fixmiddleware-flexible-checksums): use object for requestAlgorithmMember

Author: trivikr

packages/middleware-flexible-checksums/src/flexibleChecksumsMiddleware.spec.ts

@@ -108,8 +108,10 @@ describe(flexibleChecksumsMiddleware.name, () => {
       describe("input[requestAlgorithmMember] is not defined and", () => {
         const mockMwConfigWithReqAlgoMember = {
           ...mockMiddlewareConfig,
-          requestAlgorithmMember: mockRequestAlgorithmMember,
-          requestAlgorithmMemberHttpHeader: mockRequestAlgorithmMemberHttpHeader,
+          requestAlgorithmMember: {
+            name: mockRequestAlgorithmMember,
+            httpHeader: mockRequestAlgorithmMemberHttpHeader,
+          },
         };
 
         it("requestChecksumCalculation is supported", async () => {

packages/middleware-flexible-checksums/src/flexibleChecksumsMiddleware.ts

@@ -72,15 +72,17 @@ export const flexibleChecksumsMiddleware =
     const { request, input } = args;
     const { body: requestBody, headers } = request;
     const { base64Encoder, streamHasher } = config;
-    const { requestChecksumRequired, requestAlgorithmMember, requestAlgorithmMemberHttpHeader } = middlewareConfig;
+    const { requestChecksumRequired, requestAlgorithmMember } = middlewareConfig;
     const requestChecksumCalculation = await config.requestChecksumCalculation();
 
+    const requestAlgorithmMemberName = requestAlgorithmMember?.name;
+    const requestAlgorithmMemberHttpHeader = requestAlgorithmMember?.httpHeader;
     // The value for input member to configure flexible checksum is not set.
-    if (requestAlgorithmMember && !input[requestAlgorithmMember]) {
+    if (requestAlgorithmMemberName && !input[requestAlgorithmMemberName]) {
       // Set requestAlgorithmMember as default checksum algorithm only if request checksum calculation is supported
       // or request checksum is required.
       if (requestChecksumCalculation === RequestChecksumCalculation.WHEN_SUPPORTED || requestChecksumRequired) {
-        input[requestAlgorithmMember] = DEFAULT_CHECKSUM_ALGORITHM;
+        input[requestAlgorithmMemberName] = DEFAULT_CHECKSUM_ALGORITHM;
         if (requestAlgorithmMemberHttpHeader) {
           headers[requestAlgorithmMemberHttpHeader] = DEFAULT_CHECKSUM_ALGORITHM;
         }