Developer guide 

Quick start 

1. composer require hrr/t3-datatable
2. Tag GridInterface implementations in your Services.yaml
3. Implement a grid class (table + columns)
4. Load the JS module in your backend module template
5. Call initDataTable() with your grid identifier

Core contract 

namespace HRR\T3Datatable\Contract;

interface GridInterface
{
    public function getIdentifier(): string;
    public function getTableName(): string;
    public function isAccessible(BackendUserAuthentication $backendUser): bool;
    public function build(GridDefinition $definition): void;
}

isAccessible() is mandatory. It must enforce the module, table, and record-level permissions appropriate to the grid; authentication alone does not authorize a user to read every registered grid.

AJAX endpoint 

Every grid shares one route, so you never have to register your own AJAX endpoint:

In JavaScript, use TYPO3.settings.ajaxUrls.t3datatable_data.

Response shape 

{
  "draw": 1,
  "recordsTotal": 150,
  "recordsFiltered": 42,
  "data": [
    {"uid": 1, "title": "Example"}
  ]
}

PHP classes 

Compatibility policy 

Only GridInterface, GridDefinition, ColumnDefinition, and the documented JavaScript exports are public API. Other PHP classes are internal implementation details. Minor releases add backwards-compatible functionality; deprecated public API remains until the next major release and is recorded in the changelog and upgrade guide.