@aws-amplify/core
Version:
Core category of aws-amplify
29 lines (27 loc) • 1.39 kB
JavaScript
;
// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
Object.defineProperty(exports, "__esModule", { value: true });
exports.amzSdkInvocationIdHeaderMiddlewareFactory = void 0;
const libraryUtils_1 = require("../../../libraryUtils");
const constants_1 = require("./constants");
/**
* Middleware injects a UUID string to `amz-sdk-invocation-id` header.
* if the header is not set already. This header is helpful to provide
* observability to group the requests caused by automatic retry.
*
* This middleware is standalone because of extra UUID dependency, we will
* NOT use this middleware for API categories.
*
* Ref: https://sdk.amazonaws.com/kotlin/api/smithy-kotlin/api/1.0.9/http-client/aws.smithy.kotlin.runtime.http.operation/-http-operation-context/-sdk-invocation-id.html
*/
const amzSdkInvocationIdHeaderMiddlewareFactory = () => next => {
return async function amzSdkInvocationIdHeaderMiddleware(request) {
if (!request.headers[constants_1.AMZ_SDK_INVOCATION_ID_HEADER]) {
request.headers[constants_1.AMZ_SDK_INVOCATION_ID_HEADER] = (0, libraryUtils_1.amplifyUuid)();
}
return next(request);
};
};
exports.amzSdkInvocationIdHeaderMiddlewareFactory = amzSdkInvocationIdHeaderMiddlewareFactory;
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