DescribeVolumes Delphi (ActiveX) Example
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"
// }
// ]
// }