JWT

Enable JWT middleware

Install

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

Options

options	description	type	default
gin.middleware.jwt.enabled	Enable JWT middleware	boolean	false
gin.middleware.jwt.ignore	Ignore by path	[]string	[]
gin.middleware.jwt.skipVerify	Skip verify JWT token	boolean	false
gin.middleware.jwt.signerEntry	SignerEntry name	string	""
gin.middleware.jwt.symmetric.algorithm	Symmetric algorithm, options: HS256, HS384, HS512	string	""
gin.middleware.jwt.symmetric.token	Symmetric token	string	""
gin.middleware.jwt.symmetric.tokenPath	Symmetric token path	string	""
gin.middleware.jwt.asymmetric.algorithm	Asymmetric algorithm, options: RS256, RS384, RS512, ES256, ES384, ES512	string	""
gin.middleware.jwt.tokenLookup	JWT Token format，see example bellow	string	"header:Authorization"
gin.middleware.jwt.authScheme	Auth Scheme	string	Bearer

tokenLookup format

// Optional. Default value "header:Authorization".
// Possible values:
// - "header:<name>"
// - "query:<name>"
// Multiply sources example:
// - "header: Authorization,cookie: myowncookie"

Quick start

1.Create boot.yaml

---
gin:
  - name: greeter
    port: 8080
    enabled: true
    middleware:
      jwt:
        enabled: true
        symmetric:
          algorithm: HS256
          token: "my-secret"
#          tokenPath: ""
#        signerEntry: ""
#        ignore: [ "" ]
#        skipVerify: false
#        asymmetric:
#          algorithm: ""
#          privateKey: ""
#          privateKeyPath: ""
#          publicKey: ""
#          publicKeyPath: ""
#        tokenLookup: "header:<name>"
#        authScheme: "Bearer"

2.Create main.go

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"
  "github.com/rookie-ninja/rk-gin/v2/middleware/context"
  "net/http"
)

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())
}

func Greeter(ctx *gin.Context) {
  // Get JWT token
  rkginctx.GetJwtToken(ctx)

  ctx.JSON(http.StatusOK, &GreeterResponse{
    Message: fmt.Sprintf("Hello %s!", ctx.Query("name")),
  })
}

type GreeterResponse struct {
  Message string
}

3.Validation

• Valid JWT Token

$ curl "localhost:8080/v1/greeter?name=rk-dev" -H "Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.EpM5XBzTJZ4J8AfoJEcJrjth8pfH28LWdjLo90sYb9g"
{"Message":"Hello rk-dev!"}

• Invalid JWT Token

  $ curl localhost:8080/v1/greeter -H "Authorization: Bearer invalid-jwt-token"
  {
      "error":{
          "code":401,
          "status":"Unauthorized",
          "message":"Invalid or expired jwt",
          "details":[]
      }
  }
  

Cheers