(Mono C#) 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

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// 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..
Chilkat.StringBuilder sbToken = new Chilkat.StringBuilder();
sbToken.LoadFile("qa_data/tokens/google_cloud_sql_access_token.txt","utf-8");

Chilkat.Http http = new Chilkat.Http();
bool success;

// 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.
Chilkat.JsonObject json = 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");

Chilkat.StringBuilder sbRequestBody = 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".)
Chilkat.HttpResponse resp = http.PTextSb("PATCH","https://www.googleapis.com/sql/v1beta4/projects/project-id/instances/instance-id",sbRequestBody,"utf-8","application/json",false,false);
if (http.LastMethodSuccess == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Chilkat.StringBuilder sbResponseBody = new Chilkat.StringBuilder();
resp.GetBodySb(sbResponseBody);
Chilkat.JsonObject jResp = new Chilkat.JsonObject();
jResp.LoadSb(sbResponseBody);
jResp.EmitCompact = false;

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

int respStatusCode = resp.StatusCode;
Debug.WriteLine("Response Status Code = " + Convert.ToString(respStatusCode));
if (respStatusCode == 401) {
    Debug.WriteLine("It may be that your access token expired.");
    Debug.WriteLine("Try refreshing the access token by re-fetching it.");
}

if (respStatusCode >= 400) {
    Debug.WriteLine("Response Header:");
    Debug.WriteLine(resp.Header);
    Debug.WriteLine("Failed.");

    return;
}

// 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

string kind = jResp.StringOf("kind");
string targetLink = jResp.StringOf("targetLink");
string status = jResp.StringOf("status");
string user = jResp.StringOf("user");
string insertTime = jResp.StringOf("insertTime");
string operationType = jResp.StringOf("operationType");
string name = jResp.StringOf("name");
string targetId = jResp.StringOf("targetId");
string selfLink = jResp.StringOf("selfLink");
string targetProject = jResp.StringOf("targetProject");