mrbrianevans / companies-house-stream Goto Github PK

FYI
There's been a change to the streaming API - https://forum.aws.chdev.org/t/streaming-api-concurrent-connections/4912
As your code connects to all 6 at once, it will cause problems :(

At the moment it only shows the basic company data stream.

Add in the PSC stream, and any others that are available.

It would be good to allow the user to filter certain types of events and limit the rate at which they are shown.

For example, only display new company registrations at a maximum speed of 1 new company per second.

Each type of event is a different shape.

Sometimes, companies house servers send two JSON events in a single chunk, without a newline separator. The current JSON parser only looks for a newline character to separate on, but should also look for }}{ to pick up two events from the same chunk.

Maybe a regular expression like }}\s*{ to allow for some, or zero whitespace

https://bun.sh/docs/api/websockets

Bun offers very good websocket performance.
It also offers pub/sub topics which could potentially be used to replace the current setup of keeping an array of client listeners.

Migrating to Bun also removes the need for typescript compilation as Bun can run .ts files.

View window has not been set so the mobile experience is terrible.

It should have only one notification on a line (100% width) for mobile devices.

When the disconnect/connect button is pressed, it increases the number of connections each time, so the client receives multiple duplicate events each time an event is emitted from the server