Update README.md

petertimwalker · May 24, 2024 · ad41636 · ad41636
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 # api-service
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+This is a simple Express app hosted on an EC2 server used by peterwalker.xyz/bookapp to fetch the Google Books Api key it uses.
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+peterwalker.xyz/bookapp fetches this api key by calling https://api.peterwalker.xyz/api/key.
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+This is important because Single Page Applications expose any secrets they are built with.