Tell us about your experience integrating with CRM systems and payment systems, particularly with 1C and Bitrix.

In integration with CRM systems such as 1C and Bitrix, I worked on synchronizing data between the frontend and backend, ensuring the relevance of information about clients and orders.

For 1C, I usually used REST API or SOAP services, implementing data exchange via JSON or XML. For example, when placing an order on the website, the frontend sends data to 1C to create a sales document.

With Bitrix, the integration often involved working with their REST API to retrieve and update information about leads, contacts, and deals. I also implemented webhook processing for reactive data updates.

Example of a request to Bitrix API in JavaScript:

fetch('https://yourdomain.bitrix24.ru/rest/1/your_webhook/crm.lead.add.json', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({ fields: { TITLE: 'New Lead', NAME: 'Ivan', LAST_NAME: 'Ivanov' } })
})
.then(response => response.json())
.then(data => console.log(data));

Overall, proper error handling and security during data exchange with these systems are important.