Example of using curl in Windows (powershell). In this case it is actually shorthand for Invoke-RestMethod which differs a bit from curl on Linux

curlinwindows

curl -Method POST -Uri <url> -ContentType 'application/json' -Body '{"content": "Whatever you want to put in here"}' -UseBasicParsing

-UseBasicParsing 
Prints output directly to console and prevents the requirement for having to set up Internet Explorer in Windows 10

See https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/invoke-restmethod?view=powershell-6 for more details.