I got this strange API response from one external service:
{emplooye: "Michael",age:"25",attachments:[{idAttachment: "23",attachmentPath:"C://Users/1"},{idAttachment: "24",attachmentPath:"C://Users/2"}]},{emplooye: "John",age:"30",attachments:{idAttachment: "25",attachmentPath:"C://Users/3"}}
Has anyone ever faced a situation where sometimes the "Attachment" property can be an array, sometimes it can be an object? I created a class to manipulate the data, but when I find an object, the code breaks.
I'm doing this in C#.
Class Used
public class Attachments
{
public string idAttachment{ get; set; }
public string attachmentPath{ get; set; }
}
public class Root
{
public string emplooye {get; set;}
public string age {get;set}
public List<Attachments> attachments { get; set; } = new List<Attachments>();
}
your json is not even close to json, should be something like this
var json = "[{\"emplooye\":\"Michael\",\"age\":\"25\",\"attachments\":[{\"idAttachment\":\"23\",\"attachmentPath\":\"C://Users/1\"},{\"idAttachment\":\"24\",\"attachmentPath\":\"C://Users/2\"}]},{\"emplooye\":\"John\",\"age\":\"30\",\"attachments\":{\"idAttachment\":\"25\",\"attachmentPath\":\"C://Users/3\"}}]";
Using Newtonsoft.Json you can create a JsonConstructor
using Newtonsoft.Json;
List<Data> data= JsonConvert.DeserializeObject<List<Data>>(json);
public class Data
{
public string emplooye { get; set; }
public string age { get; set; }
public List<Attachments> attachments { get; set; }
[JsonConstructor]
public Data(JToken attachments)
{
if (attachments.Type.ToString() == "Array")
this.attachments = attachments.ToObject<List<Attachments>>();
else
this.attachments = new List<Attachments> { attachments.ToObject<Attachments>() };
}
public Data() {}
}
public class Attachments
{
public string idAttachment { get; set; }
public string attachmentPath { get; set; }
}
You can use Newtonsoft to parse to a JToken which will handle the typing for you, but with the downside of not having a stable and predictable class to deserialize to automatically
Then, you would want to check its type, which returns a JTokenType enum
Once you know what the underlying types are, marshal the data into your DTO classes
JToken responseJT = JToken.Parse(json); //json string
if (responseJT.Type == JTokenType.Array)
//its an array, handle as needed ...
else if (responseJT.Type == JTokenType.Object)
//its an object, handle as needed ...
Personally, I would keep the attachments property as a List<Attachments> and if the JToken has a JSON object I would just set it as the [0] index of that property. This way things stay consistent and you can use LINQ on that property with ease
This question already has answers here:
How to auto-generate a C# class file from a JSON string [closed]
(3 answers)
Closed 3 years ago.
I am attempting to deserialize a Json object that was returned from a web API with the structure as follows.
Here is my class structure in which the object is to be Deserialized into...
public class CandidateJson
{
public string response { get; set; }
//public string result { get; set; }
public Result result { get; set; }
public string Candidates { get; set; }
public List<row> rows { get; set; }
}
public class Result
{
public string result { get; set; }
public string uri { get; set; }
}
public class row
{
public string no { get; set; }
public List<FL> FL { get; set; }
}
public class FL
{
public string val { get; set; }
public string content { get; set; }
}
I am using the following line of code to Deserialized with no success....
var json = JsonConvert.DeserializeObject<CandidateJson>(JsonResult);
Upon execution of this line of code, I am prompted with the following error...
Unexpected character encountered while parsing value: {. Path 'response', line 1, position 13.
I would appreciate any assistance with this issue.
Please let me know if any additional information is needed.
