Connection string for connecting mongo database with SSL enabled Am facing some below problem in my mongodb replication environment 

I have 3 replica set environment with SSL enabled and ssl mode as preferSSL

3 servers has 3 different Key file with common CA file

when i try to connect the mongo shell with below command it works fine

mongo --ssl --host hostname:port --sslPEMKeyFile "/home/mongod/keyfile.pem" --sslCAFile /home/mongod/CAfile.pem

My question is how to provide these details in connection string to connect the database from application perspective

MongoDB version: 4.0.2
OS: Amazon Linux 

Thanks,
Vignesh
It depends on which driver you are using.
https://docs.atlas.mongodb.com/driver-connection/#driver-examples