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Merged
blakeembrey merged 1 commit into from
Sep 10, 2026
Merged

Expose and performance optimize validation #75

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9 changes: 8 additions & 1 deletion README.md
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Expand Up @@ -28,7 +28,7 @@ const obj = contentType.parse("image/svg+xml; charset=utf-8");

Parse a `Content-Type` header. This will return an object with the following properties (examples are shown for the string `'image/svg+xml; charset=utf-8'`):

- `type`: The media type. Example: `'image/svg+xml'`.
- `type`: The media type (always lower case). Example: `'image/svg+xml'`.
- `parameters`: An object of the parameters in the media type (parameter name is always lower case). Example: `{charset: 'utf-8'}`.
- `index`: The index where parsing stopped. Example: `33`.

Expand Down Expand Up @@ -56,6 +56,13 @@ Format an object into a `Content-Type` header. This will return a string of the

Throws a `TypeError` if the object contains an invalid type or parameter names.

### Validation

This package exposes the validation functions used by `format`:

- `isTypeValid` Validates the MIME type against RFC 9110.
- `isTokenValid` Validates a token against RFC 9110 (used for the parameter name).

## License

[MIT](LICENSE)
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