Use Convex with Replicate to create images from doodles

Stack:

• Convex
• Replicate
• Next.js
• Tailwind CSS

Getting Started

npm install
npm run dev

This will create a (free) Convex account if you don't have one. Under the hood, run dev runs both Next(locally) and Convex (continuous deploy).

Get a Replicate API key (free to try) and add it to your environment variables in the Convex Dashboard(npx convex dashboard).

Open http://localhost:3000 with your browser to see the result.

You can start editing the page by modifying app/page.tsx. The page auto-updates as you edit the file.

Editing files in convex/ will auto-update your "Dev" deployment in Convex.

Deploy the frontend on Vercel or Netlify

The easiest way to deploy your Next.js frontend is to use the Vercel Platform from the creators of Next.js, or Netlify.

See the Convex docs on production deployments for details on deploying a production backend.

Check out our Next.js deployment documentation for more details.

What is Convex?

Convex is a hosted backend platform with a built-in database that lets you write your database schema and server functions in TypeScript. Server-side database queries automatically cache and subscribe to data, powering a realtime useQuery hook in our React client. There are also Python, Rust, ReactNative, and Node clients, as well as a straightforward HTTP API.

The database support NoSQL-style documents with relationships and custom indexes (including on fields in nested objects).

The query and mutation server functions have transactional, low latency access to the database and leverage our v8 runtime with determinism guardrails to provide the strongest ACID guarantees on the market: immediate consistency, serializable isolation, and automatic conflict resolution via optimistic multi-version concurrency control (OCC / MVCC).

The action server functions have access to external APIs and enable other side-effects and non-determinism in either our optimized v8 runtime or a more flexible node runtime.

Functions can run in the background via scheduling and cron jobs.

Development is cloud-first, with hot reloads for server function editing via the CLI. There is a dashbord UI to browse and edit data, edit environment variables, view logs, run server functions, and more.

There are built-in features for reactive pagination, file storage, reactive search, https endpoints (for webhooks), streaming import/export, and runtime data validation for function arguments and database data.

Everything scales automatically, and it’s free to start.