fix(storage): md5 calculation for react native

[ashwinkumar6]

Description of changes

upload with data as ArrayBuffer or ArrayBufferView when objectLock is enabled in react native gives creating blobs from 'arraybuffer' and 'arraybufferview' are not supported error in react native.

PENDING: updating e2e tests for web and RN. Can come in separate PR

repro steps:

Amplify.configure(aws_outputs, {
  Storage: {
    S3: {
      isObjectLockEnabled: true,
    },
  },
});

await uploadData({
  key: 'public/filename',
  data: new ArrayBuffer(16),
}).result;

Description of how you validated changes

Enabled object lock for bucket manually in backend. upload data of types Blob, string, ArrayBuffer and ArrayBufferView in both browser and react native to test if object is successfully uploaded

Tested code snippets below in browser and RN

• string

await upload({
  key: "string",
  data: "test",
}).result;

• blob

await upload({
  key: "blob",
  data: new Blob(["test"]),
}).result;

• arrayBuffer

await upload({
  key: "arrayBuffer",
  data: new ArrayBuffer(16),
}).result;

• arrayBufferView

const arrayBufferView: ArrayBufferView = new Float32Array(
  new ArrayBuffer(16)
);    
await upload({
  key: "arrayBufferView",
  data: arrayBufferView,
}).result;

Checklist

• PR description included
• yarn test passes
• Unit Tests are changed or added
• Relevant documentation is changed or added (and PR referenced)

Checklist for repo maintainers

• Verify E2E tests for existing workflows are working as expected or add E2E tests for newly added workflows
• New source file paths included in this PR have been added to CODEOWNERS, if appropriate

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[ashwinkumar6]

Blob([arrayBuffer]) and Blob([arrayBufferView]) works in web but not RN. This can be removed for both platforms

[Samaritan1011001]

Removed for both platforms?

[ashwinkumar6]

Yep, since it's un-necessary code removing it from both web and RN

[Samaritan1011001]

Why take this test out?

[ashwinkumar6]

Just refactored the test. we're testing all 4 data input types in unit tests,

[Samaritan1011001]

same here

[ashwinkumar6]

replied on this comment

[Samaritan1011001]

Removed for both platforms?

[Samaritan1011001]

IF this works for web then why remove it?

[ashwinkumar6]

Yep, since it's un-necessary code at this point removing it from both web and RN