Enhance SEA HTTP Client

[varun-edachali-dbx]

What type of PR is this?

• Feature

Description

Enhance the current, simplified SEA Http Client by introducing retries. Most of the auth related functionality is pulled from the Thrift backend. All of the retry-related tests are expected to pass since they represent user-facing functionality (in terms of exceptions to be thrown in particular cases).

We continue using a low-level connection pool instead of using the higher level requests module because the latter does not have first-class support for passing a password to a client certificate, which we want to support. There are workarounds involving subclassing the HttpAdapter and invoking init_poolmanager, but the docstring of the method states that it should not be invoked from client code, so we do not consider it a long term solution.

The exceptions thrown by the SEA and Thrift backends are not completely the same (yet), because this PR passes None to the context and session id of the RequestError object. This misparity will be logged and addressed later.

How is this tested?

• Unit tests
• E2E Tests
• Manually
• N/A

Related Tickets & Documents

Design Doc

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