react-static/src/static/fetchRoutes.js

A progressive static site generator for React

import chalk from 'chalk'
import exportSharedRouteData from './exportSharedRouteData'
import getRouteData from './getRouteData'
import { progress, time, timeEnd, poolAll } from '../utils'

export default (async function fetchRoutes(state) {
  const { config, routes } = state

  console.log('Fetching Route Data...')

  const dataProgress = progress(routes.length)
  time(chalk.green('[\u2713] Route Data Downloaded'))

  const sharedDataByHash = new Map()

  // Use a traditional for loop here for perf
  const downloadTasks = []
  for (let i = 0; i < routes.length; i++) {
    const route = routes[i]
    /* eslint-disable no-loop-func */
    downloadTasks.push(async () => {
      routes[i] = await getRouteData(route, state, sharedDataByHash)
      dataProgress.tick()
    })
  }

  state = {
    ...state,
    sharedDataByHash,
  }

  await poolAll(downloadTasks, Number(config.outputFileRate))

  timeEnd(chalk.green('[\u2713] Route Data Downloaded'))

  state = await exportSharedRouteData(state)

  return state
})