Add aws-lambda as a feature to generated server SDK

CHANGELOG.next.toml

@@ -65,3 +65,9 @@ message = "Update MSRV to `1.76.0`"
 references = ["smithy-rs#3653"]
 meta = { "breaking" = true, "tada" = true, "bug" = false, "target" = "all" }
 author = "landonxjames"
+
+[[smithy-rs]]
+message = "A feature, `aws-lambda`, is added to the generated SDK to re-export types required for Lambda deployment."
+references = ["smithy-rs#3643"]
+meta = { "breaking" = false, "bug" = true, "tada" = false }
+author = "drganjoo"

codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/customizations/ServerRequiredCustomizations.kt

@@ -48,6 +48,14 @@ class ServerRequiredCustomizations : ServerCodegenDecorator {
             ),
         )
 
+        rustCrate.mergeFeature(
+            Feature(
+                "aws-lambda",
+                true,
+                listOf("aws-smithy-http-server/aws-lambda"),
+            ),
+        )
+
         rustCrate.withModule(ServerRustModule.Types) {
             pubUseSmithyPrimitives(codegenContext, codegenContext.model, rustCrate)(this)
             rustTemplate(

examples/pokemon-service-lambda/src/main.rs

@@ -5,14 +5,16 @@
 
 use std::sync::Arc;
 
-use aws_smithy_http_server::{routing::LambdaHandler, AddExtensionLayer};
+use aws_smithy_http_server::AddExtensionLayer;
 
 use pokemon_service_common::{
     capture_pokemon, check_health, do_nothing, get_pokemon_species, get_server_statistics,
     setup_tracing, stream_pokemon_radio, State,
 };
 use pokemon_service_lambda::get_storage_lambda;
-use pokemon_service_server_sdk::{PokemonService, PokemonServiceConfig};
+use pokemon_service_server_sdk::{
+    server::routing::LambdaHandler, PokemonService, PokemonServiceConfig,
+};
 
 #[tokio::main]
 pub async fn main() {