ASP.NET WEB API, unwanted parameters in request

Question

I'm using asp.net web api. I have a method in UserController which receives POST-requests:
void Post([FromBoby] UserInfo userInfo)

I have a model UserInfo with fields: Login, Name.

I can post json: {Login:"someLogin", Name:"someName"} and it will successfully mapped to userInfo parameter.

I can also post json: {Login:"someLogin", Name:"someName", UnwantedParameter:"someString"} which will also ssuccessfully mapped to UserInfo parameter and UnwantedParameter will be ignored.

How to handle 'unwanted' parameters to throw response exception?

Community · Accepted Answer · 2017-05-23 12:05:23Z

4

Take a look at this question, I believe you are asking the same thing:

POST object in .NET WebAPI

At the end of the day, they suggest setting the following property (typically in the Global.asax.cs)

GlobalConfiguration.Configuration.Formatters.JsonFormatter.SerializerSettings.MissingMemberHandling = MissingMemberHandling.Error;

edited May 23, 2017 at 12:05

CommunityBot

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answered May 20, 2013 at 17:09

BlakeH

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3 Comments

wakeup Over a year ago

There is a new problem. JSON: {Login:"someLogin",Name:"someName"} successfully maped. JSON: {login:"someLogin",name:"someName"} could not be mapped. This problem started after setting MissingMemberHandling.Error. So now works only upper case json-input :(

wakeup Over a year ago

Maybe there is a way to receive both camelCase and PascalCase JSON input?

BlakeH Over a year ago

try this GlobalConfiguration.Configuration.Formatters.JsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();

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