# what is \_\_BASE\_PATH\_\_?

**URL:** https://discourse.vtk.org/t/what-is-base-path/10222
**Category:** Web
**Created:** [December 16, 2022, 8:28am UTC](https://discourse.vtk.org/t/what-is-base-path/10222 "2022-12-16T08:28:44Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![jane](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/j/ecb155/32.png) [@jane](https://discourse.vtk.org/u/jane)
#### Post date: [December 16, 2022, 8:28am UTC](https://discourse.vtk.org/t/what-is-base-path/10222/1 "2022-12-16T08:28:45Z")

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**BASE\_PATH**

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### Author: ![Forrest](https://discourse.vtk.org/user_avatar/discourse.vtk.org/forrest/32/300_2.png) [@Forrest](https://discourse.vtk.org/u/Forrest)
#### Post date: [December 16, 2022, 3:46pm UTC](https://discourse.vtk.org/t/what-is-base-path/10222/2 "2022-12-16T15:46:53Z")

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` __BASE_PATH__ ` gets substituted with the base URL of the server. For running examples locally, you can think of the base path being “[http://localhost:9999/](http://localhost:9999/)”.

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### Author: ![Sebastien\_Jourdain](https://discourse.vtk.org/user_avatar/discourse.vtk.org/sebastien_jourdain/32/100_2.png) [@Sebastien\_Jourdain](https://discourse.vtk.org/u/Sebastien_Jourdain)
#### Post date: [December 16, 2022, 3:56pm UTC](https://discourse.vtk.org/t/what-is-base-path/10222/3 "2022-12-16T15:56:22Z")

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Duplicate of [use vtk.js - #4 by Sebastien\_Jourdain](https://discourse.vtk.org/t/use-vtk-js/10221/4)

Please only post your question once