Added rate limit in the gateway

[Ashad-h]

Fix #450

• Allow to set custom headers for Errors
• Use hono app.onError instead of a plain middleware to handle error. This allow to throw error inside middlewares.
• Using https://github.com/animir/node-rate-limiter-flexible
  • Added a rate limiter for all routes in a middleware
  • It use redis in background to save rate limit

TODO

• [x] Create different redis host for rate limit (I'm using QUEUE_HOST for now)

Question

• Do you have a way to benchmark the gateway latency to see the impact of this ?

[geclos]

This is awesome! Now that you are at it might as well include the compression middleware? https://hono.dev/docs/middleware/builtin/compress

[geclos]

Do you have a way to benchmark the gateway latency to see the impact of this ?

Not for local development, no. I usually recommend using drill for this. I might write add a benchmark for the api to the repo at some point.

[geclos]

Create different redis host for rate limit (I'm using QUEUE_HOST for now)

Use de cache host instead (core exports a cache method to instantiate the redis client to the cache).

There is no need to set different rate limits per subscription for now

[Ashad-h]

This is awesome! Now that you are at it might as well include the compression middleware? https://hono.dev/docs/middleware/builtin/compress

The compress middleware is breaking the token streaming in the playground, I don't understand why

[geclos]

The compress middleware is breaking the token streaming in the playground, I don't understand why

:/ no wrorries then, i will take at look at it at some point