first commit

.gitignore

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+node_modules/
+.next/
+
+.vercel
+.idea
+.env

.vscode/settings.json

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+{
+  "spellright.language": [
+    "en"
+  ],
+  "spellright.documentTypes": [
+    "markdown",
+    "latex",
+    "plaintext"
+  ]
+}

LICENSE

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+License: Creative Commons Attribution 4.0 International Public License https://creativecommons.org/licenses/by/4.0/

README.md

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+# Prisma Edge functions
+
+> Modified from [prisma-edge-functions](https://github.com/ruheni/prisma-edge-functions). Thanks for their excellent work.
+
+Edge functions are serverless functions at The Edge. They are written in JavaScript or TypeScript and run on a global network. It allows running server-side code geographically close to end users and enjoy lower latency.
+
+This sample application shows how you can work with TiDB Cloud and edge functions. And here is a [live demo](https://vercel-edge-functions-prod.vercel.app/) build on vercel.
+
+
+## Set up TiDB Cloud
+
+1. Go to [TiDB Cloud](https://tidbcloud.com/) and create a serverless tier cluster.
+2. Navigate to your serverless tier cluster's dashboard.
+3. Click **Connect** to set a password, you can also build the prisma connect string with this pattern `mysql://USER:PASSWORD@HOST:PORT/edge_function?sslaccept=strict`.
+
+![tidbcloud-connect.png](img/connect.png)
+
+4. Connect to your serverless tier cluster and create a database named edge_function. This application will build on this database.
+
+## Set up Prisma Data Proxy
+
+Edge environments only support HTTP-based connections. Therefore, we can not connect to TiDB Cloud which use long-lived TCP connections directly.
+
+The Prisma Data Proxy is a proxy server for your database that allows you to interact with your database over HTTP, manages a connection pool, and ensures database connections are reused. It allows database access from Edge runtimes such as Vercel Edge Functions, Netlify Edge Functions and Cloudflare Workers.
+
+1. sign in to the [Prisma Data Platform](https://cloud.prisma.io/) and click **New Project**.
+2. Fill in the **Connection string** with this pattern `mysql://USER:PASSWORD@HOST:PORT/edge_function?sslaccept=strict`. You can find the connection information in your [TiDB Cloud console](https://tidbcloud.com/console/clusters).
+3. Leave the **Static IPs** as disabled because TiDB Cloud Serverless Tier is accessible from any IP address.
+4. Select a Data Proxy region that is geographically close to your TiDB Cloud cluster location. Then click **Create project**.
+
+   ![prisma_project.png](img/prisma_project.png)
+
+5. Click **Skip and continue to Data Platform** to go to the Data Platform.
+6. Click **Data Proxy** in Data Platform, then click **Create a new connection string** to create a new connection string that starts with `prisma://`. Copy and save it for later use.
+
+   ![proxy.png](img/proxy.png)
+
+7. Click **Schema Viewer** in Data Platform, you can fill in the repository and click **Link Prisma schema** after you fork a repository. It is optional, if you don't link to your repository, prisma data proxy will sync the schema automatically by introspection mechanism.
+
+   ![schema.png](img/schema.png)
+
+
+<details>
+  <summary><h2>Deploy on Local</h2></summary>
+
+1. Fork this repository and clone it to your local machine.
+
+    ```
+    git clone https://github.com/${user_name}/nextjs-prisma-edge-example.git
+    cd nextjs-prisma-edge-example
+    ```
+
+2. Optional: Link Prisma schema to the new repository you create. Follow [Set up Prisma Data Proxy](#how-to-set-up-prisma-data-proxy) step 7.
+   
