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jwt-auth.md

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Summary

Name

jwt-auth is an authentication plugin that need to work with consumer. Add JWT Authentication to a service or route.

The consumer then adds its key to the query string parameter, request header, or cookie to verify its request.

For more information on JWT, refer to JWT for more information.

Attributes

Name Type Requirement Default Valid Description
key string required different consumer have different value, it's unique. different consumer use the same key, and there will be a request matching exception.
secret string optional encryption key. if you do not specify, the value is auto-generated in the background.
public_key string optional RSA public key, required when algorithm attribute selects RS256 algorithm.
private_key string optional RSA private key, required when algorithm attribute selects RS256 algorithm.
algorithm string optional "HS256" ["HS256", "HS512", "RS256"] encryption algorithm.
exp integer optional 86400 [1,...] token's expire time, in seconds
base64_secret boolean optional false whether secret is base64 encoded

API

This plugin will add /apisix/plugin/jwt/sign to sign. You may need to use interceptors to protect it.

How To Enable

  1. set a consumer and config the value of the jwt-auth option
curl http://127.0.0.1:9080/apisix/admin/consumers -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "username": "jack",
    "plugins": {
        "jwt-auth": {
            "key": "user-key",
            "secret": "my-secret-key"
        }
    }
}'

jwt-auth uses the HS256 algorithm by default, and if you use the RS256 algorithm, you need to specify the algorithm and configure the public key and private key, as follows:

curl http://127.0.0.1:9080/apisix/admin/consumers -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "username": "kerouac",
    "plugins": {
        "jwt-auth": {
            "key": "user-key",
            "public_key": "-----BEGIN PUBLIC KEY-----\n……\n-----END PUBLIC KEY-----",
            "private_key": "-----BEGIN RSA PRIVATE KEY-----\n……\n-----END RSA PRIVATE KEY-----",
            "algorithm": "RS256"
        }
    }
}'

you can visit Dashboard http://127.0.0.1:9080/apisix/dashboard/ and add a Consumer through the web console:

then add jwt-auth plugin in the Consumer page:

  1. add a Route or add a Service, and enable the jwt-auth plugin
curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "methods": ["GET"],
    "uri": "/index.html",
    "plugins": {
        "jwt-auth": {}
    },
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "39.97.63.215:80": 1
        }
    }
}'

Test Plugin

get the token in jwt-auth plugin:

$ curl http://127.0.0.1:9080/apisix/plugin/jwt/sign?key=user-key -i
HTTP/1.1 200 OK
Date: Wed, 24 Jul 2019 10:33:31 GMT
Content-Type: text/plain
Transfer-Encoding: chunked
Connection: keep-alive
Server: APISIX web server

eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJrZXkiOiJ1c2VyLWtleSIsImV4cCI6MTU2NDA1MDgxMX0.Us8zh_4VjJXF-TmR5f8cif8mBU7SuefPlpxhH0jbPVI

try request with token

  • without token:
$ curl http://127.0.0.1:9080/index.html -i
HTTP/1.1 401 Unauthorized
...
{"message":"Missing JWT token in request"}
  • request header with token:
$ curl http://127.0.0.1:9080/index.html -H 'Authorization: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJrZXkiOiJ1c2VyLWtleSIsImV4cCI6MTU2NDA1MDgxMX0.Us8zh_4VjJXF-TmR5f8cif8mBU7SuefPlpxhH0jbPVI' -i
HTTP/1.1 200 OK
Content-Type: text/html
Content-Length: 13175
...
Accept-Ranges: bytes

<!DOCTYPE html>
<html lang="cn">
...
  • request params with token:
$ curl http://127.0.0.1:9080/index.html?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJrZXkiOiJ1c2VyLWtleSIsImV4cCI6MTU2NDA1MDgxMX0.Us8zh_4VjJXF-TmR5f8cif8mBU7SuefPlpxhH0jbPVI -i
HTTP/1.1 200 OK
Content-Type: text/html
Content-Length: 13175
...
Accept-Ranges: bytes

<!DOCTYPE html>
<html lang="cn">
...
  • request cookie with token:
$ curl http://127.0.0.1:9080/index.html --cookie jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJrZXkiOiJ1c2VyLWtleSIsImV4cCI6MTU2NDA1MDgxMX0.Us8zh_4VjJXF-TmR5f8cif8mBU7SuefPlpxhH0jbPVI -i
HTTP/1.1 200 OK
Content-Type: text/html
Content-Length: 13175
...
Accept-Ranges: bytes

<!DOCTYPE html>
<html lang="cn">
...

Disable Plugin

When you want to disable the jwt-auth plugin, it is very simple, you can delete the corresponding json configuration in the plugin configuration, no need to restart the service, it will take effect immediately:

$ curl http://127.0.0.1:2379/v2/keys/apisix/routes/1 -X PUT -d value='
{
    "methods": ["GET"],
    "uri": "/index.html",
    "id": 1,
    "plugins": {},
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "39.97.63.215:80": 1
        }
    }
}'