spring data mongo db ldap authentication - mongodb

Question

Our company recently changed from Basic auth to LDAP authentication and regular apps are now using authSource=$external&authMechanism=PLAIN on the URL.
This works fine on a normal app but I can't figure out how to set these using Spring Data. Surely there is a way to do this, right?

Answer 1

As you can see below you can't set something like authSource/authMechanism so you have to change to use URI. Also note when using URI you cannot use host/port and username/password. Those all need to go in the URI.
Something like
export spring_data_mongodb_database=db
export spring_data_mongodb_uri = mongodb://username:password#host:port?authSource=$external&authMechanism=PLAIN
Here all the properties that you can currently configure for mongodb in spring boot.
https://docs.spring.io/spring-boot/docs/current/reference/html/common-application-properties.html
spring.data.mongodb.authentication-database= # Authentication database name.
spring.data.mongodb.database=test # Database name.
spring.data.mongodb.field-naming-strategy= # Fully qualified name of the FieldNamingStrategy to use.
spring.data.mongodb.grid-fs-database= # GridFS database name.
spring.data.mongodb.host=localhost # Mongo server host.
spring.data.mongodb.password= # Login password of the mongo server.
spring.data.mongodb.port=27017 # Mongo server port.
spring.data.mongodb.repositories.enabled=true # Enable Mongo repositories.
spring.data.mongodb.uri=mongodb://localhost/test # Mongo database URI. When set, host and port are ignored.
spring.data.mongodb.username= # Login user of the mongo server.

Answer 2

If you are using Spring-Boot mongodb api with LDAP then the uri has to be the following in application.properties files in the resources folder:
spring.data.mongodb.uri="mongodb://username:password#host:port/?authSource=$external&authMechanism=PLAIN"
spring.data.mongodb.database="databasThatYouWantToConnectTo"
No need for other parameters like spring.data.mongodb.username, spring.data.mongodb.password, etc., because everhything is mentioned in the spring.data.mongodb.uri
the substring authSource=$external&authMechanism=PLAIN in spring.data.mongodb.uri says Mongo that the authentication and authorization is by LDAP.
You can check the image below which is taken from the Connection String URI format document form MongoDB
If you are using the Mongo Java Driver provided by Mongo Db then you have to do the connection like this:
import com.mongodb.MonogoClient;
import com.mongodb.MongoClientURI;
import com.mongodb.client.MongoDatabase;
public class MongoConnect{
public static void main(String args[]){
MongoClientURI connString = new MongoClientURI("mongodb://username:password#host:port/?authSource=$external&authMechanism=PLAIN");
MongoClient mongoClient = new MongoClient(connString);
MongoDatabase database = mongoClient.getDatabase("databasThatYouWantToConnectTo");
System.out.println(database.getName()+" "+ mongoClient.getCredentialList());
}
}