Chilkat Online Tools

SetLoadBasedAutoScaling delphiDll Example

AWS OpsWorks

var
rest: HCkRest;
success: Boolean;
authAws: HCkAuthAws;
json: HCkJsonObject;
sbRequestBody: HCkStringBuilder;
sbResponseBody: HCkStringBuilder;
respStatusCode: Integer;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

rest := CkRest_Create();

authAws := CkAuthAws_Create();
CkAuthAws_putAccessKey(authAws,'AWS_ACCESS_KEY');
CkAuthAws_putSecretKey(authAws,'AWS_SECRET_KEY');

// Don't forget to change the region to your particular region. (Also make the same change in the call to Connect below.)
CkAuthAws_putRegion(authAws,'us-west-2');
CkAuthAws_putServiceName(authAws,'opsworks');
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
CkRest_SetAuthAws(rest,authAws);

// URL: https://opsworks.us-west-2.amazonaws.com/
// Use the same region as specified above.
success := CkRest_Connect(rest,'opsworks.us-west-2.amazonaws.com',443,True,True);
if (success <> True) then
  begin
    Memo1.Lines.Add('ConnectFailReason: ' + IntToStr(CkRest_getConnectFailReason(rest)));
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

// The following code creates the JSON request body.
// The JSON created by this code is shown below.

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

json := CkJsonObject_Create();
CkJsonObject_UpdateString(json,'DownScaling.Alarms[0]','string');
CkJsonObject_UpdateInt(json,'DownScaling.CpuThreshold',123);
CkJsonObject_UpdateInt(json,'DownScaling.IgnoreMetricsTime',123);
CkJsonObject_UpdateInt(json,'DownScaling.InstanceCount',123);
CkJsonObject_UpdateInt(json,'DownScaling.LoadThreshold',123);
CkJsonObject_UpdateInt(json,'DownScaling.MemoryThreshold',123);
CkJsonObject_UpdateInt(json,'DownScaling.ThresholdsWaitTime',123);
CkJsonObject_UpdateInt(json,'Enable',123);
CkJsonObject_UpdateString(json,'LayerId','string');
CkJsonObject_UpdateString(json,'UpScaling.Alarms[0]','string');
CkJsonObject_UpdateInt(json,'UpScaling.CpuThreshold',123);
CkJsonObject_UpdateInt(json,'UpScaling.IgnoreMetricsTime',123);
CkJsonObject_UpdateInt(json,'UpScaling.InstanceCount',123);
CkJsonObject_UpdateInt(json,'UpScaling.LoadThreshold',123);
CkJsonObject_UpdateInt(json,'UpScaling.MemoryThreshold',123);
CkJsonObject_UpdateInt(json,'UpScaling.ThresholdsWaitTime',123);

// The JSON request body created by the above code:

// {
//   "DownScaling": {
//     "Alarms": [
//       "string"
//     ],
//     "CpuThreshold": number,
//     "IgnoreMetricsTime": number,
//     "InstanceCount": number,
//     "LoadThreshold": number,
//     "MemoryThreshold": number,
//     "ThresholdsWaitTime": number
//   },
//   "Enable": boolean,
//   "LayerId": "string",
//   "UpScaling": {
//     "Alarms": [
//       "string"
//     ],
//     "CpuThreshold": number,
//     "IgnoreMetricsTime": number,
//     "InstanceCount": number,
//     "LoadThreshold": number,
//     "MemoryThreshold": number,
//     "ThresholdsWaitTime": number
//   }
// }

CkRest_AddHeader(rest,'Content-Type','application/x-amz-json-1.1');
CkRest_AddHeader(rest,'X-Amz-Target','OpsWorks_20130218.SetLoadBasedAutoScaling');

sbRequestBody := CkStringBuilder_Create();
CkJsonObject_EmitSb(json,sbRequestBody);
sbResponseBody := CkStringBuilder_Create();
success := CkRest_FullRequestSb(rest,'POST','/',sbRequestBody,sbResponseBody);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;
respStatusCode := CkRest_getResponseStatusCode(rest);
Memo1.Lines.Add('response status code = ' + IntToStr(respStatusCode));
if (respStatusCode <> 200) then
  begin
    Memo1.Lines.Add('Response Header:');
    Memo1.Lines.Add(CkRest__responseHeader(rest));
    Memo1.Lines.Add('Response Body:');
    Memo1.Lines.Add(CkStringBuilder__getAsString(sbResponseBody));
    Exit;
  end;

// If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.

CkRest_Dispose(rest);
CkAuthAws_Dispose(authAws);
CkJsonObject_Dispose(json);
CkStringBuilder_Dispose(sbRequestBody);
CkStringBuilder_Dispose(sbResponseBody);