Upserting in Mongo DB using official C# driver

Question

In the official documentation of mongodb they mention upserts, so it would be really nice to write an upsert command instead of:

if (_campaignRepo.Exists(cam         


        

Answer 1

You can use the regular update command, but just pass it the Upsert update flag

MongoCollection collection = db.GetCollection("matches");
var query = new QueryDocument("recordId", recordId);

var update = Update.Set("FirstName", "John").Set("LastName","Doe");
matchCollection.Update(query, update, UpdateFlags.Upsert, SafeMode.False);

That code is adapted from a working application (shortened for clarity)