Using curl commands to test basic THETA WebAPI commands

@craig The output of getLivePreview is a stream of characters.

I run the command:

jcasman@MacBook-Air-5 ~ %

curl -X POST \

--header "Content-Type: application/json" \

--data '{"name": "camera.getLivePreview"}' \

http://192.168.1.1/osc/commands/execute

I get a warning

Warning: Binary output can mess up your terminal. Use "--output -" to tell 
Warning: curl to output it to your terminal anyway, or consider "--output 
Warning: <FILE>" to save to a file.

I add the output option and create a file called livestream.txt

jcasman@MacBook-Air-5 ~ %

curl --output livestream.txt -X POST \

--header "Content-Type: application/json" \

--data '{"name": "camera.getLivePreview"}' \

http://192.168.1.1/osc/commands/execute

I see this in the terminal, and it’s counting up quickly

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 5808k    0 5808k  100    33   394k      2  0:00:16  0:00:14  0:00:02  418k^C

I have a file now called livestream.txt, which contains the output.