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Version: 1.9.0

Adding plugins


Plugins are a way of extending the functionality of Mocks Server.

Some things that can be made with a plugin are:

  • Load "behaviors" or "fixtures".
  • Listen to Mocks Server events and act in consequence.
  • Add custom express routers to the server.
  • Add new options, accessible even through command line arguments.
  • Change settings while the server is running.
  • Add new formats of defining "fixtures". (Using "custom fixtures handlers")

Find plugins

Use the "mocks-server-plugin" tag to search Mocks Server plugins in NPM.

Add plugins

Configuration file

Use the configuration file for adding plugins:

// mocks-server.config.js
const FooPlugin = require("mocks-server-plugin-foo");

module.exports = {
addPlugins: [FooPlugin],
options: {
behavior: "foo-behavior"

Note the usage of the addPlugins property, not the plugins one. This is because the main distribution of the Mocks Server (@mocks-server/main) already includes some plugins to improve the user experience. If you use plugins instead of addPlugins, you will remove those ones added by default.


If you are using the @mocks-server/core package to initialize the mocks-server programmatically, you can define the plugins to use as described in the programmatic usage chapter.