I have a REST-Service build with ServicStack and in one call the user can send different types of values. So I made the property in C# of type object.
The JSON that is sent looks like this:
{"name":"ffff","params":[{"pId":1,"value":[624,625]},{"pId":2,"value":"xxx"}]}
The part "value":[624,625] results in a string object filled with "[624,625]". I was hoping to get an int-array or at least a string array, but it is plain string.
I set JsConfig.TryToParsePrimitiveTypeValues = true, but that doesn't seem to have any effect.
I tried the latest sources from github.
Can this be done with any combination of switches or must I parse this myself?
Thanks
EDIT:
Here is some testcode:
[TestMethod]
public void JsonTest()
{
string json = "{\"name\":\"ffff\",\"params\":[{\"pId\":1,\"value\":[624,625]},{\"pId\":2,\"value\":\"xxx\"}]}";
var x = JsonSerializer.DeserializeFromString<xy>(json);
Assert.AreEqual(x.Params[0].Value.GetType(), typeof(int[]));
}
public class xy
{
public string Name { get; set; }
public List<Param> Params { get; set; }
}
public class Param
{
public int PId { get; set; }
public object Value { get; set; }
}
If you change the type of "Value" to int array as follows, then ServiceStack will serialize to array of int.
public class Param
{
public int PId { get; set; }
public int[] Value { get; set; }
}
The following unit test passes:
[TestMethod]
public void JsonTest()
{
string json = "{\"name\":\"ffff\",\"params\":[{\"pId\":1,\"value\":[624,625]},{\"pId\":2,\"value\":\"xxx\"}]}";
var x = JsonSerializer.DeserializeFromString<xy>(json);
Assert.AreEqual(x.Params[0].Value.GetType(), typeof(int[]));
// Show that we have some integers
Assert.IsTrue(x.Params[0].Value.Count()>0);
}
If you cannot change the type of Value for any reason, then you can use ServiceStack.Text to serialize the string into an array as needed.
Related
I have looked at several solutions over the web on reading nested json files but I haven't found one suitable to my need. Maybe because I am new to JSON. Here is my issue:
I have the following JSON in a file:
{
"ConfigError" : {
"DateSent": "2022-04-28T14:03:16.6628493-07:00",
"ToolType": "WSM",
"IsSent": true
},
"FileCopyError" : {
"DateSent": "2022-06-14T14:03:16.6628493-07:00",
"ToolType": "RMT",
"IsSent": false
}
}
For this I have written two classes. One for the Inner object:
public class SummaryEmailStatus
{
public DateTime DateSent { get; set; }
public string ToolType { get; set; }
public bool IsSent { get; set; }
}
One for the Outer Objects:
public class SummaryEmailClass
{
SummaryEmailStatus Status { get; set; } = new SummaryEmailStatus();
}
I would like to be able to read the JSON in C#. I'm primarily concerned with the inner objects. They are of same class but they need to be used differently. So ideally I'd want a function that I can pass in "ConfigError" or "FileCopyError" into and it will return SummaryEmailStatus class object populated by the values in the JSON:
public static void ReadJasonFile(string jsonFileName, string objctName)
{
List<SummaryEmailClass> emailClassList = new List<SummaryEmailClass>();
dynamic jsonFile = JsonConvert.DeserializeObject(File.ReadAllText(jsonFileName));
SummaryEmailStatus sumclass = jsonFile[objctName];
}
But this gives me a run time error saying:
Cannot implicitly convert type "Newtonsoft.Json.Linq.JObject to SummaryEmailStatus
How can I successfully parse out the inner summaryemailstatus objects?
Additionally, I'd like to be able to create the JSON data within C#. The reason being, when I read the JSON, I will do some task and then will need to update the values of the JSON with the current timestamps. I'd imagine, I'd need to rewrite the file. How can I write a nested JSON like this in C#?
