In this video, learn how to add support for additional comparison operators, such as less than and greater than.
- [Narrator] To add support for comparison operators…like less than and greater than, we can refactor the code…that creates the comparison expression…and delegate it to the proper search expression provider.…In the apply method, we can update the code…that creates the comparison expression…and delegate that to term dot expression provider…dot get comparison, which is a new method that we'll write.…We'll pass in left, the term operator, and right.…Now let's go add this to the interface.…I'll open up I search expression provider…and add a new method that returns an expression…called get comparison.…
This method will take a member expression on the left,…a string for the operator,…and a constant expression on the right.…In the default implementation,…we'll simply return expression dot equal.…I'll make this method virtual as well.…And here we'll just return expression dot equal,…left comma right.…Now we can modify the derived classes…from the default implementation.…Let's open up the decimal to in provider.…
We can override the get comparison method…
- What is RESTful design?
- Building a new API with ASP.NET Core
- Using HTTP methods
- Returning JSON
- Creating RESTful routing with templates
- Securing RESTful APIs with HTTPS
- Representing resources
- Representing links
- Representing collections
- Sorting and searching collections
- Building forms
- Adding caching to an ASP.NET Core API
- Configuring user authentication and authorization
Skill Level Advanced
1. REST API Concepts
2. Build a Basic API
3. Versioning and Errors
4. Secure the API
5. Represent Resources
6. Represent Links
7. Represent Collections
Add pagination7m 37s
8. Sorting Collections
9. Searching Collections
10. Forms and Modifying Data
11. Caching and Compression
12. Authentication and Authorization
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