Chilkat Online Tools

UpdateResolver delphiAx Example

AWS AppSync

var
rest: TChilkatRest;
success: Integer;
authAws: TChilkatAuthAws;
json: TChilkatJsonObject;
sbRequestBody: TChilkatStringBuilder;
sbResponseBody: TChilkatStringBuilder;
respStatusCode: Integer;
jResp: TChilkatJsonObject;
strVal: WideString;
Ttl: Integer;
DataSourceName: WideString;
FieldName: WideString;
Kind: WideString;
MaxBatchSize: Integer;
RequestMappingTemplate: WideString;
ResolverArn: WideString;
ResponseMappingTemplate: WideString;
ConflictDetection: WideString;
ConflictHandler: WideString;
LambdaConflictHandlerArn: WideString;
TypeName: 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 := 'appsync';
// SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
rest.SetAuthAws(authAws.ControlInterface);

// URL: https://appsync.us-west-2.amazonaws.com/
// Use the same region as specified above.
success := rest.Connect('appsync.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.UpdateString('cachingConfig.cachingKeys[0]','string');
json.UpdateInt('cachingConfig.ttl',123);
json.UpdateString('dataSourceName','string');
json.UpdateString('kind','string');
json.UpdateInt('maxBatchSize',123);
json.UpdateString('pipelineConfig.functions[0]','string');
json.UpdateString('requestMappingTemplate','string');
json.UpdateString('responseMappingTemplate','string');
json.UpdateString('syncConfig.conflictDetection','string');
json.UpdateString('syncConfig.conflictHandler','string');
json.UpdateString('syncConfig.lambdaConflictHandlerConfig.lambdaConflictHandlerArn','string');

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

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

rest.AddHeader('Content-Type','application/x-amz-json-1.1');
rest.AddHeader('X-Amz-Target','UpdateResolver');

sbRequestBody := TChilkatStringBuilder.Create(Self);
json.EmitSb(sbRequestBody.ControlInterface);
sbResponseBody := TChilkatStringBuilder.Create(Self);
success := rest.FullRequestSb('POST','/v1/apis/{apiId}/types/{typeName}/resolvers/{fieldName}',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

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

i := 0;
count_i := jResp.SizeOfArray('resolver.pipelineConfig.functions');
while i < count_i do
  begin
    jResp.I := i;
    strVal := jResp.StringOf('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"
//   }
// }