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87 lines
2.2 KiB
Markdown
87 lines
2.2 KiB
Markdown
# ECB Rates
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<p style="text-align: center">
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<img
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src="images/Logo_European_Central_Bank.svg"
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width="200"
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alt="European Central Bank Logo"
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align="left"
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/>
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A CLI utility to fetch exchange reates from the European Central Bank.
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<br />
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<br />
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<br />
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<br />
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<br />
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<br />
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<br />
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</p>
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## Install
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First, make sure that you have the rust toolchain installed. If not, then go to [rustup](https://rustup.rs) to install it.
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Now, run the following cargo command:
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```sh
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cargo install --git https://github.com/lov3b/ecb-rates.git
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```
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Congratulations! Now the cli binary `ecb-rates` will be in your cargo bin folder.
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## Features
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#### Fetch as many days as you want
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It will fetch any of the following api nodes, and reduce them for you.
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- Last available day.
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- Last 90 days
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- Since the dawn of the *EUR*
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#### Display select currencies
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- as an ASCII table
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- in JSON prettified
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- in JSON minified
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#### Cache
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It features an extensive cache, which will [calculate hollidays](src/holiday.rs) in order to know whether to invalidate it or not.
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#### Show the rates in your way
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Change the rates for the perspective of any currency with the `--perspective` or `-p` flag.
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Flip it from `EUR to ALL` to `ALL to EUR` with the `--invert` or `-i` flag. It will work as expected with the *perspective* option.
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#### Fast
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It wouldn't be a rust project without being *BLAZINGLY FAST*! When the cache is valid a single day will on my computer be shown in 3 ms. When the cache isn't being used it will be ~90ms. The cache speed will largely depend on your drive, the latter will depend on your network speed. Both options are fast enought to be in a `.bashrc` or `.zshrc`
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### Examples
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#### Show the original data from ECB
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#### ...with only select currencies
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#### Put the exchange rate in the perspective of any currency
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#### Flip it
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#### Show multiple days
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## Acknowledgment
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The data is (obviously) provided by the [European Central Bank](https://www.ecb.europa.eu/stats/policy_and_exchange_rates/euro_reference_exchange_rates/html/index.en.html)
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