If JSON is not the best way to do this, I am open to alternatives
you can try
string json = File.ReadAllText(jsonFileName);
Dictionary<string,SummaryEmailStatus> summaryEmailStatus =
JsonConvert.DeserializeObject<Dictionary<string,SummaryEmailStatus>>(json);
you can use it
SummaryEmailStatus configError = summaryEmailStatus["ConfigError"];
if you want update data
summaryEmailStatus["ConfigError"].DateSent= DateTime.Now;
and serialize back
json = JsonConvert.SerializeObject(summaryEmailStatus);
or if you have only 2 main properties, create a class
public class SummaryEmailClass
{
SummaryEmailStatus ConfigError { get; set; }
SummaryEmailStatus FileCopyError{ get; set; }
}
and use it
SummaryEmailClass summaryEmailStatus =
JsonConvert.DeserializeObject<SummaryEmailStatusClass>(json);
SummaryEmailStatus configError = summaryEmailStatus.ConfigError;
Summary
You need to convert your JObject into the type you are expecting, as shown here:
SummaryEmailStatus sumclass = jsonFile[objctName].ToObject<SummaryEmailStatus>();
Details
jsonFile[objtName] is of type JObject. The reason is because JsonConvert.DeserializeObject has no idea that you intend to convert that into a list of SummaryEmailStatus.
Once you have your array of JObjects, you can convert that into a SummaryEmailStatus as shown in the following snippet:
public static void ReadJasonFile(string jsonFileName, string objctName)
{
List<SummaryEmailClass> emailClassList = new List<SummaryEmailClass>();
dynamic jsonFile = JsonConvert.DeserializeObject(File.ReadAllText(jsonFileName));
SummaryEmailStatus sumclass = jsonFile[objctName].ToObject<SummaryEmailStatus>();
}
Easy way is kept both objects in JSON, I rewrite your code and add root. For example, if you want to write Config Error and don't write File Copy Error, you can save one of them like null.
public class ConfigError
{
public DateTime DateSent { get; set; }
public string ToolType { get; set; }
public bool IsSent { get; set; }
}
public class FileCopyError
{
public DateTime DateSent { get; set; }
public string ToolType { get; set; }
public bool IsSent { get; set; }
}
public class Root
{
public ConfigError ConfigError { get; set; }
public FileCopyError FileCopyError { get; set; }
}
//in your method to get all data
var json = File.ReadAllText(jsonFileName);
var myDeserializedClass = JsonConvert.DeserializeObject<Root>(json);
Example change config and write to file
var json = #"{
""ConfigError"" : {
""DateSent"": ""2022-04-28T14:03:16.6628493-07:00"",
""ToolType"": ""WSM"",
""IsSent"": true
},
""FileCopyError"" : {
""DateSent"": ""2022-06-14T14:03:16.6628493-07:00"",
""ToolType"": ""RMT"",
""IsSent"": false
}
}";
var conf = JsonConvert.DeserializeObject<Root>(json);
conf.ConfigError.DateSent = DateTime.Now;
conf.ConfigError.ToolType = "New way";
conf.ConfigError.IsSent = false;
conf.FileCopyError = null;
var newJson = JsonConvert.SerializeObject(conf);
File.WriteAllText("your path", newJson);
Firstly thank you for taking the time to look at this. It's quite alot.
Question:
I'm basically trying to download a json as a string and then deserialize it to a list. The reason why is so i can then call a specific property of that list (in my case 'ips' because it's all i actually need) and insert it into a table if requirements are met.
The problem is that it moves all null values into the array. 114 columns of null, or empty array and i can't figure out why?
I think i'll attach a link to the JSON because its a massive file its here https://endpoints.office.com/endpoints/Worldwide?clientRequestId=b10c5ed1-bad1-445f-b386-b919946339a7
Here is my code:
Getters and setters for JSON
public class GetSetJsonIP {
[JsonProperty("id")]
public int id { get; set; }
[JsonProperty("serviceArea")]
public string ServiceArea { get; set; }
[JsonProperty("serviceAreaDisplayName")]
public string ServiceAreaDisplayName { get; set; }
[JsonProperty("urls")]
public IList<string> urls { get; set; }
[JsonProperty("ips")]
public IList<string> ips { get; set; }
[JsonProperty("tcpPorts")]
public string tcpPorts { get; set; }
[JsonProperty("expressRoute")]
public bool expressRoute { get; set; }
[JsonProperty("category")]
public string category { get; set; }
[JsonProperty("required")]
public bool required { get; set; }
[JsonProperty("notes")]
public string notes { get; set; }
[JsonProperty("udpPorts")]
public string udpPorts { get; set; }
}
List class
public class ConvertJsonIP{
public List<GetSetJsonIP> jsonIpConvert { get; set; }
public List<GetSetJsonIP> jsonIPConvert = new List<GetSetJsonIP>();
}
3.I download the JSON using an empty string called o365IP
o365IP = wc.DownloadString(wc.BaseAddress + "/endpoints/Worldwide?clientRequestId=b10c5ed1-bad1-445f-b386-b919946339a7");
I deserialize using my List to a seperate var
var o365IpVerion = JsonConvert.DeserializeObject<List<ConvertJsonIP>>(o365IP);
This code shows no errors. so i can only assume its a logical one on my part. It should be noted that i had to put the <List< in to stop an error stating that it couldnt convert an object to an array.
