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ASP.NET C# Deserialized Json Object

I have json like this
{
"reader_name":"FX9600EAF871",
"mac_address":"84:24:8D:FC:0E:AD",
"tag_reads":[
{
"epc":"E28068100000003C0A05E3B7",
"antennaPort":"1",
"peakRssi":"-31",
"seenCount":"2458",
"timeStamp":"14/02/2022 22:50:24:356",
"channelIndex":"5"
}
]
}
I try using this code
public class TagRead
{
public string epc { get; set; }
public string pc { get; set; }
public string antennaPort { get; set; }
public string peakRssi { get; set; }
public string seenCount { get; set; }
public string timeStamp { get; set; }
public string phase { get; set; }
public string channelIndex { get; set; }
public string isHeartBeat { get; set; }
}
public class Hdr
{
public string reader_name { get; set; }
public string mac_address { get; set; }
public List<TagRead> tag_reads { get; set; }
}
var deserialized = Newtonsoft.Json.JsonConvert.DeserializeObject<Hdr>(json);
When try to print reader name using
deserialized.reader_name
it gets result FX9600EAF87
but when print
deserialized.tag_reads
it get nothing?
my question is How to get epc & antennaport data?
thank you

Because deserialized.tag_reads is a collection instead of base type or string, you might get the result that you didn't want to get.
How to get epc & antennaport data?
you might try to use deserialized.tag_reads with foreach to iterator the collection then do your logic
var deserialized = Newtonsoft.Json.JsonConvert.DeserializeObject<Hdr>(json);
foreach(var item in deserialized.tag_reads){
//item.epc
//item.antennaPort
}
c# online

JSON DeserializeObject to Model without Key Name

I currently have JSON coming in as follows:
{"36879":[{"min_qty":1,"discount_type":"%","csp_price":10}],"57950":[{"min_qty":1,"discount_type":"flat","csp_price":650}]}
This contains a list of the following records
ProductId
MinQty
DiscountType
Price
I need to deserialize this into the following model:
public class CustomerSpecificPricing
{
string productId { get; set; }
public virtual List<CustomerSpecificPricingDetail> CustomerSpecificPricingDetails { get; set; }
}
public class CustomerSpecificPricingDetail
{
public string min_qty { get; set; }
public string discount_type { get; set; }
public string csp_price { get; set; }
}
The problem is that the "productId" of each record is missing the key name.
If I run my JSON through J2C, I get the following:
public class 36879 {
public int min_qty { get; set; }
public string discount_type { get; set; }
public int csp_price { get; set; }
}
public class 57950 {
public int min_qty { get; set; }
public string discount_type { get; set; }
public int csp_price { get; set; }
}
public class Root {
public List<_36879> _36879 { get; set; }
public List<_57950> _57950 { get; set; }
}
Which is obviously incorrect.
How would I deserialize my object correctly?

You would need to deserialize it into a dictionary first and then map it into the format you require after. Something like this should work:
var dict = JsonConvert.DeserializeObject<Dictionary<string, IEnumerable<CustomerSpecificPricingDetail>>>();
var result = dict.Select(kvp => new CustomerSpecificPricing { ProductId = Int32.Parse(kvp.Key), CustomerSpecificPricingDetails = kvp.Value });
Id also recommend you follow the conventional standards of naming. In this case properties in classes should be PascalCase,
e.g. your classes now become:
public class CustomerSpecificPricing
{
[JsonProperty("productId ")]
public string ProductId { get; set; }
public virtual List<CustomerSpecificPricingDetail> CustomerSpecificPricingDetails { get; set; }
}
and
public class CustomerSpecificPricingDetail
{
[JsonProperty("min_qty")]
public string MinQty { get; set; }
[JsonProperty("discount_type ")]
public string DiscountType { get; set; }
[JsonProperty("csp_price ")]
public string CspPrice { get; set; }
}

