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Send XML REST Request, Get Response with No Body (Google Cloud Storage)

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Demonstrates sending a RESTful XML request, and receiving a response where the expected response is a header with no body (Content-Length = 0). This example will create a bucket in Google Cloud Storage using the Google Cloud Storage XML API.

See Create a Bucket using the XML API for additional request options.

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llSuccess = .F.

// This example will create a bucket in Google Cloud Storage using the XML API.

// It requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

loGAuth = createobject("CkAuthGoogle")
// Obtain an access token as shown in one of the following examples:
// See Get Access Token using a Service Account JSON Key
// See Get Access Token using a P12 File

loRest = createobject("CkRest")

// Connect using TLS.
llBAutoReconnect = .T.
llSuccess = loRest.Connect("www.googleapis.com",443,.T.,llBAutoReconnect)

// Provide the authentication credentials (i.e. the access key)
llSuccess = loRest.SetAuthGoogle(loGAuth)

// Build the XML request body for creating a bucket.
// See https://cloud.google.com/storage/docs/xml-api/put-bucket-create
loXmlReqBody = createobject("CkXml")
loXmlReqBody.Tag = "CreateBucketConfiguration"
loXmlReqBody.NewChild2("LocationConstraint","us")
loXmlReqBody.NewChild2("StorageClass","STANDARD")

// Show the HTTP request body we'll be sending.
? loXmlReqBody.GetXml()

// There are no query parameters...

// The HOST header must be specified, because it needs to be different than
// the domain previously passed to the Connect method.
// The name of the bucket is the 1st part of the HOST header.
llSuccess = loRest.AddHeader("Host","chilkat-example-bucket.storage.googleapis.com")

// The project ID is specified in an HTTP request header
llSuccess = loRest.AddHeader("x-goog-project-id","chilkattest-1050")

// In this case, the response body is expected to be empty.  We can still
// call FullRequestString.  We expect an empty string to be returned.
lcResponseStr = loRest.FullRequestString("PUT","/",loXmlReqBody.GetXml())
if (loRest.LastMethodSuccess <> .T.) then
    ? loRest.LastErrorText
    release loGAuth
    release loRest
    release loXmlReqBody
    return
endif

// Check the response status code to make sure it is 200.
lnResponseStatus = loRest.ResponseStatusCode
? "Response Status Code = " + str(lnResponseStatus)


release loGAuth
release loRest
release loXmlReqBody