Convert a DOI or DOI URL to JSON via CrossRef API

doi2json.ts

/**
 * Gets JSON citation data from the CrossRef API for a DOI or DOI URL
 * @param doi A DOI or DOI URL
 */
export async function doi2json(doiOrUrl: string) {
  // Extract the DOI from the URL
  const doi = doiOrUrl.replace('https://doi.org/', '');

  // Fetch data from the CrossRef API
  const response = await fetch(`https://api.crossref.org/works/${doi}`);
  if (!response.ok) {
    throw new Error(`HTTP error! status: ${response.status}`);
  }
  const data = await response.json();
  return data;
}