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The healthchecks library upgraded to ureq 2.0 as part of the healthchecks 2.0 release, missing a crucial feature: retries. The pings module still contains remnants of that code. Bringing it back is a nice to have option for resilience.

https://github.com/healthchecks/healthchecks/releases/tag/v2.6

A simple CLI tool that reads an API key from the environment and is able to list checks with their last pings is good enough as a start.

https://rust-lang.github.io/rust-clippy/master/index.html#missing_errors_doc

f0c9c45 implemented hcctl search <search-term> which gets a list of pings from healthchecks, matches the search term against them and then prints the results.

This can be extended to create a variant of hcctl pings <UUID> that looks like hcctl pings <search-term>, by trying to parse the argument as a UUID, and falling back to hcctl search's logic if the value is not a valid UUID.

It is more type-safe and allows idiomatic access of values (opts.check_id vs matches.value_of("check_id").unwrap()).

Clap documentation

The time crate has gotten all the functionality we need so chrono no longer needs to exist as an abstraction between us and time.

As noted in the healthchecks README, there are a couple remaining admin APIs that should be relatively straightforward to add.

Resources:

• API docs
• Transform tools (to convert JSON to a serde compatible struct)

The pinging APIs also have support for additional parameters such as including logs for analysis, and we should try and support this case.

https://healthchecks.io/docs/reliability_tips/

I currently use hcctl to monitor sync jobs and have them run by cron from the distro. Using a cron parser it should be possible to implement a scheduler within hcctl. Steps to completion would roughly be:

1. Add a cron expression parser (preferably a library dependency) and wire up the CLI to accept and validate it as input
2. Add support for running a task and sleeping till the next run as decided by the cron expression

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• chore(deps): lock file maintenance

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