179 lines
3.8 KiB
Markdown
179 lines
3.8 KiB
Markdown
# @vue/server-renderer
|
|
|
|
**Note: as of 3.2.13+, this package is included as a dependency of the main `vue` package and can be accessed as `vue/server-renderer`. This means you no longer need to explicitly install this package and ensure its version match that of `vue`'s. Just use the `vue/server-renderer` deep import instead.**
|
|
|
|
## Basic API
|
|
|
|
### `renderToString`
|
|
|
|
**Signature**
|
|
|
|
```ts
|
|
function renderToString(
|
|
input: App | VNode,
|
|
context?: SSRContext
|
|
): Promise<string>
|
|
```
|
|
|
|
**Usage**
|
|
|
|
```js
|
|
const { createSSRApp } = require('vue')
|
|
const { renderToString } = require('@vue/server-renderer')
|
|
|
|
const app = createSSRApp({
|
|
data: () => ({ msg: 'hello' }),
|
|
template: `<div>{{ msg }}</div>`
|
|
})
|
|
|
|
;(async () => {
|
|
const html = await renderToString(app)
|
|
console.log(html)
|
|
})()
|
|
```
|
|
|
|
### Handling Teleports
|
|
|
|
If the rendered app contains teleports, the teleported content will not be part of the rendered string. Instead, they are exposed under the `teleports` property of the ssr context object:
|
|
|
|
```js
|
|
const ctx = {}
|
|
const html = await renderToString(app, ctx)
|
|
|
|
console.log(ctx.teleports) // { '#teleported': 'teleported content' }
|
|
```
|
|
|
|
## Streaming API
|
|
|
|
### `renderToNodeStream`
|
|
|
|
Renders input as a [Node.js Readable stream](https://nodejs.org/api/stream.html#stream_class_stream_readable).
|
|
|
|
**Signature**
|
|
|
|
```ts
|
|
function renderToNodeStream(input: App | VNode, context?: SSRContext): Readable
|
|
```
|
|
|
|
**Usage**
|
|
|
|
```js
|
|
// inside a Node.js http handler
|
|
renderToNodeStream(app).pipe(res)
|
|
```
|
|
|
|
**Note:** This method is not supported in the ESM build of `@vue/server-renderer`, which is decoupled from Node.js environments. Use `pipeToNodeWritable` instead.
|
|
|
|
### `pipeToNodeWritable`
|
|
|
|
Render and pipe to an existing [Node.js Writable stream](https://nodejs.org/api/stream.html#stream_writable_streams) instance.
|
|
|
|
**Signature**
|
|
|
|
```ts
|
|
function pipeToNodeWritable(
|
|
input: App | VNode,
|
|
context: SSRContext = {},
|
|
writable: Writable
|
|
): void
|
|
```
|
|
|
|
**Usage**
|
|
|
|
```js
|
|
// inside a Node.js http handler
|
|
pipeToNodeWritable(app, {}, res)
|
|
```
|
|
|
|
### `renderToWebStream`
|
|
|
|
Renders input as a [Web ReadableStream](https://developer.mozilla.org/en-US/docs/Web/API/Streams_API).
|
|
|
|
**Signature**
|
|
|
|
```ts
|
|
function renderToWebStream(
|
|
input: App | VNode,
|
|
context?: SSRContext
|
|
): ReadableStream
|
|
```
|
|
|
|
**Usage**
|
|
|
|
```js
|
|
// inside an environment with ReadableStream support
|
|
return new Response(renderToWebStream(app))
|
|
```
|
|
|
|
**Note:** in environments that do not expose `ReadableStream` constructor in the global scope, `pipeToWebWritable` should be used instead.
|
|
|
|
### `pipeToWebWritable`
|
|
|
|
Render and pipe to an existing [Web WritableStream](https://developer.mozilla.org/en-US/docs/Web/API/WritableStream) instance.
|
|
|
|
**Signature**
|
|
|
|
```ts
|
|
function pipeToWebWritable(
|
|
input: App | VNode,
|
|
context: SSRContext = {},
|
|
writable: WritableStream
|
|
): void
|
|
```
|
|
|
|
**Usage**
|
|
|
|
This is typically used in combination with [`TransformStream`](https://developer.mozilla.org/en-US/docs/Web/API/TransformStream):
|
|
|
|
```js
|
|
// TransformStream is available in environments such as CloudFlare workers.
|
|
// in Node.js, TransformStream needs to be explicitly imported from 'stream/web'
|
|
const { readable, writable } = new TransformStream()
|
|
pipeToWebWritable(app, {}, writable)
|
|
|
|
return new Response(readable)
|
|
```
|
|
|
|
### `renderToSimpleStream`
|
|
|
|
Renders input in streaming mode using a simple readable interface.
|
|
|
|
**Signature**
|
|
|
|
```ts
|
|
function renderToSimpleStream(
|
|
input: App | VNode,
|
|
context: SSRContext,
|
|
options: SimpleReadable
|
|
): SimpleReadable
|
|
|
|
interface SimpleReadable {
|
|
push(content: string | null): void
|
|
destroy(err: any): void
|
|
}
|
|
```
|
|
|
|
**Usage**
|
|
|
|
```js
|
|
let res = ''
|
|
|
|
renderToSimpleStream(
|
|
app,
|
|
{},
|
|
{
|
|
push(chunk) {
|
|
if (chunk === null) {
|
|
// done
|
|
console(`render complete: ${res}`)
|
|
} else {
|
|
res += chunk
|
|
}
|
|
},
|
|
destroy(err) {
|
|
// error encountered
|
|
}
|
|
}
|
|
)
|
|
```
|