Initial

resources/app/node_modules/@smithy/config-resolver/dist-es/endpointsConfig/NodeUseDualstackEndpointConfigOptions.js

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+import { booleanSelector, SelectorType } from "@smithy/util-config-provider";
+export const ENV_USE_DUALSTACK_ENDPOINT = "AWS_USE_DUALSTACK_ENDPOINT";
+export const CONFIG_USE_DUALSTACK_ENDPOINT = "use_dualstack_endpoint";
+export const DEFAULT_USE_DUALSTACK_ENDPOINT = false;
+export const NODE_USE_DUALSTACK_ENDPOINT_CONFIG_OPTIONS = {
+    environmentVariableSelector: (env) => booleanSelector(env, ENV_USE_DUALSTACK_ENDPOINT, SelectorType.ENV),
+    configFileSelector: (profile) => booleanSelector(profile, CONFIG_USE_DUALSTACK_ENDPOINT, SelectorType.CONFIG),
+    default: false,
+};

resources/app/node_modules/@smithy/config-resolver/dist-es/endpointsConfig/NodeUseFipsEndpointConfigOptions.js

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+import { booleanSelector, SelectorType } from "@smithy/util-config-provider";
+export const ENV_USE_FIPS_ENDPOINT = "AWS_USE_FIPS_ENDPOINT";
+export const CONFIG_USE_FIPS_ENDPOINT = "use_fips_endpoint";
+export const DEFAULT_USE_FIPS_ENDPOINT = false;
+export const NODE_USE_FIPS_ENDPOINT_CONFIG_OPTIONS = {
+    environmentVariableSelector: (env) => booleanSelector(env, ENV_USE_FIPS_ENDPOINT, SelectorType.ENV),
+    configFileSelector: (profile) => booleanSelector(profile, CONFIG_USE_FIPS_ENDPOINT, SelectorType.CONFIG),
+    default: false,
+};

resources/app/node_modules/@smithy/config-resolver/dist-es/endpointsConfig/index.js

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+export * from "./NodeUseDualstackEndpointConfigOptions";
+export * from "./NodeUseFipsEndpointConfigOptions";
+export * from "./resolveCustomEndpointsConfig";
+export * from "./resolveEndpointsConfig";

resources/app/node_modules/@smithy/config-resolver/dist-es/endpointsConfig/resolveCustomEndpointsConfig.js

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+import { normalizeProvider } from "@smithy/util-middleware";
+export const resolveCustomEndpointsConfig = (input) => {
+    const { endpoint, urlParser } = input;
+    return {
+        ...input,
+        tls: input.tls ?? true,
+        endpoint: normalizeProvider(typeof endpoint === "string" ? urlParser(endpoint) : endpoint),
+        isCustomEndpoint: true,
+        useDualstackEndpoint: normalizeProvider(input.useDualstackEndpoint ?? false),
+    };
+};

resources/app/node_modules/@smithy/config-resolver/dist-es/endpointsConfig/resolveEndpointsConfig.js

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+import { normalizeProvider } from "@smithy/util-middleware";
+import { getEndpointFromRegion } from "./utils/getEndpointFromRegion";
+export const resolveEndpointsConfig = (input) => {
+    const useDualstackEndpoint = normalizeProvider(input.useDualstackEndpoint ?? false);
+    const { endpoint, useFipsEndpoint, urlParser } = input;
+    return {
+        ...input,
+        tls: input.tls ?? true,
+        endpoint: endpoint
+            ? normalizeProvider(typeof endpoint === "string" ? urlParser(endpoint) : endpoint)
+            : () => getEndpointFromRegion({ ...input, useDualstackEndpoint, useFipsEndpoint }),
+        isCustomEndpoint: !!endpoint,
+        useDualstackEndpoint,
+    };
+};

resources/app/node_modules/@smithy/config-resolver/dist-es/endpointsConfig/utils/getEndpointFromRegion.js

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+export const getEndpointFromRegion = async (input) => {
+    const { tls = true } = input;
+    const region = await input.region();
+    const dnsHostRegex = new RegExp(/^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]{0,61}[a-zA-Z0-9])$/);
+    if (!dnsHostRegex.test(region)) {
+        throw new Error("Invalid region in client config");
+    }
+    const useDualstackEndpoint = await input.useDualstackEndpoint();
+    const useFipsEndpoint = await input.useFipsEndpoint();
+    const { hostname } = (await input.regionInfoProvider(region, { useDualstackEndpoint, useFipsEndpoint })) ?? {};
+    if (!hostname) {
+        throw new Error("Cannot resolve hostname from client config");
+    }
+    return input.urlParser(`${tls ? "https:" : "http:"}//${hostname}`);
+};