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The insert function returns a tuple that indicates success or failure.

We use pattern matching to determine what HTTP status and data to render into JSON.

If that use exists, we use the update changeset with Ecto update to perform the update. So we now have basic get, post and put endpoints that work.

We’ll now work to do some cleanup the code and return more useful error messages.

With this function in place, I then modify the two controller actions to add this transformation.

This release ships with exciting new features, most notably HTTP2 support, improved development experience with faster compile times, new error pages, and local SSL certificate generation.

Once we have the changeset, we can revisit our model and add code to commit data to our database. We provide the params from the API call to the changeset function we just created.

That changeset is then sent to the Ecto insert function.

If you are used to using another Rails like framework, it should feel quite familiar.

The only major difference is the separation of the changeset from the model.

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My assumption here is that a database call that returns nil indicates a not found error.

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