Using jq with bash to run command for each object in array

Question

How can I run a Bash command for every JSON object in a JSON array using jq? So far I have this:

cat credentials.json | jq -r \'.[] | .user, .date, .         


        

Answer 1

With xargs:

curl localhost:8082/connectors | jq .[] | xargs -L1 -I'{}' curl -XDELETE 'localhost:8082/connectors/{}' 

Or equivalently, to show the output of that first curl:

echo '["quickstart-file-sink4","quickstart-file-source","quickstart-file-sink","quickstart-file-sink2","quickstart-file-sink3","quickstart-file-source2"]' | jq .[] | xargs -L1 -I'{}' curl -XDELETE 'localhost:8082/connectors/{}' 

jq .[] strips off one level of containment, so that a list becomes output as one line per item.

xargs -L1 processes one line at a time

xargs -I'{}' specifies that the string {} be replaced with the input line when invoking the following command.

xargs is essentially a map operator for the shell.