You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
2.9 KiB
87 lines
2.9 KiB
3 years ago
|
# fastify-formbody
|
||
|
|
|
||
|
|
|
||
|
|
[](https://www.npmjs.com/package/fastify-formbody)
|
||
|
|
[](https://www.npmjs.com/package/fastify-formbody)
|
||
|
|
[](https://standardjs.com)
|
||
|
|
[](https://codecov.io/gh/fastify/fastify-formbody)
|
||
|
|
[](https://snyk.io/test/github/fastify/fastify-formbody)
|
||
|
|
|
||
|
|
A simple plugin for [Fastify][fastify] that adds a content type parser for
|
||
|
|
the content type `application/x-www-form-urlencoded`.
|
||
|
|
|
||
|
|
[fastify]: https://www.fastify.io/
|
||
|
|
|
||
|
|
This branch targets Fastify v3. Please refer to [this branch](https://github.com/fastify/fastify-formbody/tree/3.x) and related versions for Fastify `^2.0.0` compatibility.
|
||
|
|
|
||
|
|
## Example
|
||
|
|
|
||
|
|
Given the following code:
|
||
|
|
|
||
|
|
```js
|
||
|
|
const fastify = require('fastify')()
|
||
|
|
|
||
|
|
fastify.register(require('fastify-formbody'))
|
||
|
|
|
||
|
|
fastify.post('/', (req, reply) => {
|
||
|
|
reply.send(req.body)
|
||
|
|
})
|
||
|
|
|
||
|
|
fastify.listen(8000, (err) => {
|
||
|
|
if (err) throw err
|
||
|
|
})
|
||
|
|
```
|
||
|
|
|
||
|
|
And a `POST` body of:
|
||
|
|
|
||
|
|
```html
|
||
|
|
foo=foo&bar=bar&answer=42
|
||
|
|
```
|
||
|
|
|
||
|
|
The sent reply would be the object:
|
||
|
|
|
||
|
|
```js
|
||
|
|
{
|
||
|
|
foo: 'foo',
|
||
|
|
bar: 'bar',
|
||
|
|
answer: 42
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
## Options
|
||
|
|
|
||
|
|
The plugin accepts an options object with the following properties:
|
||
|
|
|
||
|
|
+ `bodyLimit`: The maximum amount of bytes to process
|
||
|
|
before returning an error. If the limit is exceeded, a `500` error will be
|
||
|
|
returned immediately. When set to `undefined` the limit will be set to whatever
|
||
|
|
is configured on the parent Fastify instance. The default value is
|
||
|
|
whatever is configured in
|
||
|
|
[fastify](https://github.com/fastify/fastify/blob/master/docs/Factory.md#bodylimit)
|
||
|
|
(`1048576` by default).
|
||
|
|
+ `parser`: The default parser used is the querystring.parse built-in. You can change this default by passing a parser function e.g. `fastify.register(require('fastify-formbody'), { parser: str => myParser(str) })`
|
||
|
|
|
||
|
|
## Upgrading from 4.x
|
||
|
|
|
||
|
|
Previously, the external [qs lib](https://github.com/ljharb/qs) was used that did things like parse nested objects. For example:
|
||
|
|
|
||
|
|
- ***Input:*** `foo[one]=foo&foo[two]=bar`
|
||
|
|
- ***Parsed:*** `{ foo: { one: 'foo', two: 'bar' } }`
|
||
|
|
|
||
|
|
The way this is handled now using the built-in querystring.parse:
|
||
|
|
|
||
|
|
- ***Input:*** `foo[one]=foo&foo[two]=bar`
|
||
|
|
- ***Parsed:*** `{ 'foo[one]': 'foo', 'foo[two]': 'bar' }`
|
||
|
|
|
||
|
|
If you need nested parsing, you must configure it manually by installing the qs lib (`npm i qs`), and then configure an optional parser:
|
||
|
|
|
||
|
|
```js
|
||
|
|
const fastify = require('fastify')()
|
||
|
|
const qs = require('qs')
|
||
|
|
fastify.register(require('fastify-formbody'), { parser: str => qs.parse(str) })
|
||
|
|
```
|
||
|
|
|
||
|
|
## License
|
||
|
|
|
||
|
|
Licensed under [MIT](./LICENSE)
|