Few librairies are not published in esmodule

[superCarton]

Describe the bug
When building a typescript application with a dependency on aws-amplify v3, there is a runtime exception when the library is calling a function on @aws-sdk/credential-provider-cognito-identity package.
It happened after a migration from aws-amplify v2 to v3.

Is the issue in the browser/Node.js/ReactNative?
Browser

To Reproduce (observed behavior)
Typescript application compiling with es module. A simple login will call a function on @aws-sdk/credential-provider-cognito-identity that will throw a "Object(...) is not a function" exception.

Expected behavior
The ES module should be published on NPM. Today, only the CJS module is published. This is weird because a quick inspection of the package.json of @aws-sdk/credential-provider-cognito-identity shows that the build in ES is planned, it is probably ignored during the package publishing.

[trivikr]

Amplify v3 still depends on gamma.4 version of SDK https://github.com/aws-amplify/amplify-js/search?q=aws-sdk+filename%3Apackage.json&unscoped_q=aws-sdk+filename%3Apackage.json

ESM version of @aws-sdk/credential-provider-cognito-identity was published in 1.0.0-gamma.6, and can be verified as follows:

$ yarn add @aws-sdk/credential-provider-cognito-identity@1.0.0-gamma.6
...
$ ls node_modules/@aws-sdk/credential-provider-cognito-identity/dist/ 
cjs	es

[trivikr]

The latest JS SDK v3 version is v1.0.0-gamma.7

@superCarton Are there specific modules which are missing ESM versions in gamma.7?

[superCarton]

@trivikr actually v1.0.0-gamma.4 does not contain ESM but v1.0.0-gamma.6 does
$ yarn add @aws-sdk/credential-provider-cognito-identity@1.0.0-gamma.4 $ ls node_modules/@aws-sdk/credential-provider-cognito-identity/dist cjs

[trivikr]

actually v1.0.0-gamma.4 does not contain ESM but v1.0.0-gamma.6 does

Yup. As explained in the previous comments, AWS Amplify v3 needs to update to v1.0.0-gamma.6 or above.
Do you want to create an issue with their repo at https://github.com/aws-amplify/amplify-js?

[superCarton]

Issue opened on amplify-js to bump the aws-sdk packages. Thanks @trivikr for you help!

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