Wait for an HTTP endpoint to return 200 OK with Bash and curl

wait_for_http_200.sh

bash -c 'while [[ "$(curl -s -o /dev/null -w ''%{http_code}'' localhost:9000)" != "200" ]]; do sleep 5; done'

# also check https://gist.github.com/rgl/c2ba64b7e2a5a04d1eb65983995dce76

Thanks! Hope someone could make it to be a github action.

There is https://github.com/nev7n/wait_for_response, however, that doesn't support all the options available in curl.

Hi all,

Here a solution that worked to me. In my case I used it for an initContainer:

sh -c 'while (( curl -s -o /dev/null -w %{http_code} https://google.com/ != "200" && curl -s -o /dev/null -w %{http_code} https://google.com/ != "301")); do sleep 1; done;'

Thanks!
I forked your version and extended it to a script that can be used right away. We use it in the CI to wait for services until they are available.

https://gist.github.com/eisenreich/195ab1f05715ec86e300f75d007d711c

There is https://github.com/nev7n/wait_for_response, however, that doesn't support all the options available in curl.

Thank you that looks neat

this is wonderful thanks for posting this

The following works in Alpine Linux/ash

until [ "$(curl -s -o /dev/null -w "%{http_code}" http://host:port/path)" = "200" ]; do sleep 1; done;