post https://example.com/v1/updateForm
Update the details of the specified form
POST /api/v1/updateForm HTTP/1.1
Host: www.formstack.com
api_key=[[app:api_key]]&id=12345&name=Contact+Us&use_ssl=1&fields%5B0%5D%5Blabel%5D=Name&fields%5B0%5D%5Btype%5D=name&fields%5B0%5D%5Brequired%5D=1&fields%5B1%5D%5Blabel%5D=Email&fields%5B1%5D%5Btype%5D=email&fields%5B1%5D%5Brequired%5D=1&fields%5B2%5D%5Blabel%5D=Home+Phone&fields%5B2%5D%5Btype%5D=phone&fields%5B3%5D%5Blabel%5D=How+did+you+hear+about+us%3F&fields%5B3%5D%5Btype%5D=checkbox&fields%5B3%5D%5Boptions%5D%5B0%5D=Newspaper&fields%5B3%5D%5Boptions%5D%5B1%5D=Commercial&fields%5B3%5D%5Boptions%5D%5B2%5D=Flyer&fields%5B4%5D%5Blabel%5D=Message&fields%5B4%5D%5Btype%5D=textarea
curl -X POST -i -d "api_key=[[app:api_key]]&id=12345&name=Contact+Us&use_ssl=1&fields%5B0%5D%5Blabel%5D=Name&fields%5B0%5D%5Btype%5D=name&fields%5B0%5D%5Brequired%5D=1&fields%5B1%5D%5Blabel%5D=Email&fields%5B1%5D%5Btype%5D=email&fields%5B1%5D%5Brequired%5D=1&fields%5B2%5D%5Blabel%5D=Home+Phone&fields%5B2%5D%5Btype%5D=phone&fields%5B3%5D%5Blabel%5D=How+did+you+hear+about+us%3F&fields%5B3%5D%5Btype%5D=checkbox&fields%5B3%5D%5Boptions%5D%5B0%5D=Newspaper&fields%5B3%5D%5Boptions%5D%5B1%5D=Commercial&fields%5B3%5D%5Boptions%5D%5B2%5D=Flyer&fields%5B4%5D%5Blabel%5D=Message&fields%5B4%5D%5Btype%5D=textarea" https://www.formstack.com/api/v1/createForm