嵌入式参数

rk-boot 中，可以使用 embed.FS 给 rk-boot 提供 boot.yaml 等静态文件。

概述

目前，用户可以把 Swagger UI 参数文件, API Docs 参数文件和 boot.yaml 文件通过 embed.FS 传递给 rk-boot.

快速开始

1.安装

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

2.创建 boot.yaml

echo:
  - name: greeter
    port: 8080
    enabled: true

3.创建 main.go

package main

import (
    "context"
    "embed"
    "fmt"
    "github.com/labstack/echo/v4"
    "github.com/rookie-ninja/rk-boot/v2"
    "github.com/rookie-ninja/rk-entry/v2/entry"
    "github.com/rookie-ninja/rk-echo/boot"
    "net/http"
)

//go:embed boot.yaml
var bootRaw []byte

func main() {
    // Create a new boot instance.
    boot := rkboot.NewBoot(rkboot.WithBootConfigRaw(bootRaw))

    // Register handler
    echoEntry := rkecho.GetEchoEntry("greeter")
    echoEntry.Echo.GET("/v1/greeter", Greeter)

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

    boot.WaitForShutdownSig(context.TODO())
}

func Greeter(ctx echo.Context) error {
  return ctx.JSON(http.StatusOK, &GreeterResponse{
    Message: fmt.Sprintf("Hello %s!", ctx.QueryParam("name")),
  })
}

type GreeterResponse struct {
    Message string
}

4.启动 main.go

$ go run main.go
2022-04-17T00:47:34.597+0800    INFO    boot/echo_entry.go:656   Bootstrap GinEntry      {"eventId": "fe0b0e26-1271-4294-81c8-4f675e308335", "entryName": "greeter", "entryType": "GinEntry"}
------------------------------------------------------------------------
endTime=2022-04-17T00:47:34.597345+08:00
startTime=2022-04-17T00:47:34.597248+08:00
elapsedNano=96828
timezone=CST
ids={"eventId":"fe0b0e26-1271-4294-81c8-4f675e308335"}
app={"appName":"rk","appVersion":"local","entryName":"greeter","entryType":"EchoEntry"}
env={"arch":"amd64","domain":"*","hostname":"lark.local","localIP":"192.168.101.5","os":"darwin"}
payloads={"ginPort":8080}
counters={}
pairs={}
timing={}
remoteAddr=localhost
operation=Bootstrap
resCode=OK
eventStatus=Ended
EOE

5.验证

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

Swagger UI 与 Docs UI

我们同时还可以让 rk-boot 使用 embedFS 读取 swagger 相关的参数文件。

1.已存在的 Swagger JSON 文件

├── docs
│   ├── swagger.json
│   └── swagger.yaml

2.创建 boot.yaml

echo:
  - name: greeter
    port: 8080
    enabled: true
    sw:
      enabled: true
    docs:
      enabled: true

3.创建 main.go

package main

import (
    "context"
    "embed"
    "fmt"
    "github.com/labstack/echo/v4"
    "github.com/rookie-ninja/rk-boot/v2"
    "github.com/rookie-ninja/rk-entry/v2/entry"
    "github.com/rookie-ninja/rk-echo/boot"
    "net/http"
)

//go:embed boot.yaml
var bootRaw []byte

//go:embed ../../..
var docsFS embed.FS

//go:embed docs
var swFS embed.FS

func init() {
    rkentry.GlobalAppCtx.AddEmbedFS(rkentry.SWEntryType, "greeter", &docsFS)
    rkentry.GlobalAppCtx.AddEmbedFS(rkentry.DocsEntryType, "greeter", &swFS)
}

func main() {
    // Create a new boot instance.
    boot := rkboot.NewBoot(rkboot.WithBootConfigRaw(bootRaw))

    // Register handler
    echoEntry := rkecho.GetEchoEntry("greeter")
    echoEntry.Echo.GET("/v1/greeter", Greeter)

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

    boot.WaitForShutdownSig(context.TODO())
}

func Greeter(ctx echo.Context) error {
    return ctx.JSON(http.StatusOK, &GreeterResponse{
        Message: fmt.Sprintf("Hello %s!", ctx.QueryParam("name")),
    })
}

type GreeterResponse struct {
    Message string
}