fix: skip checksum if input[requestAlgorithmMember] is not set

Author: trivikr

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

@@ -39,6 +39,22 @@ describe(getChecksumAlgorithmForRequest.name, () => {
     });
   });
 
+  describe("returns undefined if input[requestAlgorithmMember] is not set", () => {
+    describe.each([true, false])("when requestChecksumRequired='%s'", (requestChecksumRequired) => {
+      it.each([RequestChecksumCalculation.WHEN_SUPPORTED, RequestChecksumCalculation.WHEN_REQUIRED])(
+        "when requestChecksumCalculation='%s'",
+        (requestChecksumCalculation) => {
+          const mockOptions = {
+            requestChecksumRequired,
+            requestChecksumCalculation,
+            requestAlgorithmMember: mockRequestAlgorithmMember,
+          };
+          expect(getChecksumAlgorithmForRequest({}, mockOptions)).toBeUndefined();
+        }
+      );
+    });
+  });
+
   it("throws error if input[requestAlgorithmMember] if not supported by client", () => {
     const unsupportedAlgo = "unsupportedAlgo";
     const mockInput = { [mockRequestAlgorithmMember]: unsupportedAlgo };

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

@@ -36,6 +36,10 @@ export const getChecksumAlgorithmForRequest = (
       : undefined;
   }
 
+  if (!input[requestAlgorithmMember]) {
+    return undefined;
+  }
+
   const checksumAlgorithm = input[requestAlgorithmMember];
   // Validate that at least one algorithm from customer preference is supported by the SDK.
   if (!CLIENT_SUPPORTED_ALGORITHMS.includes(checksumAlgorithm)) {