feat(clients): use default values according to defaultsMode config

clients/client-accessanalyzer/package.json

@@ -42,6 +42,8 @@
     "@aws-sdk/util-base64-node": "3.46.0",
     "@aws-sdk/util-body-length-browser": "3.46.0",
     "@aws-sdk/util-body-length-node": "3.46.0",
+    "@aws-sdk/util-defaults-mode-browser": "3.0.0",
+    "@aws-sdk/util-defaults-mode-node": "3.0.0",
     "@aws-sdk/util-user-agent-browser": "3.46.0",
     "@aws-sdk/util-user-agent-node": "3.46.0",
     "@aws-sdk/util-utf8-browser": "3.46.0",

clients/client-accessanalyzer/src/AccessAnalyzerClient.ts

@@ -30,6 +30,7 @@ import {
 import { HttpHandler as __HttpHandler } from "@aws-sdk/protocol-http";
 import {
   Client as __Client,
+  DefaultsMode,
   SmithyConfiguration as __SmithyConfiguration,
   SmithyResolvedConfiguration as __SmithyResolvedConfiguration,
 } from "@aws-sdk/smithy-client";
@@ -283,6 +284,11 @@ export interface ClientDefaults extends Partial<__SmithyResolvedConfiguration<__
    * @internal
    */
   defaultUserAgentProvider?: Provider<__UserAgent>;
+
+  /**
+   * The {@link DefaultsMode} that will be used to determine how certain default configuration options are resolved in the SDK.
+   */
+  defaultsMode?: DefaultsMode | Provider<DefaultsMode>;
 }
 
 type AccessAnalyzerClientConfigType = Partial<__SmithyConfiguration<__HttpHandlerOptions>> &

clients/client-accessanalyzer/src/runtimeConfig.browser.ts

@@ -3,7 +3,7 @@ import packageInfo from "../package.json"; // eslint-disable-line
 
 import { Sha256 } from "@aws-crypto/sha256-browser";
 import { DEFAULT_USE_DUALSTACK_ENDPOINT, DEFAULT_USE_FIPS_ENDPOINT } from "@aws-sdk/config-resolver";
-import { FetchHttpHandler, streamCollector } from "@aws-sdk/fetch-http-handler";
+import { FetchHttpHandler as RequestHandler, streamCollector } from "@aws-sdk/fetch-http-handler";
 import { invalidProvider } from "@aws-sdk/invalid-dependency";
 import { DEFAULT_MAX_ATTEMPTS, DEFAULT_RETRY_MODE } from "@aws-sdk/middleware-retry";
 import { fromBase64, toBase64 } from "@aws-sdk/util-base64-browser";
@@ -12,16 +12,21 @@ import { defaultUserAgent } from "@aws-sdk/util-user-agent-browser";
 import { fromUtf8, toUtf8 } from "@aws-sdk/util-utf8-browser";
 import { AccessAnalyzerClientConfig } from "./AccessAnalyzerClient";
 import { getRuntimeConfig as getSharedRuntimeConfig } from "./runtimeConfig.shared";
+import { loadConfigsForDefaultMode } from "@aws-sdk/smithy-client";
+import { resolveDefaultsModeConfig } from "@aws-sdk/util-defaults-mode-browser";
 
 /**
  * @internal
  */
 export const getRuntimeConfig = (config: AccessAnalyzerClientConfig) => {
+  const defaultsMode = resolveDefaultsModeConfig(config);
+  const defaultConfigProvider = () => defaultsMode().then(loadConfigsForDefaultMode);
   const clientSharedValues = getSharedRuntimeConfig(config);
   return {
     ...clientSharedValues,
     ...config,
     runtime: "browser",
+    defaultsMode,
     base64Decoder: config?.base64Decoder ?? fromBase64,
     base64Encoder: config?.base64Encoder ?? toBase64,
     bodyLengthChecker: config?.bodyLengthChecker ?? calculateBodyLength,
@@ -32,8 +37,8 @@ export const getRuntimeConfig = (config: AccessAnalyzerClientConfig) => {
       defaultUserAgent({ serviceId: clientSharedValues.serviceId, clientVersion: packageInfo.version }),
     maxAttempts: config?.maxAttempts ?? DEFAULT_MAX_ATTEMPTS,
     region: config?.region ?? invalidProvider("Region is missing"),
-    requestHandler: config?.requestHandler ?? new FetchHttpHandler(),
-    retryMode: config?.retryMode ?? (() => Promise.resolve(DEFAULT_RETRY_MODE)),
+    requestHandler: config?.requestHandler ?? new RequestHandler(defaultConfigProvider),
+    retryMode: config?.retryMode ?? (async () => (await defaultConfigProvider()).retryMode || DEFAULT_RETRY_MODE),
     sha256: config?.sha256 ?? Sha256,
     streamCollector: config?.streamCollector ?? streamCollector,
     useDualstackEndpoint: config?.useDualstackEndpoint ?? (() => Promise.resolve(DEFAULT_USE_DUALSTACK_ENDPOINT)),

