---
lang: en
title: 'Connecting to Back-end Service Tutorials'
keywords:
  LoopBack 4.0, LoopBack 4, Node.js, TypeScript, Tutorial, Connector, Datasource
sidebar: lb4_sidebar
permalink: /doc/en/lb4/Connecting-to-back-end.html
---

{% include note.html content=" This is a placeholder page, the task of adding content is tracked by the following GitHub issue: loopback-next#6093 " %}

<!-- TODO

- Briefly introduce what is connectors and what connectors LB provides.
- List the connector tutorials we have in connector ref (MySQL, PostgreSQL, Oracle, and MongoDB)
- Add the link to connector ref

-->
