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Write a service in go-lang that exposes a web API that, when called, will tell you whether or not the International Space Station is currently visible to those on the earth directly beneath it.
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The space station should be considered visible when the following conditions are met:
- a) It is after sunset, and
- b) cloud cover <= 30%
Useful public APIs to use:
To determine the position of the space station at any instant you can use the API documented here: http://open-notify.org/Open-Notify-API/ISS-Location-Now/
To determine local time, sunrise/sunset, and cloud cover, you can use the API documented here: https://www.weatherbit.io/api/weather-current
Note you can sign up for a free key to use this API – it will be limited to 500 calls per day, at a max rate of 1 call/second, which should be enough for this exercise.
Instructions:
Please write the service as you would your production-quality code, including documentation, unit tests, and other measures you would take to ensure the correctness of the code. Also have a think about what V2 of the application might look like.
- Add ISS location service
- Add Weather service
- Call services in sequence
- Call services in parallel
- Replace default router with chi
- Configurable accuracy of overhead via ENV Variable
- via (optional) query param
- function composition of handlers
- allow setting accuracy from ENV variable
- Handle non-200 responses from external rest apis
- gzip compress response
- generate swagger docs
- structured logging
- set log level via ENV Variable
- serve over https
- Add dev
Dockerfile - Add build
Dockerfile - static code analysis (
go vet/staticcheck) - serve swagger-ui
- Circle-ci build
- Code coverage report (codecov perhaps)
- Add minimum code coverage to pre-push hook
- display coverage in friendly (human readable) report
- middleware to log requests/responses