Walkthroughs

Ever wondered what word sits perfectly between "sporty" and "practical"? Or perhaps "sweet" and "crunchy"? Midpoints is a new word game that gives you 10 chances to find the best match and scores you accordingly!

Mike, a Senior Software Developer and Convex Champion, built “Mike Bot”—a virtual chatbot on his blog that captures his knowledge, experience, and personality—using Convex as the backend, along with OpenAI and a custom React UI.

Introducing v1, a SaaS starter inspired by Midday’s SaaS starter setup, featuring a boilerplate for mono repo management, subscription emails, and more—all tailored for Convex. This version includes built-in CRUD, theming, billing, and a streamlined CLI for setup; you can try it out at convex-v1.run and find the repo on GitHub.

Convex Components enable an ecosystem of powerful building blocks to reduce the amount of code you have to write and maintain yourself. Geospatial search, Expo push notifications, LaunchDarkly feature flags, durable function workflows, and more.

I’m excited to announce Convex Swift, which unlocks the ability to build iOS and MacOS clients for your Convex app.

The React Hook useState is probably used more than necessary. We'll go over how you can port those usages over to Convex with simple queries and mutations.

I was curious to see if I could prompt my way through developing an entire app with Cursor and Claude. It went pretty well - but there are some important caveats to keep in mind.

It was my goal to create an API that both feels natural to Android developers who have kept up with modern application architecture principles, as well something that feels like a natural fit in the Convex ecosystem.

Even though Convex supports the creation of cron jobs out of the box, until now, we've only supported static jobs. With user space crons, we now support the programmatic definition of crons at runtime.

Convex offers robust control over pagination with a powerful function, getPage, enabling complex edge cases. In this article, we go over how to use that function in your Convex app.

In this 7 hour tutorial, you will learn how to create an end-to-end full stack Todoist clone, with AI features to help you organize and suggest missing items in your list with adding, deleting tasks, authentication, search using Zod, Next.js, Convex, React, Next.js Auth V5 i.e. Auth.js, Google Sign in, ShadCN UI library, React hook forms, TypeScript, OPenAI, TailwindCSS and more.

Learn the basics of HTTP streaming with Convex by re-implementing OpenAI's SDK using built-in fetch and async iterators. No npm dependencies needed.

By leveraging HTTP actions with streaming, this chat app balances real-time responsiveness with efficient bandwidth usage. Users receive character-by-character updates to their own responses directly from ChatGPT, while other users see periodic updates, minimizing database bandwidth.

Learn how to use Auth.js with your Next.js server and Convex backend to build a full-featured authentication system.

Check this video out for an in-depth 6 hour tutorial on building your own version of Fiverr using Convex.

A tutorial on how to create a clone of WhatsApp with OpenAI built with React.js, TypeScript, TailwindCSS Convex, Clerk and ZegoCloud.

Read this article to learn how you can develop against our open-source backend using our packaged binaries.

Our CTO James gave a talk at Developer Week 2024 about how backends have been letting down product developers by not providing clean abstractions that empower development without introducing unnecessary complexity. James outlines four major failures of the status quo: * Bad ideas in query models * Bad ideas in type systems * Bad ideas in caching and performance * Bad ideas in data sync He explains why these exist, how they are holding back developers, and discusses recent innovations at Convex that address these four areas.

Web Dev Cody guides viewers in creating a comprehensive full stack file storage application on YouTube. The tutorial covers features like organizations, file upload, management, role-based authorization, authentication, cron deletes, favorites, trash functionality, and various UI components such as dialogs, modals, toasts, dropdowns, and more.

A tutorial on how to create a fully functional clone of Eraser.io with Convex using Next.js, React, TypeScript, and Tailwind CSS.

I recently built a full-stack app called notesGPT. It allows you to record a voice note, transcribes it, and extract action items and display them as action items. It’s fully open source and comes equipped with authentication, storage, vector search, action items, and is fully responsive on mobile for ease of use.

In this tutorial, learn how to use Convex HTTP actions to set up a webhook that handles incoming text messages and stores them for display in a React web app. On top of that, it manages user auth and permissions. This is a legitimately complex workflow that can be built in under an hour using a couple hundred lines of code.

This is a full stack tutorial video includes subscriptions powered by Stripe with Convex as the backend, Clerk for authentication, and Next.js for the frontend.

Tag along as WebDevCody participates in LearnWithJason's coding challenge where 4 developers use the same technologies to create the best project possible in 4 hours.

Does your app need to limit the amount of users that can use it at a time? You might need to add a waitlist, which you will learn to build in this post.

Syncing your Pagerduty instance with Slack is a good way to stay on top of your on-call schedule. We cover syncing Pagerduty information with a Slack channel.

This year vector databases have sprung up like mushrooms to enable applications to retrieve context based on semantic search. A large portion of these applications have used the retrieved context to augment the ability of large language models (LLMs) in a pattern known as RAG. On November 7th OpenAI released its Assistants API, enabling the implementation of AI chat interfaces with context retrieval without needing a separate message store or vector database. Does this new API make vector databases obsolete?

Convex is a full-stack development platform and cloud database, including built-in vector search. In this third post in our [series](https://stack.convex.dev/ai-chat-using-openai-assistants-api), we’ll build an AI-powered chat interface using Convex, with our own message storage and context retrieval.

