Switch Directus role based on current role and User Agent

directus-extension-change-role.md

Change Role

Directus custom hook extension to change role of current user based on current role and User-Agent This allows to dynamically allow some permissions in on App and allow other permissions on another App or Directus App

index.js

export default function ({ init }, context) {
	init('middlewares.after', async function ({ app }) {
		app.use(async (req, res, next) => {
			const newAccountability = []

			if (req.accountability.role === 'bc5ff02e-3c01-4349-a4c9-7171f8fb5c5a') {
				if (req.accountability.userAgent.includes('My App')) {
					// On my app, has full permissions
					const roles = ['bc5ff02e-3c01-4349-a4c9-7171f8fb5c5a']
					newAccountability.push(['roles', roles])
					newAccountability.push(['role', roles[0]])
				} else {
					// By default, has App access but read only
					const roles = ['fde2fe5c-e7d2-4acf-85a2-f9b8f011c9e0']
					newAccountability.push(['roles', roles])
					newAccountability.push(['role', roles[0]])
					newAccountability.push(['app', true])
				}
			}

			if (newAccountability.length) {
				Object.assign(req.accountability, Object.fromEntries(newAccountability))
			}

			next();
		})
	})
}

package.json

{
  "name": "change-role",
  "description": "Change Directus role based on User Agent",
  "version": "1.0.0",
	"type": "module",
  "directus:extension": {
    "type": "hook",
    "path": "index.js",
    "source": "index.ts",
    "host": ">=11.0.0"
  }
}