1.2.0-beta.0

[shuding]

Highlights of This Release

Dedicated API for Optimistic Updates with Auto Rollback on Error

There are now some new options in mutate:

mutate(patchUser(user), {
  revalidate: true,
  populateCache: true,
  rollbackOnError: true,
  optimisticData: user,
})

Here the cache will be immediately updated to user (optimistic value), and then a request (mutation) is started via patchUser(user) and the result will be written to the cache. If that mutation fails, the original result will be rolled back safely. And after all those finishes, a revalidation will start to fetch the latest value.

You can do the same for the global mutate, just remember to pass the key.

Here's an example: https://codesandbox.io/s/swr-basic-forked-k5hps.

What's Changed

• feat: Optimistic mutation with error rollback by @shuding in feat: Optimistic mutation with error rollback #1745
• chore: Ignore coverage report by @shuding in chore: Ignore coverage report #1744
• chore: Merge mutation states by @shuding in chore: Merge mutation states #1748
• chore: Rename CONCURRENT_REQUESTS to FETCH by @shuding in chore: Rename CONCURRENT_REQUESTS to FETCH #1749
• Merge extra request states in cache by @shuding in Merge extra request states in cache #1752

Full Changelog: 1.1.2...1.2.0-beta.0

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This discussion was created from the release 1.2.0-beta.0.