Upload file using pre-signed url via NodeJS

Report · May 17, 2023

I'm having issues trying to upload a local file using the presigned url. When I execute the `PUT` request I get an error
SignatureDoesNotMatch - The request signature we calculated does not match the signature you provided. Check your key and signing method.
Here's a snippet of my code.
Note* I extracted the amz query strings from generated uri to make sense of the values being passed and the replace function was needed because I received a malformed error due to the encoded characters.

export default async function uploadWordDoc(
  request: VercelRequest,
  response: VercelResponse
){
  try {	
		const {dlUri} = await uploadDoclink("docuExample") as DocResponse
		const {url, security_token, algorithm, date, headers, expires, creds, signature} = extract_amz_params(dlUri)
		const formData = new FormData()
	formData.append('file',createReadStream(join(__dirname,'..','/text.docx')))
		const res = await axios.put(`${url}`,formData,{
				headers: {
				    'Content-Type': "application/vnd.openxmlformats-officedocument.wordprocessingml.document" ,
				},
				params: {
						'X-Amz-Security-Token': security_token.replace(/\%2B/g,'\+').replace(/\%2F/g,'\/').replace(/\%3D/g,'\='),
						'X-Amz-Algorithm': algorithm,
						'X-Amz-Date': date,
						'X-Amz-SignedHeaders': headers.replace(/\%3B/,';'),
						'X-Amz-Expires': 3600,
						'X-Amz-Credential': creds.replace(/\%2F/g,'\/'),
						'X-Amz-Signature': signature
				}
			})
			response.json({
				 msg: "Document still processing",
				 uploadResponse: res
			});

    } catch (e) { 
       console.log(e)
       response.status(500).json({e})
    }