Chilkat Online Tools

UpdateFunction Java Example

AWS AppSync

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkRest rest = new CkRest();
    boolean success;

    CkAuthAws authAws = new CkAuthAws();
    authAws.put_AccessKey("AWS_ACCESS_KEY");
    authAws.put_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.put_Region("us-west-2");
    authAws.put_ServiceName("appsync");
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    rest.SetAuthAws(authAws);

    // 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,true,true);
    if (success != true) {
        System.out.println("ConnectFailReason: " + rest.get_ConnectFailReason());
        System.out.println(rest.lastErrorText());
        return;
        }

    // 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

    CkJsonObject json = new CkJsonObject();
    json.UpdateString("dataSourceName","string");
    json.UpdateString("description","string");
    json.UpdateString("functionVersion","string");
    json.UpdateInt("maxBatchSize",123);
    json.UpdateString("name","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:

    // {
    //   "dataSourceName": "string",
    //   "description": "string",
    //   "functionVersion": "string",
    //   "maxBatchSize": number,
    //   "name": "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","UpdateFunction");

    CkStringBuilder sbRequestBody = new CkStringBuilder();
    json.EmitSb(sbRequestBody);
    CkStringBuilder sbResponseBody = new CkStringBuilder();
    success = rest.FullRequestSb("POST","/v1/apis/{apiId}/functions/{functionId}",sbRequestBody,sbResponseBody);
    if (success != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    int respStatusCode = rest.get_ResponseStatusCode();
    System.out.println("response status code = " + respStatusCode);
    if (respStatusCode != 200) {
        System.out.println("Response Header:");
        System.out.println(rest.responseHeader());
        System.out.println("Response Body:");
        System.out.println(sbResponseBody.getAsString());
        return;
        }

    CkJsonObject jResp = new CkJsonObject();
    jResp.LoadSb(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

    String DataSourceName = jResp.stringOf("functionConfiguration.dataSourceName");
    String Description = jResp.stringOf("functionConfiguration.description");
    String FunctionArn = jResp.stringOf("functionConfiguration.functionArn");
    String FunctionId = jResp.stringOf("functionConfiguration.functionId");
    String FunctionVersion = jResp.stringOf("functionConfiguration.functionVersion");
    int MaxBatchSize = jResp.IntOf("functionConfiguration.maxBatchSize");
    String Name = jResp.stringOf("functionConfiguration.name");
    String RequestMappingTemplate = jResp.stringOf("functionConfiguration.requestMappingTemplate");
    String ResponseMappingTemplate = jResp.stringOf("functionConfiguration.responseMappingTemplate");
    String ConflictDetection = jResp.stringOf("functionConfiguration.syncConfig.conflictDetection");
    String ConflictHandler = jResp.stringOf("functionConfiguration.syncConfig.conflictHandler");
    String LambdaConflictHandlerArn = jResp.stringOf("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"
    //       }
    //     }
    //   }
    // }
  }
}