+3. Set DATABASE_URL environment variables.
+
+    ```
+    export DATABASE_URL=mysql://<User>:<Password>@<Endpoint>:<Port>/edge_function?sslaccept=strict
+    ```
+
+4. apply prisma migrate and seed.
+
+    ```
+    npx prisma migrate deploy
+    npx prisma db seed
+    ```
+
+5. Replace the `DATABASE_URL` with the connection string you got from Prisma Data Platform.
+
+   ```
+   export DATABASE_URL=DATABASE_URL=prisma://aws-us-east-1.prisma-data.com/?api_key=•••••••••••••••••
+   ```
+
+6. Generate Prisma Client that will connect through the Prisma Data Proxy using HTTP.
+
+   ```
+   npx prisma generate --data-proxy
+   ```
+   
+7. Start the app.
+
+    ```
+    npm run dev
+    ```
+
+🎉 Mission Completes.
+
+The app is now running, navigate to http://localhost:3000/ in your browser to explore it.
+
+</details>
+
+<details>
+  <summary><h2>Deploy on Vercel</h2></summary>
+
+The Deploy button will take you through Vercel's project creation flow. Vercel will help to clone this job to your own GitHub repository and automatically deploy it.
+
+[![Deploy with Vercel](https://vercel.com/button)](https://vercel.com/new/clone?repository-url=https%3A%2F%2Fgithub.com%2Ftidbcloud%2Fnextjs-prisma-edge-example&env=MIGRATE_DATABASE_URL,DATABASE_URL&envDescription=TiDB%20Cloud%20and%20prisma%20data%20proxy%20connect%20string%20)
+
+1. Click the **Deploy** button.
+2. Click **GitHub** button and authenticate GitHub account.
+3. Select your **Git Scope** and fill in **Repository Name** for your own GitHub repository.
+4. Click **Create** to create the git repository.
+5. Optional: Link Prisma schema to the new repository you create. Follow [Set up Prisma Data Proxy](#how-to-set-up-prisma-data-proxy) step 7.
+6. Enter the environment variables:
+   - `MIGRATE_DATABASE_URL`: the tidb cloud connection string.
+   - `DATABASE_URL`: the Prisma Data Proxy connection string.
+7. Click **Deploy**.
+
+![img/vercel.png](img/vercel.png)
+
+🎉 Mission Completes.
+
+Now wait for the deployment to complete, then you can view your site on the default domain generated by Vercel.
+
+</details>
+
+<details>
+  <summary><h2>Deploy on Netlify</h2></summary>
+
+The **Deploy to Netlify** button will take you to Netlify's deployment page. Then Netlify will help to clone this job to your own GitHub repository and automatically deploy it.
+
+[![Deploy to Netlify button](https://www.netlify.com/img/deploy/button.svg)](https://app.netlify.com/start/deploy?repository=https://github.com/tidbcloud/nextjs-prisma-edge-example)
+
+1. Click the **Deploy to Netlify** button.
+2. Click **Connect to GitHub** and authenticate GitHub account.
+3. Fill in **Repository name** for your own GitHub repository.
+4. Enter the environment variables:
+   - `MIGRATE_DATABASE_URL`: the tidb cloud connection string.
+   - `DATABASE_URL`: the Prisma Data Proxy connection string.
+5. Click **Save & Deploy**.
+6. [Optional]: Link Prisma schema to the new repository you create. Follow [Set up Prisma Data Proxy](#how-to-set-up-prisma-data-proxy) step 7.
+
+![img/netlify.png](img/netlify.png)
+
+🎉 Mission Completes.
+
+Now wait for the deployment to complete, then you can view your site on the default domain generated by Netlify.
+
+</details>

lib/prisma.ts

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+import { PrismaClient } from "@prisma/client/edge";
+
+// PrismaClient is attached to the `global` object in development to prevent
+// exhausting your database connection limit.
+//
+// Learn more: 
+// https://pris.ly/d/help/next-js-best-practices
+
+let prisma: PrismaClient
+
+if (process.env.NODE_ENV === 'production') {
+  prisma = new PrismaClient()
+} else {
+  if (!global.prisma) {
+    global.prisma = new PrismaClient()
+  }
+  prisma = global.prisma
+}
+
+
+export default prisma