package lambda;

import java.util.HashMap;

import java.util.Map;

import com.amazonaws.regions.Region;

import com.amazonaws.regions.Regions;

import com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient;

import com.amazonaws.services.dynamodbv2.model.AttributeValue;

import com.amazonaws.services.dynamodbv2.model.PutItemRequest;

import com.amazonaws.services.dynamodbv2.model.PutItemResult;

import com.amazonaws.services.lambda.runtime.Context;

import com.amazonaws.services.lambda.runtime.RequestHandler;

/**

*

* @author markusklems

*

*/

public class LambdaFormFunctionHandler implements

RequestHandler<Object, Object> {

private static AmazonDynamoDBClient dynamoDB;

/**

* Example object:

*

* {"employee_id":"1", "employee_name":"John Doh", "expense_type":"travel",

* "amount": "2565.75" }

*/

@Override

public Object handleRequest(Object input, Context context) {

dynamoDB = new AmazonDynamoDBClient().withRegion(Region

.getRegion(Regions.EU_WEST_1));

// TODO

// Parse the input object into a DynamoDB item, e.g., by using the newItem helper method

// Create a PutItemRequest and send the request at the DynamoDB table with name 'lambda-reimbursment'

return "{'status':'done'}";

}

/**

* Helper method.

*

* @param employee_id

* @param employee_name

* @param expense_type

* @param amount

* @return DynamoDB item

*/

private static Map<String, AttributeValue> newItem(String employee_id,

String employee_name, String expense_type, String amount) {

Map<String, AttributeValue> item = new HashMap<String, AttributeValue>();

item.put("employee_id", new AttributeValue((String) employee_id));

item.put("employee_name", new AttributeValue((String) employee_name));

item.put("expense_type", new AttributeValue((String) expense_type));

item.put("amount", new AttributeValue().withN(amount));

return item;

}

}