DescribeInstances Delphi (DLL) Example
var
rest: HCkRest;
success: Boolean;
authAws: HCkAuthAws;
json: HCkJsonObject;
sbRequestBody: HCkStringBuilder;
sbResponseBody: HCkStringBuilder;
respStatusCode: Integer;
jResp: HCkJsonObject;
AgentVersion: PWideChar;
AmiId: PWideChar;
Architecture: PWideChar;
Arn: PWideChar;
AutoScalingType: PWideChar;
AvailabilityZone: PWideChar;
CreatedAt: PWideChar;
EbsOptimized: Integer;
Ec2InstanceId: PWideChar;
EcsClusterArn: PWideChar;
EcsContainerInstanceArn: PWideChar;
ElasticIp: PWideChar;
Hostname: PWideChar;
InfrastructureClass: PWideChar;
InstallUpdatesOnBoot: Integer;
InstanceId: PWideChar;
InstanceProfileArn: PWideChar;
InstanceType: PWideChar;
LastServiceErrorId: PWideChar;
Os: PWideChar;
Platform: PWideChar;
PrivateDns: PWideChar;
PrivateIp: PWideChar;
PublicDns: PWideChar;
PublicIp: PWideChar;
RegisteredBy: PWideChar;
ReportedAgentVersion: PWideChar;
Family: PWideChar;
Name: PWideChar;
Version: PWideChar;
RootDeviceType: PWideChar;
RootDeviceVolumeId: PWideChar;
SshHostDsaKeyFingerprint: PWideChar;
SshHostRsaKeyFingerprint: PWideChar;
SshKeyName: PWideChar;
StackId: PWideChar;
Status: PWideChar;
SubnetId: PWideChar;
Tenancy: PWideChar;
VirtualizationType: PWideChar;
j: Integer;
count_j: Integer;
DeviceName: PWideChar;
DeleteOnTermination: Integer;
Iops: Integer;
SnapshotId: PWideChar;
VolumeSize: Integer;
VolumeType: PWideChar;
NoDevice: PWideChar;
VirtualName: PWideChar;
strVal: 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,'opsworks');
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
CkRest_SetAuthAws(rest,authAws);
// URL: https://opsworks.us-west-2.amazonaws.com/
// Use the same region as specified above.
success := CkRest_Connect(rest,'opsworks.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,'InstanceIds[0]','string');
CkJsonObject_UpdateString(json,'LayerId','string');
CkJsonObject_UpdateString(json,'StackId','string');
// The JSON request body created by the above code:
// {
// "InstanceIds": [
// "string"
// ],
// "LayerId": "string",
// "StackId": "string"
// }
CkRest_AddHeader(rest,'Content-Type','application/x-amz-json-1.1');
CkRest_AddHeader(rest,'X-Amz-Target','OpsWorks_20130218.DescribeInstances');
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
i := 0;
count_i := CkJsonObject_SizeOfArray(jResp,'Instances');
while i < count_i do
begin
CkJsonObject_putI(jResp,i);
AgentVersion := CkJsonObject__stringOf(jResp,'Instances[i].AgentVersion');
AmiId := CkJsonObject__stringOf(jResp,'Instances[i].AmiId');
Architecture := CkJsonObject__stringOf(jResp,'Instances[i].Architecture');
Arn := CkJsonObject__stringOf(jResp,'Instances[i].Arn');
AutoScalingType := CkJsonObject__stringOf(jResp,'Instances[i].AutoScalingType');
AvailabilityZone := CkJsonObject__stringOf(jResp,'Instances[i].AvailabilityZone');
CreatedAt := CkJsonObject__stringOf(jResp,'Instances[i].CreatedAt');
EbsOptimized := CkJsonObject_IntOf(jResp,'Instances[i].EbsOptimized');
Ec2InstanceId := CkJsonObject__stringOf(jResp,'Instances[i].Ec2InstanceId');
EcsClusterArn := CkJsonObject__stringOf(jResp,'Instances[i].EcsClusterArn');
EcsContainerInstanceArn := CkJsonObject__stringOf(jResp,'Instances[i].EcsContainerInstanceArn');
ElasticIp := CkJsonObject__stringOf(jResp,'Instances[i].ElasticIp');
Hostname := CkJsonObject__stringOf(jResp,'Instances[i].Hostname');
InfrastructureClass := CkJsonObject__stringOf(jResp,'Instances[i].InfrastructureClass');
InstallUpdatesOnBoot := CkJsonObject_IntOf(jResp,'Instances[i].InstallUpdatesOnBoot');
InstanceId := CkJsonObject__stringOf(jResp,'Instances[i].InstanceId');
InstanceProfileArn := CkJsonObject__stringOf(jResp,'Instances[i].InstanceProfileArn');
InstanceType := CkJsonObject__stringOf(jResp,'Instances[i].InstanceType');
LastServiceErrorId := CkJsonObject__stringOf(jResp,'Instances[i].LastServiceErrorId');
Os := CkJsonObject__stringOf(jResp,'Instances[i].Os');
Platform := CkJsonObject__stringOf(jResp,'Instances[i].Platform');
PrivateDns := CkJsonObject__stringOf(jResp,'Instances[i].PrivateDns');
PrivateIp := CkJsonObject__stringOf(jResp,'Instances[i].PrivateIp');
PublicDns := CkJsonObject__stringOf(jResp,'Instances[i].PublicDns');
PublicIp := CkJsonObject__stringOf(jResp,'Instances[i].PublicIp');
RegisteredBy := CkJsonObject__stringOf(jResp,'Instances[i].RegisteredBy');
