MongoDB

Category

Databases

Runs in

The Phloem cloud — nothing to install

Lets you and Hamming read documents from a MongoDB database, with each collection's fields listed in Trace.

#What Phloem reads

• The database's collections, with field names and types taken from the first 100 documents of each, listed in Trace
• Collections named system.* are left out

Phloem only reads. It never writes to MongoDB.

#What you need

• The server's host, port (default 27017) and database, or a full connection string such as mongodb+srv://…
• A user that can read the database, unless the server has no authentication
• Network access from Phloem's cloud to the server

#Connect

1. In the console, open Connectors, choose Add connector, then MongoDB.
2. Enter a Display Name.
3. Under Authentication Method, choose:
   • Username & Password — Host, Port, Database, Username and Password. Auth Source is the authentication database (default admin). Set Replica Set if you connect to one.
   • Connection String — paste the full URI.
4. Choose Test Connection (it shows the server version), then Create Connection.

#What Hamming can do

• Run find queries with JSON that you or Hamming write: {"collection": "users", "filter": {"age": {"$gt": 25}}, "limit": 100}, with an optional projection

#Notes

• A query returns 100 documents unless it sets limit.
• Aggregation pipelines are not supported. Queries are find with a filter.

#Connection fields

What the Add connector form asks for.

Updated November 6, 2026