PowerBuilder

Send JSON REST Request, Get JSON Response

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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). PowerBuilder

integer li_rc
integer li_Success
oleobject loo_GAuth
oleobject loo_Rest
integer li_BAutoReconnect
oleobject loo_JsonReqBody
oleobject loo_ObjVersioning
string ls_JsonResponseStr

li_Success = 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.

loo_GAuth = create oleobject
li_rc = loo_GAuth.ConnectToNewObject("Chilkat.AuthGoogle")
if li_rc < 0 then
    destroy loo_GAuth
    MessageBox("Error","Connecting to COM object failed")
    return
end if
// 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

loo_Rest = create oleobject
li_rc = loo_Rest.ConnectToNewObject("Chilkat.Rest")

// Connect using TLS.
li_BAutoReconnect = 1
li_Success = loo_Rest.Connect("www.googleapis.com",443,1,li_BAutoReconnect)

// Provide the authentication credentials (i.e. the access key)
li_Success = loo_Rest.SetAuthGoogle(loo_GAuth)

// 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..
loo_JsonReqBody = create oleobject
li_rc = loo_JsonReqBody.ConnectToNewObject("Chilkat.JsonObject")

loo_JsonReqBody.AppendString("name","chilkat-bucket-c")
loo_JsonReqBody.AppendString("kind","storage#bucket")
loo_JsonReqBody.AppendString("location","US")

loo_ObjVersioning = create oleobject
li_rc = loo_ObjVersioning.ConnectToNewObject("Chilkat.JsonObject")

loo_JsonReqBody.AppendObject2("versioning",loo_ObjVersioning)
loo_ObjVersioning.AppendBool("enabled",1)

// Show the HTTP request body we'll be sending.
Write-Debug loo_JsonReqBody.Emit()

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

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

ls_JsonResponseStr = loo_Rest.FullRequestString("POST","/storage/v1/b",loo_JsonReqBody.Emit())
if loo_Rest.LastMethodSuccess = 0 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_GAuth
    destroy loo_Rest
    destroy loo_JsonReqBody
    destroy loo_ObjVersioning
    return
end if

// Show the JSON response.  (See below for a sample JSON response.)
Write-Debug "Json Response: " + ls_JsonResponseStr

// {
//  "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="
// }
// 


destroy loo_GAuth
destroy loo_Rest
destroy loo_JsonReqBody
destroy loo_ObjVersioning