# `mix chime.gen.vapid`
[🔗](https://github.com/hattoriai/chime/blob/v0.1.0-dev/lib/mix/tasks/chime.gen.vapid.ex#L1)

Generates a pair of VAPID keys, for `:web` of the `:push` option of
`Chime.Config`:

    $ mix chime.gen.vapid

Keep the private key as a secret of the app's (an environment
variable), and give both to Chime in `config/runtime.exs`. Make them
once: browsers subscribed with the public key stop getting pushes when
it changes.

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*Consult [api-reference.md](api-reference.md) for complete listing*