Seriously, i've been stuck on this for 3 days so any help on this would be greatly appreciated! Thanks in advance!
the json you have is a list of objects and each of these objects conform to GetSetJsonIp. You should deserialize using List<GetSetJsonIP>
var o365IpVerion = JsonConvert.DeserializeObject<List<GetSetJsonIP>>(o365IP);
public class GetJsonIP works fine.
The reason you must Deserialize into a List<> is because the json object starts with a bracket making the entire object a List or array.
var O365IpVersion = JsonConvert.DeserializeObject<List<GetJsonIP>(O365IP);
There are different ways to fetch the value of a certain property. If you just need ips and want to check the value then update it, then you could loop:
JArray arr = JArray.Parse(O365IP);
foreach (JObject obj in arr.Children<JObject>())
{
foreach (JPRoperty prop in obj.Properties().Where(x => x.Name == "ips"))
{
//use prop.Value and perform tasks
}
}
Or just simply loop like this:
for (int i = 0; i < O365IpVersion.Count; i++)
{
//use O365IpVersion.ElementAt(i).ips
I have a list of objects in below json format. I would like to deserialize using below code. It is throwing unable to convert to object error. I have tried below three options, but didnt help. jsoninput is a IEnumerable<string>converted into json object using ToJson().
Error:
{"Error converting value \"{\"id\":\"11ef2c75-9a6d-4cef-8163-94daad4f8397\",\"name\":\"bracing\",\"lastName\":\"male\",\"profilePictureUrl\":null,\"smallUrl\":null,\"thumbnailUrl\":null,\"country\":null,\"isInvalid\":false,\"userType\":0,\"profilePrivacy\":1,\"chatPrivacy\":1,\"callPrivacy\":0}\" to type 'Api.Models.UserInfo'. Path '[0]', line 1, position 271."}
var requests1 = JsonConvert.DeserializeObject<UsersInfo>(jsoninput);
var requests2 = JsonConvert.DeserializeObject<IEnumerable<UserInfo>>(jsoninput);
var requests3 = JsonConvert.DeserializeObject<List<UserInfo>>(jsoninput);
//Below are my classes,
public class UsersInfo
{
public List<UserInfo> UserInfoList { get; set; }
public UsersInfo()
{
UserInfoList = new List<UserInfo>();
}
}
public class UserInfo
{
public string Id { set; get; }
public string Name { set; get; }
public string LastName { set; get; }
public string ProfilePictureUrl { set; get; }
public string SmallUrl { set; get; }
public string ThumbnailUrl { get; set; }
public string Country { set; get; }
public bool IsInvalid { set; get; }
}
Below is my json object,
["{\"id\":\"11ef2c75-9a6d-4cef-8163-94daad4f8397\",\"name\":\"bracing\",\"lastName\":\"male\",\"profilePictureUrl\":null,\"smallUrl\":null,\"thumbnailUrl\":null,\"country\":null,\"isInvalid\":false}","{\"id\":\"318c0885-2720-472c-ba9e-1d1e120bcf65\",\"name\":\"locomotives\",\"lastName\":\"riddles\",\"profilePictureUrl\":null,\"smallUrl\":null,\"thumbnailUrl\":null,\"country\":null,\"isInvalid\":false}"]
Looping through individual items in json input and if i deserialize it like below, it works fine. But i want to deserialize the list fully. Note: jsoninput was a IEnumerable<string> before i convert in json object.
