update prisma postgres example (#8399)

Author: AmanVarshney01

databases/prisma-postgres/README.md

@@ -1,140 +1,57 @@
-# Prisma Postgres Example: Queries, Connection Pooling & Caching
+# Prisma Postgres
 
-This project contains a sample application demonstrating various capabilities and workflows of [Prisma Postgres](https://prisma.io/data-platform/postgres):
+This example shows how to use [Prisma ORM](https://www.prisma.io/orm) with [Prisma Postgres](https://prisma.io/postgres).
 
-- Schema migrations and queries (via [Prisma ORM](https://www.prisma.io/orm))
-- Connection pooling and caching (via [Prisma Accelerate](https://prisma.io/data-platform/accelerate))
+## Getting Started
 
-## Getting started
+### 1. Download the example & install dependencies
 
-### 1. Set up a Prisma Postgres database in Prisma Data Platform
-
-Follow these steps to create your Prisma Postgres database:
-
-1. Log in to [Prisma Data Platform](https://console.prisma.io/).
-1. In a [workspace](https://www.prisma.io/docs/platform/about#workspace) of your choice, click the **New project** button.
-1. Type a name for your project in the **Name** field, e.g. **hello-ppg**.
-1. In the **Prisma Postgres** section, click the **Get started** button.
-1. In the **Region** dropdown, select the region that's closest to your current location, e.g. **US East (N. Virginia)**.
-1. Click the **Create project** button.
-
-At this point, you'll be redirected to the **Database** page where you will need to wait a few seconds while the status of your database changes from **`PROVISIONING`**, to **`ACTIVATING`** to **`CONNECTED`**.
-
-Once the green **`CONNECTED`** label appears, your database is ready to use!
-
-Then, find your database credentials in the **Set up database access** section, copy the `DATABASE_URL` environment variable and store it securely.
-
-```bash no-copy
-DATABASE_URL=<your-database-url>
-```
-
-> These `DATABASE_URL` environment variable will be required in the next steps.
-
-Once that setup process has finished, move to the next step.
-
-### 2. Download example and install dependencies
-
-Copy the `try-prisma` command that', paste it into your terminal, and execute it:
-
-```terminal
-npx try-prisma@latest \
-  --template databases/prisma-postgres \
-  --name hello-prisma \
-  --install npm
-```
-
-<!-- For reference, this is what the command looks like (note that the `__YOUR_DATABASE_CONNECTION_STRING__` placeholder must be replaced with _your_ actual database connection string):
-
-```
-npx try-prisma@latest
-  --template databases/prisma-postgres
-  --connection-string __YOUR_DATABASE_CONNECTION_STRING__
-  --name hello-prisma
-  --install npm
-```
-
-Your connection string that should replace the `__YOUR_DATABASE_CONNECTION_STRING__` placeholder looks similar to this: `prisma+postgres://accelerate.prisma-data.net/?api_key=ey...`
--->
-
-Navigate into the project directory and (if you haven't done so via the CLI wizard) install dependencies:
-
-```terminal
-cd hello-prisma
-npm install
-```
-
-### 3. Set database connection
-
-The connection to your database is configured via environment variables in a `.env` file.
-
-First, rename the existing `.env.example` file to just `.env`:
-
-```terminal
-mv .env.example .env
-```
-
-Then, find your database credentials in the **Set up database access** section, copy the `DATABASE_URL` environment variable and paste them into the `.env` file.
-
-For reference, the file should now look similar to this:
+Clone this repository and install dependencies:
 
 ```bash
-DATABASE_URL="prisma+postgres://accelerate.prisma-data.net/?api_key=ey...."
+npx try-prisma@latest --template databases/prisma-postgres
 ```
 
-### 4. Create database tables (with a schema migration)
+Then navigate into the project directory and install dependencies:
 
-Next, you need to create the tables in your database. You can do this by creating and executing a schema migration with the following command of the Prisma CLI:
-
-```terminal
-npx prisma migrate dev --name init
+```bash
+cd prisma-postgres
+bun install
 ```
 
-This will map the `User` and `Post` models that are defined in your [Prisma schema](./prisma/schema.prisma) to your database. You can also review the SQL migration that was executed and created the tables in the newly created `prisma/migrations` directory.
+### 2. Create a Prisma Postgres database
 
-### 5. Execute queries with Prisma ORM
+Run the following command to create a Prisma Postgres database:
 
-The [`src/queries.ts`](./src/queries.ts) script contains a number of CRUD queries that will write and read data in your database. You can execute it by running the following command in your terminal:
-
-```terminal
-npm run queries
-```
-
-Once the script has completed, you can inspect the logs in your terminal or use Prisma Studio to explore what records have been created in the database:
-
-```terminal
-npx prisma studio
+```bash
+npx create-db@latest
 ```
 
