fix: NewClient respects FAUNA_ENDPOINT environment variable

[cynicaljoy]

Description

Updated fauna.NewClient to respect the FAUNA_ENDPOINT environment variable.

Motivation and context

We should be consistent with our support of the environment variables.

How was the change tested?

Included a test

Screenshots (if appropriate):

Change types

• • Bug fix (non-breaking change that fixes an issue)
• • New feature (non-breaking change that adds functionality)
• • Breaking change (backwards-incompatible fix or feature)

Checklist:

• • My code follows the code style of this project.
• • My change requires a change to Fauna documentation.
• • My change requires a change to the README, and I have updated it accordingly.

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[pnwpedro]

Approved, but is the only way to set the endpoint the env var? That seems like a miss to me. We should be able to set the endpoint via a config function on NewClient() as well.

[cynicaljoy]

Approved, but is the only way to set the endpoint the env var? That seems like a miss to me. We should be able to set the endpoint via a config function on NewClient() as well.

No, you can specify the endpoint using the config options functions variadic.