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

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.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

LOCAL lnSuccess
LOCAL loGAuth
LOCAL loRest
LOCAL lnBAutoReconnect
LOCAL loXmlReqBody
LOCAL lcResponseStr
LOCAL lnResponseStatus

*  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('Chilkat_9_5_0.AuthGoogle')
*  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('Chilkat_9_5_0.Rest')

*  Connect using TLS.
lnBAutoReconnect = 1
lnSuccess = loRest.Connect("www.googleapis.com",443,1,lnBAutoReconnect)

*  Provide the authentication credentials (i.e. the access key)
lnSuccess = 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('Chilkat_9_5_0.Xml')
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.
lnSuccess = loRest.AddHeader("Host","chilkat-example-bucket.storage.googleapis.com")

*  The project ID is specified in an HTTP request header
lnSuccess = 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 <> 1) THEN
    ? loRest.LastErrorText
    RELEASE loGAuth
    RELEASE loRest
    RELEASE loXmlReqBody
    CANCEL
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


 

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