API Access in Docker v4.2.0

[Bridger Dyson-Smith]

Hi all -

I'm curious if there's something specific that needs to be modified in
the configuration to access the admin API (based on the docs,
localhost:8089?). When I try to use curl to talk with it, I'm getting
a 'connection refused' error message.

curl -vvv -s -F password="admin" "http://localhost:8089/users/admin/login"
15:34:54.781124 [0-x] * [READ] client_reset, clear readers
15:34:54.781166 [0-0] * [SETUP] added
15:34:54.781189 [0-0] * Host localhost:8089 was resolved.
15:34:54.781223 [0-0] * IPv6: ::1
15:34:54.781247 [0-0] * IPv4: 127.0.0.1
15:34:54.781298 [0-0] * Trying [::1]:8089...
15:34:54.781423 [0-0] * connect to ::1 port 8089 from ::1 port 36804
failed: Connection refused
15:34:54.781464 [0-0] * Trying 127.0.0.1:8089...
15:34:54.781540 [0-0] * connect to 127.0.0.1 port 8089 from 127.0.0.1
port 56182 failed: Connection refused
15:34:54.781626 [0-0] * Failed to connect to localhost port 8089 after
0 ms: Could not connect to server
15:34:54.781716 [0-0] * [WRITE] [OUT] done
15:34:54.781754 [0-0] * closing connection #0

Any suggestions or thoughts for what to try?
Thanks in advance for your help.
Best,
Bridger