index.js

const fs = require("fs");
const { inspect } = require("util");
const yaml = require("js-yaml");
const core = require("@actions/core");
const { request } = require("graphql-request");

function getAllInputs() {
  return Object.entries(process.env).reduce((result, [key, value]) => {
    if (!/^INPUT_/.test(key)) return result;

    const inputName = key.replace(/^INPUT_/, "").toLowerCase();

    // The js-yaml parser cannot handle the syntax of a multi-line GraphQL query very well,
    // so we just leave it as-is.
    // https://github.com/octokit/graphql-action/issues/21
    if (inputName === `query`) {
      result.query = value;
      return result;
    }

    if (inputName === "variables") {
      result.variables = JSON.parse(value);
      return result;
    }

    if (inputName === "headers") {
      result.headers = JSON.parse(value);
      return result;
    }

    result[inputName] = yaml.load(value);
    return result;
  }, {});
}

async function main() {
  try {
    const { query, api_endpoint, variables, headers, write_to } =
      getAllInputs();

    core.info(query);

    const time = Date.now();
    const result = await request(api_endpoint, query, variables, headers);

    core.info(`< 200 ${Date.now() - time}ms`);

    const data = JSON.stringify(result, null, 2);

    core.info(`result: \n${data}`);

    if (write_to) {
      fs.writeFileSync(write_to, data);
    }

    core.setOutput("data", data);
  } catch (error) {
    core.debug(inspect(error));
    core.setFailed(error.message);
  }
}

main();