Ghost/ghost/admin/app/mirage/config.js

import mockAuthentication from './config/authentication';
import mockPosts from './config/posts';
import mockRoles from './config/roles';
import mockSettings from './config/settings';
import mockSlugs from './config/slugs';
import mockSubscribers from './config/subscribers';
import mockTags from './config/tags';
import mockUsers from './config/users';

// import {versionMismatchResponse} from 'utils';

export default function () {
    // this.urlPrefix = '';    // make this `http://localhost:8080`, for example, if your API is on a different server
    this.namespace = '/ghost/api/v0.1';    // make this `api`, for example, if your API is namespaced
    this.timing = 400;      // delay for each request, automatically set to 0 during testing

    // Mock endpoints here to override real API requests during development
    // this.put('/posts/:id/', versionMismatchResponse);
    // mockSubscribers(this);

    // keep this line, it allows all other API requests to hit the real server
    this.passthrough();

    // add any external domains to make sure those get passed through too
    this.passthrough('https://count.ghost.org/');
    this.passthrough('http://www.gravatar.com/**');
}

// Mock all endpoints here as there is no real API during testing
export function testConfig() {
    // this.urlPrefix = '';    // make this `http://localhost:8080`, for example, if your API is on a different server
    this.namespace = '/ghost/api/v0.1';    // make this `api`, for example, if your API is namespaced
    // this.timing = 400;      // delay for each request, automatically set to 0 during testing
    // this.logging = true;

    mockAuthentication(this);
    mockPosts(this);
    mockRoles(this);
    mockSettings(this);
    mockSlugs(this);
    mockSubscribers(this);
    mockTags(this);
    mockUsers(this);

    /* Notifications -------------------------------------------------------- */

    this.get('/notifications/', 'notifications');

    /* Apps - Slack Test Notification --------------------------------------------------------- */

    this.post('/slack/test', function () {
        return {};
    });

    /* Configuration -------------------------------------------------------- */

    this.get('/configuration/timezones/', function (db) {
        return {
            configuration: [{
                timezones: db.timezones
            }]
        };
    });

    /* External sites ------------------------------------------------------- */

    let downloadCount = 0;
    this.get('https://count.ghost.org/', function () {
        downloadCount++;
        return {
            count: downloadCount
        };
    });

    this.get('http://www.gravatar.com/avatar/:md5', function () {
        return '';
    }, 200);
}