# Comunication between Back-End Gateway and Front-End Gateway

**URL:** <https://forum.inductiveautomation.com/t/comunication-between-back-end-gateway-and-front-end-gateway/109322>\
**Category:** Ignition\
**Tags:** perspective, ignition81\
**Created:** [August 4, 2025, 2:18pm UTC](https://forum.inductiveautomation.com/t/comunication-between-back-end-gateway-and-front-end-gateway/109322 "2025-08-04T14:18:02Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![danielps1818](https://avatars.discourse-cdn.com/v4/letter/d/ecae2f/32.png) [@danielps1818](https://forum.inductiveautomation.com/u/danielps1818)\
**Post date:** [August 4, 2025, 2:18pm UTC](https://forum.inductiveautomation.com/t/comunication-between-back-end-gateway-and-front-end-gateway/109322/1 "2025-08-04T14:18:02Z")

</div>

We have a large project coming...

We were planning on doing a back-end gateway and a front-end gateway.  
How would comunicatte the front-end gateway.

I mean, if for example in perspective you have a button that start an operation that saves something to a db.

Would be something like `front-end > back-end > DB` and then: `DB > front (reading only)`. However, we are not sure on how to do that. We were thinking about webdev or passing it throw tags (using gateway network).

What do you think?

Thx in advance!

---

<div class="post-metadata">

**Author:** ![ryan.white](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ryan.white/32/73193_2.png) [@ryan.white](https://forum.inductiveautomation.com/u/ryan.white)\
**Post date:** [August 4, 2025, 3:30pm UTC](https://forum.inductiveautomation.com/t/comunication-between-back-end-gateway-and-front-end-gateway/109322/2 "2025-08-04T15:30:30Z")

</div>

If your gateways are connected via the gateway area network (GAN) you can script a request from front-end to back-end using messages via [`system.util.sendMessage`](https://www.docs.inductiveautomation.com/docs/8.1/appendix/scripting-functions/system-util/system-util-sendMessage). If you need a response back you can use [`system.util.sendRequest`](https://www.docs.inductiveautomation.com/docs/8.1/appendix/scripting-functions/system-util/system-util-sendRequest) instead.

You would need a message handler on the backend gateway configured to handle the requests sent by the front end gateway. Neither of these would require the Webdev module.