dartrs 0.6.0

Simple Restful server implementation

Dart Restful Webserver

A server to make development of ReSTful webservices easy and fun

Getting Started

RestfulServer.bind().then((server) {
  server
    ..onGet("/echo", (request, params) => request.response.write("ECHO"))
    ..onPut("/put", (request, uriParams, body) => request.response.statusCode = HttpStatus.NO_CONTENT);
});

POST/PUT/PATCH will handle parsing the body if provided callback has three parameters

..onPost("/post", (request, uriParams, body) => request.response.statusCode = HttpStatus.CREATED)

Pre processing handler can be registed which will be invoked on every request

var old = server.preProcessor;

server.preProcessor = (request) {
    request.response.headers.contentType = ContentTypes.APPLICATION_JSON;
    old(request);
  };

Uri Parameters

Uri parameters, denoted by {} are automagically parsed and provided as second argument to the callback

..onGet("/api/{version}/{user}", (request, params) {
    request.response.write("Version ${params['version']} with user ${params['user']}"
  }));

HTTPS (SSL/TLS)

The good folks at google decided to go with NSS see (https://developer.mozilla.org/en-US/docs/NSS/Tools) and documentation on SecureSocket.initialize(..) Luckily, default tests have a functioning key pair, which have been appropriated for testing needs (test/pkcert)

SecureSocket.initialize(database: "pkcert", password: 'dartdart', useBuiltinRoots: false);
RestfulServer.bindSecure(port: 8443, certificateName: "localhost_cert").then((server) {
  server
    ..onGet("/secure", (request, params) => request.response.write("SECURE"));
});

Annotations and Context Scan

Jaxrs-style annotations and bootstrap via a library scanner:

@Path("/hello")
@GET
void echo(request, params) {
  request.response.write("hi");
}

RestfulServer.bind(host: "127.0.0.1", port: 8080).then((server) {
  server
    ..onGet("/mixed", (request, params) => request.response.write("I am all mixed up"))
    ..contextScan();
  });

Isolates

There are currently some strange limitations on what can be sent across isolates Request and Response are proxies with limited functionality.

To init a multi-isolate server, a "functor" (a class with 'call' method) needs to be defined and passed in.

Keep in mind that since streams cannot be passed between isolates, some of the io happens on the main isolate

void main() {

  RestfulServer.bind().then((server) {
    server
    ..isolates=22
    ..isolateInit = new MyInit();
  });
}

class MyInit {
  call(RestfulServer server) {
    print("initializing server");
    server
    ..onPost("/api/isolate", (request, params, body) {
      request.response.statusCode = "777";
      request.response.headers.add("X-TEST", "WORKS");
      request.response.headers.contentType = ContentTypes.TEXT_PLAIN;
      request.response.writeln("$body ${new DateTime.now()}");
      request.response.writeln("����������������! | ������ | pr��ce");
    })
    ..onGet("/api/get", (request, params) {
      request.response.writeln("GOT");
    });
  }
}

Web Sockets

server
  ..onWs("/ws/echo", (data) {
    print(data);
    return "ACK $data";
  });

Default Endpoints

By default, the server will list all registered endpoints if you issue:

OPTIONS /

Logging

log4dart is used for logging on the server.

See https://github.com/ltackmann/log4dart/blob/master/doc/Config.md for ways to configure