Convert Rest API JSON Response into C# object

I have a code REST API response which is json, and parsing to JObject and pulling a value from it. But i am getting the error when parsing to JObject.
Error: "Unexpected character encountered while parsing value: S. Path '', line 0, position 0."
Is there any other way to convert Json string to C# object.
I have the following code:
using Newtonsoft.Json;
using (HttpResponseMessage message = httpclient.GetAsync(folderIdURL).Result)
{
if(message.IsSuccessStatusCode)
{
var dataobjects = message.Content.ReadAsStringAsync();
//dataobjects = "{"id":"https://gbc-dev5.cloud.wc.com/DctmRest/repositories/dmgbsap_crt/","title":"DQL query results","author":[{"name":"EMC Documentum"}],"updated":"2019-05-02T15:19:52.508+00:00","page":1,"items-per-page":100,"links":[{"rel":"self","href":"https://gbc-dev5.cloud.wc.com/DctmRest/repositories/dmgbsap_crt/?dql=SELECT%20r_object_id%2cobject_name%20FROM%20dm_sysobject%20WHERE%20FOLDER%20(%27%2fgbc%2fUS%2fOSA-ATTACHMENT%2f2019%27)"}],"entries":[{"id":"https://gbc-dev5.cloud.wc.com/DctmRest/repositories/dmgbsap_crt/?dql=SELECT%20r_object_id%2cobject_name%20FROM%20dm_sysobject%20WHERE%20FOLDER%20(%27%2fgbc%2fUS%2fOSA-ATTACHMENT%2f2019%27)&index=0","title":"0b0111738011c114","updated":"2019-05-02T15:19:52.508+00:00","published":"2019-05-02T15:19:52.508+00:00","links":[{"rel":"edit","href":"https://gbc-dev5.cloud.wc.com/DctmRest/repositories/dmgbsap_crt/objects/0b0111738011c114"}],"content":{"json-root":"query-result","definition":"https://gbc-dev5.cloud.wc.com/DctmRest/repositori es/dmgbsap_crt/types/dm_sysobject","properties":{"r_object_id":"0b0111738011c114","object_name":"04"},"links":[{"rel":"self","href":"https://gbc-dev5.cloud.wc.com/DctmRest/repositories/dmgbsap_crt/objects/0b0111738011c114"}]}},{"id":"https://gbc-dev5.cloud.wc.com/DctmRest/repositories/dmgbsap_crt/?dql=SELECT%20r_object_id%2cobject_name%20FROM%20dm_sysobject%20WHERE%20FOLDER%20(%27%2fgbc%2fUS%2fOSA-ATTACHMENT%2f2019%27)&index=1","title":"0b0111738011c115","updated":"2019-05-02T15:19:52.509+00:00","published":"2019-05-02T15:19:52.509+00:00","links":[{"rel":"edit","href":"https://gbc-dev5.cloud.wc.com/DctmRest/repositories/dmgbsap_crt/objects/0b0111738011c115"}],"content":{"json-root":"query-result","definition":"https://gbc-dev5.cloud.wc.com/DctmRest/repositories/dmgbsap_crt/types/dm_sysobject","properties":{"r_object_id":"0b0111738011c115","object_name":"05"},"links":[{"rel":"self","href":"https://gbc-dev5.cloud.wc.com/DctmRest/repositories/dmgbsap_crt/objects/0b0111738011c115"}]}}]}"
JObject responseObj = JObject.Parse(dataobjects.ToString());
String id = (String)responseObj["entries" -->"content"-->"properties"-->"object_name"];
}
}
}
I am expecting the value from (String)responseObject["enteries"]["content"][" properties"]["object_name"]

JObjects are a pain. You could get a sample of the JSON response and paste it into a converter like json2csharp.com. It will generate a class for you which you can then use like so:
Generated Class:
public class MyClass
{
public string SomeProperty { get; set; }
public string AnotherProperty { get; set; }
}
Usage:
if (message.IsSuccessStatusCode)
{
var deserializedObject = JsonConvert.DeserializeObject<MyClass>(response.Content.ReadAsStringAsync().Result);
Console.WriteLine(deserializedObject.SomeProperty);
}