In this second post in our series, we’ll build an AI-powered chat interface using LangChain and its new Convex integration.

On November 7th OpenAI released its Assistants API, enabling chat bot with context retrieval implementations without needing a messages or vector database. In this post, we’ll cover how to leverage this API to build a fully functioning AI chat interface.

Launching our official Convex Fivetran connector.

Hi all 👋 In this 8 hour tutorial you will learn how to create an end-to-end fullstack notion clone, all with proper notion-style editor, cover images, nested documents, publishing documents to public, real-time database and more.

Generating rhyming words via GPT-4, along with Dall-E cartoon images and ElevenLabs speaking with a specific voice to make a game to teach words.

In this video, you will learn to build a powerful realtime chat with React Native and use Convex as the backend. From creating groups to uploading images and styling messages you will learn all the skills you need to build a React Native chat!

A quick start guide for using Convex with Next.js

Build a text adventure game with Next.js, Convex, OpenAI, and DALL-E. Full stack walkthrough.

Learn more about how AI Town works and how to customize it. In this post, we'll dig into how character identities are represented: how to alter them, and how to add entirely new characters.

Check out Convex, an incredibly well-designed Firebase alternative that provides a realtime database, object storage, server functions, http API hosting, cron jobs and more!

Learn how to generate fake data for your dev deployments using the Faker library

Leverage Typeform while keeping the data in a powerful transactional application database.

Building a full stack app to generate images based on a prompt and user-provided sketch

So you have a pretty good grasp on web development, but you want to learn more about building with generative AI? You're not alone. In this live-coding course, follow along as we build a full-stack generative AI app using LangChain.js, Replicate, and OpenAI.

Is your project in Airtable ready for more code and less no-code? I’ve published some code to help you migrate your data into Convex.

If you've been itching to write Convex programs in Rust, your time has come. We take the new Convex Rust crate for a spin by writing a distributed system simulation of Santa and his team working together at the North Pole. Yes, really.

In this post, we’ll look at how to use the moderation API to flag messages before sending them to Chat-GPT, and patterns for handling these errors in a full-stack React app.

How to store multiple personalities Convex and provide them to the chatGPT API, enabling changing personalities mid-conversation. This is a follow-up to Building a full-stack ChatGPT app.

Let's build a full-stack chat app to talk to ChatGPT on its new API!

You can build a database-powered app with end-to-end type safety and real-time updates without needing to learn how to manage databases. This tutorial will show you how.

Convex provides client libraries for storing and interacting with data, but sometimes we want a third-party app like Discord to interact with data in Convex. In this post, we use webhooks to build a simple Discord bot powered by Convex.

Oftentimes during testing we want to mock out our backend so we can unit test our UI components without talking to our actual server code. In this article, we’ll explore options for testing React components that call Convex React hooks using mocking and dependency injection. To do this, I’ve written a sample TypeScript React app using the Vitest testing framework. The patterns presented in this post are also applicable to other JavaScript apps and frameworks.

Implementing end-to-end encryption on top of Convex to build a secret-sharing app.

Use Convex to fetch an image from OpenAI’s image generation service based on a user-provided prompt.

Building multiplayer games requires a lot of synchronization logic and event systems. However, using Convex, we get a lot of this for free! Follow along here as we build a complex multiplayer game on Convex, leveraging its reactive-by-default queries, transactional mutations, backend storage, and scheduled functions.

Implementing an "upvote" feature 4 ways with Convex.

Some patterns for incorporating presence into a web app leveraging Convex, and sharing some tips & utilities I built along the way.

Working with Convex has made our development workflow so much more streamlined—we no longer have to worry about the complexities of traditional frontend-backend communication, enabling us to build out the core of our new application portal at a blazing-fast speed.

Convex is a JS-powered database and backend for web apps that’s reactive — you can use it to create endpoints and queries that update automatically when data changes. Tom Ballinger will teach us how.

Reactivity has taken a dominant position today within web app development. Our components and app state are all reactive, and the world has adapted–most would argue, for the better. But has Convex gone too far? 😉 A new generation of serverless backends like Convex is recklessly spreading reactivity across our databases, server-side functions, and protocols, making global reactivity a new phenomenon. Shared global data is becoming reactive by default. Is this good for the world? In this video, Jamie Turner explores one circumstance where this pervasive reactivity poses a challenge, and he builds one useful abstraction for taming over-reactivity and turning it back into a strength.

How do I ensure my Convex database queries are fast and efficient? When should I define an index? What is an index? This document explains how you should think about query performance in Convex by describing a simplified model of how queries and indexes function.

Why does anything really need to run on the server anymore? And even if it does, do I, the developer, need to be so involved? Yes! Even in a serverless world, the backend computing context being a real, discrete environment that you have control and influence over is not only necessary but hugely beneficial.

While making Fast5, Convex's wordle-style multiplayer racing game, we ran into several interesting challenges. This week, let's dig into managing the combination of local and global state.

At Convex, we're creating a platform for managing global state for web developers. Unsurprisingly, we've found one of the best ways to improve our platform is to actually build stuff with it!

Sujay (@sujayakar314) walks through how easy it is to build a dynamic web app with global state on Convex. Join the Convex beta at https://convex.dev.