Chilkat Online Tools

CreateResolver delphiDll Example

AWS AppSync

var
rest: HCkRest;
success: Boolean;
authAws: HCkAuthAws;
json: HCkJsonObject;
sbRequestBody: HCkStringBuilder;
sbResponseBody: HCkStringBuilder;
respStatusCode: Integer;
jResp: HCkJsonObject;
strVal: PWideChar;
Ttl: Integer;
DataSourceName: PWideChar;
FieldName: PWideChar;
Kind: PWideChar;
MaxBatchSize: Integer;
RequestMappingTemplate: PWideChar;
ResolverArn: PWideChar;
ResponseMappingTemplate: PWideChar;
ConflictDetection: PWideChar;
ConflictHandler: PWideChar;
LambdaConflictHandlerArn: PWideChar;
TypeName: PWideChar;
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 := 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,'cachingConfig.cachingKeys[0]','string');
CkJsonObject_UpdateInt(json,'cachingConfig.ttl',123);
CkJsonObject_UpdateString(json,'dataSourceName','string');
CkJsonObject_UpdateString(json,'fieldName','string');
CkJsonObject_UpdateString(json,'kind','string');
CkJsonObject_UpdateInt(json,'maxBatchSize',123);
CkJsonObject_UpdateString(json,'pipelineConfig.functions[0]','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:

// {
//   "cachingConfig": {
//     "cachingKeys": [
//       "string"
//     ],
//     "ttl": number
//   },
//   "dataSourceName": "string",
//   "fieldName": "string",
//   "kind": "string",
//   "maxBatchSize": number,
//   "pipelineConfig": {
//     "functions": [
//       "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','CreateResolver');

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

Ttl := CkJsonObject_IntOf(jResp,'resolver.cachingConfig.ttl');
DataSourceName := CkJsonObject__stringOf(jResp,'resolver.dataSourceName');
FieldName := CkJsonObject__stringOf(jResp,'resolver.fieldName');
Kind := CkJsonObject__stringOf(jResp,'resolver.kind');
MaxBatchSize := CkJsonObject_IntOf(jResp,'resolver.maxBatchSize');
RequestMappingTemplate := CkJsonObject__stringOf(jResp,'resolver.requestMappingTemplate');
ResolverArn := CkJsonObject__stringOf(jResp,'resolver.resolverArn');
ResponseMappingTemplate := CkJsonObject__stringOf(jResp,'resolver.responseMappingTemplate');
ConflictDetection := CkJsonObject__stringOf(jResp,'resolver.syncConfig.conflictDetection');
ConflictHandler := CkJsonObject__stringOf(jResp,'resolver.syncConfig.conflictHandler');
LambdaConflictHandlerArn := CkJsonObject__stringOf(jResp,'resolver.syncConfig.lambdaConflictHandlerConfig.lambdaConflictHandlerArn');
TypeName := CkJsonObject__stringOf(jResp,'resolver.typeName');
i := 0;
count_i := CkJsonObject_SizeOfArray(jResp,'resolver.cachingConfig.cachingKeys');
while i < count_i do
  begin
    CkJsonObject_putI(jResp,i);
    strVal := CkJsonObject__stringOf(jResp,'resolver.cachingConfig.cachingKeys[i]');
    i := i + 1;
  end;

i := 0;
count_i := CkJsonObject_SizeOfArray(jResp,'resolver.pipelineConfig.functions');
while i < count_i do
  begin
    CkJsonObject_putI(jResp,i);
    strVal := CkJsonObject__stringOf(jResp,'resolver.pipelineConfig.functions[i]');
    i := i + 1;
  end;

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

// {
//   "resolver": {
//     "cachingConfig": {
//       "cachingKeys": [
//         "string"
//       ],
//       "ttl": number
//     },
//     "dataSourceName": "string",
//     "fieldName": "string",
//     "kind": "string",
//     "maxBatchSize": number,
//     "pipelineConfig": {
//       "functions": [
//         "string"
//       ]
//     },
//     "requestMappingTemplate": "string",
//     "resolverArn": "string",
//     "responseMappingTemplate": "string",
//     "syncConfig": {
//       "conflictDetection": "string",
//       "conflictHandler": "string",
//       "lambdaConflictHandlerConfig": {
//         "lambdaConflictHandlerArn": "string"
//       }
//     },
//     "typeName": "string"
//   }
// }

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