This is a very thin API layer for querying a MongoDB. Thanks to koa-mongo also supports connection pooling.
Using it you can do simple queries to find all objects in a collection that match a given property value:
http://localhost:3000/{collection}?{property}={value}
Given that you are looking for all objects in the collection cities with the property name set to Taipei, you just call:
http://localhost:3000/cities?name=Taipei
property also supports the dot notation to query for sub-documents e.g. you can use city.name=Taipei
. This would find all documents
where the property name of the sub-document city is set to Taipei.
just move the config.json.example
to config.json
and modify its connection string in the property uri.
Add greater equal and less equal queries - just by modifying the query string accordingly. The following query example would than find all cities with 30,000 or more citizens:
http://localhost:3000/cities?citizens>=30000