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https://github.com/noboomu/proteus
Proteus is a blazing fast minimalist Java web server framework built atop Undertow.
https://github.com/noboomu/proteus
api api-server high-performance http2 java jax-rs microservice microservice-framework mvc openapi reactive rest rest-api restful-api swagger undertow web-framework
Last synced: 3 months ago
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Proteus is a blazing fast minimalist Java web server framework built atop Undertow.
- Host: GitHub
- URL: https://github.com/noboomu/proteus
- Owner: noboomu
- License: apache-2.0
- Created: 2017-04-25T14:55:16.000Z (about 7 years ago)
- Default Branch: master
- Last Pushed: 2023-12-19T23:45:13.000Z (6 months ago)
- Last Synced: 2024-01-17T19:55:27.336Z (5 months ago)
- Topics: api, api-server, high-performance, http2, java, jax-rs, microservice, microservice-framework, mvc, openapi, reactive, rest, rest-api, restful-api, swagger, undertow, web-framework
- Language: Java
- Homepage:
- Size: 26 MB
- Stars: 185
- Watchers: 12
- Forks: 18
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Lists
- awesome-list-microservice - proteus - Performance Java web and microservice framework. (web-framework)
README
Proteus is a __blazing fast minimalist__ Java API server framework built atop [Undertow](http://undertow.io) for developing back end applications and microservices.
- __NO MAGIC__
- Incredibly easy to use and get started
- Limited dependencies and < 340kb
- JAX-RS compliant
- Easy on the developer and the metal
- Blazing fast!!!
[The latest Techempower benchmarks](https://www.techempower.com/benchmarks/) demonstrate __proteus__ outperforming the top Java web frameworks
TL;DR
---------------
- Proteus rewrites your controller methods into high performance Undertow response handlers at run time.
- The goal is to provide the absolute highest performance while providing a simple and familiar API.
- As developers, we feel a web framework should provide the essentials at minimal cost.
Getting Started
---------------
### Quick Start
- Make sure you have a JDK >= 8 and a current version of Maven installed.
- Copy and paste into your terminal:
```
/bin/bash -e <(curl -fsSL https://raw.githubusercontent.com/noboomu/proteus-example/master/scripts/quickStart.sh)
```
- Open [http://localhost:8090/v1/openapi](http://localhost:8090/v1/openapi) for a v3 OpenAPI UI.
### As a dependency
```xml
io.sinistral
proteus-core
0.6.0
```
OpenAPI v3 Support
```xml
io.sinistral
proteus-openapi
0.6.0
```
Controllers
---------------
### Supported Controller Annotations
Controller classes respect standard JAX-RS annotations:
```java
@Path("/benchmarks")
@Produces((MediaType.APPLICATION_JSON))
@Consumes((MediaType.MEDIA_TYPE_WILDCARD))
public class DemoController
```
### Supported Method Annotations
Controller class methods respect standard Swagger / JAX-RS annotations:
```java
@GET
@Path("/plaintext")
@Produces((MediaType.TEXT_PLAIN))
public ServerResponse plaintext(ServerRequest request)
{
return response("Hello, World!").textPlain();
}
```
> OpenAPI v3 annotations are supported when using the `proteus-openapi` module.
Proteus has three built in annotations:
* @Blocking
* ```io.sinistral.proteus.annotations.Blocking```
* Forces the request processing to block.
* @Debug
* ```io.sinistral.proteus.annotations.Debug```
* Dumps the request and response details to the log.
* @Chain
* ```io.sinistral.proteus.annotations.Chain```
* Wraps the endpoint handler in the provided array of ```io.undertow.server.HttpHandler``` classes.
Controller methods arguments support the following [JAX-RS annotations](https://docs.oracle.com/javaee/7/api/index.html?javax/ws/rs/PathParam.html):
* @PathParam
* ```javax.ws.rs.PathParam```
* Binds a url template parameter to the method parameter.
* i.e. if the path is `/dogs/{id}`, @PathParam("id") binds the path segment value to the method parameter.
* @QueryParam
* ```javax.ws.rs.QueryParam```
* Binds a HTTP query parameter to the method parameter.
* @FormParam
* ```javax.ws.rs.FormParam```
* Binds the form parameter within a request body to the method parameter.
* @HeaderParam
* ```javax.ws.rs.HeaderParam```
* Binds the value of a HTTP header to the method parameter.
