How to read response from mutation in javascript client?

[selmeci]

Hi,

I’m try to use official javascript client for dGraph.

How can I read response data from mutation? I would like to read assigned uids for new nodes.

Thank you.

[sboorlagadda (Sai Boorlagadda)]

Assuming you are using gRPC.

const serialized = new Uint8Array(new Buffer(json));
const mu = new dgraph.Mutation();
mu.setSetJson(serialized);
return txn.mutate(mu).then((res) => {
    txn.commit();
    console.log(res.getUidsMap().get("blank-0")) . => Like so you can retrieve the UIDs returned from a mutation.
    return;
}).catch((e) => {
    console.log(e);
    return txn.discard();
});