clients/client-accessanalyzer/src/runtimeConfig.ts

@@ -10,25 +10,34 @@ import {
 } from "@aws-sdk/config-resolver";
 import { defaultProvider as credentialDefaultProvider } from "@aws-sdk/credential-provider-node";
 import { Hash } from "@aws-sdk/hash-node";
-import { NODE_MAX_ATTEMPT_CONFIG_OPTIONS, NODE_RETRY_MODE_CONFIG_OPTIONS } from "@aws-sdk/middleware-retry";
+import {
+  DEFAULT_RETRY_MODE,
+  NODE_MAX_ATTEMPT_CONFIG_OPTIONS,
+  NODE_RETRY_MODE_CONFIG_OPTIONS,
+} from "@aws-sdk/middleware-retry";
 import { loadConfig as loadNodeConfig } from "@aws-sdk/node-config-provider";
-import { NodeHttpHandler, streamCollector } from "@aws-sdk/node-http-handler";
+import { NodeHttpHandler as RequestHandler, streamCollector } from "@aws-sdk/node-http-handler";
 import { fromBase64, toBase64 } from "@aws-sdk/util-base64-node";
 import { calculateBodyLength } from "@aws-sdk/util-body-length-node";
 import { defaultUserAgent } from "@aws-sdk/util-user-agent-node";
 import { fromUtf8, toUtf8 } from "@aws-sdk/util-utf8-node";
 import { AccessAnalyzerClientConfig } from "./AccessAnalyzerClient";
 import { getRuntimeConfig as getSharedRuntimeConfig } from "./runtimeConfig.shared";
+import { loadConfigsForDefaultMode } from "@aws-sdk/smithy-client";
+import { resolveDefaultsModeConfig } from "@aws-sdk/util-defaults-mode-node";
 
 /**
  * @internal
  */
 export const getRuntimeConfig = (config: AccessAnalyzerClientConfig) => {
+  const defaultsMode = resolveDefaultsModeConfig(config);
+  const defaultConfigProvider = () => defaultsMode().then(loadConfigsForDefaultMode);
   const clientSharedValues = getSharedRuntimeConfig(config);
   return {
     ...clientSharedValues,
     ...config,
     runtime: "node",
+    defaultsMode,
     base64Decoder: config?.base64Decoder ?? fromBase64,
     base64Encoder: config?.base64Encoder ?? toBase64,
     bodyLengthChecker: config?.bodyLengthChecker ?? calculateBodyLength,
@@ -39,8 +48,13 @@ export const getRuntimeConfig = (config: AccessAnalyzerClientConfig) => {
       defaultUserAgent({ serviceId: clientSharedValues.serviceId, clientVersion: packageInfo.version }),
     maxAttempts: config?.maxAttempts ?? loadNodeConfig(NODE_MAX_ATTEMPT_CONFIG_OPTIONS),
     region: config?.region ?? loadNodeConfig(NODE_REGION_CONFIG_OPTIONS, NODE_REGION_CONFIG_FILE_OPTIONS),
-    requestHandler: config?.requestHandler ?? new NodeHttpHandler(),
-    retryMode: config?.retryMode ?? loadNodeConfig(NODE_RETRY_MODE_CONFIG_OPTIONS),
+    requestHandler: config?.requestHandler ?? new RequestHandler(defaultConfigProvider),
+    retryMode:
+      config?.retryMode ??
+      loadNodeConfig({
+        ...NODE_RETRY_MODE_CONFIG_OPTIONS,
+        default: async () => (await defaultConfigProvider()).retryMode || DEFAULT_RETRY_MODE,
+      }),
     sha256: config?.sha256 ?? Hash.bind(null, "sha256"),
     streamCollector: config?.streamCollector ?? streamCollector,
     useDualstackEndpoint: config?.useDualstackEndpoint ?? loadNodeConfig(NODE_USE_DUALSTACK_ENDPOINT_CONFIG_OPTIONS),

