Filter items either or in directus

I'm playing around with Directus and wanted to filter my items. I would like to receive all messages that either I am as sender or I am as receiver.

my get / messages looks like this

[
    {
        "content": "Hey!",
        "id": "1",
        "receiver": "1",
        "sender": "2"
    },
    {
        "content": "hello",
        "id": "2",
        "receiver": "2",
        "sender": "1"
    }
]

My backend request url looks like this

/items/messages?filter[sender]=${user_id}&filter[receiver]=${user_id}

But it is not working :( so please help me to get it done!

Try this:

/items/messages?filter={"_or":[{"sender":{"_eq": "id"}},{"receiver":{"_eq":"id"}}]}

Expanded version:

"_or": [
    {
        "sender": {
            "_eq": "id"
        }
    },
    {
        "reveiver": {
            "_eq": "id"
        }
    }
]

Visit the official docs to read more about filtering rules and logical operators.