(PowerShell) Create S3 Pre-Signed URL for Upload

Demonstrates how to generate a pre-signed URL for S3 uploads.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# Note: This example requires Chilkat v9.5.0.83 or greater.

$http = New-Object Chilkat.Http

$http.AwsAccessKey = "AWS_ACCESS_KEY"
$http.AwsSecretKey = "AWS_SECRET_KEY"

# Make sure to set your AWS region correctly
$http.AwsRegion = "us-east-1"

$bucketName = "chilkat200"
$objectName = "starfish/starfish.jpg"
$awsService = "s3"
$httpVerb = "PUT"

# The signed URL will be valid for this number of seconds:
$numSecondsValid = 86400

# Choose between a URL beginning with "http://" or "https://"...
$bUseHttps = $false

# Generate the pre-signed URL
$preSignedUrl = $http.S3_GenPresignedUrl($httpVerb,$bUseHttps,$bucketName,$objectName,$numSecondsValid,$awsService)
if ($http.LastMethodSuccess -eq $false) {
    $($http.LastErrorText)
    exit
}

$("Presigned URL for Upload: " + $preSignedUrl)

# Here's an example of a pre-signed URL
# 
# http://chilkat200.s3.amazonaws.com/starfish/starfish.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIBJLOVZVXAU2AFUA%2F20200623%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20200623T234049Z&X-Amz-Expires=86400&X-Amz-SignedHeaders=host&X-Amz-Signature=xxxxxeaea071178d772856c0a4e4c0114a8d9992f0d0812955e490d0exxxxxxx
# 

# You can use the pre-signed URL to upload from Chilkat
# For example, upload by streaming from a local file
$resp = $http.PFile("PUT",$preSignedUrl,"qa_data/jpg/starfish.jpg","image/jpg",$false,$false)
if ($http.LastMethodSuccess -eq $false) {
    $($http.LastErrorText)
    exit
}

$("response status code = " + $resp.StatusCode)
$("response body size: " + $resp.ContentLength)
if ($resp.ContentLength -gt 0) {
    $("response body:")
    $($resp.BodyStr)
}