mindol1004/spring-boot-rest
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

BAEL-1727 (#4575)

Browse Source 
* Moved Lambda examples to separate module
Implementation of API Gateway example

* Format fixes

* Format fixes

* Minor fixes

* Minor fixes

* Minor fixes

* Adding SAM templates for "Introduction to AWS Serverless Application Model"

* Fixing formatting with spaces
This commit is contained in:
markusgulden
2018-06-30 05:49:16 +02:00
committed by KevinGilmore
parent 4e785fdc15
commit f6f62ea0f5
4 changed files with 356 additions and 154 deletions
Download Patch File Download Diff File Expand all files Collapse all files

214
aws-lambda/src/main/java/com/baeldung/lambda/apigateway/APIDemoHandler.java
View File

@@ -15,152 +15,152 @@ import java.io.*;
public class APIDemoHandler implements RequestStreamHandler {
private JSONParser parser = new JSONParser();
private static final String DYNAMODB_TABLE_NAME = System.getenv("TABLE_NAME");
private JSONParser parser = new JSONParser();
private static final String DYNAMODB_TABLE_NAME = System.getenv("TABLE_NAME");
@Override
public void handleRequest(InputStream inputStream, OutputStream outputStream, Context context) throws IOException {
@Override
public void handleRequest(InputStream inputStream, OutputStream outputStream, Context context) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
JSONObject responseJson = new JSONObject();
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
JSONObject responseJson = new JSONObject();
AmazonDynamoDB client = AmazonDynamoDBClientBuilder.defaultClient();
DynamoDB dynamoDb = new DynamoDB(client);
AmazonDynamoDB client = AmazonDynamoDBClientBuilder.defaultClient();
DynamoDB dynamoDb = new DynamoDB(client);
try {
JSONObject event = (JSONObject) parser.parse(reader);
try {
JSONObject event = (JSONObject) parser.parse(reader);
if (event.get("body") != null) {
if (event.get("body") != null) {
Person person = new Person((String) event.get("body"));
Person person = new Person((String) event.get("body"));
dynamoDb.getTable(DYNAMODB_TABLE_NAME)
.putItem(new PutItemSpec().withItem(new Item().withNumber("id", person.getId())
.withString("firstName", person.getFirstName())
.withString("lastName", person.getLastName()).withNumber("age", person.getAge())
.withString("address", person.getAddress())));
}
dynamoDb.getTable(DYNAMODB_TABLE_NAME)
.putItem(new PutItemSpec().withItem(new Item().withNumber("id", person.getId())
.withString("firstName", person.getFirstName())
.withString("lastName", person.getLastName()).withNumber("age", person.getAge())
.withString("address", person.getAddress())));
}
JSONObject responseBody = new JSONObject();
responseBody.put("message", "New item created");
JSONObject responseBody = new JSONObject();
responseBody.put("message", "New item created");
JSONObject headerJson = new JSONObject();
headerJson.put("x-custom-header", "my custom header value");
JSONObject headerJson = new JSONObject();
headerJson.put("x-custom-header", "my custom header value");
responseJson.put("statusCode", 200);
responseJson.put("headers", headerJson);
responseJson.put("body", responseBody.toString());
responseJson.put("statusCode", 200);
responseJson.put("headers", headerJson);
responseJson.put("body", responseBody.toString());
} catch (ParseException pex) {
responseJson.put("statusCode", 400);
responseJson.put("exception", pex);
}
} catch (ParseException pex) {
responseJson.put("statusCode", 400);
responseJson.put("exception", pex);
}
OutputStreamWriter writer = new OutputStreamWriter(outputStream, "UTF-8");
writer.write(responseJson.toString());
writer.close();
}
OutputStreamWriter writer = new OutputStreamWriter(outputStream, "UTF-8");
writer.write(responseJson.toString());
writer.close();
}
public void handleGetByPathParam(InputStream inputStream, OutputStream outputStream, Context context)
throws IOException {
public void handleGetByPathParam(InputStream inputStream, OutputStream outputStream, Context context)
throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
JSONObject responseJson = new JSONObject();
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
JSONObject responseJson = new JSONObject();
AmazonDynamoDB client = AmazonDynamoDBClientBuilder.defaultClient();
DynamoDB dynamoDb = new DynamoDB(client);
AmazonDynamoDB client = AmazonDynamoDBClientBuilder.defaultClient();
DynamoDB dynamoDb = new DynamoDB(client);
Item result = null;
try {
JSONObject event = (JSONObject) parser.parse(reader);
JSONObject responseBody = new JSONObject();
Item result = null;
try {
JSONObject event = (JSONObject) parser.parse(reader);
