CODEWITHSUNDEEP
c#jsondeserialization
Luis Teijon
Luis Teijon

Reputation: 4899

Deserialize a JSON from Google Translation API using C#

I'm using Google Translation API to detect a language of a string. The API is returning this JSON:

{
    "data": {
        "detections": [
            [
                {
                    "confidence": 0.37890625,
                    "isReliable": false,
                    "language": "ro"
                }
            ]
        ]
    }
}

I still haven't found the way of deserialize it. I'm using System.Runtime.Serialization and this is my code:

[DataContract]
public class GoogleTranslationResponse
{
    [DataMember(Name = "data")]
    public Data Data { get; set; }
}
[DataContract]
public class Data
{
    [DataMember(Name = "detections")]
    public List<Detection> Detections { get; set; }
}

[DataContract]
public class Detection
{
    [DataMember(Name = "confidence")]
    public decimal Confidence { get; set; }

    [DataMember(Name = "isReliable")]
    public bool IsReliable { get; set; }

    [DataMember(Name = "language")]
    public string Language { get; set; }
}
// ...
var jsonSerializer = new DataContractJsonSerializer(typeof(GoogleTranslationResponse));
result = (GoogleTranslationResponse)jsonSerializer.ReadObject( new MemoryStream(Encoding.Unicode.GetBytes(responseData)));

I'm getting this as a result:

Confidence: 0
IsReliable:false
Language:null

Upvotes: 1

Views: 332

Answers (1)

dbc
dbc

Reputation: 117155

In your JSON, the value of "detections" is a 2d jagged array:

"detections": [ [  { ... } ] ]

Therefore your model needs to reflect this by using nested collections:

[DataContract]
public class Data
{
    [DataMember(Name = "detections")]
    public List<List<Detection>> Detections { get; set; }
}

Upvotes: 3

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