How to use jq when the variable has special characters

Question

I\'m trying to get the following to work & it\'s not, help me please:

curl -s \'https://cryptofresh.com/api/asset/markets?asset=MKR\' | jq .OPEN.BTC


        

Answer 1

When a key contains characters that are invalid for identifiers, you'll have to quote the name.

."OPEN.BTC"

Or for older versions of jq, use an index.

.["OPEN.BTC"]

Answer 2

Another answer didn't work for me but the comment written by @jeff-mercado worked for me. So, adding it as an answer here.

If your key has dots like "OPEN.BTC" then your jq command should be

curl -s 'https://cryptofresh.com/api/asset/markets?asset=MKR' | jq '."OPEN.BTC"'

Put the key first in double quotes and then escape the first dot by wrapping it using single quotes.