JSONObject responseBody = new JSONObject();
if (event.get("pathParameters") != null) {
if (event.get("pathParameters") != null) {
JSONObject pps = (JSONObject) event.get("pathParameters");
if (pps.get("id") != null) {
JSONObject pps = (JSONObject) event.get("pathParameters");
if (pps.get("id") != null) {
int id = Integer.parseInt((String) pps.get("id"));
result = dynamoDb.getTable(DYNAMODB_TABLE_NAME).getItem("id", id);
}
int id = Integer.parseInt((String) pps.get("id"));
result = dynamoDb.getTable(DYNAMODB_TABLE_NAME).getItem("id", id);
}
}
if (result != null) {
}
if (result != null) {
Person person = new Person(result.toJSON());
responseBody.put("Person", person);
responseJson.put("statusCode", 200);
} else {
Person person = new Person(result.toJSON());
responseBody.put("Person", person);
responseJson.put("statusCode", 200);
} else {
responseBody.put("message", "No item found");
responseJson.put("statusCode", 404);
}
responseBody.put("message", "No item found");
responseJson.put("statusCode", 404);
}
JSONObject headerJson = new JSONObject();
headerJson.put("x-custom-header", "my custom header value");
JSONObject headerJson = new JSONObject();
headerJson.put("x-custom-header", "my custom header value");
responseJson.put("headers", headerJson);
responseJson.put("body", responseBody.toString());
responseJson.put("headers", headerJson);
responseJson.put("body", responseBody.toString());
} catch (ParseException pex) {
responseJson.put("statusCode", 400);
responseJson.put("exception", pex);
}
} catch (ParseException pex) {
responseJson.put("statusCode", 400);
responseJson.put("exception", pex);
}
OutputStreamWriter writer = new OutputStreamWriter(outputStream, "UTF-8");
writer.write(responseJson.toString());
writer.close();
}
OutputStreamWriter writer = new OutputStreamWriter(outputStream, "UTF-8");
writer.write(responseJson.toString());
writer.close();
}
public void handleGetByQueryParam(InputStream inputStream, OutputStream outputStream, Context context)
throws IOException {
public void handleGetByQueryParam(InputStream inputStream, OutputStream outputStream, Context context)
throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
JSONObject responseJson = new JSONObject();
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
JSONObject responseJson = new JSONObject();
AmazonDynamoDB client = AmazonDynamoDBClientBuilder.defaultClient();
DynamoDB dynamoDb = new DynamoDB(client);
AmazonDynamoDB client = AmazonDynamoDBClientBuilder.defaultClient();
DynamoDB dynamoDb = new DynamoDB(client);
Item result = null;
try {
JSONObject event = (JSONObject) parser.parse(reader);
JSONObject responseBody = new JSONObject();
Item result = null;
try {
JSONObject event = (JSONObject) parser.parse(reader);
JSONObject responseBody = new JSONObject();
if (event.get("queryStringParameters") != null) {
if (event.get("queryStringParameters") != null) {
JSONObject qps = (JSONObject) event.get("queryStringParameters");
if (qps.get("id") != null) {
JSONObject qps = (JSONObject) event.get("queryStringParameters");
if (qps.get("id") != null) {
int id = Integer.parseInt((String) qps.get("id"));
result = dynamoDb.getTable(DYNAMODB_TABLE_NAME).getItem("id", id);
}
}
int id = Integer.parseInt((String) qps.get("id"));
result = dynamoDb.getTable(DYNAMODB_TABLE_NAME).getItem("id", id);
}
}
if (result != null) {
if (result != null) {
Person person = new Person(result.toJSON());
responseBody.put("Person", person);
responseJson.put("statusCode", 200);
} else {
Person person = new Person(result.toJSON());
responseBody.put("Person", person);
responseJson.put("statusCode", 200);
} else {
responseBody.put("message", "No item found");
responseJson.put("statusCode", 404);
}
responseBody.put("message", "No item found");
responseJson.put("statusCode", 404);
}
JSONObject headerJson = new JSONObject();
headerJson.put("x-custom-header", "my custom header value");
JSONObject headerJson = new JSONObject();
headerJson.put("x-custom-header", "my custom header value");
responseJson.put("headers", headerJson);
responseJson.put("body", responseBody.toString());
responseJson.put("headers", headerJson);
responseJson.put("body", responseBody.toString());
} catch (ParseException pex) {
responseJson.put("statusCode", 400);
responseJson.put("exception", pex);
}
} catch (ParseException pex) {
responseJson.put("statusCode", 400);
responseJson.put("exception", pex);
}
OutputStreamWriter writer = new OutputStreamWriter(outputStream, "UTF-8");
writer.write(responseJson.toString());
writer.close();
}
OutputStreamWriter writer = new OutputStreamWriter(outputStream, "UTF-8");
writer.write(responseJson.toString());
writer.close();
}
}