Like Warner has said, take a database. Something like redis, in this case.
Or even a free hosted offering, if it is not mission critical. Or get a
firebase client. In any case, some external persistent way of storing and
retreiving this.
As an aside, it would probably be better to make checking and manipulating
this a middleware. Extract your actual "business logic" to a separate file,
and put your MY_TOGGLE check in a middleware. It enables you to easier
test, or e.g. later change the mechanism, or where you store the toggle or
similar.
Something like this:
const app = express();
const { getToggleState, flipToggleState } from './toggle-manager';
app.use('/requests', async function (req, res, next) {
const isToggleOn = await getToggleState();
if (isToggleOn) {
next();
} else {
res.status(403).end('Forbidden');
}
});
app.use('/requests', yourRegularHandler);
app.post('/stop', (req, res) => {
flipToggleState();
res.end('Ok');
});
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