Set bool property default value to true if the property is not passed in API call

Question

I am making a PUT call to update user using url https://myWebsite.com/users with json body

[{
"Name" : "John",
}]

As I have not passed the "Status" attribute in json body, it is set as false by default as false is the default value of the Boolean data type.

But, I need to set it to true as the default value if the property is not passed in the json when making the API call.

I tried to use OnDeserializing attribute as below:

   [OnDeserializing]
    void BeforeDeserialization(StreamingContext ctx)
    {
        this.Status = true;
    }

but it was not working.

Model looks like below:

[DataContract (Namespace = "mynamespace")]
public class User
{
    [DataMember]
    public string Name { get; set; }

    [DataMember]
    public bool Status { get; set; }
}

Please help me with the issue.

@PrasadTelkikar Please check the user model in the UPDATED question — CodeZila, Apr 10 '20 at 06:28

score 2 · Answer 1 · answered Apr 10 '20 at 06:13

If you deserialize to a class, then in that class have a bool member that defaults to a true value. For instance:

public class NameAndStatus
{
    public string name { get; set;}
    public bool status { get; set; } = true;  // default value of true
}

If status is passed in with the json body, the member will be set to that passed in value. Otherwise you will get the default value, which is true.

score 0 · Answer 2 · answered Apr 10 '20 at 06:12

0

Let's try to use DefaultValueAttribute

answered Apr 10 '20 at 06:12

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score 0 · Answer 3 · edited Apr 10 '20 at 06:38

You can assign default value to boolean property Status like,

[DataContract (Namespace = "mynamespace")]
public class User
{
    [DataMember]
    public string Name { get; set; }

    [DataMember]
    public bool Status { get; set; } = true; 
                                    //^^^^^^^^ Set default value to Status property
}

In this way even if you pass value of Status property then default value will be replaced with actual value otherwise it will set value of Status to true.

Set bool property default value to true if the property is not passed in API call

3 Answers3