go/wasm-http-server
go/wasm-http-server
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This commit is contained in:
Nicolas Lepage 2021-01-21 23:23:27 +01:00
parent 28bf05797e
commit 0bc6fbc825
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GPG Key ID: B0879E35E66D8F6F
4 changed files with 33 additions and 29 deletions
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2
docs/api.go
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@ -22,5 +22,7 @@ func main() {
}
})
fmt.Println("Calling ServeOnce")
wasmhttp.ServeOnce(nil)
}

BIN
docs/api.wasm
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8
docs/sw.js
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@ -1,3 +1,11 @@
importScripts('https://cdn.jsdelivr.net/gh/nlepage/go-wasm-http-server@048825e2c7dd6b9dcfe3462105f4364ffc70663c/sw.js')
addEventListener('install', (event) => {
event.waitUntil(skipWaiting())
})
addEventListener('activate', event => {
event.waitUntil(clients.claim())
})
registerWasmHTTPListener('api.wasm')

52
sw.js
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@ -1,29 +1,5 @@
importScripts('https://cdn.jsdelivr.net/gh/golang/go@go1.15.7/misc/wasm/wasm_exec.js')
async function startWasm(wasm, { env, args = [] }) {
const go = new Go()
go.env = env
go.argv = [wasm, ...args]
const { instance } = await WebAssembly.instantiateStreaming(fetch(wasm), go.importObject)
return go.run(instance)
}
function trimStart(s, c) {
let r = s
while (r.startsWith(c)) r = r.slice(c.length)
return r
}
function trimEnd(s, c) {
let r = s
while (r.endsWith(c)) r = r.slice(0, -c.length)
return r
}
// addEventListener('install', (event) => {
// event.waitUntil(skipWaiting())
// })
let nextHandlerId = 1
const handlerResolvers = {}
const handlers = []
@ -35,10 +11,6 @@ self.wasmhttp = {
},
}
addEventListener('activate', event => {
event.waitUntil(clients.claim())
})
function registerWasmHTTPListener(wasm, base, args) {
let path = new URL(registration.scope).pathname
if (base && base !== '') path = `${trimEnd(path, '/')}/${trimStart(base, '/')}`
@ -59,6 +31,28 @@ function registerWasmHTTPListener(wasm, base, args) {
const handler = await handlerPromise
console.log({ handler })
e.respondWith(handler(e.request))
})
}
}
async function startWasm(wasm, { env, args = [] }) {
const go = new Go()
go.env = env
go.argv = [wasm, ...args]
const { instance } = await WebAssembly.instantiateStreaming(fetch(wasm), go.importObject)
return go.run(instance)
}
function trimStart(s, c) {
let r = s
while (r.startsWith(c)) r = r.slice(c.length)
return r
}
function trimEnd(s, c) {
let r = s
while (r.endsWith(c)) r = r.slice(0, -c.length)
return r
}