I'm trying to deserialize a JSON response from WooCommerce with RestSharp.
I've been crawling this site for similar posts, but haven't found any solution.
My JSON (simplified)
[
{
"id":1,
"name":"product 1",
},
{
"id":2,
"name":"product 2",
}
]
Which translates into C# like this:
public class ProductResponse
{
public List<Product> products { get; set; }
}
public class Product
{
public int id { get; set; }
public string name { get; set; }
}
And is called like this
var response = client.Execute<ProductResponse>(request);
But it doesn't work, as the array of products doesn't have a name.
If the JSON is changed to
{
"products":
[
{
"id":1,
"name":"product 1",
},
{
"id":2,
"name":"product 2",
}
]
}
It works like a charm. Unfortunately I'm not able to change the JSON-format.
So how do I solve this?
Thanks in advance
You can annotate your product class to tell RestSharp which property is which:
public class Product
{
[DeserializeAs(Name = "id")]
public int id { get; set; }
[DeserializeAs(Name = "name")]
public string name { get; set; }
}
Then:
var response = client.Execute<List<Product>>(request);
You should now have a List<Product> with two correctly populated entries.
Original answer for posterity:
I don't have an answer for RestSharp (yet) but you could achieve this easily with Newtonsoft JSON if you can use that.
You can use the JsonProperty annotation like so:
public class Product
{
[JsonProperty("id")]
int id { get; set; }
[JsonProperty("name")]
string name { get; set; }
}
Then:
var products = JsonConvert.DeserializeObject<List<Product>>(json);
I think your deserialization actually should be List<Product> rather than ProductResponse.
E.g.
var response = client.Execute<List<Product>>(request);
Console.WriteLine("id = " + response[0].id) // id = 1
Console.WriteLine("name = " + response[0].name) // name = product 1
Console.WriteLine("id = " + response[1].id) // id = 2
Console.WriteLine("name = " + response[1].name) // name = product 2
So there is nothing wrong with the JSON string, I think the problem is you are expecting an object of type ProductResponse, where as your JSON string is an array/List of type Product.
Related
I need to save data retrieved from API to a DataTable. JSON which is returned from API can't be deserialized directly to DataTable using this code:
DataTable dt = (DataTable)JsonConvert.DeserializeObject(json, (typeof(DataTable)));
I got an error: Unexpected JSON token when reading DataTable. I read that it's beacuse JSON format is not as it should be. Mine is as follows:
{
"page": 1,
"page_size": 1000,
"items": [
{
"id": "e1b019b9a8bf408c9cb964c29e845104",
"asset_id": "5adb0d87882b4e14b99bde74a967e84c",
"alias": "Concrete Pump Yellow",
"serial_number": "QEQ000123",
"model": {
"name": "Pump C50-HP"
},
"operating_hours": {
"hours": 100,
"unit_driven": true
}
}
]
}
I know I need format like [{..}] but can't find workaround, API returns JSON as above. I can deserialize it using this:
var obj = JsonConvert.DeserializeObject(json);
but how can I now add data to DataTable? I'm looking for a solution for it
What the JsonConvert class does is it materializes your string version of the response into an object. For this to work, your string version has to match the structure of the resulting object or the class needs hints to know how to inflate the object. The runtime is telling you that there is a mismatch and it doesn't know how to resolve it.
There are a few ways to get this done. I prefer an structured approach so I would recommend you create classes to receive the data:
var payload = #"{
""page"": 1,
""page_size"": 1000,
""items"": [
{
""id"": ""e1b019b9a8bf408c9cb964c29e845104"",
""asset_id"": ""5adb0d87882b4e14b99bde74a967e84c"",
""alias"": ""Concrete Pump Yellow"",
""serial_number"": ""QEQ000123"",
""model"": {
""name"": ""Pump C50-HP""
},
""operating_hours"": {
""hours"": 100,
""unit_driven"": true
}
}
]
}";
public class ApiResponse
{
[JsonProperty("page")]
public int Page { get; set; }
[JsonProperty("page_size")]
public int PageSize { get; set; }
[JsonProperty("items")]
public IEnumerable<ApiResponseItem> Items { get; set; }
}
public class ApiResponseItem
{
[JsonProperty("id")]
public string Id { get; set; }
[JsonProperty("asset_id")]
public string AssetId { get; set; }
[JsonProperty("alias")]
public string Alias { get; set; }
[JsonProperty("serial_number")]
public string SerialNumber { get; set; }
[JsonProperty("model")]
public ApiResponseModel Model { get; set; }
[JsonProperty("operating_hours")]
public ApiResponseOperatingHours OperatingHours { get; set; }
}
public class ApiResponseModel
{
[JsonProperty("name")]
public string Name { get; set; }
}
public class ApiResponseOperatingHours
{
[JsonProperty("hours")]
public string Hours { get; set; }
[JsonProperty("unit_driven")]
public bool UnitDriven { get; set; }
}
var response = JsonConvert.DeserializeObject<ApiResponse>(payload);
As you can see, the classes use hint attributes to let the deserializer know about the fields. You can then loop through the response.Items enumerable and consume the items as desired.