clients/client-account/package.json

@@ -42,6 +42,8 @@
     "@aws-sdk/util-base64-node": "3.46.0",
     "@aws-sdk/util-body-length-browser": "3.46.0",
     "@aws-sdk/util-body-length-node": "3.46.0",
+    "@aws-sdk/util-defaults-mode-browser": "3.0.0",
+    "@aws-sdk/util-defaults-mode-node": "3.0.0",
     "@aws-sdk/util-user-agent-browser": "3.46.0",
     "@aws-sdk/util-user-agent-node": "3.46.0",
     "@aws-sdk/util-utf8-browser": "3.46.0",

clients/client-account/src/AccountClient.ts

@@ -30,6 +30,7 @@ import {
 import { HttpHandler as __HttpHandler } from "@aws-sdk/protocol-http";
 import {
   Client as __Client,
+  DefaultsMode,
   SmithyConfiguration as __SmithyConfiguration,
   SmithyResolvedConfiguration as __SmithyResolvedConfiguration,
 } from "@aws-sdk/smithy-client";
@@ -193,6 +194,11 @@ export interface ClientDefaults extends Partial<__SmithyResolvedConfiguration<__
    * @internal
    */
   defaultUserAgentProvider?: Provider<__UserAgent>;
+
+  /**
+   * The {@link DefaultsMode} that will be used to determine how certain default configuration options are resolved in the SDK.
+   */
+  defaultsMode?: DefaultsMode | Provider<DefaultsMode>;
 }
 
 type AccountClientConfigType = Partial<__SmithyConfiguration<__HttpHandlerOptions>> &

clients/client-account/src/runtimeConfig.browser.ts

@@ -3,7 +3,7 @@ import packageInfo from "../package.json"; // eslint-disable-line
 
 import { Sha256 } from "@aws-crypto/sha256-browser";
 import { DEFAULT_USE_DUALSTACK_ENDPOINT, DEFAULT_USE_FIPS_ENDPOINT } from "@aws-sdk/config-resolver";
-import { FetchHttpHandler, streamCollector } from "@aws-sdk/fetch-http-handler";
+import { FetchHttpHandler as RequestHandler, streamCollector } from "@aws-sdk/fetch-http-handler";
 import { invalidProvider } from "@aws-sdk/invalid-dependency";
 import { DEFAULT_MAX_ATTEMPTS, DEFAULT_RETRY_MODE } from "@aws-sdk/middleware-retry";
 import { fromBase64, toBase64 } from "@aws-sdk/util-base64-browser";
@@ -12,16 +12,21 @@ import { defaultUserAgent } from "@aws-sdk/util-user-agent-browser";
 import { fromUtf8, toUtf8 } from "@aws-sdk/util-utf8-browser";
 import { AccountClientConfig } from "./AccountClient";
 import { getRuntimeConfig as getSharedRuntimeConfig } from "./runtimeConfig.shared";
+import { loadConfigsForDefaultMode } from "@aws-sdk/smithy-client";
+import { resolveDefaultsModeConfig } from "@aws-sdk/util-defaults-mode-browser";
 
 /**
  * @internal
  */
 export const getRuntimeConfig = (config: AccountClientConfig) => {
+  const defaultsMode = resolveDefaultsModeConfig(config);
+  const defaultConfigProvider = () => defaultsMode().then(loadConfigsForDefaultMode);
   const clientSharedValues = getSharedRuntimeConfig(config);
   return {
     ...clientSharedValues,
     ...config,
     runtime: "browser",
+    defaultsMode,
     base64Decoder: config?.base64Decoder ?? fromBase64,
     base64Encoder: config?.base64Encoder ?? toBase64,
     bodyLengthChecker: config?.bodyLengthChecker ?? calculateBodyLength,
@@ -32,8 +37,8 @@ export const getRuntimeConfig = (config: AccountClientConfig) => {
       defaultUserAgent({ serviceId: clientSharedValues.serviceId, clientVersion: packageInfo.version }),
     maxAttempts: config?.maxAttempts ?? DEFAULT_MAX_ATTEMPTS,
     region: config?.region ?? invalidProvider("Region is missing"),
-    requestHandler: config?.requestHandler ?? new FetchHttpHandler(),
-    retryMode: config?.retryMode ?? (() => Promise.resolve(DEFAULT_RETRY_MODE)),
+    requestHandler: config?.requestHandler ?? new RequestHandler(defaultConfigProvider),
+    retryMode: config?.retryMode ?? (async () => (await defaultConfigProvider()).retryMode || DEFAULT_RETRY_MODE),
     sha256: config?.sha256 ?? Sha256,
     streamCollector: config?.streamCollector ?? streamCollector,
     useDualstackEndpoint: config?.useDualstackEndpoint ?? (() => Promise.resolve(DEFAULT_USE_DUALSTACK_ENDPOINT)),