ReportedAgentVersion := CkJsonObject__stringOf(jResp,'Instances[i].ReportedAgentVersion');
Family := CkJsonObject__stringOf(jResp,'Instances[i].ReportedOs.Family');
Name := CkJsonObject__stringOf(jResp,'Instances[i].ReportedOs.Name');
Version := CkJsonObject__stringOf(jResp,'Instances[i].ReportedOs.Version');
RootDeviceType := CkJsonObject__stringOf(jResp,'Instances[i].RootDeviceType');
RootDeviceVolumeId := CkJsonObject__stringOf(jResp,'Instances[i].RootDeviceVolumeId');
SshHostDsaKeyFingerprint := CkJsonObject__stringOf(jResp,'Instances[i].SshHostDsaKeyFingerprint');
SshHostRsaKeyFingerprint := CkJsonObject__stringOf(jResp,'Instances[i].SshHostRsaKeyFingerprint');
SshKeyName := CkJsonObject__stringOf(jResp,'Instances[i].SshKeyName');
StackId := CkJsonObject__stringOf(jResp,'Instances[i].StackId');
Status := CkJsonObject__stringOf(jResp,'Instances[i].Status');
SubnetId := CkJsonObject__stringOf(jResp,'Instances[i].SubnetId');
Tenancy := CkJsonObject__stringOf(jResp,'Instances[i].Tenancy');
VirtualizationType := CkJsonObject__stringOf(jResp,'Instances[i].VirtualizationType');
j := 0;
count_j := CkJsonObject_SizeOfArray(jResp,'Instances[i].BlockDeviceMappings');
while j < count_j do
begin
CkJsonObject_putJ(jResp,j);
DeviceName := CkJsonObject__stringOf(jResp,'Instances[i].BlockDeviceMappings[j].DeviceName');
DeleteOnTermination := CkJsonObject_IntOf(jResp,'Instances[i].BlockDeviceMappings[j].Ebs.DeleteOnTermination');
Iops := CkJsonObject_IntOf(jResp,'Instances[i].BlockDeviceMappings[j].Ebs.Iops');
SnapshotId := CkJsonObject__stringOf(jResp,'Instances[i].BlockDeviceMappings[j].Ebs.SnapshotId');
VolumeSize := CkJsonObject_IntOf(jResp,'Instances[i].BlockDeviceMappings[j].Ebs.VolumeSize');
VolumeType := CkJsonObject__stringOf(jResp,'Instances[i].BlockDeviceMappings[j].Ebs.VolumeType');
NoDevice := CkJsonObject__stringOf(jResp,'Instances[i].BlockDeviceMappings[j].NoDevice');
VirtualName := CkJsonObject__stringOf(jResp,'Instances[i].BlockDeviceMappings[j].VirtualName');
j := j + 1;
end;
j := 0;
count_j := CkJsonObject_SizeOfArray(jResp,'Instances[i].LayerIds');
while j < count_j do
begin
CkJsonObject_putJ(jResp,j);
strVal := CkJsonObject__stringOf(jResp,'Instances[i].LayerIds[j]');
j := j + 1;
end;
j := 0;
count_j := CkJsonObject_SizeOfArray(jResp,'Instances[i].SecurityGroupIds');
while j < count_j do
begin
CkJsonObject_putJ(jResp,j);
strVal := CkJsonObject__stringOf(jResp,'Instances[i].SecurityGroupIds[j]');
j := j + 1;
end;
i := i + 1;
end;
// A sample JSON response body parsed by the above code:
// {
// "Instances": [
// {
// "AgentVersion": "string",
// "AmiId": "string",
// "Architecture": "string",
// "Arn": "string",
// "AutoScalingType": "string",
// "AvailabilityZone": "string",
// "BlockDeviceMappings": [
// {
// "DeviceName": "string",
// "Ebs": {
// "DeleteOnTermination": boolean,
// "Iops": number,
// "SnapshotId": "string",
// "VolumeSize": number,
// "VolumeType": "string"
// },
// "NoDevice": "string",
// "VirtualName": "string"
// }
// ],
// "CreatedAt": "string",
// "EbsOptimized": boolean,
// "Ec2InstanceId": "string",
// "EcsClusterArn": "string",
// "EcsContainerInstanceArn": "string",
// "ElasticIp": "string",
// "Hostname": "string",
// "InfrastructureClass": "string",
// "InstallUpdatesOnBoot": boolean,
// "InstanceId": "string",
// "InstanceProfileArn": "string",
// "InstanceType": "string",
// "LastServiceErrorId": "string",
// "LayerIds": [
// "string"
// ],
// "Os": "string",
// "Platform": "string",
// "PrivateDns": "string",
// "PrivateIp": "string",
// "PublicDns": "string",
// "PublicIp": "string",
// "RegisteredBy": "string",
// "ReportedAgentVersion": "string",
// "ReportedOs": {
// "Family": "string",
// "Name": "string",
// "Version": "string"
// },
// "RootDeviceType": "string",
// "RootDeviceVolumeId": "string",
// "SecurityGroupIds": [
// "string"
// ],
// "SshHostDsaKeyFingerprint": "string",
// "SshHostRsaKeyFingerprint": "string",
// "SshKeyName": "string",
// "StackId": "string",
// "Status": "string",
// "SubnetId": "string",
// "Tenancy": "string",
// "VirtualizationType": "string"
// }
// ]
// }
CkRest_Dispose(rest);
CkAuthAws_Dispose(authAws);
CkJsonObject_Dispose(json);
CkStringBuilder_Dispose(sbRequestBody);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);
