how do I use promised key value storage in ArangoDB? I want to store Google Certificates in ArangoDB in most effective way or better - most convenient way, which would be associative array resp. key-value. But i can not find anything about it in database.
Solutions I came up with are to make one document which would be wtorage for all keys and I'd acces it like db.Certificates.document('certificates')[hash] and second is to store documents like db.Certificates.insert({'_key': hash, 'value': '.... google certificate ....'}) which would I access as db.Certificates.document(hash).value
I don't like those solutions since they don't seem right, values are one level deeper as I'd expect from key-value storage. Or is there any faster way to store certificates? Maybe somehow in RAM instead of db storage? I need them to be accessible across all callings of my foxx application and change them when they expire. Thanks.
If you don't need the data to be persistent, you can use a volatile collection instead. Volatile collections will never be synced to disk so documents (but not the collection itself) will be lost between restarts -- but they are quite a bit faster because the data only lives in RAM.
You can create a volatile collection like a regular collection by passing the isVolatile option:
var db = require('org/arangodb').db;
var volatileCollection = db._create('temp', {isVolatile: true});
You can find more information in the chapter on creating collections: https://docs.arangodb.com/3.11/develop/javascript-api/@arangodb/db-object/#db_createcollection-name--properties--type--options