Xbase++

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.

Xbase++

LOCAL nSuccess
LOCAL oGAuth
LOCAL oRest
LOCAL nBAutoReconnect
LOCAL oXmlReqBody
LOCAL cResponseStr
LOCAL nResponseStatus

nSuccess := 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.

oGAuth := 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

oRest := CreateObject("Chilkat.Rest")

//  Connect using TLS.
nBAutoReconnect := 1
nSuccess := oRest:Connect("www.googleapis.com", 443, 1, nBAutoReconnect)

//  Provide the authentication credentials (i.e. the access key)
nSuccess := oRest:SetAuthGoogle(oGAuth)

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

//  Show the HTTP request body we'll be sending.
? oXmlReqBody: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.
nSuccess := oRest:AddHeader("Host", "chilkat-example-bucket.storage.googleapis.com")

//  The project ID is specified in an HTTP request header
nSuccess := oRest: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.
cResponseStr := oRest:FullRequestString("PUT", "/", oXmlReqBody:GetXml())
IF (oRest:LastMethodSuccess != 1)
    ? oRest:LastErrorText
    oGAuth:destroy()
    oRest:destroy()
    oXmlReqBody:destroy()
    RETURN
ENDIF

//  Check the response status code to make sure it is 200.
nResponseStatus := oRest:ResponseStatusCode
? "Response Status Code = " + Str(nResponseStatus)

oGAuth:destroy()
oRest:destroy()
oXmlReqBody:destroy()