UPDATE:
For posterity and at the suggestion of #mason, it's important to point out that there is no need to use a DataTable. A quick inspection of the payload reveals the output is a paged version of set of records so it's not equivalent to a data table.
Your issue here is that the json you're deserializing is not a DataTable, its just an Object.
JsonConvert.DeserializeObject(request, typeof(Object)) -> Where Object would be a defined Class with parameter definitions to deserialize the json to, i.e page, page_size, id etc..
Once in this format its fairly easy to coerce it into a DataTable:
https://learn.microsoft.com/en-us/dotnet/api/system.data.datatable?view=net-6.0
The Classes would look something along the lines of:
public class Items
{
public Guid? Id {get;set;}
public Guid? AssetId {get;set;}
public string alias {get;set;}
public string serial_number {get;set;}
public Model model {get;set;}
public OperatingHours operatingHours {get;set;}
}
public class Model
{
public string Name { get;set;}
}
public class OperatingHours
{
public int Hours {get;set;}
public bool Unit_Driven {get;set;}
}
public class OverallObject
{
public int Page {get;set;}
public int PageSize {get;set;}
public List<Items> AllItems {get;set;}
}
I am looking to parse JSON into a C# List. The problem is that the data I am trying to parse is not coming in Array format. Following is the sample JSON
{
"results":{
"records":{
"record:8545314564":{
"name":"record 1",
"description":"description for record 1"
},
"record:2254698789":{
"name":"record 2",
"description":"description for record 2"
},
"record:7454687851":{
"name":"record 3",
"description":"description for record 3"
}
}
}
}
My Model class looks something like this
public class Record
{
public string Name { get; set; }
public string Description { get; set; }
}
What I am looking for is to create a
List<Record> Records
I don't care about the name of the records child node (i.e record:8545314564, record:2254698789 etc). All I care about is the name and description property inside each record node.
I would really appreciate if someone can please provide a sample code in C# to achieve this desired output.
And another alternative:
using Newtonsoft.Json.Linq;
...
var jObject = JObject.Parse(yourJsonString);
var records = jObject["results"]["records"]
.Children()
.Children()
.Select(i => i.ToObject<Record>())
.ToList();
You can find relevant Json.NET documentation here:
https://www.newtonsoft.com/json/help/html/SerializingJSONFragments.htm
By using a Dictionary, you can use a dynamic record name as a key.
public class Root
{
[JsonProperty("results")]
public Result Results { get; set; }
}
public class Result
{
[JsonProperty("records")]
public Dictionary<string, Record> Records { get; set; }
}
public class Record
{
[JsonProperty("name")]
public string Name { get; set; }
[JsonProperty("description")]
public string Description { get; set; }
}
var data = JsonConvert.DeserializeObject<Root>(json);
You could do the following.
var result = JsonConvert.DeserializeObject<RootObject>(jsonString);
var recordCollection = result.results.records.Values.ToList();
Where RootObject is defined as
public class RootObject
{
public ResultObject results { get; set; }
}
public class ResultObject
{
public Dictionary<string, RecordObject> records { get; set; }
}
public class RecordObject
{
public string name { get; set; }
public string description { get; set; }
}
Output
You can parse the Json and then iterate through the tokens for each property value.
// assuming json is your json string
JObject obj = JObject.Parse(json);
JToken sec = obj["results"]["records"];
foreach (JToken token in sec)
{
string name = token.First()["name"].ToString();
string description = token.First()["description"].ToString();
}
I'm trying to deserialize some Json using the JsonConvert. The example in JSON that I want to handle is:
2 {
3 'Name': 'Product 1',
4 'ExpiryDate': '2000-12-29T00:00Z',
5 'Price': 99.95,
6 'Sizes':{ 'Tall': 30
'ExtraTall':40
}
7 },
8 {
9 'Name': 'Product 2',
10 'ExpiryDate': '2009-07-31T00:00Z',
11 'Price': 12.50,
12 'Sizes': null
13 }
I already tried some stuff like:
var handlerLocal= JsonConvert.DeserializeObject <Dictionary <string,Dictionary<string,string>>>(z);
Till now I'm only handling simple lists using this:
var handlerLocal = JsonConvert.DeserializeObject<FriendsHandler>(z);
FriendHandler works like a model. But in this new case I have a List inside a List and that is killing me.
Anyone can help me?
Best regards
In general with JSON.net you can just write a object that matches what you're parsing correctly and then use DeserializeObject as you have.
In this case the JSON you have provided is invalid. It would be a dictionary in the case that it looked like this:
{'thing1': {
'Name': 'Product 1',
'ExpiryDate': '2000-12-29T00:00Z',
'Price': 99.95,
'Sizes':{ 'Tall': 30
'ExtraTall':40
}
},
'thing2': {
'Name': 'Product 2',
'ExpiryDate': '2009-07-31T00:00Z',
'Price': 12.50,
'Sizes': null
}}
I think it should be an array, which means it should be surrounded by [].
