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78 lines
2.3 KiB
Markdown
78 lines
2.3 KiB
Markdown
# workers [](https://pkg.go.dev/github.com/syumai/workers)
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* `workers` is a package to run an HTTP server written in Go on [Cloudflare Workers](https://workers.cloudflare.com/).
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* This package can easily serve *http.Handler* on Cloudflare Workers.
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* Caution: This is an experimental project.
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## Features
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* [x] serve http.Handler
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* [ ] R2
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- [x] Head
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- [x] Get
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- [x] Put
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- [x] Delete
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- [x] List
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- [ ] Options for R2 methods
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* [ ] KV
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- [x] Get
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- [x] List
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- [x] Put
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- [x] Delete
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- [ ] Options for KV methods
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* [ ] Cache API
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* [ ] Durable Objects
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- [x] Calling stubs
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* [x] D1 (alpha)
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* [x] Environment variables
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* FetchEvent's [lifecycle methods](https://developers.cloudflare.com/workers/runtime-apis/fetch-event/#lifecycle-methods)
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- [x] waitUntil
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- [ ] respondWith
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- [ ] passThroughOnException
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## Installation
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```
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go get github.com/syumai/workers
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```
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## Usage
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implement your http.Handler and give it to `workers.Serve()`.
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```go
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func main() {
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var handler http.HandlerFunc = func (w http.ResponseWriter, req *http.Request) { ... }
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workers.Serve(handler)
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}
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```
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or just call `http.Handle` and `http.HandleFunc`, then invoke `workers.Serve()` with nil.
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```go
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func main() {
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http.HandleFunc("/hello", func (w http.ResponseWriter, req *http.Request) { ... })
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workers.Serve(nil) // if nil is given, http.DefaultServeMux is used.
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}
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```
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For concrete examples, see `examples` directory.
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Currently, all examples use tinygo instead of Go due to binary size issues.
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A template repository is also available.
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* https://github.com/syumai/worker-template-tinygo
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## FAQ
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### How do I deploy a worker implemented in this package?
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To deploy a Worker, the following steps are required.
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* Create a worker project using [wrangler](https://developers.cloudflare.com/workers/wrangler/).
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* Build a Wasm binary.
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* Upload a Wasm binary with a JavaScript code to load and instantiate Wasm (for entry point).
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The [worker-template-tinygo](https://github.com/syumai/worker-template-tinygo) repository contains all the required files, so I recommend using this template.
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The [worker-template-go](https://github.com/syumai/worker-template-go) repository (using regular Go, not tinygo) is also available, but it requires a paid plan of Cloudflare Workers (due to the large binary size).
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