I would suggest to follow those steps:
You need to check that your json is actually a json, because an error says it is not. You can use online tools like this
If possible, avoid JObject and generate real classes. It is not that hard if you know the structure, and you can use another online tools
Modify your code to use classes
so you will have something like:
using System;
using Newtonsoft.Json;
namespace ConsoleApp11
{
class Program
{
public class Message
{
public Enteries enteries { get; set; }
}
public class Enteries
{
public Content content { get; set; }
}
public class Content
{
public Properties properties { get; set; }
}
public class Properties
{
public string object_name { get; set; }
}
static void Main(string[] args)
{
var input = "{\"enteries\":{\"content\":{ \"properties\":{ \"object_name\":\"your value string\"}}}}";
Message msg = JsonConvert.DeserializeObject<Message>(input);
Console.WriteLine(msg?.enteries?.content?.properties?.object_name ?? "no value");
Console.ReadKey();
}
}
}
I hope it helps 😊

Thank you so much for all the help and trips. Finally i am able to get the required value from JSON string.
Here is the Final code json2csharp.com
public class Author
{
public string name { get; set; }
}
public class Link
{
public string rel { get; set; }
public string href { get; set; }
}
public class Link2
{
public string rel { get; set; }
public string href { get; set; }
}
public class Properties
{
public string r_object_id { get; set; }
public string object_name { get; set; }
}
public class Link3
{
public string rel { get; set; }
public string href { get; set; }
}
public class Content
{
public string json_root { get; set; }
public string definition { get; set; }
public Properties properties { get; set; }
public List<Link3> links { get; set; }
}
public class Entry
{
public string id { get; set; }
public string title { get; set; }
public DateTime updated { get; set; }
public DateTime published { get; set; }
public List<Link2> links { get; set; }
public Content content { get; set; }
}
public class RootObject
{
public string id { get; set; }
public string title { get; set; }
public List<Author> author { get; set; }
public DateTime updated { get; set; }
public int page { get; set; }
public int items_per_page { get; set; }
public List<Link> links { get; set; }
public List<Entry> entries { get; set; }
}

Using Newtonsoft.Json
First get the list of entries from the responseObj. Then loop each entries and use LINQ to JSON to get values by property name or index.
You can use Item[Object] index on JObject/JArray and then cast the returned JValue to the type you want
JObject responseObj = JObject.Parse(dataobjects.ToString());
// get JSON result objects into a list
IList<JToken> entries = responseObj ["entries"].Children().ToList();
foreach(JToken entry in entries)
{
string object_name = (string) entry["content"]["properties"]["object_name"];
}

c# load Json into inherited class

I have a C# classes and I need to parse JSON into it.
The class has a List<> from another class.
The class structure is like this.
public class OrderFund {
public int OrderID { get; set; }
public int BrokerID { get; set; }
public string SettlementMethod { get; set; }
public List<SettlementSap> SettlementsSap { get; set; }
}
public class SettlementSap {
public string SapMonetaryAccountNo { get; set; }
public string SapMonetaryAccountType { get; set; }
public string SapMonetaryAccountOffice { get; set; }
}
My JSON is like this.
{
"settlementMethod": "SAP",
"BrokerID": 1,
"OrderID": 1,
"Settlements": [
{
"SapMonetaryAccountNo": "400245892464",
"SapMonetaryAccountType": "CA",
"SapMonetaryAccountOffice": "AR"
}
]
}
I load my JSON file like this...
static OrderFund LoadJson(string file) {
string dire = Directory.GetCurrentDirectory();
using (StreamReader r = new StreamReader(dire + "\\" + file)) {
string json = r.ReadToEnd();
OrderFund items = JsonConvert.DeserializeObject<OrderFund>(json);
return items;
}
}
The data load fine into OrderFun Class but OrderFund.SettlementsSap is null.
How can I load Settlements into SettlementsSap?

