Cargo Features

routerify-websocket has no features set by default.

[dependencies]
routerify-websocket = { version = "3.0.0", features = ["all", "json"] }
all = json
json all? = serde, serde_json

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

serde json?
serde_json json?