Chilkat Online Tools

StartSnapshot delphiAx Example

Amazon Elastic Block Store

var
rest: TChilkatRest;
success: Integer;
authAws: TChilkatAuthAws;
json: TChilkatJsonObject;
sbRequestBody: TChilkatStringBuilder;
sbResponseBody: TChilkatStringBuilder;
respStatusCode: Integer;
jResp: TChilkatJsonObject;
Key: WideString;
Value: WideString;
BlockSize: Integer;
Description: WideString;
KmsKeyArn: WideString;
OwnerId: WideString;
ParentSnapshotId: WideString;
SnapshotId: WideString;
StartTime: Integer;
Status: WideString;
VolumeSize: 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 := 'ebs';
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
rest.SetAuthAws(authAws.ControlInterface);

// URL: https://ebs.us-west-2.amazonaws.com/
// Use the same region as specified above.
success := rest.Connect('ebs.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.UpdateString('ClientToken','string');
json.UpdateString('Description','string');
json.UpdateInt('Encrypted',123);
json.UpdateString('KmsKeyArn','string');
json.UpdateString('ParentSnapshotId','string');
json.UpdateString('Tags[0].Key','string');
json.UpdateString('Tags[0].Value','string');
json.UpdateInt('Timeout',123);
json.UpdateInt('VolumeSize',123);

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

// {
//   "ClientToken": "string",
//   "Description": "string",
//   "Encrypted": boolean,
//   "KmsKeyArn": "string",
//   "ParentSnapshotId": "string",
//   "Tags": [
//     {
//       "Key": "string",
//       "Value": "string"
//     }
//   ],
//   "Timeout": number,
//   "VolumeSize": number
// }

rest.AddHeader('Content-Type','application/x-amz-json-1.1');
rest.AddHeader('X-Amz-Target','StartSnapshot');

sbRequestBody := TChilkatStringBuilder.Create(Self);
json.EmitSb(sbRequestBody.ControlInterface);
sbResponseBody := TChilkatStringBuilder.Create(Self);
success := rest.FullRequestSb('POST','/snapshots',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

BlockSize := jResp.IntOf('BlockSize');
Description := jResp.StringOf('Description');
KmsKeyArn := jResp.StringOf('KmsKeyArn');
OwnerId := jResp.StringOf('OwnerId');
ParentSnapshotId := jResp.StringOf('ParentSnapshotId');
SnapshotId := jResp.StringOf('SnapshotId');
StartTime := jResp.IntOf('StartTime');
Status := jResp.StringOf('Status');
VolumeSize := jResp.IntOf('VolumeSize');
i := 0;
count_i := jResp.SizeOfArray('Tags');
while i < count_i do
  begin
    jResp.I := i;
    Key := jResp.StringOf('Tags[i].Key');
    Value := jResp.StringOf('Tags[i].Value');
    i := i + 1;
  end;

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

// {
//   "BlockSize": number,
//   "Description": "string",
//   "KmsKeyArn": "string",
//   "OwnerId": "string",
//   "ParentSnapshotId": "string",
//   "SnapshotId": "string",
//   "StartTime": number,
//   "Status": "string",
//   "Tags": [
//     {
//       "Key": "string",
//       "Value": "string"
//     }
//   ],
//   "VolumeSize": number
// }