(VB.NET UWP/WinRT) Google Cloud SQL - Start Database Instance

Demonstrates how to start a Google Cloud SQL database instance.

For more information, see https://cloud.google.com/sql/docs/mysql/start-stop-restart-instance

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.


' In this example, Get Google Cloud SQL OAuth2 Access Token, 
' the service account access token was saved to a text file.  This example fetches the access token from the file..
Dim sbToken As New Chilkat.StringBuilder
sbToken.LoadFile("qa_data/tokens/google_cloud_sql_access_token.txt","utf-8")


Dim http As New Chilkat.Http
Dim success As Boolean

' Implements the following CURL command:

' curl -X PATCH \
' -H "Authorization: Bearer "$(gcloud auth print-access-token) \
' -H "Content-Type: application/json; charset=utf-8" \
' -d '{
'   "settings": {
'     "activationPolicy": "ALWAYS" 
'   }
' }' \
' https://www.googleapis.com/sql/v1beta4/projects/project-id/instances/instance-id

' Use this online tool to generate code from sample JSON:
' Generate Code to Create JSON

' The following JSON is sent in the request body.

' {
'   "settings": {
'     "activationPolicy": "ALWAYS"
'   }
' }

' Use "ALWAYS" to start an instance.  Use "NEVER" to stop an instance.
Dim json As New Chilkat.JsonObject
json.UpdateString("settings.activationPolicy","ALWAYS")

' Causes the "Authorization: Bearer "$(gcloud auth print-access-token)" header to be added.
http.AuthToken = sbToken.GetAsString()

http.SetRequestHeader("Content-Type","application/json; charset=utf-8")

Dim sbRequestBody As New Chilkat.StringBuilder
json.EmitSb(sbRequestBody)

' Replace "project-id" with your actual Google project ID.
' Replace "instance-id" with your database instance ID, which is the name of your database.  (For example, when I created my test database I named it "chilkat", and therefore my instance-id is "chilkat".)
Dim resp As Chilkat.HttpResponse = Await http.PTextSbAsync("PATCH","https://www.googleapis.com/sql/v1beta4/projects/project-id/instances/instance-id",sbRequestBody,"utf-8","application/json",False,False)
If (http.LastMethodSuccess = False) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


Dim sbResponseBody As New Chilkat.StringBuilder
resp.GetBodySb(sbResponseBody)
Dim jResp As New Chilkat.JsonObject
jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = False

Debug.WriteLine("Response Body:")
Debug.WriteLine(jResp.Emit())

Dim respStatusCode As Integer = resp.StatusCode
Debug.WriteLine("Response Status Code = " & respStatusCode)
If (respStatusCode = 401) Then
    Debug.WriteLine("It may be that your access token expired.")
    Debug.WriteLine("Try refreshing the access token by re-fetching it.")
End If

If (respStatusCode >= 400) Then
    Debug.WriteLine("Response Header:")
    Debug.WriteLine(resp.Header)
    Debug.WriteLine("Failed.")

    Exit Sub
End If



' Sample JSON response:
' (Sample code for parsing the JSON response is shown below)

' {
'   "kind": "sql#operation",
'   "targetLink": "https://www.googleapis.com/sql/v1beta4/projects/project-id/instances/instance-id",
'   "status": "PENDING",
'   "user": "user@example.com",
'   "insertTime": "2020-01-20T21:30:35.667Z",
'   "operationType": "UPDATE",
'   "name": "operation-id",
'   "targetId": "instance-id",
'   "selfLink": "https://www.googleapis.com/sql/v1beta4/projects/project-id/operations/operation-id",
'   "targetProject": "project-id"
' }

' Sample code for parsing the JSON response...
' Use the following online tool to generate parsing code from sample JSON:
' Generate Parsing Code from JSON




Dim kind As String = jResp.StringOf("kind")
Dim targetLink As String = jResp.StringOf("targetLink")
Dim status As String = jResp.StringOf("status")
Dim user As String = jResp.StringOf("user")
Dim insertTime As String = jResp.StringOf("insertTime")
Dim operationType As String = jResp.StringOf("operationType")
Dim name As String = jResp.StringOf("name")
Dim targetId As String = jResp.StringOf("targetId")
Dim selfLink As String = jResp.StringOf("selfLink")
Dim targetProject As String = jResp.StringOf("targetProject")