* @CookieParam
* ```javax.ws.rs.CookieParam```
* Binds the value of a HTTP cookie to the method parameter.
* @BeanParam
* ```javax.ws.rs.BeanParam```
* Binds and attempts to convert the request body to an instance of the method parameter.
* @DefaultParam
* ```javax.ws.rs.DefaultParam```
* Sets the default value of a method parameter.
## Methods and Return Types
###### *The examples below assume you've included the `proteus-openapi` module.
#### Performance
For total control and maximum performance the raw `HttpServerExchange` can be passed to the controller method.
Methods that take an `HttpServerExchange` as an argument should __not__ return a value.
In this case the method takes on __full responsibility__ for completing the exchange.
#### Convenience
The static method ```io.sinistral.proteus.server.ServerResponse.response``` helps create ```ServerResponse``` instances that are the preferred return type for controller methods.
If the response object's `contentType` is not explicitly set, the `@Produces` annotation is used in combination with the `Accept` headers to determine the `Content-Type`.
For methods that should return a `String` or `ByteBuffer` to the client users can create responses like this:
```java
...
import static io.sinistral.proteus.server.ServerResponse.response;
...
@GET
@Path("/hello-world")
@Produces((MediaType.TEXT_PLAIN))
@Operation(description = "Serve a plaintext message using a ServerResponse")
public ServerResponse plaintext(ServerRequest request, @QueryParam("message") String message)
{
return response("Hello, World!").textPlain();
}
```
By default, passing a `String` to the static `ServerResponse.response` helper function will convert it into a `ByteBuffer`.
For other types of responses the following demonstrates the preferred style:
```java
...
import static io.sinistral.proteus.server.ServerResponse.response;
...
@GET
@Path("/world")
@Produces((MediaType.APPLICATION_JSON))
@Operation(description = "Return a world JSON object")
public ServerResponse getWorld(ServerRequest request, @QueryParam("id") Integer id, @QueryParam("randomNumber") Integer randomNumber )
{
return response(new World(id,randomNumber)).applicationJson();
}
```
The entity can be set separately as well:
> this disables static type checking!
```java
...
import static io.sinistral.proteus.server.ServerResponse.response;
...
@GET
@Path("/world")
@Produces((MediaType.APPLICATION_JSON))
@Operation(description = "Return a world JSON object")
public ServerResponse getWorld(ServerRequest request, Integer id, Integer randomNumber )
{
return response().entity(new World(id,randomNumber));
}
```
`CompletableFuture>` can also be used as a response type:
```java
...
import static io.sinistral.proteus.server.ServerResponse.response;
...
@GET
@Path("/future/user")
@Operation(description = "Future user endpoint" )
public CompletableFuture> futureUser( ServerRequest request )
{
return CompletableFuture.completedFuture(response( new User(123L) ).applicationJson() );
}
```
In this case a handler will be generated with the following source code:
```java
...
import static io.sinistral.proteus.server.ServerResponse.response;
...
public void handleRequest(final io.undertow.server.HttpServerExchange exchange) throws java.lang.Exception {
CompletableFuture> response = examplesController.futureUser();
response.thenAccept( r -> r.applicationJson().send(this,exchange) )
.exceptionally( ex -> {
throw new java.util.concurrent.CompletionException(ex);
} );
}
```
Controller Parameters
--------------
A ```io.sinistral.proteus.server.ServerRequest``` can be added as an endpoint parameter if the user wishes to access request properties that are not included in the parameter list.
Proteus is capable of parsing most types of endpoint parameters automatically so long as the type has a ```fromString```, ```valueOf```, or can be deserialized from JSON.
Multipart/Form file uploads can be passed to the endpoint methods as a ```java.io.File```, a ```java.nio.Files.Path```, or a ```java.nio.ByteBuffer```.
Optional parameters are also supported, here is a more complex endpoint demonstrating several parameter types:
```java
...
import static io.sinistral.proteus.server.ServerResponse.response;
...
