apisix/doc/plugins/jwt-auth.md

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[Chinese](jwt-auth-cn.md)
# Summary
- [**Name**](#name)
- [**Attributes**](#attributes)
- [**How To Enable**](#how-to-enable)
- [**Test Plugin**](#test-plugin)
- [**Disable Plugin**](#disable-plugin)
## 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](https://jwt.io/) for more information.
## Attributes
|Name |Requirement |Description|
|--------- |--------|-----------|
| key |required|different `consumer` have different value, it's unique. different `consumer` use the same `key`, and there will be a request matching exception.|
| secret |optional|encryption key. if you do not specify, the value is auto-generated in the background.|
| algorithm | optional|encryption algorithm. support`HS256`, `HS384`, `HS512`, `RS256` and `ES256`,`HS256` is default.|
| exp |optional|token's expire time, the unit is second. for example, 5 minutes, need to set the value of 300.( 5 * 60 = 300 )|
## How To Enable
1. set a consumer and config the value of the `jwt-auth` option
```shell
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"
}
}
}'
```
you can visit Dashboard `http://127.0.0.1:9080/apisix/dashboard/` and add a Consumer through the web console:
![](../images/plugin/jwt-auth-1.png)
then add jwt-auth plugin in the Consumer page:
![](../images/plugin/jwt-auth-2.png)
2. add a Route or add a Service , and enable the `jwt-auth` plugin
```shell
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:
```shell
$ 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:
```shell
$ 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:
```shell
$ 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:
```shell
$ 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:
```shell
$ 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:
```shell
$ 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
}
}
}'
```