How to write web api Get method with list a input

Question

I would like to write web method(WebApi 2) as

GetArchiveDataForEngagements(collection of EngagementNumbers)

I have written code as

public async Task<IHttpActionResult> GetArchiveDataForEngagements(string[] 
        engagementNumber)
    {
        return Ok();
    }

and using postman ,My input is like below

{
    "engagementNumber":["one","two"]
}

I am getting "null" value for engagementNumber in web method.

Can anyone suggest , how can I achieve this?

Are you posting? you may need to add FromBody attribute – Rav Jun 24 '19 at 12:34 — Rav, Jun 24 '19 at 12:34

score 0 · Answer 1 · answered Jun 24 '19 at 13:14

You cannot pass data to a GET method using values in a body.

You could pass values as multiple query string values like this:

https://example.com/controller/GetArchiveDataForEngagements?engagementNumber=one&engagementNumber=two

You have not given enough routing information to make an accurate guess at the URL, but the query string part is the important part.

score -1 · Answer 2 · answered Jun 24 '19 at 13:33

public class TEST
{
    public string[] engagementNumber { get; set; }
}

[HttpPost]
[Route("test")]
public async Task<IHttpActionResult> GetArchiveDataForEngagements(TEST t)
{
    return Ok();
}

Postman URL:

http:/localhost:8888/api/testCon/test

Postman Body: JSON(application/json)

{
    "engagementNumber":["one","two"]
}

TestCon is the name of the controller.

How to write web api Get method with list a input

2 Answers2