@GET
@Path("/response/parameters/complex/{pathLong}")
@Operation(description = "Complex parameters")
public ServerResponse> complexParameters(
ServerRequest serverRequest,
@PathParam("pathLong") final Long pathLong,
@QueryParam("optionalQueryString") Optional optionalQueryString,
@QueryParam("optionalQueryLong") Optional optionalQueryLong,
@QueryParam("optionalQueryDate") Optional optionalQueryDate,
@QueryParam("optionalQueryUUID") Optional optionalQueryUUID,
@HeaderParam("optionalHeaderUUID") Optional optionalHeaderUUID,
@QueryParam("optionalQueryEnum") Optional optionalQueryEnum,
@HeaderParam("optionalHeaderString") Optional optionalHeaderString,
@QueryParam("queryUUID") UUID queryUUID,
@HeaderParam("headerString") String headerString,
@QueryParam("queryEnum") User.UserType queryEnum,
@QueryParam("queryIntegerList") List queryIntegerList,
@QueryParam("queryLong") Long queryLong
)
{
Map responseMap = new HashMap<>();
responseMap.put("optionalQueryString", optionalQueryString.orElse(null));
responseMap.put("optionalQueryLong", optionalQueryLong.orElse(null));
responseMap.put("optionalQueryDate", optionalQueryDate.map(OffsetDateTime::toString).orElse(null));
responseMap.put("optionalQueryUUID", optionalQueryUUID.map(UUID::toString).orElse(null));
responseMap.put("optionalHeaderUUID", optionalHeaderUUID.map(UUID::toString).orElse(null));
responseMap.put("optionalHeaderString", optionalHeaderString.orElse(null));
responseMap.put("optionalQueryEnum", optionalQueryEnum.orElse(null));
responseMap.put("queryEnum", queryEnum);
responseMap.put("queryUUID", queryUUID.toString());
responseMap.put("queryLong", queryLong);
responseMap.put("pathLong", pathLong);
responseMap.put("headerString", headerString);
responseMap.put("queryIntegerList", queryIntegerList);
return response(responseMap).applicationJson();
}
```
Services
-------------
Proteus has two standard services that extend the ```io.sinistral.proteus.services.DefaultService``` class.
The ```io.sinistral.proteus.services.DefaultService``` extends ```com.google.common.util.concurrent.AbstractIdleService``` and implements the ```io.sinistral.proteus.services.BaseService``` interface.
The ProteusApplication class expects services that implement ```io.sinistral.proteus.services.BaseService```.
- __AssetsService__
Included in the `proteus-core` module.
The AssetsService mounts an asset directory at a given path and is configured in your ```application.conf``` file.
The default configuration:
```
assets {
# the base path assets will be server from
path = "/public"
# the directory to load the assets from
dir = "./assets"
cache {
# cache timeout for the assets
time = 500
}
}
```
- __OpenAPIService__
Included in the `proteus-openapi` module.
The OpenAPIService generates an openapi-spec file from your endpoints and serves a swagger-ui and spec.
The default configuration serves the spec at `{application.path}/openapi.yaml` and the ui at `${application.path}/openapi`.
The service is configured in your ```application.conf``` file.
The default configuration:
```
openapi {
basePath= ${application.path}"/openapi"
port = ${application.ports.http}
specFilename="openapi.yaml"
openapi="3.0.1"
# openapi info
info {
title = ${application.name}
version = ${application.version}
description="Proteus Server"
}
securitySchemes {
ApiKeyAuth = {
type="apiKey"
in="header"
name="X-API-KEY"
}
}
servers = [
{
url=${application.path}
description="Default Server"
}
]
}
```
Plugins / Modules
-------------
_Where are all of the plugins for everything?!?!_
Proteus's design philosophy is a minimal one, so from our perspective managing a long list of plug and play plugins does not make that much sense.
Our experience with other frameworks has been that plugins are swiftly out-dated or hide too much of the underlying implementation to be useful.
However, making your own "plugin" is simple and much more gratifying.
Here is an example ```AWSModule``` that provides AWS S3 and SES support.
