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(VB.NET UWP/WinRT) Send JSON REST Request, Get JSON ResponseDemonstrates 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).
' This example will create a bucket in Google Cloud Storage. Dim success As Boolean ' It requires the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. Dim gAuth As New 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 Dim rest As New Chilkat.Rest ' Connect using TLS. Dim bAutoReconnect As Boolean = True success = Await rest.ConnectAsync("www.googleapis.com",443,True,bAutoReconnect) ' Provide the authentication credentials (i.e. the access key) success = rest.SetAuthGoogle(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.. Dim jsonReqBody As New Chilkat.JsonObject success = jsonReqBody.AddStringAt(-1,"name","chilkat-bucket-c") success = jsonReqBody.AddStringAt(-1,"kind","storage#bucket") success = jsonReqBody.AddStringAt(-1,"location","US") success = jsonReqBody.AddObjectAt(-1,"versioning") Dim pObjVersioning As Chilkat.JsonObject = jsonReqBody.ObjectOf("versioning") success = pObjVersioning.AddBoolAt(-1,"enabled",True) ' Show the HTTP request body we'll be sending. Debug.WriteLine(jsonReqBody.Emit()) ' Add the required query parameter. ' See https://cloud.google.com/storage/docs/json_api/v1/buckets/insert success = rest.AddQueryParam("project","chilkattest-1050") ' Add the Content-Type HTTP request header. success = rest.AddHeader("Content-Type","application/json; charset=UTF-8") Dim jsonResponseStr As String = Await rest.FullRequestStringAsync("POST","/storage/v1/b",jsonReqBody.Emit()) If (rest.LastMethodSuccess <> True) Then Debug.WriteLine(rest.LastErrorText) Exit Sub End If ' Show the JSON response. (See below for a sample JSON response.) Debug.WriteLine("Json Response: " & 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=" ' } ' |
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