How to cURL post with JSON parameters?

Question

I'm not sure if this is possible, but i am trying to curl a post, but with a json as the parameters, like such:

curl -X POST 'https://myserver/action?params={"field1":"something","whatever":10,"description":"body","id":"random","__oh__":{"session":"12345678jhgfdrtyui"}}'

however, i keep getting some error curl: (3) [globbing] nested braces not supported at pos X

how do i do this?

Solution 1

The curl error is due to braces {} and square brackets [] being special curl globbing characters. Use the -g option to turn off globbing and you should be fine.

Same issue as this post: How to PUT a json object with an array using curl

Solution 2

There two ways to approach this.

1. Ensure that your JSON is properly escaped so that it can be sent as a parameter.
2. Set the HTTP header to accept json.

For example:

curl -X POST -H "Content-Type: application/json" \
--data '{"field1":"something","whatever":10,"description":"body","id":"random","__oh__":{"session":"12345678jhgfdrtyui"}}' \
https://example.com/action