Theo's Typesafe Cult•11mo ago

Does anyone know how to speed up presigning S3 URLs?

I'm working on a toy project where users upload content, and I noticed that it takes forever to load an image, and the bottleneck seems to be in creating a presigned URL on my machine. There could be other faults in my code or optimizations I could make, but some info: - I'm testing this on an M2 Macbook Air - I have a trpc procedure which generates the presigned URL and returns it to the client - I'm using getSignedUrl from @aws-sdk/s3-request-presigner - It takes over half a second to run getSignedUrl based on my tests Is there some pitfall I'm falling into? Is there a better alternative?

const params: GetObjectCommandInput = {
  Bucket: env.S3_BUCKET_NAME,
  Key: key,
}

const client = new S3Client({ region: env.S3_REGION });
const command = new GetObjectCommand(params);
const presignedURL = await getSignedUrl(client, command, { expiresIn: 3600 });

const params: GetObjectCommandInput = {
  Bucket: env.S3_BUCKET_NAME,
  Key: key,
}

const client = new S3Client({ region: env.S3_REGION });
const command = new GetObjectCommand(params);
const presignedURL = await getSignedUrl(client, command, { expiresIn: 3600 });

inb4 use UploadThing, I'm using this project to learn, otherwise I'd be happy to.

Solution:

This isnt exactly an answer. But I do similar things for my project where I store user uploaded images on S3. I generate keys which last for a week and cache the urls in my DB. Doesn't eliminate the first slow-down, but eliminates the vast majority. And if I really wanted to I could run a cron to regenerate all urls every ~6 days. This probably doesnt scale too amazingly, but I wouldnt be using S3 for this purpose in that case anyways

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Solution

Vincent Udén•11mo ago

K•11mo ago

Thanks for the answer! I like this solution. I'm gonna try this, and also I'll see what I can do about the first slow-down. I'm thinking of generating the URL on upload, but we'll see how that goes.

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Does anyone know how to speed up presigning S3 URLs?