rkdev.info

Channel	Code
Wechat group (CN)
Slack channel (EN)	#rk-boot

RK family is bumping up to V2 which will not be full compatible with V1 including documentation. Please refer to V1 as needed.

From V2, rk-boot will not include any of dependencies which implement rkentry.Entry. As a result, user need to pull rk-boot and rk-xxx or user implemented Entry manually.

We think it will be a better experience for dependency management.

For example, if we hope to start Gin web framework, we need to pull both of rk-boot and rk-gin. example

V2 documentation will be updated soon. Please refer to github docs now.

rk-boot is a library which support bootstrapping server at runtime via YAML file. It is a little like spring boot way.

We hope user can achieve bellow goals while designing/implementing microservice.

• 1: Decide which dependencies to use. (For example, MySQL, Redis, AWS, Gin are the required dependencies.)
• 2: Add dependencies in boot.yaml (where rk-boot will automatically initiate dependency client instances.)
• 3: Implement your own codes (without caring about logging, metrics and tracing of dependency client.)
• 4: Monitor service and dependency (via a standard dashboard.)

We are planning to achieve this goal by unify dependency input(by boot.yaml) and output(logging format, metrics format etc).

We will add more bootstrapper for popular third-party dependencies.

• Build application with unified project layout at enterprise level .
• Build API with the unified format of logging, metrics, tracing, authorization at enterprise level.
• Make application replace core dependencies quickly.
• Save learning time of writing initializing procedure of popular frameworks and libraries.
• User defined Entry for customization.

We will migrate dependencies from v1 to v2 as quick as possible.

We will start gin-gonic/gin server with rk-boot.

• Installation rk-boot is required one for all RK family. We pulled rk-gin as dependency since we are testing GIN.

go get github.com/rookie-ninja/rk-boot/v2
go get github.com/rookie-ninja/rk-gin/v2

• boot.yaml

---
gin:
  - name: greeter                                          # Required
    port: 8080                                             # Required
    enabled: true                                          # Required
    sw:
      enabled: true                                        # Optional, default: false
    docs:
      enabled: true                                        # Optional, default: false

• main.go

// Copyright (c) 2021 rookie-ninja
//
// Use of this source code is governed by an Apache-style
// license that can be found in the LICENSE file.

package main

import (
	"context"
	"fmt"
	"github.com/gin-gonic/gin"
	"github.com/rookie-ninja/rk-boot/v2"
	"github.com/rookie-ninja/rk-gin/v2/boot"
	"net/http"
)

// @title Swagger Example API
// @version 1.0
// @description This is a sample rk-demo server.
// @termsOfService http://swagger.io/terms/

// @securityDefinitions.basic BasicAuth

// @contact.name API Support
// @contact.url http://www.swagger.io/support
// @contact.email [email protected]

// @license.name Apache 2.0
// @license.url http://www.apache.org/licenses/LICENSE-2.0.html
func main() {
	// Create a new boot instance.
	boot := rkboot.NewBoot()

	// Register handler
	entry := rkgin.GetGinEntry("greeter")
	entry.Router.GET("/v1/greeter", Greeter)

	// Bootstrap
	boot.Bootstrap(context.TODO())

	boot.WaitForShutdownSig(context.TODO())
}

// Greeter handler
// @Summary Greeter
// @Id 1
// @Tags Hello
// @version 1.0
// @Param name query string true "name"
// @produce application/json
// @Success 200 {object} GreeterResponse
// @Router /v1/greeter [get]
func Greeter(ctx *gin.Context) {
	ctx.JSON(http.StatusOK, &GreeterResponse{
		Message: fmt.Sprintf("Hello %s!", ctx.Query("name")),
	})
}

type GreeterResponse struct {
	Message string
}

• validate

$ go run main.go

$ curl -X GET localhost:8080/v1/greeter?name=rk-dev
{"Message":"Hello rk-dev!"}

$ curl -X GET localhost:8080/rk/v1/ready
{
  "ready": true
}

$ curl -X GET localhost:8080/rk/v1/alive
{
  "alive": true
}

• Swagger UI: http://localhost:8080/sw

• Docs UI via: http://localhost:8080/docs

Simply run make all to validate your changes. Or run codes in example/ folder.

• make all If proto or files in boot/assets were modified, then we need to run it.

Run unit test with make test command.

github workflow will automatically run unit test and golangci-lint for testing and lint validation.

We encourage and support an active, healthy community of contributors — including you! Details are in the contribution guide and the code of conduct. The rk maintainers keep an eye on issues and pull requests, but you can also report any negative conduct to [email protected].

Released under the Apache 2.0 License.