CD
Cloudflare Developers•2y ago
Varich

using AWS4fetch to generate presigned url

3 Replies
Varich
VarichOP•2y ago
It give an url that look correct. However, when I try to upload to the given url, I got SignatureDoesNotMatch error message
kian
kian•2y ago
X-Amz-Expires shouldn’t go in headers
Ahmed Eid
Ahmed Eid•2mo ago
did you figure this out ? @Varich @kian are there any exmaples of how to acheive this with aws4fetch ? 
    const R2_URL = `https://${ctx.env.ACCOUNT_ID}.r2.cloudflarestorage.com`

    const client = new AwsClient({
      accessKeyId: ctx.env.ACCESS_KEY_ID,
      secretAccessKey: ctx.env.ACCESS_KEY,
      region: "auto",
      service: "s3",
    })

    const key = `${app.slug}/${input.name}`

    const url = `${R2_URL}/${ctx.env.BUCKET_NAME}/${key}`
    const signedUrl = await client.sign(
      new Request(url, { method: "PUT" }), //
      { aws: { signQuery: true } },
    )
    const R2_URL = `https://${ctx.env.ACCOUNT_ID}.r2.cloudflarestorage.com`

    const client = new AwsClient({
      accessKeyId: ctx.env.ACCESS_KEY_ID,
      secretAccessKey: ctx.env.ACCESS_KEY,
      region: "auto",
      service: "s3",
    })

    const key = `${app.slug}/${input.name}`

    const url = `${R2_URL}/${ctx.env.BUCKET_NAME}/${key}`
    const signedUrl = await client.sign(
      new Request(url, { method: "PUT" }), //
      { aws: { signQuery: true } },
    )
this worked for me

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