loopback/server/middleware/context.js

// Copyright IBM Corp. 2014,2016. All Rights Reserved.
// Node module: loopback
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT

module.exports = function() {
  throw new Error('loopback#context middleware was removed in version 3.0. ' +
    'See https://docs.strongloop.com/display/APIC/Using%20current%20context ' +
    'for more details.');
};