mirror of https://github.com/nuxt/nuxt.git
71 lines
2.5 KiB
JavaScript
71 lines
2.5 KiB
JavaScript
const debug = require('debug')('nuxt:render')
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import Vue from 'vue'
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import { pick } from 'lodash'
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import { app, router<%= (store ? ', store' : '') %> } from './index'
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import { getMatchedComponents, getContext } from './utils'
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const isDev = process.env.NODE_ENV !== 'production'
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const _app = new Vue(app)
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// This exported function will be called by `bundleRenderer`.
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// This is where we perform data-prefetching to determine the
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// state of our application before actually rendering it.
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// Since data fetching is async, this function is expected to
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// return a Promise that resolves to the app instance.
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export default context => {
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// set router's location
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router.push(context.url)
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// Add route to the context
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context.route = router.currentRoute
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// Add meta infos
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context.meta = _app.$meta()
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// Add store to the context
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<%= (store ? 'context.store = store' : '') %>
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// Nuxt object
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context.nuxt = { data: [], error: null<%= (store ? ', state: null' : '') %> }
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<%= (isDev ? 'const s = isDev && Date.now()' : '') %>
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// Call data & fecth hooks on components matched by the route.
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let Components = getMatchedComponents(context.route)
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if (!Components.length) {
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context.nuxt.error = _app.error({ statusCode: 404, message: 'This page could not be found.', url: context.route.path })
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<%= (store ? 'context.nuxt.state = store.state' : '') %>
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return Promise.resolve(_app)
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}
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return Promise.all(Components.map((Component) => {
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let promises = []
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if (Component.data && typeof Component.data === 'function') {
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Component._data = Component.data
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var promise = Component.data(getContext(context))
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if (!(promise instanceof Promise)) promise = Promise.resolve(promise)
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promise.then((data) => {
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Component.data = () => data
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})
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promises.push(promise)
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} else {
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promises.push(null)
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}
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if (Component.fetch) {
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promises.push(Component.fetch(getContext(context)))
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}
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return Promise.all(promises)
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}))
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.then((res) => {
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<% if (isDev) { %>
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debug('Data fetch ' + context.req.url + ': ' + (Date.now() - s) + 'ms')
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<% } %>
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// datas are the first row of each
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context.nuxt.data = res.map((tab) => tab[0])
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<%= (store ? '// Add the state from the vuex store' : '') %>
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<%= (store ? 'context.nuxt.state = store.state' : '') %>
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return _app
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})
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.catch(function (error) {
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context.nuxt.error = _app.error(error)
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<%= (store ? 'context.nuxt.state = store.state' : '') %>
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return _app
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})
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}
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