astro/dist/assets/utils/queryParams.js

Astro is a modern site builder with web best practices, performance, and DX front-of-mind.

/**
* Extracts the original image query parameters (width, height, format) from the given `URLSearchParams` object
* and returns them as an object. If any of the required parameters are missing or invalid, the function returns undefined.
*
* The `width` and `height` are parsed to integer values.
*
* @param {URLSearchParams} params - The `URLSearchParams` object containing the query parameters.
* @return {Pick<ImageMetadata, 'width' | 'height' | 'format'> | undefined} An object with the original image parameters (width, height, format) or undefined if any parameter is missing.
*/
export function getOrigQueryParams(params) {
	const width = params.get("origWidth");
	const height = params.get("origHeight");
	const format = params.get("origFormat");
	if (!width || !height || !format) {
		return undefined;
	}
	return {
		width: Number.parseInt(width),
		height: Number.parseInt(height),
		format
	};
}