foreach (var re in jsoninput)
{
var request0 = JsonConvert.DeserializeObject<UserInfo>(re);
}
Please look at this fiddle: https://dotnetfiddle.net/XpjuL4
This is the code:
using System;
using System.Collections.Generic;
using Newtonsoft.Json;
//Below are my classes,
public class UsersInfo
{
public List<UserInfo> UserInfoList { get; set; }
public UsersInfo()
{
UserInfoList = new List<UserInfo>();
}
}
public class UserInfo
{
public string Id { set; get; }
public string Name { set; get; }
public string LastName { set; get; }
public string ProfilePictureUrl { set; get; }
public string SmallUrl { set; get; }
public string ThumbnailUrl { get; set; }
public string Country { set; get; }
public bool IsInvalid { set; get; }
}
public class Program
{
public static void Main()
{
Console.WriteLine("Hello World");
Option1();
Option2();
}
public static void Option1(){
string json = #"{""UserInfoList"":[
{""id"":""11ef2c75 - 9a6d - 4cef - 8163 - 94daad4f8397"",""name"":""bracing"",""lastName"":""male"",""profilePictureUrl"":null,""smallUrl"":null,""thumbnailUrl"":null,""country"":null,""isInvalid"":false},
{ ""id"":""318c0885-2720-472c-ba9e-1d1e120bcf65"",""name"":""locomotives"",""lastName"":""riddles"",""profilePictureUrl"":null,""smallUrl"":null,""thumbnailUrl"":null,""country"":null,""isInvalid"":false}
]}";
var obj = JsonConvert.DeserializeObject<UsersInfo>(json);
obj.UserInfoList.ForEach(e => Console.WriteLine(e.Id));
}
public static void Option2(){
string json = #"[
{""id"":""11ef2c75 - 9a6d - 4cef - 8163 - 94daad4f8397"",""name"":""bracing"",""lastName"":""male"",""profilePictureUrl"":null,""smallUrl"":null,""thumbnailUrl"":null,""country"":null,""isInvalid"":false},
{ ""id"":""318c0885-2720-472c-ba9e-1d1e120bcf65"",""name"":""locomotives"",""lastName"":""riddles"",""profilePictureUrl"":null,""smallUrl"":null,""thumbnailUrl"":null,""country"":null,""isInvalid"":false}
]";
var obj = JsonConvert.DeserializeObject<List<UserInfo>>(json);
obj.ForEach(e => Console.WriteLine(e.Id));
}
}
Both work, and are basically very close to what you are doing. You can either serialize it as a list (based on your json, I think that's the closest to your use case, and that's Option 2).
However, put extra attention to the JSON. I had to re-parse your JSON to make it work (https://jsonformatter.org/json-parser is a nice website to do it). For the sake of explaining the example, in C#, # means raw string, and in raw string, quotes are escaped with double quotes "".
I would expect that the business logic generating this JSON is not correct, if the JSON you pasted is the direct result from it.
EDIT
Given the OP's comment:
Thanks Tu.ma for your thoughts. The other method returns
IEnumerable which is nothing but
Dictionary.Where(x => x.Value == null).Select(x =>
x.Key).ToHashSet(). The values in Dictionary are -> Key
is String, Value is UserInfo object serialized. So, in that case i
should deserialize one by one? If not, i should serialize entire list
in one shot? Am i right? – Raj 12 hours ago
The problem is in the way you are generating the list of UsersInfo. The result from Dictionary<string,string>.Where(x => x.Value == null).Select(x =>
x.Key).ToHashSet() is a bunch of strings, not of objects, so you need to serialize them one by one.
If you are worried about the linearity of the approach, you could consider running through it in parallel. Of course, you need to judge if it fits your application.
var userInfoStrings = Dictionary<string,string>.Where(x => x.Value == null).Select(x => x.Key).ToHashSet();
var UserInfoList = userInfoStrings.AsParallel().Select (u => JsonConvert.DeserializeObject<UsersInfo>(u)).ToList();
I have a windows form application and would like to deserialize a JSON string that I'm getting from a web address so that I can get just two values from it, how would I go about doing this?
Below is the code I have to get the JSON string, and if you go to the URL that it's getting, you can also see the JSON string. I want to just get the item name, and current price of it. Which you can see the price under the current key.
private void GrabPrices()
{
using (WebClient webClient = new System.Net.WebClient())
{
WebClient n = new WebClient();
var json = n.DownloadString("http://services.runescape.com/m=itemdb_rs/api/catalogue/detail.json?item=1513");
string valueOriginal = Convert.ToString(json);
Console.WriteLine(json);
}
}
It's also going to be iterating through a SQLite database and getting the same data for multiple items based on the item ID, which I'll be able to do myself.
EDIT I'd like to use JSON.Net if possible, I've been trying to use it and it seems easy enough, but I'm still having trouble.
Okay so first of all you need to know your JSON structure, sample:
[{
name: "Micheal",
age: 20
},
{
name: "Bob",
age: 24
}]
With this information you can derive a C# object
public class Person
{
public string Name {get;set;}
public int Age {get;set;}
}
Now you can use JSON.NET to deserialize your JSON into C#:
var people = JsonConvert.DeserializeObject<List<Person>>(jsonString);
If you look at the original JSON it is an array of objects, to deal with this I have used List<T>.
