Is Singleton with an Entity Framework dbcontext good?

Question

My question is too simple, I have an idea to manage a DbContext object by using one instance, so the idea is use the singleton design pattern.

From your experience, is a singleton good to use with Entity Framework dbcontext to ensure that only one dbcontext instance is used?

Answer 1

Is singleton good to use with entity framework dbcontext to ensure that one dbcontext instance is used?

It's not only a bad idea, it won't work. It's not thread-safe and will generate execptions when used concurrently. And a long-lived DbContext will tend to accumulate lots and lots of objects in its Change Tracker, degrading performance and wasting resources.

The lifetime of a DbContext begins when the instance is created and ends when the instance is disposed. A DbContext instance is designed to be used for a single unit-of-work. This means that the lifetime of a DbContext instance is usually very short.

DbContext Lifetime, Configuration, and Initialization