Infura tutorial no longer accurate, how to get the initial curl HTTPS POST to work?

Question

Following the guide at https://blog.infura.io/getting-started-with-infura-28e41844cc89, step 2 after registering is to send a HTTPS POST using curl. The command is

curl -X POST --data '{"jsonrpc":"2.0","method":"web3_clientVersion","params":[],"id":1}' https://mainnet.infura.io/MYAPIKEY

But when I try this (with my actual API key in place in the url) I get an error

Invoke-WebRequest : A parameter cannot be found that matches parameter name 'X'.
At line:1 char:6
+ curl -X POST --data '{"jsonrpc":"2.0","method":"web3_clientVersion"," ...
+      ~~
+ CategoryInfo          : InvalidArgument: (:) [Invoke-WebRequest], ParameterBindingException
+ FullyQualifiedErrorId : NamedParameterNotFound,Microsoft.PowerShell.Commands.InvokeWebRequestCommand

I am using windows 10 powershell and have downloaded curl-7.60.0-win64-mingw, which I ran by running the curl.exe in the bin folder.

According to another answer on stackoverflow that recommended using the command

Remove-item alias:curl 

on windows 10 to avoid that specific Invoke-WebRequest error, and then running the curl command. When I do this I get no error, but nothing happens. There is no JSON returned with the Client and version, like the tutorial says their should be.

How do I get this to work? I can't follow the tutorial with these problems.

Thanks to anyone that can help.

Answer 1

just run on my shell, it return correct result.

    $ curl -X POST --data '{"jsonrpc":"2.0","method":"web3_clientVersion","params":[],"id":1}' https://mainnet.infura.io
{"jsonrpc":"2.0","id":1,"result":"Geth/v1.8.15-omnibus-255989da/linux-amd64/go1.10.1"}

Answer 2

The code is OK, but infura must have overspent on designing the frontend to their site because symbols for the CLI have been replaced with prettier ones!

” should be "

‘ should be '

— should be --