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Lianja Requires Chilkat v11.0.0+

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).

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Lianja
llSuccess = .F.

//  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.

loGAuth = createobject("CkAuthGoogle")
//  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("CkRest")

//  Connect using TLS.
llBAutoReconnect = .T.
llSuccess = loRest.Connect("www.googleapis.com",443,.T.,llBAutoReconnect)

//  Provide the authentication credentials (i.e. the access key)
llSuccess = loRest.SetAuthGoogle(loGAuth)

//  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..
loJsonReqBody = createobject("CkJsonObject")
loJsonReqBody.AppendString("name","chilkat-bucket-c")
loJsonReqBody.AppendString("kind","storage#bucket")
loJsonReqBody.AppendString("location","US")

loObjVersioning = createobject("CkJsonObject")
loJsonReqBody.AppendObject2("versioning",loObjVersioning)
loObjVersioning.AppendBool("enabled",.T.)

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

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

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

lcJsonResponseStr = loRest.FullRequestString("POST","/storage/v1/b",loJsonReqBody.Emit())
if (loRest.LastMethodSuccess = .F.) then
    ? loRest.LastErrorText
    release loGAuth
    release loRest
    release loJsonReqBody
    release loObjVersioning
    return
endif

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

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


release loGAuth
release loRest
release loJsonReqBody
release loObjVersioning