Chilkat Online Tools

CreateDocumentClassifier delphiDll Example

Amazon Comprehend

var
rest: HCkRest;
success: Boolean;
authAws: HCkAuthAws;
json: HCkJsonObject;
sbRequestBody: HCkStringBuilder;
sbResponseBody: HCkStringBuilder;
respStatusCode: Integer;
jResp: HCkJsonObject;
DocumentClassifierArn: PWideChar;

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,'comprehend');
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
CkRest_SetAuthAws(rest,authAws);

// URL: https://comprehend.us-west-2.amazonaws.com/
// Use the same region as specified above.
success := CkRest_Connect(rest,'comprehend.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,'ClientRequestToken','string');
CkJsonObject_UpdateString(json,'DataAccessRoleArn','string');
CkJsonObject_UpdateString(json,'DocumentClassifierName','string');
CkJsonObject_UpdateString(json,'InputDataConfig.AugmentedManifests[0].AnnotationDataS3Uri','string');
CkJsonObject_UpdateString(json,'InputDataConfig.AugmentedManifests[0].AttributeNames[0]','string');
CkJsonObject_UpdateString(json,'InputDataConfig.AugmentedManifests[0].DocumentType','string');
CkJsonObject_UpdateString(json,'InputDataConfig.AugmentedManifests[0].S3Uri','string');
CkJsonObject_UpdateString(json,'InputDataConfig.AugmentedManifests[0].SourceDocumentsS3Uri','string');
CkJsonObject_UpdateString(json,'InputDataConfig.AugmentedManifests[0].Split','string');
CkJsonObject_UpdateString(json,'InputDataConfig.DataFormat','string');
CkJsonObject_UpdateString(json,'InputDataConfig.LabelDelimiter','string');
CkJsonObject_UpdateString(json,'InputDataConfig.S3Uri','string');
CkJsonObject_UpdateString(json,'InputDataConfig.TestS3Uri','string');
CkJsonObject_UpdateString(json,'LanguageCode','string');
CkJsonObject_UpdateString(json,'Mode','string');
CkJsonObject_UpdateString(json,'ModelKmsKeyId','string');
CkJsonObject_UpdateString(json,'ModelPolicy','string');
CkJsonObject_UpdateString(json,'OutputDataConfig.KmsKeyId','string');
CkJsonObject_UpdateString(json,'OutputDataConfig.S3Uri','string');
CkJsonObject_UpdateString(json,'Tags[0].Key','string');
CkJsonObject_UpdateString(json,'Tags[0].Value','string');
CkJsonObject_UpdateString(json,'VersionName','string');
CkJsonObject_UpdateString(json,'VolumeKmsKeyId','string');
CkJsonObject_UpdateString(json,'VpcConfig.SecurityGroupIds[0]','string');
CkJsonObject_UpdateString(json,'VpcConfig.Subnets[0]','string');

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

// {
//   "ClientRequestToken": "string",
//   "DataAccessRoleArn": "string",
//   "DocumentClassifierName": "string",
//   "InputDataConfig": {
//     "AugmentedManifests": [
//       {
//         "AnnotationDataS3Uri": "string",
//         "AttributeNames": [
//           "string"
//         ],
//         "DocumentType": "string",
//         "S3Uri": "string",
//         "SourceDocumentsS3Uri": "string",
//         "Split": "string"
//       }
//     ],
//     "DataFormat": "string",
//     "LabelDelimiter": "string",
//     "S3Uri": "string",
//     "TestS3Uri": "string"
//   },
//   "LanguageCode": "string",
//   "Mode": "string",
//   "ModelKmsKeyId": "string",
//   "ModelPolicy": "string",
//   "OutputDataConfig": {
//     "KmsKeyId": "string",
//     "S3Uri": "string"
//   },
//   "Tags": [
//     {
//       "Key": "string",
//       "Value": "string"
//     }
//   ],
//   "VersionName": "string",
//   "VolumeKmsKeyId": "string",
//   "VpcConfig": {
//     "SecurityGroupIds": [
//       "string"
//     ],
//     "Subnets": [
//       "string"
//     ]
//   }
// }

CkRest_AddHeader(rest,'Content-Type','application/x-amz-json-1.1');
CkRest_AddHeader(rest,'X-Amz-Target','Comprehend_20171127.CreateDocumentClassifier');

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

DocumentClassifierArn := CkJsonObject__stringOf(jResp,'DocumentClassifierArn');

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

// {
//   "DocumentClassifierArn": "string"
// }

CkRest_Dispose(rest);
CkAuthAws_Dispose(authAws);
CkJsonObject_Dispose(json);
CkStringBuilder_Dispose(sbRequestBody);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);