Invalid json request (1)

1

I am new to infura and trying to get the response but getting error.
this is the piece of code im trying :
curl -X POST --data ‘{“jsonrpc”:“2.0”,“method”:“web3_clientVersion”,“params”:[],“id”:1}’ https://mainnet.infura.io/v3/

error : {“jsonrpc”:“2.0”,“error”:{“code”:-32600,“message”:“invalid json request”}}

2

Welcome to our community site, we are happy to have you here! Please take a look at the following curl command from our documentation. Make sure to replace the url with your own project URL. I’m just tested it and verified that this example works.

 curl https://mainnet.infura.io/v3/YOUR-PROJECT-ID\
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"web3_clientVersion","params": [],"id":1}'