Provide some push-notification/webhook service for crate upload notifications

[nagisa]

With projects like crates.fyi coming out it is becoming a desirable service to have a capability to receive some notification about new crate uploads. It could be either implemented as traditional webhook service or a long lived TCP connection-style-subscription thing.

[steveklabnik]

/cc @ashleygwilliams

On Jul 1, 2016, 13:28 -0400, Simonas Kazlauskasnotifications@github.com, wrote:

With projects like crates.fyi coming out it is becoming a desirable service to have a capability to receive some notification about new crate uploads. It could be either implemented as traditional webhook service or a long lived TCP connection-style-subscription thing.

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[alexcrichton]

Yeah I think we definitely want the ability to register webhooks here, but for a fully-featured workflow we'd also need an automated way of registering webhooks (e.g. an API to register webhooks), and that may be somewhat tricky...

[lambda-fairy]

This would be useful for cargobot (the crates.io announcer on #rust-bots) as well.

[benaryorg]

I proposed the #439 issue regarding VersionEye integration. I myself have never used VersionEye, but I think it at least partially offers the functionality that is under discussion here so one might think of implementing that first and see if people really have more demanding requirements.

[SimonSapin]

I’ve heard of some unrelated projects (ab)using Twitter to get broadcast notifications of various kinds of events. GitHub’s integration with Twitter could be enabled for https://github.com/rust-lang/crates.io-index so that a tweet is sent for every push or ever commit. Then services like crates.fyi / docs.rs can use Twitter’s streaming APIs to get notified.

This has downsides (such as being tied to a another closed platform owned by a for-profit company), but it would allow getting something running without building new infrastructure.

[Turbo87]

FWIW we have RSS feeds for crates.io now (see https://blog.rust-lang.org/2024/07/29/crates-io-development-update.html#rss-feeds), which serve a roughly similar purpose, but are a lot easier to support on our side. While these RSS feeds are pull-based, they do include all data from a certain timeframe, so if polls happen within that timeframe nothing should be missed. Building and maintaining a push-based system is currently not on our roadmap and I don't expect that to change for the foreseeable future.