mathpix.js

/* 1. Name of your function (must be unique) */
export const name = "pdf_url2markdown";

/* 2. Description of function, used to describe what it does to an LLM */
export const description = "Converts pdf links to markdown";

/**
* 3. A JSON Schema defining the function's parameters. See:
*
* - https://platform.openai.com/docs/guides/gpt/function-calling
* - https://json-schema.org/learn/getting-started-step-by-step
*/
export const parameters = {
    type: "object",
    properties: {
        pdf_url: {
            type: "string",
            description: "Url to a pdf that needs conversion",
        }
    },
    required: ["pdf_url"],
};

export default async function (value) {
  const url = value.pdf_url;
  if (!window.MATHPIX_APP_ID) {
    window.MATHPIX_APP_ID = prompt('Please enter your Mathpix App ID');
  }
  if (!window.MATHPIX_OCR_API_KEY) {
    window.MATHPIX_OCR_API_KEY = prompt('Please enter your Mathpix OCR API Key');
  }

  const headers = {
    'app_id': window.MATHPIX_APP_ID,
    'app_key': window.MATHPIX_OCR_API_KEY,
    'Content-Type': 'application/json'
  };

  const body = JSON.stringify({
    url: url,
    conversion_formats: { md: true }
  });

  const response = await fetch('https://api.mathpix.com/v3/pdf', {
    method: 'POST',
    headers: headers,
    body: body
  });

  const data = await response.json();
  const pdfId = data.pdf_id;

  let status = '';
  do {
    const statusResponse = await fetch(`https://api.mathpix.com/v3/pdf/${pdfId}`, {
      method: 'GET',
      headers: headers
    });
    const statusData = await statusResponse.json();
    status = statusData.status;
    if (status !== 'completed') {
      await new Promise(resolve => setTimeout(resolve, 1000));
    }
  } while (status !== 'completed');

  const mdResponse = await fetch(`https://api.mathpix.com/v3/pdf/${pdfId}.md`, {
    method: 'GET',
    headers: headers
  });

  const mdData = await mdResponse.text();
  return mdData;
}