add decrease_remaining_to/4 #74
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grempe
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Jun 21, 2022
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grempe
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grempe
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Can you add some brief docs to the README to cover usage and motivation for this feature?
I left a note about a typo.
| - `id` (Erlang term()) name of the bucket | ||
| - `scale` (Integer) of time the bucket you want to inspect was created with. | ||
| - `limit` (Integer) representing the max counter size the bucket was created with. | ||
| - `new_remaining` (Integer) the new value for remaining, will replace current remaining iff it is less. |
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There's a typo in this line "iff"
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It might have been https://en.wikipedia.org/wiki/If_and_only_if
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When you have several systems, in our case one written in ruby and one in elixir both hitting the same api, they both count against the api's rate limit. In this case, our internal rate limit (maintained w/ ExRated) is occasionally very incorrect.
However, the api returns an x-ratelimit-remaining header. So, if we notice that the api's remaining is much lower than ExRated, we would like to simply use the api's. And we would like to do so atomically, such that, if the value that ExRated has for remaining is actually lower than what the API has, we want to use ExRated's version.
Changes:
decrease_remaining_topublic function to ExRated, which casts to the genserver