A request to the transaction web service to perform some action. An operation to begin a transaction; if this operation succeeds then the dgraph will enter transaction mode. In transaction mode, queries and updates that do not have the transaction ID will be rejected and updates applied within the transaction will not propagate across a cluster. An operation to end a transaction; if a transaction of the given id is in progress then if the operation succeeds the dgraph will exit transaction mode. The dgraph will once again accept unqualified queries and any updates applied during the transaction will be pushed out across the cluster. A response to a request indicating the requested action's outcome. The response returned on successful transaction start. The response returned on successful transaction commit. A fault that occurred during processing of a request. A request to the transaction web service. A response to a successful transaction web service request. A fault thrown by an unsuccessful request to the transaction web service.

A web service for transaction control of the mdex.