Chilkat Online Tools

UpdateFunction delphiDll Example

AWS AppSync

var
rest: HCkRest;
success: Boolean;
authAws: HCkAuthAws;
json: HCkJsonObject;
sbRequestBody: HCkStringBuilder;
sbResponseBody: HCkStringBuilder;
respStatusCode: Integer;
jResp: HCkJsonObject;
DataSourceName: PWideChar;
Description: PWideChar;
FunctionArn: PWideChar;
FunctionId: PWideChar;
FunctionVersion: PWideChar;
MaxBatchSize: Integer;
Name: PWideChar;
RequestMappingTemplate: PWideChar;
ResponseMappingTemplate: PWideChar;
ConflictDetection: PWideChar;
ConflictHandler: PWideChar;
LambdaConflictHandlerArn: 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,'appsync');
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
CkRest_SetAuthAws(rest,authAws);

// URL: https://appsync.us-west-2.amazonaws.com/
// Use the same region as specified above.
success := CkRest_Connect(rest,'appsync.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,'dataSourceName','string');
CkJsonObject_UpdateString(json,'description','string');
CkJsonObject_UpdateString(json,'functionVersion','string');
CkJsonObject_UpdateInt(json,'maxBatchSize',123);
CkJsonObject_UpdateString(json,'name','string');
CkJsonObject_UpdateString(json,'requestMappingTemplate','string');
CkJsonObject_UpdateString(json,'responseMappingTemplate','string');
CkJsonObject_UpdateString(json,'syncConfig.conflictDetection','string');
CkJsonObject_UpdateString(json,'syncConfig.conflictHandler','string');
CkJsonObject_UpdateString(json,'syncConfig.lambdaConflictHandlerConfig.lambdaConflictHandlerArn','string');

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

// {
//   "dataSourceName": "string",
//   "description": "string",
//   "functionVersion": "string",
//   "maxBatchSize": number,
//   "name": "string",
//   "requestMappingTemplate": "string",
//   "responseMappingTemplate": "string",
//   "syncConfig": {
//     "conflictDetection": "string",
//     "conflictHandler": "string",
//     "lambdaConflictHandlerConfig": {
//       "lambdaConflictHandlerArn": "string"
//     }
//   }
// }

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

sbRequestBody := CkStringBuilder_Create();
CkJsonObject_EmitSb(json,sbRequestBody);
sbResponseBody := CkStringBuilder_Create();
success := CkRest_FullRequestSb(rest,'POST','/v1/apis/{apiId}/functions/{functionId}',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

DataSourceName := CkJsonObject__stringOf(jResp,'functionConfiguration.dataSourceName');
Description := CkJsonObject__stringOf(jResp,'functionConfiguration.description');
FunctionArn := CkJsonObject__stringOf(jResp,'functionConfiguration.functionArn');
FunctionId := CkJsonObject__stringOf(jResp,'functionConfiguration.functionId');
FunctionVersion := CkJsonObject__stringOf(jResp,'functionConfiguration.functionVersion');
MaxBatchSize := CkJsonObject_IntOf(jResp,'functionConfiguration.maxBatchSize');
Name := CkJsonObject__stringOf(jResp,'functionConfiguration.name');
RequestMappingTemplate := CkJsonObject__stringOf(jResp,'functionConfiguration.requestMappingTemplate');
ResponseMappingTemplate := CkJsonObject__stringOf(jResp,'functionConfiguration.responseMappingTemplate');
ConflictDetection := CkJsonObject__stringOf(jResp,'functionConfiguration.syncConfig.conflictDetection');
ConflictHandler := CkJsonObject__stringOf(jResp,'functionConfiguration.syncConfig.conflictHandler');
LambdaConflictHandlerArn := CkJsonObject__stringOf(jResp,'functionConfiguration.syncConfig.lambdaConflictHandlerConfig.lambdaConflictHandlerArn');

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

// {
//   "functionConfiguration": {
//     "dataSourceName": "string",
//     "description": "string",
//     "functionArn": "string",
//     "functionId": "string",
//     "functionVersion": "string",
//     "maxBatchSize": number,
//     "name": "string",
//     "requestMappingTemplate": "string",
//     "responseMappingTemplate": "string",
//     "syncConfig": {
//       "conflictDetection": "string",
//       "conflictHandler": "string",
//       "lambdaConflictHandlerConfig": {
//         "lambdaConflictHandlerArn": "string"
//       }
//     }
//   }
// }

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