# Webhook in a Public App

**URL:** <https://community.glideapps.com/t/webhook-in-a-public-app/22071>\
**Category:** Report a Bug\
**Created:** [February 1, 2021, 3:49pm UTC](https://community.glideapps.com/t/webhook-in-a-public-app/22071 "2021-02-01T15:49:47Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![Darren\_Murphy](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/darren_murphy/32/47326_2.png) [@Darren\_Murphy](https://community.glideapps.com/u/Darren_Murphy)\
**Post date:** [February 12, 2021, 12:53pm UTC](https://community.glideapps.com/t/webhook-in-a-public-app/22071/12 "2021-02-12T12:53:42Z")

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All you need to do is create a trigger script to “watch” a cell/range in your spreadsheet, and then use Glide to alter a value in that range.

If you look at my [JSON/API tutorial](https://community.glideapps.com/t/using-app-script-with-a-json-api/20051), I use exactly that technique there.

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_[View the full topic](https://community.glideapps.com/t/webhook-in-a-public-app/22071)._