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(PowerBuilder) 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 ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_Rest
integer li_BTls
integer li_Port
integer li_BAutoReconnect
integer li_Success
oleobject loo_AuthAws
oleobject loo_Fac
string ls_FileContents
string ls_ResponseBodyStr
integer li_StatusCode

//  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.

loo_Rest = create oleobject
li_rc = loo_Rest.ConnectToNewObject("Chilkat_9_5_0.Rest")
if li_rc < 0 then
    destroy loo_Rest
    MessageBox("Error","Connecting to COM object failed")
    return
end if

//  Connect to the Amazon AWS REST server.
li_BTls = 1
li_Port = 443
li_BAutoReconnect = 1
//  The file is uploaded to the bucket named "chilkat100", which becomes part of the domain:
li_Success = loo_Rest.Connect("chilkat100.s3.amazonaws.com",li_Port,li_BTls,li_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.
loo_AuthAws = create oleobject
li_rc = loo_AuthAws.ConnectToNewObject("Chilkat_9_5_0.AuthAws")

loo_AuthAws.AccessKey = "AWS_ACCESS_KEY"
loo_AuthAws.SecretKey = "AWS_SECRET_KEY"
loo_AuthAws.ServiceName = "s3"

//  For AWS Signature Version 2, the following two properties need to be set:
loo_AuthAws.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.
loo_AuthAws.CanonicalizedResourceV2 = "/chilkat100/hamlet_play.xml"

li_Success = loo_Rest.SetAuthAws(loo_AuthAws)

//  Load a text file into memory.
loo_Fac = create oleobject
li_rc = loo_Fac.ConnectToNewObject("Chilkat_9_5_0.FileAccess")

ls_FileContents = loo_Fac.ReadEntireTextFile("qa_data/xml/hamlet.xml","utf-8")
if loo_Fac.LastMethodSuccess <> 1 then
    Write-Debug loo_Fac.LastErrorText
    destroy loo_Rest
    destroy loo_AuthAws
    destroy loo_Fac
    return
end if

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

//  Indicate the Content-Type of our upload.  (This is optional)
li_Success = loo_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)
li_Success = loo_Rest.AddHeader("Expect","100-continue")

//  Upload the file to Amazon S3.
ls_ResponseBodyStr = loo_Rest.FullRequestString("PUT","/hamlet_play.xml",ls_FileContents)
if loo_Rest.LastMethodSuccess <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Rest
    destroy loo_AuthAws
    destroy loo_Fac
    return
end if

//  Did we get a 200 response indicating success?
li_StatusCode = loo_Rest.ResponseStatusCode
if li_StatusCode <> 200 then
    Write-Debug "Error response: " + ls_ResponseBodyStr
    Write-Debug "Status code: " + string(li_StatusCode) + ", Status text: " + loo_Rest.ResponseStatusText
    destroy loo_Rest
    destroy loo_AuthAws
    destroy loo_Fac
    return
end if

Write-Debug "File successfully uploaded."


destroy loo_Rest
destroy loo_AuthAws
destroy loo_Fac

 

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