axum

axum
- body
- error_handling
  - future
- extract
  - connect_info
  - path
  - rejection
  - ws
    - close_code
    - rejection
- handler
  - future
- middleware
  - future
- response
  - sse
- routing
  - future
  - method_routing
- serve

axum :: extract :: ws :: close_code :: PROTOCOL

Constant `PROTOCOL`

const PROTOCOL: u16 = 1_002u16

Indicates that an endpoint is terminating the connection due to a protocol error.