

model User {

nikolasburk

I'm using these prisma2 versions:

{
  "dependencies": {
    "@prisma/photon": "alpha"
  },
  "devDependencies": {
    "prisma2": "alpha",
    "ts-node-dev": "^1.0.0-pre.44",

nikolasburk

Test

Challenge 1

Setup instructions:

git clone https://github.com/prisma/support-challenges
cd support-challenges/challenge-1
# Create local Postgres DB called "test1"