How to remove relatioships?

Users GraphQL
1

Hi, I can’t seem to figure out how to remove a relationship.

I have a very simple schema:

type User {
  id: ID!
  email: String! @id
  following: [User] @hasInverse(field: "followers")
  followers: [User] @hasInverse(field: "following")
}

and a GQL operations:

mutation followUser($id: ID!, $followUserId: ID!) {
  updateUser(
    input: { filter: { id: [$id] }, set: { following: { id: $followUserId } } }
  ) {
    user {
      ...UserFields
    }
  }
}

mutation unfollowUser($id: ID!, $followUserId: ID!) {
  # ?
}

I can’t for the life of me figure out how to remove a relation. All relation operations seem to be additive.

Any suggestions?

2

Take a look at https://dgraph.io/docs/mutations/json-mutation-format/#deleting-edges on how to delete edges.
You need to use a delete mutation. Specifically you’d use deletejson
Also take a look at https://github.com/dgraph-io/dgraph/blob/master/graphql/resolve/delete_mutation_test.yaml for more examples.

3

Is there no way to do this via GraphQL and not DQL?

4

You can use the remove mtuation. Just use the remove keyword instead of set in your example and it’ll remove the edge you created with set.

Hope this helps.

1 Like
5

Exactly what I was looking for, thanks!