mirror of
https://github.com/actix/examples
synced 2024-11-30 17:14:35 +01:00
45 lines
1.0 KiB
Markdown
45 lines
1.0 KiB
Markdown
# actix-sse
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Example of server-sent events, aka `EventSource`, with actix web.
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```sh
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cd server-sent-events
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cargo run
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```
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Open http://127.0.0.1:8080/ with a browser, then send events with another HTTP client:
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```sh
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curl 127.0.0.1:8080/broadcast/my_message
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```
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_my_message_ should appear in the browser with a timestamp.
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## Performance
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This implementation can serve thousands of clients on a 2021 MacBook with no problems.
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Run `node ./benchmark.js` to benchmark your own system:
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```sh
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$ node benchmark.js
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Connected: 1000, connection time: 201 ms, total broadcast time: 20 ms^C⏎
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```
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### Error _Too many open files_
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You may be limited to a maximal number of connections (open file descriptors). Setting maximum number of open file descriptors to 2048:
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```sh
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ulimit -n 2048
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```
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Test maximum number of open connections with `node ./drain.js`:
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```sh
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$ node drain.js
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Connections dropped: 10450, accepting connections: false^C⏎
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```
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_Accepting connections_ indicates whether resources for the server have been exhausted.
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