How to Gracefully Handle Missing Data When Deserializing JSON to C# Using JSON.NET?

Use json.net to series to discern json data to C#: process incomplete JSON structure

When processing JSON data and C#class, JSON structures that may not include all attributes defined in class C#are often encountered. The use of JSON.NET back -sequencing such JSON data requires a powerful way to process the missing data elegantly.

json.net provides a convenient solution for this issue. By using its high -level features, you can be serialized in class C#in class C#while seamless processing of lack of attributes.

Create C#class from JSON

First, use online tools such as json2csharp.com to generate C#class from the JSON structure. This will create a set of C#classes that accurately represent the JSON data structure.

Catalize JSON data

After obtaining C#class, you can use the JSONCONVERT class provided by JSON.NET to series in these classes. The following code demonstrates this:

By using JSONCONVERT.DeserializeObject, you can directly derive the JSON data into instances of the rootObject class. This object will contain all the attributes that exist in JSON data.

Treatment of missing data

var myJson = @"{
    ""givenname"": ""Robert"",
    ""passwordexpired"": ""20091031041550Z"",
    ""accountstatus"": [""active""],
    ""accountstatusexpiration"": [""20100612000000Z""],
    ""employeeid"": [""999777666""],
    ""sn"": [""Johnson""]
}";

var rootObject = JsonConvert.DeserializeObject<rootobject>(myJson);

When there is a lack of attributes in JSON data, JSON.NET will automatically distribute the default value to the corresponding attributes in class C#. For example, if the Affility attribute is missing in JSON data, the Affility property in the rootObject will initialize it into an empty array.

Custom definition value

If necessary, you can use the defaultValueAttribute property to customize the default value assigned to the missing attribute, as shown below:

Conclusion

Using json.net and recommended methods, the adaptive of JSON data is serialized into a simple and powerful process, which is the same when processing missing data elegantly. This enables data exchange between different systems and applications.

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