Cargo Features
poem-grpc has no features set by default.
[dependencies]
poem-grpc = { version = "0.4.1", features = ["json-codec"] }- json-codec = 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.