clients/client-account/src/runtimeConfig.ts

@@ -10,25 +10,34 @@ import {
 } from "@aws-sdk/config-resolver";
 import { defaultProvider as credentialDefaultProvider } from "@aws-sdk/credential-provider-node";
 import { Hash } from "@aws-sdk/hash-node";
-import { NODE_MAX_ATTEMPT_CONFIG_OPTIONS, NODE_RETRY_MODE_CONFIG_OPTIONS } from "@aws-sdk/middleware-retry";
+import {
+  DEFAULT_RETRY_MODE,
+  NODE_MAX_ATTEMPT_CONFIG_OPTIONS,
+  NODE_RETRY_MODE_CONFIG_OPTIONS,
+} from "@aws-sdk/middleware-retry";
 import { loadConfig as loadNodeConfig } from "@aws-sdk/node-config-provider";
-import { NodeHttpHandler, streamCollector } from "@aws-sdk/node-http-handler";
+import { NodeHttpHandler as RequestHandler, streamCollector } from "@aws-sdk/node-http-handler";
 import { fromBase64, toBase64 } from "@aws-sdk/util-base64-node";
 import { calculateBodyLength } from "@aws-sdk/util-body-length-node";
 import { defaultUserAgent } from "@aws-sdk/util-user-agent-node";
 import { fromUtf8, toUtf8 } from "@aws-sdk/util-utf8-node";
 import { AccountClientConfig } from "./AccountClient";
 import { getRuntimeConfig as getSharedRuntimeConfig } from "./runtimeConfig.shared";
+import { loadConfigsForDefaultMode } from "@aws-sdk/smithy-client";
+import { resolveDefaultsModeConfig } from "@aws-sdk/util-defaults-mode-node";
 
 /**
  * @internal
  */
 export const getRuntimeConfig = (config: AccountClientConfig) => {
+  const defaultsMode = resolveDefaultsModeConfig(config);
+  const defaultConfigProvider = () => defaultsMode().then(loadConfigsForDefaultMode);
   const clientSharedValues = getSharedRuntimeConfig(config);
   return {
     ...clientSharedValues,
     ...config,
     runtime: "node",
+    defaultsMode,
     base64Decoder: config?.base64Decoder ?? fromBase64,
     base64Encoder: config?.base64Encoder ?? toBase64,
     bodyLengthChecker: config?.bodyLengthChecker ?? calculateBodyLength,
@@ -39,8 +48,13 @@ export const getRuntimeConfig = (config: AccountClientConfig) => {
       defaultUserAgent({ serviceId: clientSharedValues.serviceId, clientVersion: packageInfo.version }),
     maxAttempts: config?.maxAttempts ?? loadNodeConfig(NODE_MAX_ATTEMPT_CONFIG_OPTIONS),
     region: config?.region ?? loadNodeConfig(NODE_REGION_CONFIG_OPTIONS, NODE_REGION_CONFIG_FILE_OPTIONS),
-    requestHandler: config?.requestHandler ?? new NodeHttpHandler(),
-    retryMode: config?.retryMode ?? loadNodeConfig(NODE_RETRY_MODE_CONFIG_OPTIONS),
+    requestHandler: config?.requestHandler ?? new RequestHandler(defaultConfigProvider),
+    retryMode:
+      config?.retryMode ??
+      loadNodeConfig({
+        ...NODE_RETRY_MODE_CONFIG_OPTIONS,
+        default: async () => (await defaultConfigProvider()).retryMode || DEFAULT_RETRY_MODE,
+      }),
     sha256: config?.sha256 ?? Hash.bind(null, "sha256"),
     streamCollector: config?.streamCollector ?? streamCollector,
     useDualstackEndpoint: config?.useDualstackEndpoint ?? loadNodeConfig(NODE_USE_DUALSTACK_ENDPOINT_CONFIG_OPTIONS),

