ListDatasets delphiAx Example
var
rest: TChilkatRest;
success: Integer;
authAws: TChilkatAuthAws;
sbResponseBody: TChilkatStringBuilder;
respStatusCode: Integer;
jResp: TChilkatJsonObject;
creationTime: Integer;
datasetName: WideString;
lastUpdateTime: Integer;
status: WideString;
j: Integer;
count_j: Integer;
actionName: WideString;
actionType: WideString;
Name: WideString;
Expression: WideString;
nextToken: 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 := '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;
rest.AddHeader('Content-Type','application/x-amz-json-1.1');
rest.AddHeader('X-Amz-Target','ListDatasets');
sbResponseBody := TChilkatStringBuilder.Create(Self);
success := rest.FullRequestNoBodySb('GET','/datasets',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
nextToken := jResp.StringOf('nextToken');
i := 0;
count_i := jResp.SizeOfArray('datasetSummaries');
while i < count_i do
begin
jResp.I := i;
creationTime := jResp.IntOf('datasetSummaries[i].creationTime');
datasetName := jResp.StringOf('datasetSummaries[i].datasetName');
lastUpdateTime := jResp.IntOf('datasetSummaries[i].lastUpdateTime');
status := jResp.StringOf('datasetSummaries[i].status');
j := 0;
count_j := jResp.SizeOfArray('datasetSummaries[i].actions');
while j < count_j do
begin
jResp.J := j;
actionName := jResp.StringOf('datasetSummaries[i].actions[j].actionName');
actionType := jResp.StringOf('datasetSummaries[i].actions[j].actionType');
j := j + 1;
end;
j := 0;
count_j := jResp.SizeOfArray('datasetSummaries[i].triggers');
while j < count_j do
begin
jResp.J := j;
Name := jResp.StringOf('datasetSummaries[i].triggers[j].dataset.name');
Expression := jResp.StringOf('datasetSummaries[i].triggers[j].schedule.expression');
j := j + 1;
end;
i := i + 1;
end;
// A sample JSON response body parsed by the above code:
// {
// "datasetSummaries": [
// {
// "actions": [
// {
// "actionName": "string",
// "actionType": "string"
// }
// ],
// "creationTime": number,
// "datasetName": "string",
// "lastUpdateTime": number,
// "status": "string",
// "triggers": [
// {
// "dataset": {
// "name": "string"
// },
// "schedule": {
// "expression": "string"
// }
// }
// ]
// }
// ],
// "nextToken": "string"
// }