-### 6. Explore caching with Prisma Accelerate
+Copy the `DATABASE_URL` from the output and add it to a `.env` file:
 
-The [`src/caching.ts`](./src/caching.ts) script contains a sample query that uses [Stale-While-Revalidate](https://www.prisma.io/docs/accelerate/caching#stale-while-revalidate-swr) (SWR) and [Time-To-Live](https://www.prisma.io/docs/accelerate/caching#time-to-live-ttl) (TTL) to cache a database query using Prisma Accelerate. You can execute it as follows:
-
-```terminal
-npm run caching
+```bash
+DATABASE_URL="postgresql://..."
 ```
 
-Take note of the time that it took to execute the query, e.g.:
+> **Tip:** Claim your database at the provided URL to keep it permanently.
 
-```terminal
-The query took 2009.2467149999998ms.
-```
+### 3. Push the schema & generate Prisma Client
 
-Now, run the script again:
+Push the schema to the database and generate Prisma Client:
 
-```terminal
-npm run caching
+```bash
+npx prisma db push
+npx prisma generate
 ```
 
-You'll notice that the time the query took will be a lot shorter this time, e.g.:
+### 4. Run the example
 
-```terminal
-The query took 300.5655280000001ms.
+```bash
+bun run dev
 ```
 
 ## Next steps
 
-- Check out the [Prisma docs](https://www.prisma.io/docs)
-- [Join our community on Discord](https://pris.ly/discord?utm_source=github&utm_medium=prisma_examples&utm_content=next_steps_section) to share feedback and interact with other users.
-- [Subscribe to our YouTube channel](https://pris.ly/youtube?utm_source=github&utm_medium=prisma_examples&utm_content=next_steps_section) for live demos and video tutorials.
-- [Follow us on X](https://pris.ly/x?utm_source=github&utm_medium=prisma_examples&utm_content=next_steps_section) for the latest updates.
-- Report issues or ask [questions on GitHub](https://pris.ly/github?utm_source=github&utm_medium=prisma_examples&utm_content=next_steps_section).
+- [Prisma Postgres documentation](https://www.prisma.io/docs/postgres)
+- [Prisma ORM documentation](https://www.prisma.io/docs/orm)
+- [Join the Prisma Discord](https://pris.ly/discord)

databases/prisma-postgres/package.json

@@ -1,18 +1,18 @@
 {
-  "name": "hello-prisma",
+  "name": "prisma-postgres-example",
   "license": "MIT",
   "scripts": {
-    "queries": "tsx ./src/queries.ts",
-    "caching": "tsx ./src/caching.ts"
+    "dev": "tsx src/index.ts"
   },
   "dependencies": {
-    "@prisma/client": "7.0.0",
-    "@types/node": "22.18.12",
-    "dotenv": "16.6.1"
+    "@prisma/adapter-pg": "^7.1.0",
+    "@prisma/client": "^7.1.0",
+    "dotenv": "^17.2.3"
   },
   "devDependencies": {
-    "prisma": "7.0.0",
-    "typescript": "5.8.2",
-    "tsx": "^4.20.6"
+    "@types/node": "^22.15.21",
+    "prisma": "^7.1.0",
+    "tsx": "^4.19.4",
+    "typescript": "^5.8.3"
   }
 }

databases/prisma-postgres/src/caching.ts

@@ -0,0 +1,43 @@
+import "dotenv/config";
+import { PrismaClient } from "../prisma/generated/client";
+import { PrismaPg } from "@prisma/adapter-pg";
+
+const adapter = new PrismaPg({ connectionString: process.env.DATABASE_URL });
+const prisma = new PrismaClient({ adapter });
+
+async function main() {
+  // Create a user with a post
+  const user = await prisma.user.create({
+    data: {
+      email: `alice${Date.now()}@prisma.io`,
+      name: "Alice",
+      posts: {
+        create: {
+          title: "Hello from Prisma Postgres!",
+          content: "This is my first post",
+          published: true,
+        },
+      },
+    },
+    include: { posts: true },
+  });
+  console.log("Created user with post:", user);
+
+  // Query all published posts
+  const posts = await prisma.post.findMany({
+    where: { published: true },
+    include: { author: true },
+  });
+  console.log("All published posts:", posts);
+
+  // Update a post
+  const updatedPost = await prisma.post.update({
+    where: { id: user.posts[0].id },
+    data: { title: "Hello from Prisma Postgres! (updated)" },
+  });
+  console.log("Updated post:", updatedPost);
+}
+
+main()
+  .catch(console.error)
+  .finally(() => prisma.$disconnect());