NOTE: this readme needs some work.
ArangoDB database adapter for k-sync (which is a fork of k-sync). This driver can be used both as a snapshot store and oplog.
Snapshots are stored where you'd expect (the named collection with _id=id). In
addition, operations are stored in ops_COLLECTION
. For example, if you have
a users
collection, the operations are stored in ops_users
.
JSON document snapshots in k-sync-arango are unwrapped so you can use arango
queries directly against JSON documents. (They just have some extra fields in
the form of _v
and _type
). It is safe to query documents directly with the
ArangoDB driver or command line. Any read only arango features, including find,
aggregate, and map reduce are safe to perform concurrent with k-sync.
However, you must always use k-sync to edit documents. Never use the ArangoDB driver or command line to directly modify any documents that k-sync might create or edit. k-sync must be used to properly persist operations together with snapshots.
var SyncArango = require('k-livedb-arango')('http://root:@localhost:8529/test');
var backend = require('k-client').createBackend({ db: SyncArango });
arango errors are passed back directly. Additional error codes:
- 4101 -- Invalid op version
- 4102 -- Invalid collection name
- 4103 -- $where queries disabled
- 4104 -- $mapReduce queries disabled
- 4105 -- $aggregate queries disabled
- 5101 -- Already closed
- 5102 -- Snapshot missing last operation field
- 5103 -- Missing ops from requested version
Copyright (c) 2015 by Joseph Gentle and Nate Smith
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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