ListStatements delphiAx Example
var
rest: TChilkatRest;
success: Integer;
authAws: TChilkatAuthAws;
json: TChilkatJsonObject;
sbRequestBody: TChilkatStringBuilder;
sbResponseBody: TChilkatStringBuilder;
respStatusCode: Integer;
jResp: TChilkatJsonObject;
CreatedAt: Integer;
Id: WideString;
IsBatchStatement: Integer;
QueryString: WideString;
SecretArn: WideString;
StatementName: WideString;
Status: WideString;
UpdatedAt: Integer;
j: Integer;
count_j: Integer;
name: WideString;
value: WideString;
strVal: 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 := 'redshift-data';
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
rest.SetAuthAws(authAws.ControlInterface);
// URL: https://redshift-data.us-west-2.amazonaws.com/
// Use the same region as specified above.
success := rest.Connect('redshift-data.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.UpdateInt('MaxResults',123);
json.UpdateString('NextToken','string');
json.UpdateInt('RoleLevel',123);
json.UpdateString('StatementName','string');
json.UpdateString('Status','string');
// The JSON request body created by the above code:
// {
// "MaxResults": number,
// "NextToken": "string",
// "RoleLevel": boolean,
// "StatementName": "string",
// "Status": "string"
// }
rest.AddHeader('Content-Type','application/x-amz-json-1.1');
rest.AddHeader('X-Amz-Target','RedshiftData.ListStatements');
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
NextToken := jResp.StringOf('NextToken');
i := 0;
count_i := jResp.SizeOfArray('Statements');
while i < count_i do
begin
jResp.I := i;
CreatedAt := jResp.IntOf('Statements[i].CreatedAt');
Id := jResp.StringOf('Statements[i].Id');
IsBatchStatement := jResp.IntOf('Statements[i].IsBatchStatement');
QueryString := jResp.StringOf('Statements[i].QueryString');
SecretArn := jResp.StringOf('Statements[i].SecretArn');
StatementName := jResp.StringOf('Statements[i].StatementName');
Status := jResp.StringOf('Statements[i].Status');
UpdatedAt := jResp.IntOf('Statements[i].UpdatedAt');
j := 0;
count_j := jResp.SizeOfArray('Statements[i].QueryParameters');
while j < count_j do
begin
jResp.J := j;
name := jResp.StringOf('Statements[i].QueryParameters[j].name');
value := jResp.StringOf('Statements[i].QueryParameters[j].value');
j := j + 1;
end;
j := 0;
count_j := jResp.SizeOfArray('Statements[i].QueryStrings');
while j < count_j do
begin
jResp.J := j;
strVal := jResp.StringOf('Statements[i].QueryStrings[j]');
j := j + 1;
end;
i := i + 1;
end;
// A sample JSON response body parsed by the above code:
// {
// "NextToken": "string",
// "Statements": [
// {
// "CreatedAt": number,
// "Id": "string",
// "IsBatchStatement": boolean,
// "QueryParameters": [
// {
// "name": "string",
// "value": "string"
// }
// ],
// "QueryString": "string",
// "QueryStrings": [
// "string"
// ],
// "SecretArn": "string",
// "StatementName": "string",
// "Status": "string",
// "UpdatedAt": number
// }
// ]
// }