Xbase++ Requires Chilkat v11.0.0+

Send JSON REST Request, Get JSON Response

See more REST Examples

Demonstrates sending a RESTful JSON request, and receiving a JSON response. This example will create a bucket in Google Cloud Storage (which involves sending and receiving JSON). Xbase++

LOCAL nSuccess
LOCAL oGAuth
LOCAL oRest
LOCAL nBAutoReconnect
LOCAL oJsonReqBody
LOCAL oObjVersioning
LOCAL cJsonResponseStr

nSuccess := 0

//  This example will create a bucket in Google Cloud Storage.

//  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 JSON request body for creating a bucket.
//  The only required property is the "name", but we'll add more
//  to make a better example..
oJsonReqBody := CreateObject("Chilkat.JsonObject")
oJsonReqBody:AppendString("name", "chilkat-bucket-c")
oJsonReqBody:AppendString("kind", "storage#bucket")
oJsonReqBody:AppendString("location", "US")

oObjVersioning := CreateObject("Chilkat.JsonObject")
oJsonReqBody:AppendObject2("versioning", oObjVersioning)
oObjVersioning:AppendBool("enabled", 1)

//  Show the HTTP request body we'll be sending.
? oJsonReqBody:Emit()

//  Add the required query parameter.
//  See https://cloud.google.com/storage/docs/json_api/v1/buckets/insert
nSuccess := oRest:AddQueryParam("project", "chilkattest-1050")

//  Add the Content-Type HTTP request header.
nSuccess := oRest:AddHeader("Content-Type", "application/json; charset=UTF-8")

cJsonResponseStr := oRest:FullRequestString("POST", "/storage/v1/b", oJsonReqBody:Emit())
IF (oRest:LastMethodSuccess == 0)
    ? oRest:LastErrorText
    oGAuth:destroy()
    oRest:destroy()
    oJsonReqBody:destroy()
    oObjVersioning:destroy()
    RETURN
ENDIF

//  Show the JSON response.  (See below for a sample JSON response.)
? "Json Response: " + cJsonResponseStr

//  {
//   "kind": "storage#bucket",
//   "id": "chilkat-bucket-c",
//   "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-bucket-c",
//   "projectNumber": "999992999999",
//   "name": "chilkat-bucket-c",
//   "timeCreated": "2016-04-29T21:08:10.451Z",
//   "updated": "2016-04-29T21:08:10.451Z",
//   "metageneration": "1",
//   "owner": {
//    "entity": "project-owners-999992999999"
//   },
//   "location": "US",
//   "versioning": {
//    "enabled": true
//   },
//   "storageClass": "STANDARD",
//   "etag": "CAE="
//  }
//

oGAuth:destroy()
oRest:destroy()
oJsonReqBody:destroy()
oObjVersioning:destroy()