Chilkat Online Tools

DescribeSavingsPlanRates delphiDll Example

AWS Savings Plans

var
rest: HCkRest;
success: Boolean;
authAws: HCkAuthAws;
json: HCkJsonObject;
sbRequestBody: HCkStringBuilder;
sbResponseBody: HCkStringBuilder;
respStatusCode: Integer;
jResp: HCkJsonObject;
v_currency: PWideChar;
operation: PWideChar;
productType: PWideChar;
rate: PWideChar;
serviceCode: PWideChar;
unit: PWideChar;
usageType: PWideChar;
j: Integer;
count_j: Integer;
name: PWideChar;
value: PWideChar;
nextToken: PWideChar;
savingsPlanId: 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,'savingsplans');
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
CkRest_SetAuthAws(rest,authAws);

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

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

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

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

sbRequestBody := CkStringBuilder_Create();
CkJsonObject_EmitSb(json,sbRequestBody);
sbResponseBody := CkStringBuilder_Create();
success := CkRest_FullRequestSb(rest,'POST','/DescribeSavingsPlanRates',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');
savingsPlanId := CkJsonObject__stringOf(jResp,'savingsPlanId');
i := 0;
count_i := CkJsonObject_SizeOfArray(jResp,'searchResults');
while i < count_i do
  begin
    CkJsonObject_putI(jResp,i);
    v_currency := CkJsonObject__stringOf(jResp,'searchResults[i].currency');
    operation := CkJsonObject__stringOf(jResp,'searchResults[i].operation');
    productType := CkJsonObject__stringOf(jResp,'searchResults[i].productType');
    rate := CkJsonObject__stringOf(jResp,'searchResults[i].rate');
    serviceCode := CkJsonObject__stringOf(jResp,'searchResults[i].serviceCode');
    unit := CkJsonObject__stringOf(jResp,'searchResults[i].unit');
    usageType := CkJsonObject__stringOf(jResp,'searchResults[i].usageType');
    j := 0;
    count_j := CkJsonObject_SizeOfArray(jResp,'searchResults[i].properties');
    while j < count_j do
      begin
        CkJsonObject_putJ(jResp,j);
        name := CkJsonObject__stringOf(jResp,'searchResults[i].properties[j].name');
        value := CkJsonObject__stringOf(jResp,'searchResults[i].properties[j].value');
        j := j + 1;
      end;

    i := i + 1;
  end;

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

// {
//   "nextToken": "string",
//   "savingsPlanId": "string",
//   "searchResults": [
//     {
//       "currency": "string",
//       "operation": "string",
//       "productType": "string",
//       "properties": [
//         {
//           "name": "string",
//           "value": "string"
//         }
//       ],
//       "rate": "string",
//       "serviceCode": "string",
//       "unit": "string",
//       "usageType": "string"
//     }
//   ]
// }

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