HubSpot: Find Contact

 
export default async function main(args) {
  // Validate input variables from args - find the "validateInputs" function below
  const invalidFieldTrace = validateInputs(args)

  if (invalidFieldTrace) return invalidFieldTrace;

  // Extract input variables from args (destructuring)
  const {
    userEmail,
    hubspotApiToken,
  } = args.inputVars;

  /**
   * Build the payload for batch reading contacts in HubSpot
   *
   * Check HubSpot documentation to learn what properties are available
   *
   * - https://developers.hubspot.com/docs/api/crm/contacts
   */
  const payload = {
    "properties": [
      "email",
      "firstname",
      "lastname",
      "lifecyclestage",
    ],
    "idProperty": "email",
    "inputs": [
      {
        "id": userEmail
      }
    ]
  }

  /**
   * Define the URL for HubSpot REST operations
   */
  const endpointUrl = `https://api.hubapi.com/crm/v3/objects/contacts/batch/read`;

  /**
   * Configure the fetch request
   *
   * Get your HubSpot API Token from the settings in Integration > Private apps
   *
   * https://developers.hubspot.com/docs/api/private-apps
   */
  const config = {
    method: 'POST',
    headers: {
      'Authorization': `Bearer ${hubspotApiToken}`,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify(payload),
  };


  try {
    // Make the API call
    const response = await fetch(endpointUrl, config);

    // Check if the response status is OK
    if (!response.ok) {
      throw new Error(`HTTP status code ${response.status}`);
    }

    // Extract the JSON body from the response
    const responseBody = response.json;

    // Validate the responseBody structure as expected
    if (!responseBody || typeof responseBody !== 'object') {
      throw new Error("Invalid or missing response body");
    }

    // Extract data from the response
    const exist = !!responseBody.results.length
    const contact = exist ? responseBody.results[0] : null;
    const contactFirstName = contact?.properties?.firstname
    const contactId = contact?.id

    // Create the success return trace with extracted data
    return {
      outputVars: {
        contact: JSON.stringify(contact),
        contactFirstName,
        contactId,
        exist,
      },
      next: {
        path: 'success'
      },
      trace: [
        { 
          type: "debug", 
          payload: {
            message: 'HubSpot API call successful'
          }
        },
        { 
          type: "debug", 
          payload: {
            message: `Contact exist: ${exist}`
          }
        },
        { 
          type: "debug", 
          payload: {
            message: JSON.stringify(contact)
          }
        },
      ]
    };
  } catch (error) {
    return {
      next: {
        path: 'error'
      },
      trace: [{
        type: "debug",
        payload: {
          message: `HubSpot API call error: ${error.message}`
        }
      }]
    };
  }

  /**
   * Here we validate all the inputs of the Voiceflow function
   *
   * The function can be used in the first lines of the code
   * because of a Javascript concept called hoisting
   *
   * Read more: https://developer.mozilla.org/en-US/docs/Glossary/Hoisting
   */
  function validateInputs(args) {
    // Extract input variables from args (destructuring)
    const {
      userEmail,
      hubspotApiToken,
    } = args.inputVars;
  
    // Validate that userEmail variable is provided
    if (!userEmail) {
      return {
        next: { path: 'error' },
        trace: [{ type: "debug", payload: { message: "Missing required input variable: userEmail" } }]
      };
    }
  
    // Validate that hubspotApiToken variable is provided
    if (!hubspotApiToken) {
      return {
        next: { path: 'error' },
        trace: [{ type: "debug", payload: { message: "Missing required input variable: hubspotApiToken" } }]
      };
    }

    return null
  }
}