Chilkat Online Tools

CreateChannel delphiAx Example

AWS IoT Analytics

var
rest: TChilkatRest;
success: Integer;
authAws: TChilkatAuthAws;
json: TChilkatJsonObject;
sbRequestBody: TChilkatStringBuilder;
sbResponseBody: TChilkatStringBuilder;
respStatusCode: Integer;
jResp: TChilkatJsonObject;
channelArn: WideString;
channelName: WideString;
NumberOfDays: Integer;
Unlimited: 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 := 'iotanalytics';
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
rest.SetAuthAws(authAws.ControlInterface);

// URL: https://iotanalytics.us-west-2.amazonaws.com/
// Use the same region as specified above.
success := rest.Connect('iotanalytics.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('channelName','string');
json.UpdateString('channelStorage.customerManagedS3.bucket','string');
json.UpdateString('channelStorage.customerManagedS3.keyPrefix','string');
json.UpdateString('channelStorage.customerManagedS3.roleArn','string');
json.UpdateNewObject('channelStorage.serviceManagedS3');
json.UpdateInt('retentionPeriod.numberOfDays',123);
json.UpdateInt('retentionPeriod.unlimited',123);
json.UpdateString('tags[0].key','string');
json.UpdateString('tags[0].value','string');

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

// {
//   "channelName": "string",
//   "channelStorage": {
//     "customerManagedS3": {
//       "bucket": "string",
//       "keyPrefix": "string",
//       "roleArn": "string"
//     },
//     "serviceManagedS3": {}
//   },
//   "retentionPeriod": {
//     "numberOfDays": number,
//     "unlimited": boolean
//   },
//   "tags": [
//     {
//       "key": "string",
//       "value": "string"
//     }
//   ]
// }

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

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

channelArn := jResp.StringOf('channelArn');
channelName := jResp.StringOf('channelName');
NumberOfDays := jResp.IntOf('retentionPeriod.numberOfDays');
Unlimited := jResp.IntOf('retentionPeriod.unlimited');

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

// {
//   "channelArn": "string",
//   "channelName": "string",
//   "retentionPeriod": {
//     "numberOfDays": number,
//     "unlimited": boolean
//   }
// }