Skip to content

Latest commit

 

History

History
229 lines (181 loc) · 9.18 KB

jwt-auth.md

File metadata and controls

229 lines (181 loc) · 9.18 KB
Raw
title keywords description
jwt-auth
Apache APISIX
API Gateway
Plugin
JWT Auth
jwt-auth
This document contains information about the Apache APISIX jwt-auth Plugin.

Description

The jwt-auth Plugin is used to add JWT authentication to a Service or a Route.

A Consumer of the service then needs to provide a key through a query string, a request header or a cookie to verify its request.

Attributes

For Consumer:

Name Type Required Default Valid values Description
key string True Unique key for a Consumer.
secret string False The encryption key. If unspecified, auto generated in the background. This field supports saving the value in Secret Manager using the APISIX Secret resource.
public_key string True if RS256 or ES256 is set for the algorithm attribute. RSA or ECDSA public key. This field supports saving the value in Secret Manager using the APISIX Secret resource.
algorithm string False "HS256" ["HS256", "HS512", "RS256", "ES256"] Encryption algorithm.
exp integer False 86400 [1,...] Expiry time of the token in seconds.
base64_secret boolean False false Set to true if the secret is base64 encoded.
lifetime_grace_period integer False 0 [0,...] Define the leeway in seconds to account for clock skew between the server that generated the jwt and the server validating it. Value should be zero (0) or a positive integer.

NOTE: encrypt_fields = {"secret"} is also defined in the schema, which means that the field will be stored encrypted in etcd. See encrypted storage fields.

For Route:

Name Type Required Default Description
header string False authorization The header to get the token from.
query string False jwt The query string to get the token from. Lower priority than header.
cookie string False jwt The cookie to get the token from. Lower priority than query.
hide_credentials boolean False false Set to true will not pass the authorization request of header\query\cookie to the Upstream.

You can implement jwt-auth with HashiCorp Vault to store and fetch secrets and RSA keys pairs from its encrypted KV engine using the APISIX Secret resource.

Enable Plugin

To enable the Plugin, you have to create a Consumer object with the JWT token and configure your Route to use JWT authentication.

First, you can create a Consumer object through the Admin API:

:::note You can fetch the admin_key from config.yaml and save to an environment variable with the following command:

admin_key=$(yq '.deployment.admin.admin_key[0].key' conf/config.yaml | sed 's/"//g')

:::

curl http://127.0.0.1:9180/apisix/admin/consumers -H "X-API-KEY: $admin_key" -X PUT -d '
{
    "username": "jack",
    "plugins": {
        "jwt-auth": {
            "key": "user-key",
            "secret": "my-secret-key"
        }
    }
}'

:::note

The jwt-auth Plugin uses the HS256 algorithm by default. To use the RS256 algorithm, you can configure the public key and specify the algorithm:

curl http://127.0.0.1:9180/apisix/admin/consumers -H "X-API-KEY: $admin_key" -X PUT -d '
{
    "username": "kerouac",
    "plugins": {
        "jwt-auth": {
            "key": "user-key",
            "public_key": "-----BEGIN PUBLIC KEY-----\n……\n-----END PUBLIC KEY-----",
            "algorithm": "RS256"
        }
    }
}'

:::

Once you have created a Consumer object, you can configure a Route to authenticate requests:

curl http://127.0.0.1:9180/apisix/admin/routes/1 -H "X-API-KEY: $admin_key" -X PUT -d '
{
    "methods": ["GET"],
    "uri": "/index.html",
    "plugins": {
        "jwt-auth": {}
    },
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "127.0.0.1:1980": 1
        }
    }
}'

Example usage

You need first to issue a JWT token using some tool such as JWT.io's debugger or a programming language.

:::note

When you are issuing a JWT token, you have to update the payload with key matching the credential key you would like to use; and exp or nbf in UNIX timestamp.

e.g. payload={"key": "user-key", "exp": 1727274983}

:::

You can now use this token while making requests:

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">
...

Without the token, you will receive an error:

HTTP/1.1 401 Unauthorized
...
{"message":"Missing JWT token in request"}

You can also pass the token as query parameters:

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">
...

And also as cookies:

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">
...

Delete Plugin

To remove the jwt-auth Plugin, you can delete the corresponding JSON configuration from the Plugin configuration. APISIX will automatically reload and you do not have to restart for this to take effect.

curl http://127.0.0.1:9180/apisix/admin/routes/1 -H "X-API-KEY: $admin_key" -X PUT -d '
{
    "methods": ["GET"],
    "uri": "/index.html",
    "id": 1,
    "plugins": {},
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "127.0.0.1:1980": 1
        }
    }
}'