Here is the raw JSON string:
{"response":{"result":{"Candidates":{"row":[
{"no":"1","FL":[{"val":"CANDIDATEID","content":"508304000012555617"},{"val":"Candidate ID","content":"ZR_129661_CAND"},{"val":"First Name","content":"PRODUCTION"},{"val":"Last Name","content":"TEST"},{"val":"Email","content":"patricia.conley#ampcorporate.com"},{"val":"Phone","content":"815-543-2109"},{"val":"Mobile","content":"815-555-5555"},{"val":"Street","content":"555 Test Ave"},{"val":"City","content":"DeKalb"},{"val":"State","content":"IL"},{"val":"Zip Code","content":"60115"},{"val":"SMCREATORID","content":"508304000000490014"},{"val":"Created By","content":"AMP Support IT Team"},{"val":"MODIFIEDBY","content":"508304000000227003"},{"val":"Modified By","content":"Nikki Bowman"},{"val":"Created Time","content":"2019-12-17 08:38:25"},{"val":"Updated On","content":"2019-12-20 15:23:10"},{"val":"Last Activity Time","content":"2019-12-20 15:23:10"},{"val":"SMOWNERID","content":"508304000000490014"},{"val":"Candidate Owner","content":"AMP Support IT Team"},{"val":"Source","content":"Non-Employee Referral"},{"val":"Email Opt Out","content":"false"},{"val":"Is Locked","content":"false"},{"val":"Is Unqualified","content":"false"},{"val":"Is Attachment Present","content":"false"},{"val":"Candidate Status","content":"Sales Training Scheduled"},{"val":"Career Page Invite Status","content":"0"},{"val":"Extension","content":"5555"},{"val":"Sales Training Date_ID","content":"508304000011808848"},{"val":"Sales Training Date","content":"2019-12-11 Digital Sales Training"},{"val":"Start Date","content":"2019-12-17"},{"val":"Candidate Job Category","content":"Print + Digital Outside"},{"val":"District Sales Manager","content":"Luke Wasowski"},{"val":"College Graduate","content":"false"},{"val":"Recruiter Initials","content":"NKB"},{"val":"Unit/Apt/Ste","content":"Apt 5"},{"val":"Hourly Rate","content":"5.00"},{"val":"Work State","content":"Illinois"},{"val":"Full Time/Part Time","content":"FTR"},{"val":"Work Email Address","content":"Nikki.Bowman#ampcorporate.com"},{"val":"EEO Class","content":"1.1"}]},
{"no":"2","FL":[{"val":"CANDIDATEID","content":"508304000011834365"},{"val":"Candidate ID","content":"ZR_125018_CAND"},{"val":"First Name","content":"Jennifer"},{"val":"Last Name","content":"Pedersen"},{"val":"Email","content":"jennyped248_hwo#indeedemail.com"},{"val":"Mobile","content":"+18157517187"},{"val":"City","content":"Genoa"},{"val":"State","content":"IL"},{"val":"Zip Code","content":"60135"},{"val":"Country","content":"United States"},{"val":"Experience in Years","content":"8"},{"val":"Current Employer","content":"WALMART"},{"val":"Current Job Title","content":"MOD TEAM MEMBER"},{"val":"Skill Set","content":"quick and exceptional customer experience, Helping and Advising Customers, Basic Word Processing, Communication Skills, Customer Service, Data Entry, Hard-Working, Intermediate Word Processing, Organisational Skills, Teamwork, Time Management, outstanding communication skills, Microsoft Word, Microsoft Excel, Microsoft Excel 2000, Microsoft Office, Microsoft Outlook, Microsoft PowerPoint, basic scheduling"},{"val":"SMCREATORID","content":"508304000000562001"},{"val":"Created By","content":"Matt Chenoweth"},{"val":"MODIFIEDBY","content":"508304000008810064"},{"val":"Modified By","content":"HR Department"},{"val":"Created Time","content":"2019-12-02 12:25:53"},{"val":"Updated On","content":"2019-12-12 09:04:51"},{"val":"Last Activity Time","content":"2019-12-12 09:04:51"},{"val":"SMOWNERID","content":"508304000000562001"},{"val":"Candidate Owner","content":"Matt Chenoweth"},{"val":"Source","content":"Indeed Resume"},{"val":"Email Opt Out","content":"false"},{"val":"Is Locked","content":"false"},{"val":"Is Unqualified","content":"false"},{"val":"Is Attachment Present","content":"true"},{"val":"Candidate Status","content":"Hired - AMP Office"},{"val":"Career Page Invite Status","content":"0"},{"val":"Source By","content":"Applied by Candidate"},{"val":"EMPID","content":"JFP147"},{"val":"Candidate Job Category","content":"Office - Digital Verification"},{"val":"College Graduate","content":"false"}]
}]}}
,"uri":"/recruit/private/json/Candidates/searchRecords"}}
I haven't tested it, but by the looks of it, your code should look like:
public class CandidateJson
{
public Response response { get; set; }
}
public class Response
{
public Result result { get; set; }
public string uri { get; set; }
}
public class Result
{
public Candidate Candidates { get; set; }
}
public class Candidate
{
public List<Row> row { get; set; }
}
public class Row
{
public string no { get; set; }
public List<FL> FL { get; set; }
}
public class FL
{
public string val { get; set; }
public string content { get; set; }
}
Note: You might want to use int or decimal instead of string for val and no, but there is not enough information for me to assert that.
I have seen some other questions like this, but those are quite complex JSON data's that have objects within objects. Although the JSON I'm working with is never static, I doubt it's as complex as those. Also, it's my first time using JSON with C# so I'm a little clueless.
What I'm trying to achieve is to separate the data that is received from an API that I prompt using WebRequest in C#.
{
"johhny.debt": {
"id":35187540,
"name":"johnny.debt",
"profileIconId":786,
"Level":30,
"revisionDate":1428019045000
}
}
The returned JSON data is in a fashion like thereof.
I want to be able to access all of the properties of the above string in the following manner:
ID :
Name:
~~
~~
~~
... and so forth.
I'm assuming some type of class has to be made for this?
All help is appreciated, thank you all in advance.
