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Modules in Apostrophe

Every Apostrophe site is made up of modules. You can browse the complete list at left.

Overview

Each module provides a particular feature, often including both front and back end code, as well as templates and stylesheets. For instance, the apostrophe-assets module provides core services relating to assets like stylesheets.

Modules are implemented as moog types, which provide a simple and clean way to write them in an object-oriented style while keeping async programming convenient and providing easy subclassing and overriding.

For convenience, the apostrophe npm module contains all of the "core" Apostrophe modules that are necessary for a functioning website.

Some of these, like apostrophe-docs, are initialized every time Apostrophe starts up; you can see that list on github. Those modules are initialized first, followed by those you configure in app.js, in the order you configure them.

Others, like apostrophe-pieces and apostrophe-widgets, are "abstract base classes" you can extend to create new modules that provide content types.

apostrophe-module is the base class of all modules; it provides features that are convenient in almost any module, like rendering a template from its views folder, or pushing assets from its public folder.

Modules can also be installed via npm, and multiple Apostrophe modules can be shipped as a single npm module via moog bundles.

Overriding, configuring and extending modules at "project level"

Any options you provide for a module via the modules property in app.js override the default configuration for a module, as seen in the tutorials. And any configuration provided via the modules property in data/local.js overrides that, allowing for server-specific settings like API keys.

You can also provide your own templates in the lib/modules/module-name/views folder of your project (not in node_modules) to override the templates of module-name, and provide your own code in lib/modules/module-name/index.js to override methods and add functionality. If your project-level lib/modules folder has a module by the same name as a core or npm module, any code you provide automatically subclasses and improves that module.

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