Chilkat Online Tools

DescribeVolumes Delphi (ActiveX) Example

AWS OpsWorks

var
rest: TChilkatRest;
success: Integer;
authAws: TChilkatAuthAws;
json: TChilkatJsonObject;
sbRequestBody: TChilkatStringBuilder;
sbResponseBody: TChilkatStringBuilder;
respStatusCode: Integer;
jResp: TChilkatJsonObject;
AvailabilityZone: WideString;
Device: WideString;
Ec2VolumeId: WideString;
Encrypted: Integer;
InstanceId: WideString;
Iops: Integer;
MountPoint: WideString;
Name: WideString;
RaidArrayId: WideString;
Region: WideString;
Size: Integer;
Status: WideString;
VolumeId: WideString;
VolumeType: WideString;
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 := 'opsworks';
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
rest.SetAuthAws(authAws.ControlInterface);

// URL: https://opsworks.us-west-2.amazonaws.com/
// Use the same region as specified above.
success := rest.Connect('opsworks.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('InstanceId','string');
json.UpdateString('RaidArrayId','string');
json.UpdateString('StackId','string');
json.UpdateString('VolumeIds[0]','string');

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

// {
//   "InstanceId": "string",
//   "RaidArrayId": "string",
//   "StackId": "string",
//   "VolumeIds": [
//     "string"
//   ]
// }

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

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('Volumes');
while i < count_i do
  begin
    jResp.I := i;
    AvailabilityZone := jResp.StringOf('Volumes[i].AvailabilityZone');
    Device := jResp.StringOf('Volumes[i].Device');
    Ec2VolumeId := jResp.StringOf('Volumes[i].Ec2VolumeId');
    Encrypted := jResp.IntOf('Volumes[i].Encrypted');
    InstanceId := jResp.StringOf('Volumes[i].InstanceId');
    Iops := jResp.IntOf('Volumes[i].Iops');
    MountPoint := jResp.StringOf('Volumes[i].MountPoint');
    Name := jResp.StringOf('Volumes[i].Name');
    RaidArrayId := jResp.StringOf('Volumes[i].RaidArrayId');
    Region := jResp.StringOf('Volumes[i].Region');
    Size := jResp.IntOf('Volumes[i].Size');
    Status := jResp.StringOf('Volumes[i].Status');
    VolumeId := jResp.StringOf('Volumes[i].VolumeId');
    VolumeType := jResp.StringOf('Volumes[i].VolumeType');
    i := i + 1;
  end;

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

// {
//   "Volumes": [
//     {
//       "AvailabilityZone": "string",
//       "Device": "string",
//       "Ec2VolumeId": "string",
//       "Encrypted": boolean,
//       "InstanceId": "string",
//       "Iops": number,
//       "MountPoint": "string",
//       "Name": "string",
//       "RaidArrayId": "string",
//       "Region": "string",
//       "Size": number,
//       "Status": "string",
//       "VolumeId": "string",
//       "VolumeType": "string"
//     }
//   ]
// }