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GetEC2RecommendationProjectedMetrics delphiAx Example

AWS Compute Optimizer

var
rest: TChilkatRest;
success: Integer;
authAws: TChilkatAuthAws;
json: TChilkatJsonObject;
sbRequestBody: TChilkatStringBuilder;
sbResponseBody: TChilkatStringBuilder;
respStatusCode: Integer;
jResp: TChilkatJsonObject;
rank: Integer;
recommendedInstanceType: WideString;
j: Integer;
count_j: Integer;
name: WideString;
k: Integer;
count_k: Integer;
intVal: Integer;
i: Integer;
count_i: Integer;

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

rest := TChilkatRest.Create(Self);

authAws := TChilkatAuthAws.Create(Self);
authAws.AccessKey := 'AWS_ACCESS_KEY';
authAws.SecretKey := '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.)
authAws.Region := 'us-west-2';
authAws.ServiceName := 'compute-optimizer';
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
rest.SetAuthAws(authAws.ControlInterface);

// URL: https://compute-optimizer.us-west-2.amazonaws.com/
// Use the same region as specified above.
success := rest.Connect('compute-optimizer.us-west-2.amazonaws.com',443,1,1);
if (success <> 1) then
  begin
    Memo1.Lines.Add('ConnectFailReason: ' + IntToStr(rest.ConnectFailReason));
    Memo1.Lines.Add(rest.LastErrorText);
    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 := TChilkatJsonObject.Create(Self);
json.UpdateInt('endTime',123);
json.UpdateString('instanceArn','string');
json.UpdateInt('period',123);
json.UpdateString('recommendationPreferences.cpuVendorArchitectures[0]','string');
json.UpdateInt('startTime',123);
json.UpdateString('stat','string');

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

// {
//   "endTime": number,
//   "instanceArn": "string",
//   "period": number,
//   "recommendationPreferences": {
//     "cpuVendorArchitectures": [
//       "string"
//     ]
//   },
//   "startTime": number,
//   "stat": "string"
// }

rest.AddHeader('Content-Type','application/x-amz-json-1.0');
rest.AddHeader('X-Amz-Target','ComputeOptimizerService.GetEC2RecommendationProjectedMetrics');

sbRequestBody := TChilkatStringBuilder.Create(Self);
json.EmitSb(sbRequestBody.ControlInterface);
sbResponseBody := TChilkatStringBuilder.Create(Self);
success := rest.FullRequestSb('POST','/',sbRequestBody.ControlInterface,sbResponseBody.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;
respStatusCode := rest.ResponseStatusCode;
Memo1.Lines.Add('response status code = ' + IntToStr(respStatusCode));
if (respStatusCode <> 200) then
  begin
    Memo1.Lines.Add('Response Header:');
    Memo1.Lines.Add(rest.ResponseHeader);
    Memo1.Lines.Add('Response Body:');
    Memo1.Lines.Add(sbResponseBody.GetAsString());
    Exit;
  end;

jResp := TChilkatJsonObject.Create(Self);
jResp.LoadSb(sbResponseBody.ControlInterface);

// The following code parses the JSON response.
// A sample JSON response is shown below the sample code.

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

i := 0;
count_i := jResp.SizeOfArray('recommendedOptionProjectedMetrics');
while i < count_i do
  begin
    jResp.I := i;
    rank := jResp.IntOf('recommendedOptionProjectedMetrics[i].rank');
    recommendedInstanceType := jResp.StringOf('recommendedOptionProjectedMetrics[i].recommendedInstanceType');
    j := 0;
    count_j := jResp.SizeOfArray('recommendedOptionProjectedMetrics[i].projectedMetrics');
    while j < count_j do
      begin
        jResp.J := j;
        name := jResp.StringOf('recommendedOptionProjectedMetrics[i].projectedMetrics[j].name');
        k := 0;
        count_k := jResp.SizeOfArray('recommendedOptionProjectedMetrics[i].projectedMetrics[j].timestamps');
        while k < count_k do
          begin
            jResp.K := k;
            intVal := jResp.IntOf('recommendedOptionProjectedMetrics[i].projectedMetrics[j].timestamps[k]');
            k := k + 1;
          end;

        k := 0;
        count_k := jResp.SizeOfArray('recommendedOptionProjectedMetrics[i].projectedMetrics[j].values');
        while k < count_k do
          begin
            jResp.K := k;
            intVal := jResp.IntOf('recommendedOptionProjectedMetrics[i].projectedMetrics[j].values[k]');
            k := k + 1;
          end;

        j := j + 1;
      end;

    i := i + 1;
  end;

// A sample JSON response body parsed by the above code:

// {
//   "recommendedOptionProjectedMetrics": [
//     {
//       "projectedMetrics": [
//         {
//           "name": "string",
//           "timestamps": [
//             number
//           ],
//           "values": [
//             number
//           ]
//         }
//       ],
//       "rank": number,
//       "recommendedInstanceType": "string"
//     }
//   ]
// }