Transaction using GQL

[spinelsun (Or Chen)]

Hi,

Do you already support transactions in GQL.
I need to send several mutations - some add new nodes and some update existing ones and if something goes wrong I want to revert all of them

[MichelDiz]

@spinelsun

Do you already support transactions in GQL.

Nope, but we have an RFC for this.

[spinelsun (Or Chen)]

I found this pull request:

graphql: adds transactions to graphql mutations

but there is no reference for it anywhere.
I searched in the release notes and the docs.

[MichelDiz]

Transactions in GraphQL

Running multiple GraphQL mutations concurrently can cause transaction abort. This post proposes a way to deal with it. Background Every GraphQL mutation starts a new transaction. A mutation is done via an upsert query, and then a request is sent to Dgraph to commit the transaction. Dgraph would then successfully commit the transaction or abort the transaction if it conflicts with any other concurrent transaction. Example: mutation { mut1(...) {...} // Transaction 1 mut2(...) {...} // T…