Configuration

The plugin accepts an options object configuring four content-type families. Each entry can be a config object (enabled with overrides), true (enabled with defaults), or false (disabled).

router.use(body({
    json: { limit: '1mb', strict: true },
    urlEncoded: { limit: '100kb' },
    raw: { limit: '5mb' },
    text: false,
}));

Option	Default	Default content-types
json	true	application/json
urlEncoded	true	application/x-www-form-urlencoded
raw	false	(opt-in for readRequestBodyBytes, readRequestBodyArrayBuffer, readRequestBodyBlob)
text	false	(opt-in for readRequestBodyText)

json

Parses application/json requests.

Property	Type	Default	Description
limit	number | string	none	Maximum size — bytes or '1mb' style
strict	boolean	true	Only accept arrays and objects (rejects bare values)
reviver	function	—	Forwarded to JSON.parse
type	string | string[]	'application/json'	Content-types this parser claims

router.use(body({
    json: { limit: '1mb', strict: true },
}));

urlEncoded

Parses application/x-www-form-urlencoded requests.

Property	Type	Default	Description
limit	number | string	none	Maximum body size
parameterLimit	number	1000	Maximum number of fields
type	string | string[]	'application/x-www-form-urlencoded'	Content-types this parser claims

raw

Configures the raw-byte readers. Off by default — opt in if you call readRequestBodyBytes, readRequestBodyArrayBuffer, or readRequestBodyBlob.

Property	Type	Default	Description
limit	number | string	none	Maximum body size

text

Configures the text reader.

Property	Type	Default	Description
limit	number | string	none	Maximum body size
defaultCharset	string	'utf-8'	Used when no charset is in the Content-Type header
type	string | string[]	'text/plain'	Content-types this parser claims