How do I bind list of guids on the query string in C# web api?

Question

How do I bind a list of Guids passed on the query string for a web-api call.

I've tried comma separated list, an array, etc. but they always come up with an empty guid on the controller action

public endPoint:

public ApiResult Get([FromUri]List<Guid> listIds)

What I've tried

endpoint?listIds=78CC5308-5A3D-40C2-8D7C-3AAB0CAC618B,6DA7AFB8-D862-4861-8EA2-EE5EB9BC7C6A

endpoint?listIds=["78CC5308-5A3D-40C2-8D7C-3AAB0CAC618B","6DA7AFB8-D862-4861-8EA2-EE5EB9BC7C6A"]

All I get each time I try is a list with one element and it is the empty GUID

Answer 1

The right way for webapi is using the query parameter multiple times,no matter the type.

i.e:

endpoint?listIds=1234-5678&listIds=5555-4444....

Answer 2

The trick is to add an individual entry for each guid in the query string. So the values bind properly when I GET

endpoint?listIds=78CC5308-5A3D-40C2-8D7C-3AAB0CAC618B&listIds=6DA7AFB8-D862-4861-8EA2-EE5EB9BC7C6A