clients/client-acm-pca/package.json

@@ -42,6 +42,8 @@
     "@aws-sdk/util-base64-node": "3.46.0",
     "@aws-sdk/util-body-length-browser": "3.46.0",
     "@aws-sdk/util-body-length-node": "3.46.0",
+    "@aws-sdk/util-defaults-mode-browser": "3.0.0",
+    "@aws-sdk/util-defaults-mode-node": "3.0.0",
     "@aws-sdk/util-user-agent-browser": "3.46.0",
     "@aws-sdk/util-user-agent-node": "3.46.0",
     "@aws-sdk/util-utf8-browser": "3.46.0",

clients/client-acm-pca/src/ACMPCAClient.ts

@@ -30,6 +30,7 @@ import {
 import { HttpHandler as __HttpHandler } from "@aws-sdk/protocol-http";
 import {
   Client as __Client,
+  DefaultsMode,
   SmithyConfiguration as __SmithyConfiguration,
   SmithyResolvedConfiguration as __SmithyResolvedConfiguration,
 } from "@aws-sdk/smithy-client";
@@ -283,6 +284,11 @@ export interface ClientDefaults extends Partial<__SmithyResolvedConfiguration<__
    * @internal
    */
   defaultUserAgentProvider?: Provider<__UserAgent>;
+
+  /**
+   * The {@link DefaultsMode} that will be used to determine how certain default configuration options are resolved in the SDK.
+   */
+  defaultsMode?: DefaultsMode | Provider<DefaultsMode>;
 }
 
 type ACMPCAClientConfigType = Partial<__SmithyConfiguration<__HttpHandlerOptions>> &

clients/client-acm-pca/src/runtimeConfig.browser.ts

@@ -3,7 +3,7 @@ import packageInfo from "../package.json"; // eslint-disable-line
 
 import { Sha256 } from "@aws-crypto/sha256-browser";
 import { DEFAULT_USE_DUALSTACK_ENDPOINT, DEFAULT_USE_FIPS_ENDPOINT } from "@aws-sdk/config-resolver";
-import { FetchHttpHandler, streamCollector } from "@aws-sdk/fetch-http-handler";
+import { FetchHttpHandler as RequestHandler, streamCollector } from "@aws-sdk/fetch-http-handler";
 import { invalidProvider } from "@aws-sdk/invalid-dependency";
 import { DEFAULT_MAX_ATTEMPTS, DEFAULT_RETRY_MODE } from "@aws-sdk/middleware-retry";
 import { fromBase64, toBase64 } from "@aws-sdk/util-base64-browser";
@@ -12,16 +12,21 @@ import { defaultUserAgent } from "@aws-sdk/util-user-agent-browser";
 import { fromUtf8, toUtf8 } from "@aws-sdk/util-utf8-browser";
 import { ACMPCAClientConfig } from "./ACMPCAClient";
 import { getRuntimeConfig as getSharedRuntimeConfig } from "./runtimeConfig.shared";
+import { loadConfigsForDefaultMode } from "@aws-sdk/smithy-client";
+import { resolveDefaultsModeConfig } from "@aws-sdk/util-defaults-mode-browser";
 
 /**
  * @internal
  */
 export const getRuntimeConfig = (config: ACMPCAClientConfig) => {
+  const defaultsMode = resolveDefaultsModeConfig(config);
+  const defaultConfigProvider = () => defaultsMode().then(loadConfigsForDefaultMode);
   const clientSharedValues = getSharedRuntimeConfig(config);
   return {
     ...clientSharedValues,
     ...config,
     runtime: "browser",
+    defaultsMode,
     base64Decoder: config?.base64Decoder ?? fromBase64,
     base64Encoder: config?.base64Encoder ?? toBase64,
     bodyLengthChecker: config?.bodyLengthChecker ?? calculateBodyLength,
@@ -32,8 +37,8 @@ export const getRuntimeConfig = (config: ACMPCAClientConfig) => {
       defaultUserAgent({ serviceId: clientSharedValues.serviceId, clientVersion: packageInfo.version }),
     maxAttempts: config?.maxAttempts ?? DEFAULT_MAX_ATTEMPTS,
     region: config?.region ?? invalidProvider("Region is missing"),
-    requestHandler: config?.requestHandler ?? new FetchHttpHandler(),
-    retryMode: config?.retryMode ?? (() => Promise.resolve(DEFAULT_RETRY_MODE)),
+    requestHandler: config?.requestHandler ?? new RequestHandler(defaultConfigProvider),
+    retryMode: config?.retryMode ?? (async () => (await defaultConfigProvider()).retryMode || DEFAULT_RETRY_MODE),
     sha256: config?.sha256 ?? Sha256,
     streamCollector: config?.streamCollector ?? streamCollector,
     useDualstackEndpoint: config?.useDualstackEndpoint ?? (() => Promise.resolve(DEFAULT_USE_DUALSTACK_ENDPOINT)),

