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Add limitations section

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Philipp Heckel 2021-12-15 19:23:44 -05:00
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docs/publish.md
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@ -669,6 +669,17 @@ to `no`. This will instruct the server not to forward messages to Firebase.
]));
```
## Limitations
There are a few limitations to the API to prevent abuse and to keep the server healthy. Most of them you won't run into,
but just in case, let's list them all:
| Limit | Description |
|---|---|
| **Message length** | Each message can be up to 512 bytes long. Longer messages are truncated. |
| **Requests per second** | By default, the server is configured to allow 60 requests at once, and then refills the your allowed requests bucket at a rate of one request per 10 seconds. You can read more about this in the [rate limiting](config.md#rate-limiting) section. |
| **Subscription limits** | By default, the server allows each visitor to keep 30 connections to the server open. |
| **Total number of topics** | By default, the server is configured to allow 5,000 topics. The ntfy.sh server has higher limits though. |
## List of all parameters
The following is a list of all parameters that can be passed when publishing a message. Parameter names are **case-insensitive**,
and can be passed as **HTTP headers** or **query parameters in the URL**.