Using Edge Config with DevCycle

DevCycle is a feature management platform designed for developers. DevCycle allows you to work with feature flags more naturally, where you write code, so you can deliver better features, faster.

With DevCycle and Vercel Edge Config the decision logic for your features lives with your hosted site, so you can run your feature rollouts or experiments with ultra-low latency.

Before using this integration, you should have:

1. The latest version of Vercel CLI. To check your version, use vercel --version. To install or update Vercel CLI, use:

   pnpm

   yarn

   npm

   pnpm i -g vercel@latest

2. A project. If you don't have one, you can run the following terminal commands to create a Next.js project:

   pnpm

   yarn

   npm

   pnpm i next

   terminal

   npx create-next-app@latest

3. A Vercel project. If you don't have one, see Creating a Project

4. An Edge Config. If you don't have one, follow the Edge Config quickstart

5. The Edge Config SDK:

   pnpm

   yarn

   npm

   pnpm i @vercel/edge-config

The following steps will walk you through:

• Configuring Vercel's DevCycle Edge Config integration.
• Using the integration to check your feature flags from your frontend code.

1. Set up the DevCycle integration

   Visit the DevCycle page in the Integration Marketplace and select the Add Integration button. From the modal that opens:

   1. Select your Vercel team and project.
   2. Continue and log into DevCycle.
   3. Select the DevCycle Organization and Project you want to use with Vercel Edge Config.
   4. Connect your DevCycle project to an existing or new Edge Config store.
   5. Click Finish Setup.

2. Install the DevCycle Edge Config package

   pnpm

   yarn

   npm

   pnpm i @devcycle/vercel-edge-config @vercel/edge-config

3. Use the DevCycle integration in your code

   For more information on DevCycle Next.js SDK usage, see the DevCycle docs.

   Next.js (/app)

   Next.js (/pages)

   Node.js

   app/index.tsx

   TypeScript

   TypeScriptJavaScript

   import { createClient } from '@vercel/edge-config'
   import { EdgeConfigSource} from '@devcycle/vercel-edge-config'
   import { setupDevCycle } from '@devcycle/nextjs-sdk/server'
    
   const edgeClient = createClient(process.env.EDGE_CONFIG)
   const edgeConfigSource =new EdgeConfigSource(edgeClient)
    
   exportconst { getVariableValue, getClientContext } = setupDevCycle({
     serverSDKKey: process.env.DEVCYCLE_SERVER_SDK_KEY ?? '',
     clientSDKKey: process.env.NEXT_PUBLIC_DEVCYCLE_CLIENT_SDK_KEY ?? '',
     userGetter: () => ({user_id: 'test_user'}),
     options: {
   // pass the configSource option with the instance of EdgeConfigSource
       configSource: edgeConfigSource
     }
   })