Fix error handling, now it correctly propagates errors. (#11)

Add random + headers in context.
More tests

Author: slinkydeveloper

Cargo.toml

@@ -7,16 +7,18 @@ license = "MIT"
 repository = "https://github.com/restatedev/sdk-rust"
 
 [features]
-default = ["http"]
-http = ["hyper", "http-body-util", "hyper-util", "tokio/net", "tokio/signal", "restate-sdk-shared-core/http"]
+default = ["http_server", "rand", "uuid"]
+http_server = ["hyper", "http-body-util", "hyper-util", "tokio/net", "tokio/signal", "restate-sdk-shared-core/http"]
 
 [dependencies]
 bytes = "1.6.1"
 futures = "0.3"
+http = "1.1.0"
 http-body-util = { version = "0.1", optional = true }
 hyper = { version = "1.4.1", optional = true, features = ["server", "http2"] }
 hyper-util = { version = "0.1", features = ["tokio", "server", "server-graceful", "http2"], optional = true }
 pin-project-lite = "0.2"
+rand = { version = "0.8.5", optional = true }
 regress = "0.10"
 restate-sdk-macros = { version = "0.1.0", path = "macros" }
 restate-sdk-shared-core = { version = "0.0.5" }
@@ -26,6 +28,7 @@ thiserror = "1.0.63"
 tokio = { version = "1", default-features = false, features = ["sync", "macros"] }
 tower-service = "0.3"
 tracing = "0.1"
+uuid = { version = "1.10.0", optional = true }
 
 [dev-dependencies]
 tokio = { version = "1", features = ["full"] }