clients/client-acm-pca/src/runtimeConfig.ts

@@ -10,25 +10,34 @@ import {
 } from "@aws-sdk/config-resolver";
 import { defaultProvider as credentialDefaultProvider } from "@aws-sdk/credential-provider-node";
 import { Hash } from "@aws-sdk/hash-node";
-import { NODE_MAX_ATTEMPT_CONFIG_OPTIONS, NODE_RETRY_MODE_CONFIG_OPTIONS } from "@aws-sdk/middleware-retry";
+import {
+  DEFAULT_RETRY_MODE,
+  NODE_MAX_ATTEMPT_CONFIG_OPTIONS,
+  NODE_RETRY_MODE_CONFIG_OPTIONS,
+} from "@aws-sdk/middleware-retry";
 import { loadConfig as loadNodeConfig } from "@aws-sdk/node-config-provider";
-import { NodeHttpHandler, streamCollector } from "@aws-sdk/node-http-handler";
+import { NodeHttpHandler as RequestHandler, streamCollector } from "@aws-sdk/node-http-handler";
 import { fromBase64, toBase64 } from "@aws-sdk/util-base64-node";
 import { calculateBodyLength } from "@aws-sdk/util-body-length-node";
 import { defaultUserAgent } from "@aws-sdk/util-user-agent-node";
 import { fromUtf8, toUtf8 } from "@aws-sdk/util-utf8-node";
 import { ACMPCAClientConfig } from "./ACMPCAClient";
 import { getRuntimeConfig as getSharedRuntimeConfig } from "./runtimeConfig.shared";
+import { loadConfigsForDefaultMode } from "@aws-sdk/smithy-client";
+import { resolveDefaultsModeConfig } from "@aws-sdk/util-defaults-mode-node";
 
 /**
  * @internal
  */
 export const getRuntimeConfig = (config: ACMPCAClientConfig) => {
+  const defaultsMode = resolveDefaultsModeConfig(config);
+  const defaultConfigProvider = () => defaultsMode().then(loadConfigsForDefaultMode);
   const clientSharedValues = getSharedRuntimeConfig(config);
   return {
     ...clientSharedValues,
     ...config,
     runtime: "node",
+    defaultsMode,
     base64Decoder: config?.base64Decoder ?? fromBase64,
     base64Encoder: config?.base64Encoder ?? toBase64,
     bodyLengthChecker: config?.bodyLengthChecker ?? calculateBodyLength,
@@ -39,8 +48,13 @@ export const getRuntimeConfig = (config: ACMPCAClientConfig) => {
       defaultUserAgent({ serviceId: clientSharedValues.serviceId, clientVersion: packageInfo.version }),
     maxAttempts: config?.maxAttempts ?? loadNodeConfig(NODE_MAX_ATTEMPT_CONFIG_OPTIONS),
     region: config?.region ?? loadNodeConfig(NODE_REGION_CONFIG_OPTIONS, NODE_REGION_CONFIG_FILE_OPTIONS),
-    requestHandler: config?.requestHandler ?? new NodeHttpHandler(),
-    retryMode: config?.retryMode ?? loadNodeConfig(NODE_RETRY_MODE_CONFIG_OPTIONS),
+    requestHandler: config?.requestHandler ?? new RequestHandler(defaultConfigProvider),
+    retryMode:
+      config?.retryMode ??
+      loadNodeConfig({
+        ...NODE_RETRY_MODE_CONFIG_OPTIONS,
+        default: async () => (await defaultConfigProvider()).retryMode || DEFAULT_RETRY_MODE,
+      }),
     sha256: config?.sha256 ?? Hash.bind(null, "sha256"),
     streamCollector: config?.streamCollector ?? streamCollector,
     useDualstackEndpoint: config?.useDualstackEndpoint ?? loadNodeConfig(NODE_USE_DUALSTACK_ENDPOINT_CONFIG_OPTIONS),