export_citation

Instructions

Implementation Reference

• src/index.ts:374-391 (registration)

  Tool registration for 'export_citation' with input schema (pmid required, optional format with enum of apa/mla/chicago/bibtex/ris)

  {
    name: 'export_citation',
    description: 'Export citation in various formats (APA, MLA, Chicago, BibTeX, RIS)',
    inputSchema: {
      type: 'object',
      properties: {
        pmid: {
          type: 'string',
          description: 'PubMed ID'
        },
        format: {
          type: 'string',
          enum: ['apa', 'mla', 'chicago', 'bibtex', 'ris'],
          description: 'Citation format (default: apa)'
        }
      },
      required: ['pmid']
    }

• src/index.ts:919-941 (handler)

  Handler function for export_citation: validates PMID, fetches article details, and formats citation

  async function handleExportCitation(args: any) {
    const { pmid, format = 'apa' } = args;
  
    if (!isValidPMID(pmid)) {
      throw new Error(`Invalid PMID format: ${pmid}`);
    }
  
    const article = await eutilsClient.getArticleDetails(pmid);
    const citation = formatCitation(article, format as any);
  
    return {
      content: [
        {
          type: 'text',
          text: JSON.stringify({
            pmid,
            format,
            citation
          }, null, 2)
        }
      ]
    };
  }

• src/index.ts:479-480 (handler)

  Switch case dispatching to handleExportCitation

  case 'export_citation':
    return await handleExportCitation(args);

• src/api/utils.ts:285-315 (helper)

  formatCitation helper function that dispatches to individual formatters (APA, MLA, Chicago, BibTeX, RIS) based on style

  export function formatCitation(
    article: {
      authors: Array<{ lastName: string; foreName?: string; initials?: string }>;
      title: string;
      journal: string;
      publicationDate: string;
      volume?: string;
      issue?: string;
      pages?: string;
      doi?: string;
    },
    style: 'apa' | 'mla' | 'chicago' | 'bibtex' | 'ris'
  ): string {
    const year = article.publicationDate.split('-')[0];
    const authorList = article.authors.slice(0, 20); // Limit to first 20 authors
  
    switch (style) {
      case 'apa':
        return formatAPACitation(article, authorList, year);
      case 'mla':
        return formatMLACitation(article, authorList, year);
      case 'chicago':
        return formatChicagoCitation(article, authorList, year);
      case 'bibtex':
        return formatBibTeXCitation(article, authorList, year);
      case 'ris':
        return formatRISCitation(article, authorList, year);
      default:
        return formatAPACitation(article, authorList, year);
    }
  }

• src/api/utils.ts:417-439 (helper)

  RIS citation formatter helper (one of the five format styles supported)

  function formatRISCitation(article: any, authors: any[], year: string): string {
    let ris = 'TY  - JOUR\n';
  
    authors.forEach(a => {
      ris += `AU  - ${a.lastName}, ${a.foreName || a.initials}\n`;
    });
  
    ris += `TI  - ${article.title}\n`;
    ris += `JO  - ${article.journal}\n`;
    ris += `PY  - ${year}\n`;
  
    if (article.volume) ris += `VL  - ${article.volume}\n`;
    if (article.issue) ris += `IS  - ${article.issue}\n`;
    if (article.pages) ris += `SP  - ${article.pages.split('-')[0]}\n`;
    if (article.pages && article.pages.includes('-')) {
      ris += `EP  - ${article.pages.split('-')[1]}\n`;
    }
    if (article.doi) ris += `DO  - ${article.doi}\n`;
  
    ris += 'ER  - \n';
  
    return ris;
  }