How can I persist data and reload it between each render ?

Snowbunny

I need to store a token in memory that can be reused by each render. I tried something like this with a custom module but it's being reset on every render.

const state = require('src/state.js');

async function beforeRender(req, res) {
  // should be not null on the second render
  if(!state.getToken()){
       const token = await login();
       state.setToken(token)
  }
  // use token...
}

admin

By default, jsreport assures the required cache is cleared after every request, to ensure one request is isolated and can't break the others. In other words, you get always a new state when calling require. This can be disabled using config.

"sandbox": {
    "isolateModules": false
  }

With this, you get a cached module when doing require. However the require cache is unique for every worker thread, thus depends also on config workers.numberOfWorkers.

The other option is to write the token to a file, database...

Snowbunny

Thanks that worked.