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next.js/server/render.js
Naoyuki Kanezawa c7ba914f52 Handle runtime errors (#268)
* display runtime errors by error-debug

* server: fix status

* render Error component on client error

* server: render runtime errors of error template

* server: handle errors of error template on render404

* server: add a comment

* server: refactor renderJSON

* recover from runtime errors

* _error: check if xhr exists

* _error: improve client error

* _error: improve error message
2016-11-24 23:03:16 +09:00

87 lines
2.2 KiB
JavaScript

import { join } from 'path'
import { parse } from 'url'
import { createElement } from 'react'
import { renderToString, renderToStaticMarkup } from 'react-dom/server'
import { renderStatic } from 'glamor/server'
import requireModule from './require'
import read from './read'
import getConfig from './config'
import Router from '../lib/router'
import Document from '../lib/document'
import Head, {defaultHead} from '../lib/head'
import App from '../lib/app'
export async function render (url, ctx = {}, {
dir = process.cwd(),
dev = false,
staticMarkup = false
} = {}) {
const path = getPath(url)
const mod = await requireModule(join(dir, '.next', 'dist', 'pages', path))
const Component = mod.default || mod
const [
props,
component,
errorComponent
] = await Promise.all([
Component.getInitialProps ? Component.getInitialProps(ctx) : {},
read(join(dir, '.next', 'bundles', 'pages', path)),
read(join(dir, '.next', 'bundles', 'pages', dev ? '_error-debug' : '_error'))
])
const { html, css, ids } = renderStatic(() => {
const app = createElement(App, {
Component,
props,
router: new Router(ctx.req ? ctx.req.url : url)
})
return (staticMarkup ? renderToStaticMarkup : renderToString)(app)
})
const head = Head.rewind() || defaultHead()
const config = await getConfig(dir)
const doc = createElement(Document, {
html,
head,
css,
data: {
component,
errorComponent,
props,
ids: ids,
err: (ctx.err && dev) ? errorToJSON(ctx.err) : null
},
dev,
staticMarkup,
cdn: config.cdn
})
return '<!DOCTYPE html>' + renderToStaticMarkup(doc)
}
export async function renderJSON (url, { dir = process.cwd() } = {}) {
const path = getPath(url)
const component = await read(join(dir, '.next', 'bundles', 'pages', path))
return { component }
}
export function errorToJSON (err) {
const { name, message, stack } = err
const json = { name, message, stack }
if (name === 'ModuleBuildError') {
// webpack compilation error
const { module: { rawRequest } } = err
json.module = { rawRequest }
}
return json
}
function getPath (url) {
return parse(url || '/').pathname.replace(/\.json$/, '')
}