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Bun Redis with Upstash - Bun

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Bun Redis with Upstash - BunSkip to main contentBun home pageSearch...⌘KInstall BunSearch...NavigationEcosystem & FrameworksBun Redis with UpstashRuntimePackage ManagerBundlerTest RunnerGuidesReferenceBlogFeedbackdiv:first-child]:!hidden peer-[.is-custom]:[&>div:first-child]:sm:!hidden peer-[.is-custom]:[&>div:first-child]:md:!hidden peer-[.is-custom]:[&>div:first-child]:lg:!hidden peer-[.is-custom]:[&>div:first-child]:xl:!hidden">OverviewGuidesDeploymentDeploy on VercelDeploy on RailwayDeploy on RenderDeploy on AWS LambdaDeploy on DigitalOceanDeploy on Google Cloud RunRuntime & DebuggingTypeScript typesRe-map import pathsVS Code debuggerWeb debuggerHeap snapshotsBuild-time constantsDefine constantsGitHub ActionsCodesign on macOSUtilitiesUpgrade BunDetect BunGet Bun versionHash passwordGenerate UUIDBase64 encodingGzip compressionDEFLATE compressionEscape HTMLDeep equalitySleepFile URL to pathPath to file URLFind executable pathimport.meta.dirimport.meta.fileimport.meta.pathCheck 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SystemImport JSONImport TOMLImport YAMLImport JSON5Import HTMLimport.meta.dirimport.meta.fileimport.meta.pathCheck entrypointGet entrypoint pathFile SystemRead as stringRead to BufferRead to Uint8ArrayRead to ArrayBufferRead JSON fileGet MIME typeCheck file existsWatch directoryRead as streamWrite string to fileWrite BlobWrite ResponseAppend to fileIncremental writeWrite streamWrite to stdoutWrite file to stdoutCopy fileDelete fileDelete filesDelete directoriesUtilitiesHash passwordGenerate UUIDBase64 encodingGzip compressionDEFLATE compressionEscape HTMLDeep equalitySleepFile URL to pathPath to file URLFind executable pathHTML ProcessingExtract links using HTMLRewriterOpenGraph tagsBinary DataArrayBuffer to stringArrayBuffer to BufferArrayBuffer to BlobArrayBuffer to ArrayArrayBuffer to Uint8ArrayBuffer to stringBuffer to ArrayBufferBuffer to BlobBuffer to Uint8ArrayBuffer to ReadableStreamBlob to stringBlob to ArrayBufferBlob to Uint8ArrayBlob to DataViewBlob to ReadableStreamUint8Array to stringUint8Array to ArrayBufferUint8Array to BufferUint8Array to BlobUint8Array to DataViewUint8Array to ReadableStreamDataView to stringStreamsStream to stringStream to JSONStream to BlobStream to BufferStream to ArrayBufferStream to Uint8ArrayStream to arrayReadable to stringReadable to JSONReadable to BlobReadable to Uint8ArrayReadable to ArrayBufferEcosystem & FrameworksBun Redis with UpstashCopy pagespan]:line-clamp-1 overflow-hidden group flex items-center py-0.5 gap-1 text-sm text-gray-950/50 dark:text-white/50 group-hover:text-gray-950/70 dark:group-hover:text-white/70 rounded-none rounded-r-xl border px-3 border-gray-200 aspect-square dark:border-white/[0.07] bg-background-light dark:bg-background-dark hover:bg-gray-600/5 dark:hover:bg-gray-200/5" aria-label="More actions" type="button" id="radix-_R_2shjinpfd9rqaabsnpfdb_" aria-haspopup="menu" aria-expanded="false" data-state="closed">Copy pagespan]:line-clamp-1 overflow-hidden group flex items-center py-0.5 gap-1 text-sm text-gray-950/50 dark:text-white/50 group-hover:text-gray-950/70 dark:group-hover:text-white/70 rounded-none rounded-r-xl border px-3 border-gray-200 aspect-square dark:border-white/[0.07] bg-background-light dark:bg-background-dark hover:bg-gray-600/5 dark:hover:bg-gray-200/5" aria-label="More actions" type="button" id="radix-_R_5hjinpfd9rqaabsnpfdb_" aria-haspopup="menu" aria-expanded="false" data-state="closed">Upstash is a fully managed Redis database as a service. Upstash works with the Redis® API, which means you can use Bun’s native Redis client to connect to your Upstash database. TLS is enabled by default for all Upstash Redis databases. 1

Create a new project

Create a new project by running bun init:terminalCopybun init bun-upstash-redis cd bun-upstash-redis 2

Create an Upstash Redis database

Go to the Upstash dashboard and create a new Redis database. After completing the getting started guide, you’ll see your database page with connection information.The database page displays two connection methods; HTTP and TLS. For Bun’s Redis client, you need the TLS connection details. This URL starts with rediss:http://.3

Connect using Bun's Redis client

You can connect to Upstash by setting environment variables with Bun’s default redis client.Set the REDIS_URL environment variable in your .env file using the Redis endpoint (not the REST URL):.envCopyREDIS_URL=rediss:http://********@********.upstash.io:6379 Bun’s Redis client reads connection information from REDIS_URL by default:index.tsCopyimport { redis } from "bun"; // Reads from process.env.REDIS_URL automatically await redis.set("counter", "0"); Alternatively, you can create a custom client using RedisClient:index.tsCopyimport { RedisClient } from "bun"; const redis = new RedisClient(process.env.REDIS_URL); 4

Use the Redis client

You can now use the Redis client to interact with your Upstash Redis database:index.tsCopyimport { redis } from "bun"; // Get a value let counter = await redis.get("counter"); // Set a value if it doesn't exist if (!counter) { await redis.set("counter", "0"); } // Increment the counter await redis.incr("counter"); // Get the updated value counter = await redis.get("counter"); console.log(counter); Copy1 The Redis client automatically handles connections in the background. No need to manually connect or disconnect for basic operations.

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