If you haven’t upgraded to 0.13.0 please read the upgrading guide.

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Update the API handler file

Find your API handler at /pages/api/[...makeswift].ts 
-- import { MakeswiftApiHandler } from "@makeswift/runtime/next"
++ import { MakeswiftApiHandler } from "@makeswift/runtime/next/server"

export default MakeswiftApiHandler(process.env.MAKESWIFT_SITE_API_KEY)

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Replace deprecated functions from 0.2.0

These exported functions from @makeswift/runtime/next were deprecated:
  • getStaticPaths
  • getStaticProps
  • getServerSideProps
To replace these functions, please follow the manual installation guide. Here is the link to the official release notes.