Laravel Passport tokensExpireIn seems not working

Personal access tokens are always long-lived. Their lifetime is not modified when using the tokensExpireIn or refreshTokensExpireIn methods - as explained in Laravel's official documentation (https://laravel.com/docs/5.7/passport#personal-access-tokens).

The option of editing PassportServiceProvider.php in the vendor directory is a bad idea. Every time, you make an update (e.g composer update/install) or by another developer in production, code will be reverted to status quo, and it would start failing.

A better approach is to use Password Grant Tokens. The OAuth2 password grant allows your other first-party clients, such as a mobile application, to obtain an access token using an e-mail address / username and password. This allows you to issue access tokens securely to your first-party clients without requiring your users to go through the entire OAuth2 authorization code redirect flow. Be sure that you have duly installed passport (See Guide: https://laravel.com/docs/5.7/passport#installation), then run this command

php artisan passport:client --password

Having done this, you can request an access token by issuing a POST request to /oauth/token. Remember, this route is already registered by the Passport::routes method so there is no need to define it manually. If the request is successful, you will receive an access_token and refresh_token in the JSON response from the server. See payload sample below:

{
    "grant_type" : "password",
    "client_id":"your-client-id",
    "client_secret":"your-client-secret",
    "username":"[email protected]",
    "password":"123456",
    "scope":""
}

Sample response:

{
"token_type":"Bearer",
"expires_in":1296000,
"access_token":"eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImp0aSI6IjVkMWJjN2NhOTU0ZWU2YTZmOGNkMGEyOTFjOTI5YzU4Zjk3ODk3M2YxZDJmNjQ2NjkyZjhjODQyZjYxNTBjZGRiYzMwY2RjMzRmZjJhYmU1In0.eyJhdWQiOiI4IiwianRpIjoiNWQxYmM3Y2E5NTRlZTZhNmY4Y2QwYTI5MWM5MjljNThmOTc4OTczZjFkMmY2NDY2OTJmOGM4NDJmNjE1MGNkZGJjMzBjZGMzNGZmMmFiZTUiLCJpYXQiOjE1NDkyOTI5MjcsIm5iZiI6MTU0OTI5MjkyNywiZXhwIjoxNTUwNTg4OTI3LCJzdWIiOiIxIiwic2NvcGVzIjpbXX0.cSvu30xAT-boA5zmVuxTr0TfH_5MYuVWYi6NVQRbryZSswt8EAFTi5QXHH1f0O63DWnLA6VFBS2AfDe4-ryJZACDnt4gtPJOeuu1rNMZ53MU1vjxnyC8FsYz8v9vmYJsZPKqfTJpuJFYRFh7kkV7uWAmrEkuF3POnDn-GjW50f4i26lIZW5ta5j4nZQrIJCQUEzwXaQtn9H-qef3bTWAaplWaV-k7Blic-0TXXVfWa_CdoKCAzHROVBRWY1Idhe1LJkvGKldUGzUfliiB1x7EVVInq94VYEP5d9__90Z2UMUn5dCEgWkXvcEHYy87_4OSwu4TQk_f3hD82OVOEtJGgPyJqK51WqnQCBYwNtxNjqAW2oaMgpritp3G8nccUiyhkE4Pd_kj3cb2OvSNRXdDS9z-RnJb1OXUkja-4Xe_JfIWUjlTnkss18xMg89hcU_3xtBwUXBWHgffzcbNoI1oOwUL6Whekduiy8csf665v0cnzkPXISmvyGhiMseIlBEN9m9uESaJqD_g7WzbsEs7meI0CAF3230UgrI1MdYSAJMW0mMPF9EScH31a_Qpde5O233Ty6-S4NAp323Wneqs_jpGSfw81CvoI1JeY0hZccRC-MBBsQ2Ox7AM36H5L3p-ybricmT3oCcHEqhufq-ygyfqk1RufJwwRblwYPyaJE",
"refresh_token":"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"
}