Populates UserRecord with multi-factor related info#681

Merged

bojeil-google merged 4 commits intoauth-mfafrom

Oct 24, 2019

Commits on Oct 21, 2019

Updates UserRecord to parse multi-factor related information from the GetAccountInfo server response.
bojeil-google
committed
Cleans up comments.
bojeil-google
committed

Commits on Oct 23, 2019

Addresses review comments.
bojeil-google
committed

Commits on Oct 24, 2019

Adds response validation before getting factor ID.
bojeil-google
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