Envía datos proporcionados por el usuario con Measurement Protocol

const { subtle } = require('crypto').webcrypto;

async function populateSensitiveUserData(value) {
  const encoder = new TextEncoder();
  // Convert a string value to UTF-8 encoded text.
  const valueUtf8 = encoder.encode(value);
  // Compute the hash (digest) using the SHA-256 algorithm.
  const hashSha256 = await subtle.digest('SHA-256', valueUtf8);
  // Convert buffer to byte array.
  const hashArray = Array.from(new Uint8Array(hashSha256));
  // Return a hex-encoded string.
  return hashArray.map(b => b.toString(16).padStart(2, "0")).join('');
};

// Test the encryption function by calling it.
async function main() {
  return await populateSensitiveUserData('<value>');
}

main()
  .then(v => console.log(v))
  .catch(err => console.error(err));

const measurementId = "MEASUREMENT_ID";
const apiSecret = "API_SECRET";

// Populate mock User Data using the `populateSensitiveUserData` function defined
// above.
const yourEmailSha256Variable = await populateSensitiveUserData('test@yourdomain.com');
const yourPhoneSha256Variable  = await populateSensitiveUserData('+15555555555');
const yourFirstNameSha256Variable  = await populateSensitiveUserData('john');
const yourLastNameSha256Variable  = await populateSensitiveUserData('doe');
const yourStreetAddressSha256Variable  = await populateSensitiveUserData('123 main street');

// Populate mock unencrypted user data.
const yourCityVariable = 'san francisco';
const yourRegionVariable = 'california';
const yourPostalCodeVariable = '94000';
const yourCountryVariable = 'US';

fetch(`https://www.google-analytics.com/mp/collect?measurement_id=${measurementId}&api_secret=${apiSecret}`, {
  method: "POST",
  headers: {
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    client_id: "CLIENT_ID",
    user_id: "USER_ID",
    events: [{
      name: "purchase"
    }],
    user_data: {
      sha256_email_address: yourEmailSha256Variable,
      sha256_phone_number: yourPhoneSha256Variable,
      address: {
        sha256_first_name: yourFirstNameSha256Variable,
        sha256_last_name: yourLastNameSha256Variable,
        sha256_street: yourStreetAddressSha256Variable,
        city: yourCityVariable,
        region: yourRegionVariable,
        postal_code: yourPostalCodeVariable,
        country: yourCountryVariable
      }
    }
  })
});

const measurementId = "MEASUREMENT_ID";
const apiSecret = "API_SECRET";

fetch(`https://www.google-analytics.com/mp/collect?measurement_id=${measurementId}&api_secret=${apiSecret}`, {
  method: "POST",
  headers: {
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    client_id: "CLIENT_ID",
    user_id: "USER_ID",
    events: [{
      name: "purchase"
    }],
    user_data: {
      sha256_email_address: [yourEmailSha256Variable1, yourEmailSha256Variable2],
      sha256_phone_number: [yourPhoneSha256Variable1, yourPhoneSha256Variable2],
      address: [{
        sha256_first_name: yourFirstNameSha256Variable1,
        sha256_last_name: yourLastNameSha256Variable1,
        sha256_street: yourStreetAddressSha256Variable1,
        city: yourCityVariable1,
        region: yourRegionVariable1,
        postal_code: yourPostalCodeVariable1,
        country: yourCountryVariable1
      },{
        sha256_first_name: yourFirstNameSha256Variable2,
        sha256_last_name: yourLastNameSha256Variable2,
        sha256_street: yourStreetAddressSha256Variable2,
        city: yourCityVariable2,
        region: yourRegionVariable2,
        postal_code: yourPostalCodeVariable2,
        country: yourCountryVariable2
      }]
    }
  })
});