Add ReactNative language target

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/LanguageTarget.java

@@ -39,6 +39,18 @@ String getTemplateFileName() {
         }
     },
 
+    /**
+     * ReactNative-specific language target.
+     * Note: ReactNative target extends from Browser target. You only need to add
+     * ReactNative dependencies if they are different to Browser dependencies.
+     */
+    REACT_NATIVE {
+        @Override
+        String getTemplateFileName() {
+            return "runtimeConfig.rn.ts.template";
+        }
+    },
+
     /**
      * A language target that shares configuration that is shared across all
      * runtimes.

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/PackageJsonGenerator.java

@@ -54,6 +54,9 @@ static void writePackageJson(
         // Add the Node vs Browser hook.
         node = node.withMember("browser", Node.objectNode()
                 .withMember("./runtimeConfig", "./runtimeConfig.browser"));
+        // Add the ReactNative hook.
+        node = node.withMember("react-native", Node.objectNode()
+                .withMember("./runtimeConfig", "./runtimeConfig.rn"));
 
         // Expand template parameters.
         String template = Node.prettyPrintJson(node);

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/TypeScriptDependency.java

@@ -45,6 +45,7 @@ public enum TypeScriptDependency implements SymbolDependencyContainer {
 
     AWS_SDK_STREAM_COLLECTOR_NODE("dependencies", "@aws-sdk/stream-collector-node", "^1.0.0-alpha.1", true),
     AWS_SDK_STREAM_COLLECTOR_BROWSER("dependencies", "@aws-sdk/stream-collector-browser", "^1.0.0-alpha.1", true),
+    AWS_SDK_STREAM_COLLECTOR_RN("dependencies", "@aws-sdk/stream-collector-rn", "^1.0.0-alpha.0", true),
 
     AWS_SDK_URL_PARSER_BROWSER("dependencies", "@aws-sdk/url-parser-browser", "^1.0.0-alpha.1", true),
     AWS_SDK_URL_PARSER_NODE("dependencies", "@aws-sdk/url-parser-node", "^1.0.0-alpha.1", true),

smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/base-package.json

@@ -23,6 +23,9 @@
   "browser": {
     "./runtimeConfig": "./runtimeConfig.browser"
   },
+  "react-native": {
+    "./runtimeConfig": "./runtimeConfig.rn"
+  },
   "sideEffects": false,
   "dependencies": {
     "tslib": "^1.8.0"

smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/runtimeConfig.rn.ts.template

@@ -0,0 +1,12 @@
+import { parseUrl } from "@aws-sdk/url-parser-node";
+import { name, version } from "./package.json";
+import { ClientDefaults } from "${clientModuleName}";
+import { ClientDefaultValues as BrowserDefaults } from "./runtimeConfig.browser";
+
+export const ClientDefaultValues: Required<ClientDefaults> = {
+  ...BrowserDefaults,
+  urlParser: parseUrl,
+  defaultUserAgent: `aws-sdk-js-v3-react-native-${name}/${version}`,
+  runtime: "browser",
+${customizations}
+};

smithy-typescript-codegen/src/test/java/software/amazon/smithy/typescript/codegen/RuntimeConfigGeneratorTest.java

@@ -45,11 +45,13 @@ public void addRuntimeConfigValues(
                 settings, model, symbolProvider, delegator, integrations);
         generator.generate(LanguageTarget.NODE);
         generator.generate(LanguageTarget.BROWSER);
+        generator.generate(LanguageTarget.REACT_NATIVE);
         generator.generate(LanguageTarget.SHARED);
         delegator.flushWriters();
 
         Assertions.assertTrue(manifest.hasFile("runtimeConfig.ts"));
         Assertions.assertTrue(manifest.hasFile("runtimeConfig.browser.ts"));
+        Assertions.assertTrue(manifest.hasFile("runtimeConfig.rn.ts"));
         Assertions.assertTrue(manifest.hasFile("runtimeConfig.shared.ts"));
 
         // Does the runtimeConfig.shared.ts file expand the template properties properly?
@@ -64,9 +66,17 @@ public void addRuntimeConfigValues(
         assertThat(runtimeConfigContents, containsString("syn: 'ack',"));
 
         // Does the runtimeConfig.browser.ts file expand the template properties properly?
-        String runtimeConfigBrowserContents = manifest.getFileString("runtimeConfig.ts").get();
+        String runtimeConfigBrowserContents = manifest.getFileString("runtimeConfig.browser.ts").get();
         assertThat(runtimeConfigBrowserContents,
                    containsString("import { ClientDefaults } from \"./ExampleClient\";"));
         assertThat(runtimeConfigContents, containsString("syn: 'ack',"));
+
+        // Does the runtimeConfig.rn.ts file expand the browser template properties properly?
+        String runtimeConfigRNContents = manifest.getFileString("runtimeConfig.rn.ts").get();
+        assertThat(runtimeConfigRNContents,
+                containsString("import { ClientDefaults } from \"./ExampleClient\";"));
+        assertThat(runtimeConfigRNContents,
+                containsString("import { ClientDefaultValues as BrowserDefaults } from \"./runtimeConfig.browser\";"));
+        assertThat(runtimeConfigContents, containsString("syn: 'ack',"));
     }
 }