That's because you have named the field SettlementsSap but your Json field is called Settlements...
You could rename the field in your class;
public class OrderFund
{
public int OrderID { get; set; }
public int BrokerID { get; set; }
public string SettlementMethod { get; set; }
public List<SettlementSap> Settlements { get; set; }
}
or add a [JsonProperty("Settlements")]
attribute to the field like so;
public class OrderFund
{
public int OrderID { get; set; }
public int BrokerID { get; set; }
public string SettlementMethod { get; set; }
[JsonProperty("Settlements")]
public List<SettlementSap> SettlementsSap { get; set; }
}

You just use a function of Visual Studio which convert your json into a model class
Goto: Edit -> Paste special -> Paste JSON as Class
The model class created by this feature will solve your problem
So, visiblely, you must rename SettlementsSap by Settlements
public class OrderFund
{
public string settlementMethod { get; set; }
public int BrokerID { get; set; }
public int OrderID { get; set; }
public Settlement[] Settlements { get; set; }
}
public class Settlement
{
public string SapMonetaryAccountNo { get; set; }
public string SapMonetaryAccountType { get; set; }
public string SapMonetaryAccountOffice { get; set; }
}

The problem is with the naming. In the JSON, the name is Settlements. But in the class definition of OrderFund it is named as SettlementsSap

Unable to deserialize JSON in c#

I am getting the below JSON in response from a REST API.
{
"data":{
"id":123,
"zoneid":"mydomain.com",
"parent_id":null,
"name":"jaz",
"content":"172.1 6.15.235",
"ttl":60,
"priority":null,
"type":"A",
"regions":[
"global"
],
"system_record":false,
"created_at":"2017-09-28T12:12:17Z",
"updated_at":"2017-09-28T12:12:17Z"
}
}
and trying to resolve using below code but that doesn't result in a correctly deserialized type.
var model = JsonConvert.DeserializeObject<ResponseModel>(response);
below is a class according the field I received in JSON response.
public class ResponseModel
{
public int id { get; set; }
public string zone_id { get; set; }
public int parent_id { get; set; }
public string name { get; set; }
public string content { get; set; }
public int ttl { get; set; }
public int priority { get; set; }
public string type { get; set; }
public string[] regions { get; set; }
public bool system_record { get; set; }
public DateTime created_at { get; set; }
public DateTime updated_at { get; set; }
}
What is missing?

You're missing a wrapper class.
public class Wrapper
{
public ResponseModel data {get;set}
}
and then do:
var model = JsonConvert.DeserializeObject<Wrapper>(response).data;
to get the instance of your ResponseModel out the data property.
You can deduct this from your json:
{ "data":
{ "id":123, /*rest omitted */ }
}
The type that will receive this JSON needs to have a property named data. The suggested Wrapper class acts as that type.

According to json2csharp website, your model seems to be incorrect. Try this one :
public class ResponseModel
{
public int id { get; set; }
public string zoneid { get; set; }
public object parent_id { get; set; }
public string name { get; set; }
public string content { get; set; }
public int ttl { get; set; }
public object priority { get; set; }
public string type { get; set; }
public List<string> regions { get; set; }
public bool system_record { get; set; }
public DateTime created_at { get; set; }
public DateTime updated_at { get; set; }
}
public class RootObject
{
public ResponseModel data { get; set; }
}

Here a cool trick you can do in Visual Studio 2015-2017 where it generates the the correct class if you just copy the JSON (ctrl + c).
You need to create a new class in visual studio and once inside the class go to Edit menu -> Paste special -> paste JSON As Classes.
Steps to generate json class
This will generate the C# object for that json for you and save you all the hassle :)

Your model does not match your response - it matches the data property. Simply wrap another object round it
public class ResponseData
{
public ResponseModel Data {get; set; {
}
and then
var model = JsonConvert.DeserializeObject<ResponseData>(response);