TypeError: Cannot read properties of undefined (reading 'primary') with Directus v11.12.2

[lucashamon]

Hello !

The extension throws a TypeError: Cannot read properties of undefined (reading 'primary') error when running on Directus version 11.12.0.

Steps to Reproduce

• Use Directus v11.12.0.
• Install directus-extension-prometheus (version 1.4.0 or latest).
• Start Directus.
• Check the application logs.

Actual Log Error

{
    "severity": "DEBUG",
    "err": {
        "type": "TypeError",
        "message": "Cannot read properties of undefined (reading 'primary')",
        "stack": "TypeError: Cannot read properties of undefined (reading 'primary')\n    at MetaService.filterCount (file:///directus/node_modules/.pnpm/@directus+api@file+api_@types+node@24.2.0_jiti@2.5.1_typescript@5.8.3/node_modules/@directus/api/dist/services/meta.js:36:68)\n    at MetaService.totalCount (file:///directus/node_modules/.pnpm/@directus+api@file+api_@types+node@24.2.0_jiti@2.5.1_typescript@5.8.3/node_modules/@directus/api/dist/services/meta.js:33:21)\n    at /directus/node_modules/.pnpm/directus-extension-prometheus@1.4.0/node_modules/directus-extension-prometheus/src/index.js:102:54\n    (...)"
    }
}

Environment

• Directus Version: v11.12.0
• Extension Version: v1.4.0

[lucashamon]

Looks like the bug is happening because the extension is trying to count items in a collection that doesn't have a recognized primary key (primary).

Directus needs a primary key to run count operations via the MetaService (I guess).