Chilkat Online Tools

ListFunctions 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;
        }

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

    CkStringBuilder sbResponseBody = new CkStringBuilder();
    success = rest.FullRequestNoBodySb("GET","/v1/apis/{apiId}/functions",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;
    String description;
    String functionArn;
    String functionId;
    String functionVersion;
    int maxBatchSize;
    String name;
    String requestMappingTemplate;
    String responseMappingTemplate;
    String ConflictDetection;
    String ConflictHandler;
    String LambdaConflictHandlerArn;

    String nextToken = jResp.stringOf("nextToken");
    int i = 0;
    int count_i = jResp.SizeOfArray("functions");
    while (i < count_i) {
        jResp.put_I(i);
        dataSourceName = jResp.stringOf("functions[i].dataSourceName");
        description = jResp.stringOf("functions[i].description");
        functionArn = jResp.stringOf("functions[i].functionArn");
        functionId = jResp.stringOf("functions[i].functionId");
        functionVersion = jResp.stringOf("functions[i].functionVersion");
        maxBatchSize = jResp.IntOf("functions[i].maxBatchSize");
        name = jResp.stringOf("functions[i].name");
        requestMappingTemplate = jResp.stringOf("functions[i].requestMappingTemplate");
        responseMappingTemplate = jResp.stringOf("functions[i].responseMappingTemplate");
        ConflictDetection = jResp.stringOf("functions[i].syncConfig.conflictDetection");
        ConflictHandler = jResp.stringOf("functions[i].syncConfig.conflictHandler");
        LambdaConflictHandlerArn = jResp.stringOf("functions[i].syncConfig.lambdaConflictHandlerConfig.lambdaConflictHandlerArn");
        i = i+1;
        }

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

    // {
    //   "functions": [
    //     {
    //       "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"
    //         }
    //       }
    //     }
    //   ],
    //   "nextToken": "string"
    // }
  }
}