composer require laravel/passport

Laravel\Passport\PassportServiceProvider::class,

php artisan migrate

php artisan passport:install

<?php
namespace App;
use Laravel\Passport\HasApiTokens;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
class User extends Authenticatable
{
 use HasApiTokens, Notifiable;
}

class AuthServiceProvider extends ServiceProvider
{
 public function boot()
 {
  $this->registerPolicies();
  Passport::routes();
 }
}

Passport::routes(function(RouteRegistrar $router) {
 $router->forAccessTokens();
},['prefix' => 'api/oauth']);

'guards' => [
 'web' => [
  'driver' => 'session',
  'provider' => 'users',
 ],
 'api' => [
  'driver' => 'passport',
  'provider' => 'users',
 ],
],

function respond($status, $respond)
{
 return response()->json(['status' => $status, is_string($respond) ? 'message' : 'data' => $respond]);
}
function succeed($respond = 'Request success!')
{
 return respond(true, $respond);
}
function failed($respond = 'Request failed!')
{
 return respond(false, $respond);
}

<?php

namespace App\Http\Controllers\Traits;

use GuzzleHttp\Client;
use App\Exceptions\UnauthorizedException;
use GuzzleHttp\Exception\RequestException;

trait ProxyHelpers
{
 public function authenticate()
 {
  $client = new Client();
  try {
   $url = request()->root() . '/api/oauth/token';
   $params = array_merge(config('passport.proxy'), [
    'username' => request('email'),
    'password' => request('password'),
   ]);
   $respond = $client->request('POST', $url, ['form_params' => $params]);
  } catch (RequestException $exception) {
   throw new UnauthorizedException('请求失败，服务器错误');
  }
  if ($respond->getStatusCode() !== 401) {
   return json_decode($respond->getBody()->getContents(), true);
  }
  throw new UnauthorizedException('账号或密码错误');
 }
}

<?php
return [
 'proxy' => [
  'grant_type' => env('OAUTH_GRANT_TYPE'),
  'client_id'  => env('OAUTH_CLIENT_ID'),
  'client_secret' => env('OAUTH_CLIENT_SECRET'),
  'scope'   => env('OAUTH_SCOPE', '*'),
 ],
];

OAUTH_GRANT_TYPE=password
OAUTH_CLIENT_ID=2
OAUTH_CLIENT_SECRET=2HaTQJF33Sx98HjcKDiSVWZjrhVYGgkHGP8XLG1O
OAUTH_SCOPE=*

 public function login(Request $request)
{
  $needs = $this->validate($request, rules('login'));
  $user = User::where('email', $needs['email'])->first();

  if (!$user) {
   throw new UnauthorizedException('此用户不存在');
  }
  $tokens = $this->authenticate();
  return succeed(['token' => $tokens, 'user' => new UserResource($user)]);
}

{
 "token_type": "Bearer",
 "expires_in": 31536000,
 "access_token": "token_str",
 "refresh_token": "token_str"
}

axios.post('yourdomain/login',login_form).then(resource => { 
})

axios.defaults.headers.common['Authorization'] = token.token_type + ' ' + token.access_token