This example assumes you have defined the relevant aws properties in your config file:
```java
public class AWSModule extends AbstractModule
{
private static Logger log = LoggerFactory.getLogger(AWSModule.class.getCanonicalName());
@Inject
@Named("aws.accessKey")
protected String accessKey;
@Inject
@Named("aws.secretKey")
protected String secretKey;
public void configure()
{
AWSCredentials credentials = new BasicAWSCredentials(accessKey, secretKey);
AWSStaticCredentialsProvider credentialsProvider = new AWSStaticCredentialsProvider(credentials);
bind(AWSStaticCredentialsProvider.class).toInstance(credentialsProvider);
AmazonS3Client s3Client = (AmazonS3Client) AmazonS3ClientBuilder.standard().withCredentials(credentialsProvider).withRegion("us-west-2").build();
TransferManager transferManager = TransferManagerBuilder.standard().withMultipartUploadThreshold(8000000L).withS3Client(s3Client).withExecutorFactory(new ExecutorFactory()
{
@Override
public ExecutorService newExecutor()
{
ThreadFactory threadFactory = new ThreadFactory()
{
private int threadCount = 1;
public Thread newThread(Runnable r)
{
Thread thread = new Thread(r);
thread.setName("s3-transfer-manager-worker-" + threadCount++);
return thread;
}
};
return (ThreadPoolExecutor) Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors() * 2, threadFactory);
}
}).build();
AmazonSimpleEmailServiceAsyncClient sesClient = (AmazonSimpleEmailServiceAsyncClient) AmazonSimpleEmailServiceAsyncClientBuilder.standard().withCredentials(credentialsProvider).withRegion("us-west-2").build();
bind(AmazonSimpleEmailServiceAsyncClient.class).toInstance(sesClient);
bind(AmazonS3Client.class).toInstance(s3Client);
bind(TransferManager.class).toInstance(transferManager);
}
}
```
Now you can simply inject these in any controller by adding the following lines to the top of the controller:
```java
@Inject
protected TransferManager transferManager;
@Inject
protected AmazonS3Client s3Client;
@Inject
protected AmazonSimpleEmailServiceAsyncClient sesClient;
```
Also, please note that the implementation of ```ProteusApplication``` you are using would also need to add the following line before starting:
```java
app.addModule(AWSModule.class);
```
Under the Hood
---------------
Proteus takes your MVC controller classes and methods decorated with Swagger / JAX-RS annotations and generates native Undertow handler classes at runtime.
By default, the configuration is loaded into a `com.typesafe.config.Config` from a file at `conf/application.conf`.
`@Named` annotated properties of `Module`, `Service` and controller classes are bound to values found in the configuration.
Proteus applications generally have a main method that creates an instance of `io.sinistral.proteus.ProteusApplication`.
Prior to calling `start` on the `ProteusApplication` instance:
* Register `Service` classes via `registerService`
* Register `Module` classes via `registerModule`
* Register classes annotated with `javax.ws.rs.Path` via `registerController`
Out of the box you get a [Swagger UI](https://github.com/swagger-api/swagger-ui) at `/openapi`.
> A `Service` extends `com.google.common.util.concurrent.AbstractIdleService` or `io.sinistral.proteus.services.DefaultService`.
> A `Module` implements `com.google.inject.Module`.
Examples
----------
Check out [this example](https://github.com/noboomu/proteus-example) that also demonstrates [pac4j](https://github.com/pac4j/pac4j) integration.
Motivation
----------
* Several years of working with the [Play](http://playframework.com) framework convinced us there had to be a better way.
* We faced a Goldilocks Crisis with the existing alternatives: [Jooby](http://jooby.org) did too much, [light-4j](https://github.com/networknt/light-4j) didn't do quite enough.
* We needed a framework that enabled us to write clean MVC REST controllers that created Swagger docs we could plug directly into the existing [codegen](https://github.com/swagger-api/swagger-codegen) solutions.
* We needed a framework with minimal overhead and performance at or near that of raw [Undertow](http://undertow.io).
Inspired by [Play](http://playframework.com), [Jooby](http://jooby.org), and [light-4j](https://github.com/networknt/light-4j).
Dependencies
----------
* [JDK 17](http://www.oracle.com/technetwork/java/javase/downloads/index.html)
* [Maven 3](http://maven.apache.org/)
Built With
----------
- [Undertow](http://undertow.io) (server)
- [Guice](https://github.com/google/guice) (di)
- [Java Runtime Compiler](https://github.com/OpenHFT/Java-Runtime-Compiler) (runtime generated class compilation)
- [javapoet](https://github.com/square/javapoet) (runtime class generation)
- [Jackson](https://github.com/FasterXML/jackson-dataformat-xml) (xml)
- [jsoniter](http://jsoniter.com/) (json)
- [Logback](https://logback.qos.ch/) (logging)
- [Typesafe Config](https://github.com/typesafehub/config) (config)
- [Swagger](http://swagger.io/) (annotations and swagger spec)
- [JAX-RS](http://docs.oracle.com/javaee/6/api/javax/ws/rs/package-summary.html) (annotations only)
In The Wild
----------
* [Source One Parts Center](http://s1partscenter.com)
* [Wurrly](https://wurrly.com)