Chilkat Online Tools

GetLambdaFunctionRecommendations delphiDll Example

AWS Compute Optimizer

var
rest: HCkRest;
success: Boolean;
authAws: HCkAuthAws;
json: HCkJsonObject;
sbRequestBody: HCkStringBuilder;
sbResponseBody: HCkStringBuilder;
respStatusCode: Integer;
jResp: HCkJsonObject;
accountId: PWideChar;
currentMemorySize: Integer;
currentPerformanceRisk: PWideChar;
finding: PWideChar;
functionArn: PWideChar;
functionVersion: PWideChar;
lastRefreshTimestamp: Integer;
lookbackPeriodInDays: Integer;
numberOfInvocations: Integer;
j: Integer;
count_j: Integer;
strVal: PWideChar;
memorySize: Integer;
rank: Integer;
v_Currency: PWideChar;
Value: Integer;
SavingsOpportunityPercentage: Integer;
k: Integer;
count_k: Integer;
name: PWideChar;
statistic: PWideChar;
value: Integer;
nextToken: PWideChar;
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 := 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,'compute-optimizer');
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
CkRest_SetAuthAws(rest,authAws);

// URL: https://compute-optimizer.us-west-2.amazonaws.com/
// Use the same region as specified above.
success := CkRest_Connect(rest,'compute-optimizer.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,'accountIds[0]','string');
CkJsonObject_UpdateString(json,'filters[0].name','string');
CkJsonObject_UpdateString(json,'filters[0].values[0]','string');
CkJsonObject_UpdateString(json,'functionArns[0]','string');
CkJsonObject_UpdateInt(json,'maxResults',123);
CkJsonObject_UpdateString(json,'nextToken','string');

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

// {
//   "accountIds": [
//     "string"
//   ],
//   "filters": [
//     {
//       "name": "string",
//       "values": [
//         "string"
//       ]
//     }
//   ],
//   "functionArns": [
//     "string"
//   ],
//   "maxResults": number,
//   "nextToken": "string"
// }

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

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;

jResp := CkJsonObject_Create();
CkJsonObject_LoadSb(jResp,sbResponseBody);

// 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

nextToken := CkJsonObject__stringOf(jResp,'nextToken');
i := 0;
count_i := CkJsonObject_SizeOfArray(jResp,'lambdaFunctionRecommendations');
while i < count_i do
  begin
    CkJsonObject_putI(jResp,i);
    accountId := CkJsonObject__stringOf(jResp,'lambdaFunctionRecommendations[i].accountId');
    currentMemorySize := CkJsonObject_IntOf(jResp,'lambdaFunctionRecommendations[i].currentMemorySize');
    currentPerformanceRisk := CkJsonObject__stringOf(jResp,'lambdaFunctionRecommendations[i].currentPerformanceRisk');
    finding := CkJsonObject__stringOf(jResp,'lambdaFunctionRecommendations[i].finding');
    functionArn := CkJsonObject__stringOf(jResp,'lambdaFunctionRecommendations[i].functionArn');
    functionVersion := CkJsonObject__stringOf(jResp,'lambdaFunctionRecommendations[i].functionVersion');
    lastRefreshTimestamp := CkJsonObject_IntOf(jResp,'lambdaFunctionRecommendations[i].lastRefreshTimestamp');
    lookbackPeriodInDays := CkJsonObject_IntOf(jResp,'lambdaFunctionRecommendations[i].lookbackPeriodInDays');
    numberOfInvocations := CkJsonObject_IntOf(jResp,'lambdaFunctionRecommendations[i].numberOfInvocations');
    j := 0;
    count_j := CkJsonObject_SizeOfArray(jResp,'lambdaFunctionRecommendations[i].findingReasonCodes');
    while j < count_j do
      begin
        CkJsonObject_putJ(jResp,j);
        strVal := CkJsonObject__stringOf(jResp,'lambdaFunctionRecommendations[i].findingReasonCodes[j]');
        j := j + 1;
      end;

