@firebase/remote-config

Fetch and activate values

This feature allows developers to fetch remote configuration parameters and activate them in the app. The code sample demonstrates fetching and activating remote config values, then retrieving a specific parameter as a string.

const { getRemoteConfig, fetchAndActivate } = require('@firebase/remote-config');

async function fetchConfig() {
  const remoteConfig = getRemoteConfig();
  await fetchAndActivate(remoteConfig);
  const value = remoteConfig.getString('welcome_message');
  console.log('Welcome message:', value);
}

Set default values

This feature enables setting default values for configuration parameters within the app code. The code sample shows how to set a default value for a 'welcome_message' parameter, which will be used if no value is fetched from the server or while waiting for updated values.

const { getRemoteConfig, setDefaults } = require('@firebase/remote-config');

function setDefaultConfig() {
  const remoteConfig = getRemoteConfig();
  setDefaults(remoteConfig, {
    'welcome_message': 'Hello, default!'
  });
}