Autofac vs structuremap: What are the differences?

<Write Introduction here>

1. Container Configuration: Autofac uses a fluent interface for configuration, making it easy to register and resolve types, as well as providing support for lambda expressions and XML configuration. On the other hand, StructureMap uses a more declarative DSL for configuration, allowing for greater control and flexibility when registering and resolving types.

2. Attribute-Based Injection: Autofac supports attribute-based injection, allowing you to mark properties or constructor parameters with attributes to indicate dependencies. In contrast, StructureMap does not have built-in support for attribute-based injection, requiring a more manual approach for injecting dependencies.

3. Ecosystem Integration: Autofac has built-in support for ASP.NET Core dependency injection, making it a popular choice for ASP.NET Core applications. Meanwhile, StructureMap does not have direct integration with ASP.NET Core, requiring additional setup for use in such projects.

4. Lifecycle Management: Autofac provides a variety of built-in lifecycle management options, such as instance per dependency, instance per request, and single instance. StructureMap also offers similar lifecycle management options, but the syntax and configuration methods differ from Autofac.

5. Community Support: Autofac has a larger community and a more extensive set of documentation and resources available online, making it easier to find help and solutions to common problems. In comparison, StructureMap has a smaller community and fewer resources, which may impact the level of support and updates.

6. Performance: Autofac is known for its fast and efficient performance when resolving dependencies, with optimizations for speed and memory usage. While StructureMap also offers good performance, Autofac is often perceived as being slightly faster in resolving dependencies in certain scenarios.

In Summary, Autofac and StructureMap differ in container configuration, attribute-based injection, ecosystem integration, lifecycle management, community support, and performance.