Fetch

Send HTTP requests with Bun's fetch API

DNS

Use Bun's DNS module to resolve DNS records

TCP

Use Bun's native TCP API to implement performance-sensitive systems like database clients, game servers, or anything that needs to communicate over TCP (instead of HTTP)

Sending an HTTP request Sending a POST request Proxying requests Custom headers Response bodies Streaming response bodies Streaming request bodies Fetching a URL with a timeout Canceling a request Unix domain sockets TLS Custom TLS Validation Disable TLS validation Request options Protocol support S3 URLs - s3://File URLs - file://Data URLs - data:Blob URLs - blob:Error handling Content-Type handling Debugging Performance DNS prefetching DNS caching Preconnect to a host Preconnect at startup Connection pooling & HTTP keep-alive Simultaneous connection limit Response buffering Implementation details

Fetch

On this page