# \#rails

**URL:** https://community.swiftype.com/tag/rails/9.md

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## [Is the .env file used in the Swiftype Rails example application necessary?](https://community.swiftype.com/t/is-the-env-file-used-in-the-swiftype-rails-example-application-necessary/157)

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**Author:** [@system](https://community.swiftype.com/u/system)\
**Replies:** 0\
**Last updated:** [April 8, 2016, 10:29pm UTC](https://community.swiftype.com/t/is-the-env-file-used-in-the-swiftype-rails-example-application-necessary/157 "2016-04-08T22:29:51Z")

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A little more detail for this portion of the Rails tutorial would be helpful: Create a \`.env\` file with the Swiftype API Key and your engine slug: SWIFTYPE\_API\_KEY=your\_api\_key SWIFTYPE\_ENGINE\_SLUG=your\_engine\_slug…