Should I Use One DbContext Per Web Request?

Single DBCONTEXT per web request: Flax and disadvantages

The concept of using a single DBContext instance during the life cycle requested by the HTTP web requesting has attracted widespread attention from the development community. This method has a variety of advantages, especially suitable for specific scenes.

The advantage of using a single DBContext

Consistent data context:

By maintaining a single DBContext, the application ensures that all data operations are performed in the same business affairs. This consistency can achieve seamless data sharing and eliminate the needs of manual coordination.

• Simplified entity management: The entities loading and operating in the same DBConText can be transmitted freely between classes without worrying about not matching context.
Optimized performance:
• The cache mechanism in DBCONTEX has minimized database query and improved performance. The concentrated SaveChanges:
DBCONTEX's Savechanges method provides a concentrated point for transaction management, reducing the risk of data loss due to lack of database preservation due to lack of database preservation.
• A single dbcontext scene
• Although the benefits of using a single DBContext are obvious, it is most suitable for the following applications:

Use a single, non -shared database.

Life cycle is short, such as a single HTTP web request.

Operating within the scope of the clearly defined business affairs.

The alternative to using a single DBContext
Each method DBContext:
• This method creates a new DBContext instance for each repository method. The efficiency is low and requires explicit physical management.

DBContext factory injection:

Injecting the DBCONTEXT factory allows business logic to explicitly create and manage instances. However, it introduces the need to inject the method and complicates the code process.

Conclusion

• The use of a single DBConText in the web request range has advantages in the performance of data consistency, simplified physical processing and optimization. However, it is necessary to consider its limitations and ensure that it meets the specific requirements of the application.

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