Visual FoxPro

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

See more REST Examples

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.

Visual FoxPro

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

lnSuccess = 0

* 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.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.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.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