Google Cloud SQL - Start Database Instance

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var success = false;

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

var http = new CkHttp();

// 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.
var json = new CkJsonObject();
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");

var sbRequestBody = new CkStringBuilder();
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".)
var resp = new CkHttpResponse();
success = http.HttpSb("PATCH","https://www.googleapis.com/sql/v1beta4/projects/project-id/instances/instance-id",sbRequestBody,"utf-8","application/json",resp);
if (success == false) {
    console.log(http.LastErrorText);
    return;
}

var sbResponseBody = new CkStringBuilder();
resp.GetBodySb(sbResponseBody);
var jResp = new CkJsonObject();
jResp.LoadSb(sbResponseBody);
jResp.EmitCompact = false;

console.log("Response Body:");
console.log(jResp.Emit());

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

if (respStatusCode >= 400) {
    console.log("Response Header:");
    console.log(resp.Header);
    console.log("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

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