Namesort ascending Description
Installer module: update Installer module functionality for updating existing code.
Installer module: install Installer module functionality for installing new code.
Installer module: file management Installer module file management functions.
Input validation Functions to validate user input.
Image toolkits Functions for image file manipulations.
HTTP handling Functions to properly handle HTTP responses.
Hooks Allow modules to interact with the Backdrop core.
Hook implementations for user-created content types Functions that implement hooks for user-created content types.
Formatting Functions to format numbers, strings, dates, etc.
Form generation Functions to enable the processing and display of HTML forms.
Form builder functions Functions that build an abstract representation of a HTML form.
File module public API functions These functions may be used to determine if and where a file is in use.
File interface Common file handling functions.
File displays API Functions to load and save information about file displays.
File access rights The file access system determines who can do what to which files.
Field Widget API Define Field API widget types.
Field Types API Define field types.
Field Storage API Implement a storage engine for Field API data.
Field Language API Handling of multilingual fields.
Field Info API Obtain information about Field API configuration.
Field Formatter API Define Field API formatter types.
Field CRUD API Create, update, and delete Field API fields, bundles, and instances.
Field Attach API Operate on Field API data attached to Backdrop entities.
Field API bulk data deletion Clean up after Field API bulk deletion operations.
Field API Attach custom data fields to Backdrop entities.
Examples These modules are well-documented API examples for a broad range of Backdrop core functionality.
Example: Vertical Tabs This example demonstrates the vertical tabs functionality.
Example: Token API This example demonstrates how to use the token API.
Example: Theming This example demonstrates the usage of Backdrop theming.
Example: Tablesort This example demonstrates how to create a sortable table display.
Example: Tabledrag This example demonstrates the usage of draggable table rows.
Example: Simpletest This example demonstrates how to implement simpletest tests.
Example: Render This example demonstrates how render arrays are arranged and how they can be altered. This alters blocks and the page to show the actual render array used to create each item.
Example: Queue This example demonstrates how to use the queue API.
Example: Pager This example demonstrates a page with content in a pager.
Example: Page This example demonstrates how a module can display a page at a given URL.
Example: Node type This example demonstrates how to programmatically define a content type.
Example: Node Hooks This example demonstrates how to use node hooks.
Example: Node Access This example demonstrates how to use the node access.
Example: Menu This example demonstrates how to use the menu API.
Example: JavaScript This example demonstrates how to use the Backdrop's built-in JavaScript.
Example: Image This example demonstrates the basic usage of the image API.
Example: Form API This example demonstrates how to use the form API.
Example: Filter This example demonstrates how filters are created.
Example: Files This example demonstrates how to use the file API and the stream wrappers.
Example: Field Types API This example demonstrates how to use the field types API.
Example: Field Permissions This example demonstrates how to use permissions on a Field API field.
Example: Entity This example demonstrates how to create an entity.
Example: Email This example demonstrates how to use the mail API.
Example: Database This example demonstrates how to use the database API.

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