01 Implicit Route Binding

• bind primary key

  Route::get('users/{user}', function(App\User $user){
    return $user
  });
  

• bind other key

  Route::get('users/{userName}', function(App\User $user){
    return $user;
  });
  
  // RouteServiceProvider.php
  \Route::bind('userName', function($user_name){
    return \App\User::where('user_name', $user_name)->firstOrFail();
  });
  

02 API Rate Limiting

Route::get('/api/search/{term}', function($term){
  return [
    'results' => $term
  ];
})->middleware('throttle:30,5');  // 30 requests per 5 minute


// framework/src/Illuminate/Routing/Middleware/ThrottleRequests.php
$key = $this->resolveRequestSignature($request);

/**
 * Resolve request signature.
 *
 * @param  \Illuminate\Http\Request  $request
 * @return string
 */
protected function resolveRequestSignature($request)
{
    return $request->fingerprint();
}

/**
 * Get a unique fingerprint for the request / route / IP address.
 *
 * @return string
 */
public function fingerprint()
{
    if (! $this->route()) {
        throw new RuntimeException('Unable to generate fingerprint. Route unavailable.');
    }
    return sha1(
        implode('|', $this->route()->methods()).
        '|'.$this->route()->domain().
        '|'.$this->route()->uri().
        '|'.$this->ip()
    );
}