Consume deployed API service in application using C#, MVC.

You might be doing some wrong deserialization. Because deserializer is not able to convert your json response to appropriate type. Please post the sample json data and type into which you are deserializing

Probably you can get hint from this refernces.

 

https://stackoverflow.com/questions/29896264/cannot-deserialize-the-current-json-object-e-g-namevalue

 

https://stackoverflow.com/questions/21358493/cannot-deserialize-the-current-json-object-e-g-namevalue-into-type-sy

 

https://stackoverflow.com/questions/27645952/json-net-cannot-deserialize-the-current-json-object-e-g-namevalue-in

 

http://www.aspdotnet-suresh.com/2017/02/cannot-deserialize-current-json-object-name-value.html

Cannot deserialize the current JSON object (e.g. {"name":"value"}) into type 'System.Collections.Generic.List`1[REST_API_TESTING.Models.Watermark]' because the type requires a JSON array (e.g. [1,2,3]) to deserialize correctly.

To fix this error either change the JSON to a JSON array (e.g. [1,2,3]) or change the deserialized type so that it is a normal .NET type (e.g. not a primitive type like integer, not a collection type like an array or List) that can be deserialized from a JSON object. JsonObjectAttribute can also be added to the type to force it to deserialize from a JSON object.

Path 'url', line 2, position 9.

 

I have tried your suggestion but i got the above errors.

 

Please help me regarding this.

You can refer

https://www.c-sharpcorner.com/article/consuming-asp-net-web-api-rest-service-in-asp-net-mvc-using-http-client/