circleci get all projects API

[futugyou]

Description

v2api does not have get all projects, v1 has get all followed projects url.

The document states that the 'followed' field indicates whether it is followed. The actual call found that the field name is 'following', but the value is always false

[rosieyohannan]

Thanks for this! I am checking with engineering and I will update the docs as needed.