MongoDB insertMany creates new collection instead of adding?

Question

MongoDB

You need to add an array of objects to an already existing collection. I am using this code:

catModel.insertMany(jsonRow,  function(err, videos) {

Inside catModel there is a modelName property: "Yoga-videos-source" Mongo has a collection called "Yoga-videos-source".
Problem: After inserting an array of objects, many are added not to "yoga-videos-source", but to a new collection named "yoga-videos-sources" (prefixed with -s at the end).
Question How can I fix this? Why did it happen?

Answer 1

The main problem is that collections have names like: "Yoga-videos-source". Mongo has a specific collection naming convention, so the name should be: "yoga-videos-sources"
1) No capitalization 2) End should be "-s"

Answer 2

RAW request normally fulfills?