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28 lines
1.8 KiB
Markdown
28 lines
1.8 KiB
Markdown
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# Rate Limit
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To mitigate abuse + scraping of your instance, an IP-based HTTP rate limit is in place.
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This rate limit applies not just to the API, but to all requests (web, federation, etc).
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By default, a maximum of 1000 requests in a 5 minute time window are allowed.
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Every response will include the current status of the rate limit with the following headers:
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- `X-Ratelimit-Limit`: maximum number of requests allowed per time period.
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- `X-Ratelimit-Remaining`: number of remaining requests that can still be performed within.
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- `X-Ratelimit-Reset`: unix timestamp indicating when the rate limit will reset.
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In case the rate limit is exceeded, an [HTTP 429 Too Many Requests](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/429) error is returned to the caller.
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## Rate Limiting FAQs
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### My rate limit keeps being exceeded! Why?
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If you find that your rate limit is regularly being exceeded (both for yourself and other callers) during normal use of your instance, it's possible that your `trusted-proxies` setting is not configured correctly. This can result in your instance seeing all incoming IP addresses as the same address: namely, the IP address of your reverse proxy. This means that all incoming requests are *sharing the same rate limit*, rather than being split correctly per IP.
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You can investigate this by viewing the logs of your instance. If (almost) all logged IP addresses appear to be the same IP address (something like `172.x.x.x`), then it's likely that your `trusted-proxies` is not correctly configured. If this is the case, try adding the IP address of your reverse proxy to the list of `trusted-proxies`, and restarting your instance.
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### Can I configure the rate limit? Can I just turn it off?
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Yes! See the config setting `advanced-rate-limit-requests`.
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