To parse this, just do this:
var handlerLocal = JArray.Parse(z).ToObject<List<FriendsHandler>>();
When trying to deserialise JSON, I find it best to use Json2Sharp.com to create classes to contain data, however the JSON you've provided is invalid so it's not possible to create a class from this.
If you could find some valid JSON to use, this tool will handle the rest for you.
Create a model like this:
public class Product
{
public string Name { get; set; }
public DateTime ExpiryDate { get; set; }
public decimal Price { get; set; }
public Dictionary<string, int> Sizes { get; set; }
}
Get your JSON
var productsJson = << Call some repo that returns json string >>
Then call
var products = JsonConvert.DeserializeObject<List<Product>>(productsJson);
NOTE: You will need to make your JSON valid first, it is syntactically incorrect at the moment
******EDIT*******
The question needs updating (see comments), your models would look like this
public class Self
{
public string DeviceID { get; set; }
public string TimeStamp { get; set; }
}
public class Location
{
public string RoomID { get; set; }
public string Room { get; set; }
}
public class Friend
{
public string IdUser { get; set; }
public string Name { get; set; }
public Location Location { get; set; }
}
public class RootObject
{
public Self Self { get; set; }
public List<Friend> Friends { get; set; }
}
then
var products = JsonConvert.DeserializeObject<RootObject>(productsJson);
I'm trying to get a specific part of Json, but couldn't figure out how.
My json looks like:
[
{
"ResourceId":"1",
"ResourceText":"Hello",
"LanguageId":"1"
},
{
"ResourceId":"2",
"ResourceText":"World",
"LanguageId":"1"
}
.
.
.
]
So for example I want the part (changes according to pResourceId parameter, so what I'm trying to get changes everytime)
{
"ResourceId":"1",
"ResourceText":"Hello",
"LanguageId":"1"
}
But I couldn't get it. What I tried so far:
JObject data = JObject.Parse(jsonStringResources);
return data.Values().Where(x => x.Contains("ResourceId\" : \"" +pResourceId +"\"") ) as clsResource;
I would make a model for the format of your JSON:
class Model
{
public string ResourceId { get; set; }
public string ResourceText { get; set; }
public string LanguageId { get; set; }
}
And then you can do:
var models = JsonConvert.DeserializeObject<List<Model>>(jsonStringResources);
var matchingModel = models.Where(model => model.ResourceId == pResourceId).ToList().FirstOrDefault();
return JsonConvert.SerializeObject(matchingModel);
We deserialize the JSON into a list of our models. We then get the model where the ResourceId matches the pResourceId. Finally, we serialize the model again to get the JSON string.
When pResourceId == 1, the result is:
{
"ResourceId": "1",
"ResourceText": "Hello",
"LanguageId": "1"
}
If your json looks like that, you can deserialize it into object which would be:
public class JsonTestModel
{
public JsonTestModel()
{
}
public int ResourceId { get; set; }
public string ResourceText { get; set; }
public int LanguageId { get; set; }
}
and then you could search for it like this:
List<JsonTestModel> theListWithModels = JsonConvert.DeserializeObject<List<JsonTestModel>>(theJsonString);
var extractedModels = theListWithModels.Where(m => m.ResourceId == pResourceId);
I have a json response that looks like this:
"corps":
[
{
"id": "1007",
"company_id": "1007",
"org_name": "My organization 1",
"org_addr1": "123 W. 1234 S.",
"org_addr2": "",
},
{
"id": "1008",
"org_name": "My organization 2",
"org_addr1": "123 W. 1234 S.",
"org_addr2": "",
}
]
I have successfully gotten a single response into my HCO object properly using:
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(HCO));
HCO Company = (HCO)serializer.ReadObject(response.Content.ReadAsStreamAsync().Result);
This works well, but I'm trying to get all elements under corps. So I thought of trying something like this:
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(HCO));
HCO element = (HCO)serializer.ReadObject(response.Content.ReadAsStreamAsync().Result);
Companies.Add(element);
But this simply doesn't work. How do I parse the json result and then serialize each element in the response?
HCO Class:
public class HCO
{
public int id { get; set; }
public int comapny_id { get; set; }
public string org_name { get; set; }
public string org_addr1 { get; set; }
public string org_addr2 { get; set; }
}
You can wrap up the HCO class in a Response like this:
public class HCOResponse
{
public List<HCO> corps {get; set;}
}
And then try to deserialize the json using DataContractJsonSerializer like this:
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(HCOResponse));
Companies = (HCOResponse)serializer.ReadObject(response.Content.ReadAsStreamAsync().Result);
Hope it helps.
EDIT: (from feedback)
HCOResponse hco_resp = (HCOResponse)serializer.ReadObject(response.Content.ReadAsStreamAsync().Result);
Companies = hco_resp.corps;