ewe-studios / sabuhp

[Experiment] Service Layer backhone for BE

SabuHP

Power your backend with a simple service architecture that provides direct connection into a function/processor network through supported protocols (HTTP, WebSocket, ServerSent Events).

SabuHP exposes a two server system by providing a Client Server and a Worker Server architecture that allow better scaling of client connections and business logic processing in the new age of message busses as backbone of communications.

The client server exists to allow direct connections from clients (CLI, Browsers) which can directly send desired request payload to desired topics and receive response from a target message bus. This allows us decouple the definition of our APIs, and their desired behaviour from how clients interact and connect to with them. The client servers purpose is to hide way the needed intricacies to access this message queues or buses, providing a clear and familiar APIs that clients can work with such systems with ease.

The worker server exists to provided scalable services that can be horizontal scaled with only required to be able to connect to a message bus to listen and process request payload for target topics with ease. This allows us decouple entirely how we connect and process messages or work within a software systems.

Protocols

SabuHP supports the following protocols for communicating with the service server (allowing both backend and frontend easily inter-related through such protocols):

• Websocket
• HTTP
• HTTP Server Sent Events

Getting

go get -u github.com/ewe-studios/sabuhp

Client Server

Client servers provides a server which hosts all necessary client protocols (http, websocket, server-sent event routes) which allows clients (browsers, CLI agents) to connect into the SabuHP networks allowing these clients to deliver requests and receive responses for their requests

package main

import (
	"context"
	"log"

	"github.com/influx6/npkg/ndaemon"

	"github.com/ewe-studios/sabuhp"

	"github.com/ewe-studios/sabuhp/bus/redispub"
	"github.com/ewe-studios/sabuhp/servers/clientServer"
	redis "github.com/go-redis/redis/v8"
)

func main() {
	var ctx, canceler = context.WithCancel(context.Background())
	ndaemon.WaiterForKillWithSignal(ndaemon.WaitForKillChan(), canceler)

	var logger sabuhp.GoLogImpl

	var redisBus, busErr = redispub.Stream(redispub.Config{
		Logger: logger,
		Ctx:    ctx,
		Redis:  redis.Options{},
		Codec:  clientServer.DefaultCodec,
	})

	if busErr != nil {
		log.Fatalf("Failed to create bus connection: %q\n", busErr.Error())
	}

	var cs = clientServer.New(
		ctx,
		logger,
		redisBus,
		clientServer.WithHttpAddr("0.0.0.0:9650"),
	)

	cs.Start()

	log.Println("Starting client server")
	if err := cs.ErrGroup.Wait(); err != nil {
		log.Fatalf("service group finished with error: %+s", err.Error())
	}
}

Worker Server

Worker servers exposes a server with different registered workers (Functions, Processors) who will listen to the connected message bus for new requests to be processed. These servers can be scaled horizontally and grouped into listen groups based on support by the underline message bus to create a cloud of processors that allow endless scaling.

package main

import (
	"context"
	"fmt"
	"log"

	"github.com/ewe-studios/sabuhp/actions"

	"github.com/ewe-studios/sabuhp/servers/serviceServer"

	"github.com/influx6/npkg/ndaemon"

	"github.com/ewe-studios/sabuhp"

	"github.com/ewe-studios/sabuhp/bus/redispub"
	"github.com/ewe-studios/sabuhp/servers/clientServer"
	redis "github.com/go-redis/redis/v8"
)

func main() {
	var ctx, canceler = context.WithCancel(context.Background())
	ndaemon.WaiterForKillWithSignal(ndaemon.WaitForKillChan(), canceler)

	var logger sabuhp.GoLogImpl

	var redisBus, busErr = redispub.Stream(redispub.Config{
		Logger: logger,
		Ctx:    ctx,
		Redis:  redis.Options{},
		Codec:  clientServer.DefaultCodec,
	})

	if busErr != nil {
		log.Fatalf("Failed to create bus connection: %q\n", busErr.Error())
	}

	var workers = actions.NewWorkerTemplateRegistry()
	var cs = serviceServer.New(
		ctx,
		logger,
		redisBus,
		serviceServer.WithWorkerRegistry(workers),
	)

	fmt.Println("Starting worker service")
	cs.Start()

	fmt.Println("Started worker service")
	if err := cs.ErrGroup.Wait(); err != nil {
		log.Fatalf("service group finished with error: %+s", err.Error())
	}

	fmt.Println("Closed worker service")
}

Contact

Ewetumo Alexander @influx6

License

Source code is available under the MIT License.