How to know all the collections of a database in mongodb using contrib-mongodb

General
1

I am trying to query all the collections of a database in mongo to later search for data in each of the collections, someone knows how I can get all the collections using node-contrib-mongodb.

2

Hi,

It seems that node-contrib-mongodb can not do this because the only operations it supports,
are the ones in the image below

1

I tested node-red-contrib-mongodb3 though and it has a db.listCollections.toArray operation

test flow with mongodb3 below ( .. change node configuation to your db)

[
    {
        "id": "fe4fd1e2.2d51d",
        "type": "mongodb3 in",
        "z": "7d61deaf.f0703",
        "service": "_ext_",
        "configNode": "83016113.f363e",
        "name": "",
        "collection": "",
        "operation": "db.listCollections.toArray",
        "x": 800,
        "y": 680,
        "wires": [
            [
                "da9d3526.06dcd"
            ]
        ]
    },
    {
        "id": "da9d3526.06dcd",
        "type": "debug",
        "z": "7d61deaf.f0703",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 1190,
        "y": 680,
        "wires": []
    },
    {
        "id": "c4c3b190.a06918",
        "type": "inject",
        "z": "7d61deaf.f0703",
        "name": "",
        "props": [
            {
                "p": "payload"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "{}",
        "payloadType": "json",
        "x": 360,
        "y": 680,
        "wires": [
            [
                "fe4fd1e2.2d51d"
            ]
        ]
    },
    {
        "id": "83016113.f363e",
        "type": "mongodb3",
        "z": "",
        "uri": "mongodb://127.0.0.1:27017/data",
        "name": "",
        "options": "",
        "parallelism": "-1"
    }
]

ps .. i dont know if its good practice to have both nodes installed .. maybe others can advise you on this.

3

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