50 lines
1.9 KiB
JavaScript
50 lines
1.9 KiB
JavaScript
import { setFeature } from "@aws-sdk/core";
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const ACCOUNT_ID_ENDPOINT_REGEX = /\d{12}\.ddb/;
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export async function checkFeatures(context, config, args) {
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const request = args.request;
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if (request?.headers?.["smithy-protocol"] === "rpc-v2-cbor") {
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setFeature(context, "PROTOCOL_RPC_V2_CBOR", "M");
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}
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if (typeof config.retryStrategy === "function") {
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const retryStrategy = await config.retryStrategy();
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if (typeof retryStrategy.acquireInitialRetryToken === "function") {
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if (retryStrategy.constructor?.name?.includes("Adaptive")) {
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setFeature(context, "RETRY_MODE_ADAPTIVE", "F");
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}
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else {
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setFeature(context, "RETRY_MODE_STANDARD", "E");
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}
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}
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else {
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setFeature(context, "RETRY_MODE_LEGACY", "D");
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}
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}
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if (typeof config.accountIdEndpointMode === "function") {
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const endpointV2 = context.endpointV2;
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if (String(endpointV2?.url?.hostname).match(ACCOUNT_ID_ENDPOINT_REGEX)) {
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setFeature(context, "ACCOUNT_ID_ENDPOINT", "O");
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}
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switch (await config.accountIdEndpointMode?.()) {
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case "disabled":
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setFeature(context, "ACCOUNT_ID_MODE_DISABLED", "Q");
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break;
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case "preferred":
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setFeature(context, "ACCOUNT_ID_MODE_PREFERRED", "P");
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break;
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case "required":
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setFeature(context, "ACCOUNT_ID_MODE_REQUIRED", "R");
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break;
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}
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}
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const identity = context.__smithy_context?.selectedHttpAuthScheme?.identity;
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if (identity?.$source) {
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const credentials = identity;
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if (credentials.accountId) {
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setFeature(context, "RESOLVED_ACCOUNT_ID", "T");
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}
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for (const [key, value] of Object.entries(credentials.$source ?? {})) {
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setFeature(context, key, value);
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}
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}
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}
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