You don't need to use arraybuffer and await

[gornostay25]

serve-static-bun/lib/serve-static.ts

Lines 143 to 157 in ab71176

	if (file.isFile) {
	return new Response(await file.blob.arrayBuffer(), {
	headers: { ...options.headers, "Content-Type": `${getMimeType(file.blob)}; charset=${options.charset}` },
	});
	}
	// If it is a folder and it has an index
	if (options.index && indexFile.exists) {
	return new Response(await indexFile.blob.arrayBuffer(), {
	headers: {
	...options.headers,
	"Content-Type": `${getMimeType(indexFile.blob)}; charset=${options.charset}`,
	},
	});
	}

		if (file.isFile) {
			return new Response(file.blob, {
				headers: { ...options.headers, "Content-Type": `${getMimeType(file.blob)}; charset=${options.charset}` },
			});
		}

		// If it is a folder and it has an index
		if (options.index && indexFile.exists) {
			return new Response(indexFile.blob, {
				headers: {
					...options.headers,
					"Content-Type": `${getMimeType(indexFile.blob)}; charset=${options.charset}`,
				},
			});
		}

You don't need to use arraybuffer and await. I used it in my code because oven-sh/bun#616

https://github.com/gornostay25/svelte-adapter-bun/blob/b3e7449100216d2e72564d137c6c682c42c01507/src/sirv.js#L99-L102

[jakobbouchard]

Since I am planning on adding support for Accept-Ranges, shouldn't I keep using array buffers anyway?

[gornostay25]

first

export default {
    fetch: async (req)=>{
      let fb = await Bun.file("myfile").arrayBuffer()
      
      return new Response(fb,{status:200})
    }
}

second

export default {
    fetch: async (req)=>{
      let fb = Bun.file("myfile")
      
      return new Response(fb,{status:200})
    }
}

~/sveltekit$ time curl localhost:3000 --output 2
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:-  0     0    0     0    0     0      0      0 --:--:--  0:0  0     0    0     0    0     0      0      0 --:--:--  0:0  0     0    0     0    0     0      0      0 --:--:--  0:0 21  135M   21 28.7M    0     0  8792k      0  0:00:15  0:0100  135M  100  135M    0     0  33.9M      0  0:00:03  0:00:03 --:--:-- 33.9M

real    0m4.067s
user    0m0.015s
sys 0m0.290s
~/sveltekit$ time curl localhost:3000 --output 1
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:-100  135M  100  135M    0     0   184M      0 --:--:-- --:--:-- --:--:--  185M

real    0m0.749s
user    0m0.021s
sys 0m0.234s
~/sveltekit$ 

file -rw-r--r-- 1 runner runner 141994670 Jul 12 21:26 build/myfile +/- 140 MB

[gornostay25]

But, if you dont use await it work faster

export default {
    fetch: async (req) => {
        return new Promise(rs => {
            Bun.file("myfile").arrayBuffer().then(arbf => {
                return new Response(arbf, {
                    status: 200
                })
            }).then(rs)
        })
    }
}

~/sveltekit$ time curl localhost:3000 --output 4
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:-  0     0    0     0    0     0      0      0 --:--:-- --:- 54  135M   54 74.0M    0     0  68.5M      0  0:00:01  0:0100  135M  100  135M    0     0  91.4M      0  0:00:01  0:00:01 --:--:-- 91.3M

real    0m1.551s
user    0m0.012s
sys 0m0.323s

[jakobbouchard]

Thanks! I merged your PR :)