### Install LexikJWTAuthenticationBundle

Source: https://symfony.com/bundles/LexikJWTAuthenticationBundle/current/index.html

Use Composer to add the bundle to your Symfony project dependencies.

```bash
$ php composer.phar require "lexik/jwt-authentication-bundle"
```

--------------------------------

### Example JWT Response

Source: https://symfony.com/bundles/LexikJWTAuthenticationBundle/current/index.html

The expected JSON response format containing the JWT token after a successful authentication request.

```json
{
    "token" : "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXUyJ9.eyJleHAiOjE0MzQ3Mjc1MzYsInVzZXJuYW1lIjoia29ybGVvbiIsImlhdCI6IjE0MzQ2NDExMzYifQ.nh0L_wuJy6ZKIQWh6OrW5hdLkviTs1_bau2GqYdDCB0Yqy_RplkFghsuqMpsFls8zKEErdX5TYCOR7muX0aQvQxGQ4mpBkvMDhJ4-pE4ct2obeMTr_s4X8nC00rBYPofrOONUOR4utbzvbd4d2xT_tj4TdR_0tsr91Y7VskCRFnoXAnNT-qQb7ci7HIBTbutb9zVStOFejrb4aLbr7Fl4byeIEYgp2Gd7gY"
}
```

--------------------------------

### Decode JWT Token

Source: https://symfony.com/bundles/LexikJWTAuthenticationBundle/current/9-access-authenticated-jwt-token.html

Call the `decode()` method on the injected `JWTTokenManagerInterface` and pass the token obtained from `TokenStorageInterface` to get the decoded JWT payload. This method returns the decoded information of the JWT token sent in the current request.

```php
$decodedJwtToken = $this->jwtManager->decode($this->tokenStorageInterface->getToken());
```

--------------------------------

### Configure Environment Variables

Source: https://symfony.com/bundles/LexikJWTAuthenticationBundle/current/index.html

Define the paths to your SSL keys and the passphrase in your .env file.

```text
JWT_SECRET_KEY=%kernel.project_dir%/config/jwt/private.pem
JWT_PUBLIC_KEY=%kernel.project_dir%/config/jwt/public.pem
JWT_PASSPHRASE=
```

--------------------------------

### Configure Bundle Parameters

Source: https://symfony.com/bundles/LexikJWTAuthenticationBundle/current/index.html

Set the key paths, passphrase, and token TTL in the bundle configuration file.

```yaml
# config/packages/lexik_jwt_authentication.yaml
lexik_jwt_authentication:
    secret_key: '%env(resolve:JWT_SECRET_KEY)%' # required for token creation
    public_key: '%env(resolve:JWT_PUBLIC_KEY)%' # required for token verification
    pass_phrase: '%env(JWT_PASSPHRASE)%' # required for token creation
    token_ttl: 3600 # in seconds, default is 3600
```

--------------------------------

### Register the Bundle

Source: https://symfony.com/bundles/LexikJWTAuthenticationBundle/current/index.html

Add the bundle class to your application's bundle configuration file.

```php
return [
    //...
    Lexik\Bundle\JWTAuthenticationBundle\LexikJWTAuthenticationBundle::class => ['all' => true],
];
```

--------------------------------

### Configure API Platform Integration

Source: https://symfony.com/bundles/LexikJWTAuthenticationBundle/current/index.html

Override default parameters for API Platform integration if necessary.

```yaml
# config/packages/lexik_jwt_authentication.yaml
lexik_jwt_authentication:
    # ...
    api_platform:
        check_path: /api/login_check
        username_path: email
        password_path: security.credentials.password
```

--------------------------------

### Configure Security Firewalls

Source: https://symfony.com/bundles/LexikJWTAuthenticationBundle/current/index.html

Define the login and API firewalls to handle JWT authentication. Ensure the login firewall is placed before the API firewall.

```yaml
# config/packages/security.yaml
security:
    enable_authenticator_manager: true # Only for Symfony 5.4
    # ...

    firewalls:
        login:
            pattern: ^/api/login
            stateless: true
            json_login:
                check_path: /api/login_check
                success_handler: lexik_jwt_authentication.handler.authentication_success
                failure_handler: lexik_jwt_authentication.handler.authentication_failure

        api:
            pattern:   ^/api
            stateless: true
            jwt: ~

    access_control:
        - { path: ^/api/login, roles: PUBLIC_ACCESS }
        - { path: ^/api,       roles: IS_AUTHENTICATED_FULLY }
```

--------------------------------

### Configure Routing

Source: https://symfony.com/bundles/LexikJWTAuthenticationBundle/current/index.html

Define the route for the login check endpoint.

```yaml
# config/routes.yaml
api_login_check:
    path: /api/login_check
```

--------------------------------

### Generate SSL Keypair

Source: https://symfony.com/bundles/LexikJWTAuthenticationBundle/current/index.html

Generate the private and public keys required for JWT signing and verification.

```bash
$ php bin/console lexik:jwt:generate-keypair
```

--------------------------------

### Obtain JWT Token via cURL

Source: https://symfony.com/bundles/LexikJWTAuthenticationBundle/current/index.html

Use these commands to authenticate a user and retrieve a JWT token. Ensure the host and port are adapted to your environment.

```bash
$ curl -X POST -H "Content-Type: application/json" https://localhost/api/login_check -d '{"username":"johndoe","password":"test"}'
```

```bash
C:\> curl -X POST -H "Content-Type: application/json" https://localhost/api/login_check --data {"username":"johndoe","password":"test"}
```

--------------------------------

### Apache VirtualHost Authorization Header Configuration

Source: https://symfony.com/bundles/LexikJWTAuthenticationBundle/current/index.html

Required configuration for Apache to prevent it from stripping the Authorization header when using JWT authentication.

```apache
SetEnvIf Authorization "(.*)" HTTP_AUTHORIZATION=$1
```

--------------------------------

### Inject TokenStorageInterface and JWTTokenManagerInterface

Source: https://symfony.com/bundles/LexikJWTAuthenticationBundle/current/9-access-authenticated-jwt-token.html

Inject these interfaces into your controller or service constructor to gain access to JWT token functionalities. Ensure these services are available in your dependency injection container.

```php
use Lexik\Bundle\JWTAuthenticationBundle\Services\JWTTokenManagerInterface;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;

public function __construct(TokenStorageInterface $tokenStorageInterface, JWTTokenManagerInterface $jwtManager)
{
    $this->jwtManager = $jwtManager;
    $this->tokenStorageInterface = $tokenStorageInterface;
}
```

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