I can't translate a terminal command to System.cmd/3

[al2o3cr]

As noted in this thread from last week:

Can't properly format CURL parameters with `System.cmd/2`

Hi guys ! I need to run a one-time HTTP query in one of my projects, it needs to include a PEM certificate and since I was not able to find any documentation on how to do it with either hackney or mint, I decided to do it using System.cmd/2. The valid CURL command looks like this: curl --request POST \ --url https://xxxx \ --cert ./certdir/cert.pem \ --key ./certdir/cert-key.pem \ --verbose -H "Content-Type: application/json" \ -d '{"merchantIdentifier": "xxx", "domainName":"xxx","displayName…

~w() will not do what you want if arguments have spaces in them:

~w(-H "Content-Type: application/json")

is a list with three elements:

["-H", "\"Content-Type:", "application/json\""]