(Ruby) S3 Upload String using AWS Signature Version 2

Example to upload the contents of a string to the Amazon S3 service, using the older AWS Signature Version 2.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# Demonstrates how to use older AWS S3 Signature Version 2 for uploading the contents
# of a string variable to an object in a bucket.

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

rest = Chilkat::CkRest.new()

# Connect to the Amazon AWS REST server.
bTls = true
port = 443
bAutoReconnect = true
# The file is uploaded to the bucket named "chilkat100", which becomes part of the domain:
success = rest.Connect("chilkat100.s3.amazonaws.com",port,bTls,bAutoReconnect)

# ----------------------------------------------------------------------------
# Important: For buckets created in regions outside us-east-1,
# there are three important changes that need to be made.
# See Working with S3 Buckets in Non-us-east-1 Regions for the details.
# ----------------------------------------------------------------------------

# Provide AWS credentials for the REST call.
authAws = Chilkat::CkAuthAws.new()
authAws.put_AccessKey("AWS_ACCESS_KEY")
authAws.put_SecretKey("AWS_SECRET_KEY")
authAws.put_ServiceName("s3")

# For AWS Signature Version 2, the following two properties need to be set:
authAws.put_SignatureVersion(2)
# See http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html#ConstructingTheCanonicalizedResourceElement
# The bucket is "chilkat100", and the uriPath is "/hamlet_play.xml", which must match
# the URI path passed to the FullRequestString method below.
authAws.put_CanonicalizedResourceV2("/chilkat100/hamlet_play.xml")

success = rest.SetAuthAws(authAws)

# Load a text file into memory.
fac = Chilkat::CkFileAccess.new()
fileContents = fac.readEntireTextFile("qa_data/xml/hamlet.xml","utf-8")
if (fac.get_LastMethodSuccess() != true)
    print fac.lastErrorText() + "\n";
    exit
end

# To send the file in gzip or deflate compressed format, set the Content-Encoding request
# header to "gzip" or "deflate".  (this is optional)
success = rest.AddHeader("Content-Encoding","gzip")

# Indicate the Content-Type of our upload.  (This is optional)
success = rest.AddHeader("Content-Type","text/xml")

# We can add an "Expect: 100-continue" header so that if the request is rejected
# by the server immediately after receiving the request header, it can respond
# and the client (Chilkat) can avoid sending the file data.
# (this is optional)
success = rest.AddHeader("Expect","100-continue")

# Upload the file to Amazon S3.
responseBodyStr = rest.fullRequestString("PUT","/hamlet_play.xml",fileContents)
if (rest.get_LastMethodSuccess() != true)
    print rest.lastErrorText() + "\n";
    exit
end

# Did we get a 200 response indicating success?
statusCode = rest.get_ResponseStatusCode()
if (statusCode != 200)
    print "Error response: " + responseBodyStr + "\n";
    print "Status code: " + statusCode.to_s() + ", Status text: " + rest.responseStatusText() + "\n";
    exit
end

print "File successfully uploaded." + "\n";