Chilkat Online Tools

GetContent delphiAx Example

Amazon Wisdom

var
rest: TChilkatRest;
success: Integer;
authAws: TChilkatAuthAws;
sbResponseBody: TChilkatStringBuilder;
respStatusCode: Integer;
jResp: TChilkatJsonObject;
ContentArn: WideString;
ContentId: WideString;
ContentType: WideString;
KnowledgeBaseArn: WideString;
KnowledgeBaseId: WideString;
LinkOutUri: WideString;
v_String: WideString;
Name: WideString;
RevisionId: WideString;
Status: WideString;
TagsString: WideString;
Title: WideString;
v_Url: WideString;
UrlExpiry: 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 := 'wisdom';
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
rest.SetAuthAws(authAws.ControlInterface);

// URL: https://wisdom.us-west-2.amazonaws.com/
// Use the same region as specified above.
success := rest.Connect('wisdom.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','GetContent');

sbResponseBody := TChilkatStringBuilder.Create(Self);
success := rest.FullRequestNoBodySb('GET','/knowledgeBases/{knowledgeBaseId}/contents/{contentId}',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

ContentArn := jResp.StringOf('content.contentArn');
ContentId := jResp.StringOf('content.contentId');
ContentType := jResp.StringOf('content.contentType');
KnowledgeBaseArn := jResp.StringOf('content.knowledgeBaseArn');
KnowledgeBaseId := jResp.StringOf('content.knowledgeBaseId');
LinkOutUri := jResp.StringOf('content.linkOutUri');
v_String := jResp.StringOf('content.metadata.string');
Name := jResp.StringOf('content.name');
RevisionId := jResp.StringOf('content.revisionId');
Status := jResp.StringOf('content.status');
TagsString := jResp.StringOf('content.tags.string');
Title := jResp.StringOf('content.title');
v_Url := jResp.StringOf('content.url');
UrlExpiry := jResp.IntOf('content.urlExpiry');

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

// {
//   "content": {
//     "contentArn": "string",
//     "contentId": "string",
//     "contentType": "string",
//     "knowledgeBaseArn": "string",
//     "knowledgeBaseId": "string",
//     "linkOutUri": "string",
//     "metadata": {
//       "string": "string"
//     },
//     "name": "string",
//     "revisionId": "string",
//     "status": "string",
//     "tags": {
//       "string": "string"
//     },
//     "title": "string",
//     "url": "string",
//     "urlExpiry": number
//   }
// }