mongodb

README

MongoDB plugin

Plugin to query MongoDB (https://www.mongodb.com) as a data source.

Compile with:

go build -buildmode=plugin -ldflags="-w" -o mongodb.so ./*.go

Access details

Source YAML definition's access fields:

• addr: HOST:PORT database's access point, for example - localhost:27017
• db: database name to use
• collection: collection name to query

Get all the possible fields

As MongoDB doesn't provide a built-in way to get all the possible collection's fields without requesting all documents plugin will try:

1. To return a manually filled queryFields - useful when some fields rarely appear
2. To request 1000 documents and get all their unique fields, including nested

Golang driver

The mongo-go-driver contains four object types:

• bson.D: A BSON document. This type should be used in situations where order matters, such as MongoDB commands
• bson.M: An unordered map. It is the same as D, except it does not preserve order
• bson.A: A BSON array
• bson.E: A single element inside a D

TODO

• Implement 'NOT BETWEEN' in SQL