ihub-framework-js/index.js

Legacy version of iHub Framework written in Javascript

// Loads all environment variables from .env file to process.env
require('./libs/environment');

// Bootup function
const bootup = () => (new Promise(async (resolve, reject) => {
  /* eslint-disable global-require */
  try {
    const EventEmitter = require('events');
    class CustomEmitter extends EventEmitter {}
    const events = new CustomEmitter();

    // Feature object, it's going to be used later to start other modules and the core of the system
    const feature = {
      apm: process.env.FT_APM_ENABLED === 'true' || false,
      logger: require('./logger'),
      request: require('./request')(),
      /* eslint-disable no-new-require */
      /* eslint-disable new-cap */
      events,
    };

    process.on('uncaughtException', (error) => {
      // Logs the uncaught error for futher treatment
      /* eslint-disable no-console */
      feature.logger.error('uncaughtException', {
        errorMessage: error.message,
        error: (typeof error === 'object' && !Array.isArray(error)) ? JSON.stringify(error) : String(error),
      });
      console.error('There was an uncaught error', error);
      setTimeout(() => {
        process.exit(1);
      }, 5000);
    });

    /* Debug */
    feature.logger.debug('IHUB Framework is starting');

    // Loads the APM if enabled
    if (feature.apm) {
      feature.apm = require('elastic-apm-node').start({
        serviceName: process.env.NODE_ENV === 'production' ? process.env.PROJECT_NAMESPACE : `${process.env.PROJECT_NAMESPACE}-${process.env.NODE_ENV || 'development'}`,
        serverUrl: `${process.env.ELASTICSEARCH_APM_HOST}:${process.env.ELASTICSEARCH_APM_PORT}`,
      });
    }

    /* Database */
    feature.database = process.env.FT_DATABASE_ENABLED === 'true'
      ? await require('./database/connect') : false;

    /* Server */
    feature.server = process.env.FT_SERVER_ENABLED === 'true'
      ? await require('./server')() : false;

    /* Tasks */
    feature.tasks = process.env.FT_TASKS_ENABLED === 'true'
      ? await require('./tasks')(feature.apm) : false;

    /* Kafka */
    feature.kafka = process.env.FT_KAFKA_ENABLED === 'true'
      ? await require('./kafka')() : false;

    /* Routines */
    feature.routines = process.env.FT_ROUTINES_ENABLED === 'true'
      ? await require('./routines')(feature.apm) : false;

    /* Core */
    // Init the core module and passed all the features to it
    require('./core').init(feature);

    /* Plugins */
    feature.plugins = await require('./loader/plugins');

    // TODO: Remove this|| Re Init the core module and passed all the features to it
    require('./core').init(feature);

    /* Global Models */
    await require('./database/models');

    /* Components */
    // Loads the components and its features based on the services enabled
    await require('./loader/components')(feature.database, feature.tasks, feature.routines, feature.server, feature.kafka);

    /* Debug */
    feature.events.emit('ihub-framework:started');
    feature.logger.debug('IHUB Framework started');

    resolve();
  } catch (error) {
    /* eslint-disable no-console */
    console.log(error);
    process.exit(1);
    reject(error);
  }
}));

// Check it it's being required or called
if (require.main === module) {
  // Bootup the system
  bootup();
} else {
  // Exports the system
  module.exports = bootup;
}