Healthie.NET.Coravel
4.1.0
Prefix Reserved
dotnet add package Healthie.NET.Coravel --version 4.1.0
NuGet\Install-Package Healthie.NET.Coravel -Version 4.1.0
<PackageReference Include="Healthie.NET.Coravel" Version="4.1.0" />
<PackageVersion Include="Healthie.NET.Coravel" Version="4.1.0" />
<PackageReference Include="Healthie.NET.Coravel" />
paket add Healthie.NET.Coravel --version 4.1.0
#r "nuget: Healthie.NET.Coravel, 4.1.0"
#:package Healthie.NET.Coravel@4.1.0
#addin nuget:?package=Healthie.NET.Coravel&version=4.1.0
#tool nuget:?package=Healthie.NET.Coravel&version=4.1.0

Healthie.NET.Coravel
▶ Live demo — healthie.compiletheory.com — a read-only Healthie.NET dashboard watching real status pages (Anthropic, OpenAI, GitHub, Cloudflare, and more), built from these packages.
Runs pulse checks on Coravel's scheduler, so an application already using Coravel keeps one scheduler rather than two.
Installation
dotnet add package Healthie.NET.Coravel
Usage
using Healthie.Scheduling.Coravel;
builder.Services
.AddHealthie(typeof(Program).Assembly)
.AddHealthieCoravel();
var app = builder.Build();
app.Services.UseHealthiePulseScheduler();
What this actually does, and when not to use it
Read this before choosing it.
Coravel has no API for removing a scheduled job. Its IScheduler exposes only Schedule methods — verified against Coravel 6.0.2. IPulseScheduler requires the opposite: checkers are scheduled, rescheduled and unscheduled while the application runs, from the dashboard and the REST API.
So this package does not register a Coravel job per checker. It registers one job that runs every second and asks Healthie which checkers are due; the due times live in Healthie, not in Coravel. Coravel supplies the tick and its host lifetime, and Healthie decides what runs.
That is a real integration and it works — schedules, reschedules and unschedules all behave — but it is worth being clear that Coravel is doing less here than it does for your own jobs.
If you are not already using Coravel, use the built-in timer scheduler instead. It does the same thing with no dependency. This package earns its place only when Coravel is already in the application and you would rather have one scheduler than two.
Granularity
The tick runs every second, so a checker cannot run more often than that. Anything from one second upward works, including cron expressions — standard Unix syntax, five fields or six with a leading seconds field.
PreventOverlapping stops a slow tick being started again on top of itself. Checkers run one after another within a tick rather than in parallel, so a slow check cannot delay the next tick for everything else; each checker already refuses to overlap itself.
| Product | Versions Compatible and additional computed target framework versions. |
|---|---|
| .NET | net8.0 is compatible. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 was computed. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed. |
-
net10.0
- Coravel (>= 6.0.2)
- Cronos (>= 0.13.0)
- Healthie.NET.Abstractions (>= 4.1.0)
-
net8.0
- Coravel (>= 6.0.2)
- Cronos (>= 0.13.0)
- Healthie.NET.Abstractions (>= 4.1.0)
NuGet packages
This package is not used by any NuGet packages.
GitHub repositories
This package is not used by any popular GitHub repositories.
Twenty packages was too many, and two of them had no business being separate. This release fixes
that without breaking anything: **an application on 4.0.0 upgrades by changing nothing.**
### Added
- **`Healthie.NET`**, the package to install first. It carries no code of its own, only a dependency
on `Healthie.NET.DependencyInjection`, so it is one install and one dependency rather than a
bundle -- no provider, scheduler or UI framework arrives with it. The name people guess did not
exist before, and the actual entry point was called `DependencyInjection`, which reads like
plumbing rather than the way in.
- **Uptime reporting and leader election are in the core package.** `AddHealthieUptime()` and
`AddHealthieLeaderElection()` need nothing else installed. Both stay opt-in: nothing runs until
you call them.
### Deprecated
- **`Healthie.NET.Uptime`** and **`Healthie.NET.LeaderElection`**. Neither carried a third-party
dependency, so keeping them separate cost two installs and saved nothing -- the provider packages
exist to keep Npgsql or Temporalio off machines that do not use them, and these two were not
providers.
**Nothing breaks.** Both packages are still published, now as assemblies of type forwards, so an
application that references either keeps compiling *and* keeps running untouched. That is what
makes this a minor release: moving a type between assemblies is a binary break the compiler cannot
see, because source keeps building and only the runtime finds out. Remove the reference whenever it
suits you; neither package will gain features.
### Fixed
- **The sample Dockerfiles took their .NET base images by mutable tag.** A tag is a different image
next week, so the build that passed review is not the build that ships. Both are pinned by digest,
which Dependabot updates the way it updates a package version. Closes four OpenSSF Scorecard
*Pinned-Dependencies* findings.
### Security
- **An Azure CosmosDB key committed in May 2025 was confirmed dead and the alert closed.** It had
already been removed from the working tree; the account it belonged to no longer exists in the
owning tenant, verified by enumerating every Cosmos account across that tenant's subscriptions, so
the key authenticates to nothing. It remains in history at `ee0c78e`, inert.
- **Stray screenshots can no longer be committed.** Root-level PNGs are ignored, scoped to the root
so the images the docs and samples genuinely ship are untouched.
Full changelog: https://github.com/ivanvyd/Healthie.NET/blob/v4.1.0/CHANGELOG.md