Mongodb and csharp

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Access to a collection

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var mongoClient = new MongoClient("MONGODB_CONNECTION_STRING");
var database = mongoClient.GetDatabase("DB_NAME");
var collection = database.GetCollection<Collection>("COLLECTION_NAME");

Filter

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var builder = Builders<MyClass>.Filter;
FilterDefinition<MyClass> filter = filterDefinition.Empty;

filter &= builder.Eq(x => x.Property1, "id");
filter &= builder.In(x => x.Property1, new[] { "id1", "id2" });  // filter by Property1 equals to one of the ids

var result = (await collection.FindAsync(filter)).ToList();