Key things to remember, you need to have the C# object mirror in properties that of the JSON object. If you don't have a list, then you don't need List<T>.
If your JSON objects have camel casing, and you want this converted to the C# conventions, then use this:
var people = JsonConvert.DeserializeObject<List<Person>>(
jsonString,
new JsonSerializerSettings { ContractResolver = new CamelCasePropertyNamesContractResolver() });
First of all you need to create a class structure for the JSON
public class Wrapper
{
public Item item;
}
public class Item
{
public string icon { get; set; }
public string icon_large { get; set; }
public int id { get; set; }
public string type { get; set; }
public string typeIcon { get; set; }
public string name { get; set; }
public string description { get; set; }
public GrandExchange current { get; set; }
public GrandExchange today { get; set; }
public bool members { get; set; }
public GrandExchange day30 { get; set; }
public GrandExchange day90 { get; set; }
public GrandExchange day180 { get; set; }
}
public class GrandExchange
{
public string trend { get; set; }
public string price { get; set; }
}
Then you need to serialize the current item into a Wrapper class
var wrapper = JsonConvert.DeserializeObject<Wrapper>(json);
Then if you want multiple items in a list, you can do so with this code :
// Items to find
int[] itemIds = {1513, 1514, 1515, 1516, 1517};
// Create blank list
List<Item> items = new List<Item>();
foreach (int id in itemIds)
{
var n = new WebClient();
// Get JSON
var json = n.DownloadString(String.Format("http://services.runescape.com/m=itemdb_rs/api/catalogue/detail.json?item={0}", id));
// Parse to Item object
var wrapper = JsonConvert.DeserializeObject<Wrapper>(json);
// Append to list
items.Add(wrapper.item);
}
// Do something with list
It is also worth noting that Jagex limit how many times this API can be called from a certain IP within a time frame, going over that limit will block your IP for a certain amount of time. (Will try and find a reference for this)
My application is asp.net. I have to send some values back to server. For this I create a object serialize it and send it to server. At server I try to de-serialize it
Following is my code
[Serializable]
public class PassData
{
public PassData()
{
}
public List<testWh> SelectedId { get; set; }
public string SelectedControlClientId { get; set; }
public string GroupTypeId { get; set; }
public string SectionTypeId { get; set; }
}
[Serializable]
public class testWh
{
public testWh()
{
}
public string Id { get; set; }
}
JavaScriptSerializer serializer = new JavaScriptSerializer();
//this can not serialize the SelectedId and the count remains 0
PassData data = serializer.Deserialize<PassData>(jsonString);
//this serialize in an anonymous object with key value pair
var data2 = serializer.DeserializeObject(textHiddenArguments.Text);
Following is my Json Serialized String
{
"SelectedId":{"0":"ABCD","1":"JKLM"},
"SelectedControlClientId":"YTUTOOO",
"GroupTypeId":3,
"SectionTypeId":"1"
}
quotes escaped string
"{\"SelectedId\":{\"0\":\"ABCD\",\"1\":\"JKLM\"},\"SelectedControlClientId\":\"YTUTOOO\",\"GroupTypeId\":3,\"SectionTypeId\":\"1\"}"
My Problem is Selected Id is array of testWH object. But when I try to desrialize it, the SelectedId property of PassData which is list does not get serialized and count remains zero.
I tried using array instead of List, which gave an exception "no parameter less constructor..."
Could any one explain the what I am doing wrong here ?
The key problem here is that the JSON doesn't match the objects you have constructed. You can see this by writing the data you want and serializing:
var obj = new PassData
{
SelectedId = new List<testWh>
{
new testWh { Id = "ABCD"},
new testWh { Id = "JKLM"}
},
GroupTypeId = "3",
SectionTypeId = "1",
SelectedControlClientId = "YTUTOOO"
};
string jsonString = serializer.Serialize(obj);
which gives JSON like:
{"SelectedId":[{"Id":"ABCD"},{"Id":"JKLM"}],
"SelectedControlClientId":"YTUTOOO","GroupTypeId":"3","SectionTypeId":"1"}
So now you need to decide which you want to change; the JSON or the classes. The following alternative class works fine with your original JSON, for example:
public class PassData
{
public Dictionary<string,string> SelectedId { get; set; }
public string SelectedControlClientId { get; set; }
public string GroupTypeId { get; set; }
public string SectionTypeId { get; set; }
}