feat: Add header based session management logic (#81)

* feat: Add logic to allow using headers instead of cookies (#74)

* Make changes for fetch

* Make changes for axios

* Changes to test

* Changes to test

* Changes to test

* Fix config tests

* Fix config tests

* Refactor

* Fix fetch tests

* Fix general error tests

* Update axios tests

* Update axios tests

* Fic for axios

* Fic for axios

* Fixes

* Fix header logic

* Add axios 2 header tests

* Fix issue with axios

* Fix issue with axios

* Fix issue with axios

* Fix issue with axios

* Add header tests for fetch

* Add header checks for config tests

* Make header the default mechanism

* Update tests

* Update based on PR review

* Update tests

* Add function to get access token

* Add tests to make sure older sessions still work

* Refactor

* Refactor

* Refactor

* Refactor

* Add axios tests

* chore: Modify header based auth logic based on reviews (#79)

* Add function to get access token

* Add tests to make sure older sessions still work

* Refactor

* Refactor

* Refactor

* Refactor

* Add axios tests

* Add additional tests for fetch

* Add additional tests for axios

* Add tests

* Export getAccessToken as a default export

* Handle cookie strings for legacy sessions when reading tokens from storage

* Add test for moving from old cookies to header

* Update FDI, CHANGELOG and package versio

* Refactor

Author: nkshah2

CHANGELOG.md

@@ -6,6 +6,23 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [unreleased]
 
+## [4.0.0] - 2023-01-30
+
+### Breaking Changes
+
+- The SDK now only supports FDI version 1.16
+- The backend SDK should be updated to a version supporting the header-based sessions!
+    -   supertokens-node: >= 13.0.0
+    -   supertokens-python: >= 0.12.0
+    -   supertokens-golang: >= 0.10.0
+- Properties passed when calling SuperTokens.init have been renamed:
+    - `cookieDomain` -> `sessionTokenBackendDomain`
+
+### Added
+
+- The SDK now supports managing sessions via headers (using `Authorization` bearer tokens) instead of cookies
+- A new property has been added when calling SuperTokens.init: `tokenTransferMethod`. This can be used to configure whether the SDK should use cookies or headers for session management (`header` by default). Refer to https://supertokens.com/docs/thirdpartyemailpassword/common-customizations/sessions/token-transfer-method for more information
+
 ## [3.2.0] - 2022-09-17
 
 ### Changes