Need help with advanced filter for API endpoint

I`d like to get best practise with example and get best library for advanced filtring thrue API endpoint.

Data are stored in SQL and have multiple JOINs relationship.


Filter operator: "AND", if posible also "OR"

Filter types: None, equal, not equal, grater than, grater than and equal, less than, less than or equal, contains, not contains, start with, not start with, end with, not end with, any, not any, IN, not IN, is null, not null, empty, not empty, is null or empty, is not null or empty

Latency in miliseconds

Skills: C# Programming, ASP, SQL

See more: rest api multiple filter parameters, rest api filtering best practices, rest api filter not equal, rest api filter contains, rest api filter multiple values, rest api filter operators, rest api filter fields, rest api design filtering, sorting and pagination, using fasthost api need help, need help implementing api resellerclub, need help paypal adaptive payment api, i am a clothes desinger an need help making my dress, i am an undocumented immigrant artist need need help brooklyn, i have bought a theme loma for wordpress to use to design my blog however i am totally stuck and need help in customising my blo, i need help advertising my website, i need help designing a form, i need help designing a shirt, i need help designing clothes, i need help designing my van wrap, i need help find worker

About the Employer:
( 0 reviews ) Santa Clara, United States

Project ID: #27904090

7 freelancers are bidding on average $179 for this job


Sir, Do you have the full source code for the changes to be done or this is about writing it from scratch? Sincerely, Pankaj

$250 USD in 2 days
(113 Reviews)

Hello? I have worked on php, ajax, jquery with API(AWS, shopify, wordpress etc...) Integration, Admin template projects to what you are looking for, and I am confident I can exceed your expectations. I have attached More

$155 USD in 3 days
(14 Reviews)

Hi. Thanks to your attention to my proposal. I am .Net c#,, Asp expert. I have experienced in web, app, desktop with .net Since .net and c# is powerful lib and language. So I can provide you very awesome project More

$140 USD in 1 day
(6 Reviews)

Hello, I just read your posting and it sounds like you need an API expert. I have rich experience in these fields. If you give me a chance, I will provide you the perfect results. Regards, Pavel

$100 USD in 1 day
(3 Reviews)

Hello, i am full stack developer. I have expert knowledge and experience in ASP.NET, .NET Core Web API. I can do your requirement. Please share more details for me. Thank you, Kapila

$250 USD in 5 days
(7 Reviews)

Hi, I have 7 years of working experience on different microsoft technologies like C#, MVC, Webapi, EF6, Authentication using JWT token, SQL Server, LINQ,.Net core 3.1,Angular 8+, HTML, CSS, JavaScript, Swagger UI and More

$110 USD in 1 day
(3 Reviews)

Hi, I've checked the details mentioned in the job description, I want to understand more about it, I'm proficient and able to do it for you the join relationships. Can you please share the existing code with me? Or the More

$250 USD in 10 days
(0 Reviews)