    j := 0;
    count_j := CkJsonObject_SizeOfArray(jResp,'lambdaFunctionRecommendations[i].memorySizeRecommendationOptions');
    while j < count_j do
      begin
        CkJsonObject_putJ(jResp,j);
        memorySize := CkJsonObject_IntOf(jResp,'lambdaFunctionRecommendations[i].memorySizeRecommendationOptions[j].memorySize');
        rank := CkJsonObject_IntOf(jResp,'lambdaFunctionRecommendations[i].memorySizeRecommendationOptions[j].rank');
        v_Currency := CkJsonObject__stringOf(jResp,'lambdaFunctionRecommendations[i].memorySizeRecommendationOptions[j].savingsOpportunity.estimatedMonthlySavings.currency');
        Value := CkJsonObject_IntOf(jResp,'lambdaFunctionRecommendations[i].memorySizeRecommendationOptions[j].savingsOpportunity.estimatedMonthlySavings.value');
        SavingsOpportunityPercentage := CkJsonObject_IntOf(jResp,'lambdaFunctionRecommendations[i].memorySizeRecommendationOptions[j].savingsOpportunity.savingsOpportunityPercentage');
        k := 0;
        count_k := CkJsonObject_SizeOfArray(jResp,'lambdaFunctionRecommendations[i].memorySizeRecommendationOptions[j].projectedUtilizationMetrics');
        while k < count_k do
          begin
            CkJsonObject_putK(jResp,k);
            name := CkJsonObject__stringOf(jResp,'lambdaFunctionRecommendations[i].memorySizeRecommendationOptions[j].projectedUtilizationMetrics[k].name');
            statistic := CkJsonObject__stringOf(jResp,'lambdaFunctionRecommendations[i].memorySizeRecommendationOptions[j].projectedUtilizationMetrics[k].statistic');
            value := CkJsonObject_IntOf(jResp,'lambdaFunctionRecommendations[i].memorySizeRecommendationOptions[j].projectedUtilizationMetrics[k].value');
            k := k + 1;
          end;

        j := j + 1;
      end;

    j := 0;
    count_j := CkJsonObject_SizeOfArray(jResp,'lambdaFunctionRecommendations[i].utilizationMetrics');
    while j < count_j do
      begin
        CkJsonObject_putJ(jResp,j);
        name := CkJsonObject__stringOf(jResp,'lambdaFunctionRecommendations[i].utilizationMetrics[j].name');
        statistic := CkJsonObject__stringOf(jResp,'lambdaFunctionRecommendations[i].utilizationMetrics[j].statistic');
        value := CkJsonObject_IntOf(jResp,'lambdaFunctionRecommendations[i].utilizationMetrics[j].value');
        j := j + 1;
      end;

    i := i + 1;
  end;

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

// {
//   "lambdaFunctionRecommendations": [
//     {
//       "accountId": "string",
//       "currentMemorySize": number,
//       "currentPerformanceRisk": "string",
//       "finding": "string",
//       "findingReasonCodes": [
//         "string"
//       ],
//       "functionArn": "string",
//       "functionVersion": "string",
//       "lastRefreshTimestamp": number,
//       "lookbackPeriodInDays": number,
//       "memorySizeRecommendationOptions": [
//         {
//           "memorySize": number,
//           "projectedUtilizationMetrics": [
//             {
//               "name": "string",
//               "statistic": "string",
//               "value": number
//             }
//           ],
//           "rank": number,
//           "savingsOpportunity": {
//             "estimatedMonthlySavings": {
//               "currency": "string",
//               "value": number
//             },
//             "savingsOpportunityPercentage": number
//           }
//         }
//       ],
//       "numberOfInvocations": number,
//       "utilizationMetrics": [
//         {
//           "name": "string",
//           "statistic": "string",
//           "value": number
//         }
//       ]
//     }
//   ],
//   "nextToken": "string"
// }

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