Parameters in ASMX webmethod

Question

Parameters in ASMX webmethod

m2022 11

I have a WebMethod in plain old asmx Webservice which accepts a couple of parameters in json format
eg
{"param1":1, param2="string"}
however if the sender attaches additional parameters in the list eg
{"param1":1, param2:"stringValue", "param3":3}, the webmethod is still invoked and returns result based on the two parameters.
Is there any way to return a 404 response when the input param list is not matching the webmethod list

Viorel 125.7K Reputation points

2023-01-03T18:01:09.47+00:00

Maybe you should use a "JSON schema". Are you parsing the JSON data explicitly using some classes?

1 answer

Your answer

Viorel 125.7K Reputation points

2023-01-03T18:01:09.47+00:00

Maybe you should use a "JSON schema". Are you parsing the JSON data explicitly using some classes?

Answer 1

Lan Huang-MSFT 30,206 Microsoft External Staff

Hi @m2022 ,
You didn't provide the code you're currently working on, we can only guess.
I wrote a simple example according to your needs. Returns NotFound when param3 is empty.

Best regards,
Lan Huang

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

m2022 11 Reputation points

2023-01-04T13:07:21.46+00:00
Hi Lan Huang,
Thanks for your reply.

Following is something I am using -

My ASMX has a method like following- accepting 2 params id and text

[WebMethod(EnableSession = true)] public string GetDataList(int id, string text) { //Do processing //AND //return results; }

When Client calls it as something like ->
MyService.asmx/GetDataList POST {"id":1, text="string"} --> Webmethod Works correct and returns data back to client

When Client calls it as something like -> an additional parameter say name
MyService.asmx/GetDataList POST {"id":1, text="string" , "name":"somename"}} --> Still Invokes GetDataList(int id, string text) and returns data back to client, somehow.

I want framework to identify it as a not matching method due to additional param not in list of the method and return say a 404 response.

Hope it is a bit clearer.
Lan Huang-MSFT 30,206 Reputation points Microsoft External Staff

2023-01-05T06:00:34.757+00:00

Hi @m2022 ,

an additional parameter say name

You defined a total of two parameters, how did you implement the additional parameters?

Share via

Parameters in ASMX webmethod

1 answer

Your answer