Install Json.Net from Nuget
Install-Package Newtonsoft.Json
https://www.nuget.org/packages/Newtonsoft.Json/
Declare class for inner object ({"id":..., "name": ... }):
public class InnerObject
{
[JsonProperty("id")]
public int Id { get; set; }
[JsonProperty("name")]
public string Username { get; set; }
[JsonProperty("profileIconId")]
public int ProfileIconId { get; set; }
[JsonProperty("level")]
public int Level { get; set; }
[JsonProperty("revisionDate")]
public string RevisionDate { get; set; }
}
As you can see you can specify rename mapping from json fields to .Net object properties using JsonPropertyAttribute.
Read your json to Dictionary<string,InnerObject> and get value of "johhny.debt" key:
var dict = JsonConvert.DeserializeObject<Dictionary<string, InnerObject>>(jsonText);
var johhny = dict["johhny.debt"];
Or if your need always to parse exact json property 'johhny.debt', you could create root object class:
public class RootObject
{
[JsonProperty("johhny.debt")]
public InnerObject JohhnyDept { get; set; }
}
And deserialize it:
var root = JsonConvert.DeserializeObject<RootObject>(jsonText);
var johhny = root.JohhnyDebt;
Just Create a class like this
public class RootObject
{
public int Id { get; set; }
public string name { get; set; }
public int profileIconId { get; set; }
public int Level { get; set; }
public string revisionDate { get; set; }
}
then install json.Net and this code to your main method
var jsonObject=JsonConvert.DeserializeObject<RootObject>(jsonText);
That's all
Update
var obj = JObject.Parse(json);
var RootObject = new RootObject()
{
Id = (int)obj["johhny.debt"]["id"],
Level = (int)obj["johhny.debt"]["Level"],
name = (string)obj["johhny.debt"]["name"],
profileIconId = (int)obj["johhny.debt"]["profileIconId"],
revisionDate = (string)obj["johhny.debt"]["revisionDate"]
};
I have figured out how to populate a custom class from XML data, but I ran into an issue along the way. Things were working perfectly with my existing method of populating data until I was thrown a bit of a curve ball. The new schema I was sent is similar to this:
<ITEM_REPLY>
<TRAN_ID>1320691307345</TRAN_ID>
<REPLY_CODE>0</REPLY_CODE>
<UNIT_PRICE>8.2784</UNIT_PRICE>
<SUP_LOCS>
<SUP_LOC>
<SUP_LOC_ID>001134</SUP_LOC_ID>
<COUNTRY_ID>USA</COUNTRY_ID>
<QTY_AVL>47.000</QTY_AVL>
<ITEM_UOM>EA</ITEM_UOM>
</SUP_LOC>
<SUP_LOC>
<SUP_LOC_ID>006817</SUP_LOC_ID>
<COUNTRY_ID>USA</COUNTRY_ID>
<QTY_AVL>20.000</QTY_AVL>
<ITEM_UOM>EA</ITEM_UOM>
</SUP_LOC>
</SUP_LOCS>
<MESSAGE />
<QTY_BREAKS />
</ITEM_REPLY>
Pretty standard XML schema, problem is I'm not sure how to populate my custom class with it. Here's what I do have:
static void Main(string[] args)
{
var order = ConvertXMLMessage<ItemReply>(request);
}
protected static T ConvertXMLMessage<T>(String xmlData) where T : class, new()
{
var xml = new XmlDocument();
xml.LoadXml(xmlData);
var serializer = new System.Xml.Serialization.XmlSerializer(typeof(T));
using (var xmlReader = new XmlNodeReader(xml.DocumentElement))
{
T work = (T)(serializer.Deserialize(xmlReader));
return work;
}
}
public class ItemReply
{
[XmlElement("ITEM_REPLY")]
public ItemAvlReply ITEM_REPLY { get; set; }
}
public class ItemAvlReply
{
[XmlElement("TRAN_ID")]
public string TRAN_ID { get; set; }
[XmlElement("REPLY_CODE")]
public string REPLY_CODE { get; set; }
[XmlElement("UNIT_PRICE")]
public string UNIT_PRICE { get; set; }
[XmlElement("SUP_LOCS")]
public SupplierLocations SUP_LOCS;
[XmlElement("MESSAGE")]
public string MESSAGE { get; set; }
[XmlElement("QTY_BREAKS")]
public string QTY_BREAKS { get; set; }
}
public class SupplierLocations
{
[XmlElement("SUP_LOC")]
public List<SupplierLocation> SUP_LOC;
}
public class SupplierLocation
{
[XmlElement("SUP_LOC_ID")]
public string SUP_LOC_ID { get; set; }
[XmlElement("COUNTRY_ID")]
public string COUNTRY_ID { get; set; }
[XmlElement("QTY_AVL")]
public string QTY_AVL { get; set; }
[XmlElement("ITEM_UOM")]
public string ITEM_UOM { get; set; }
}
This works perfectly minus the List<Item> part. I'm not overly experienced with LINQ and I'm not sure how to go about declaring a sub array in my class via this statement. I am also open to a different approach from creating the List<Item> part, I'm just not sure where to start otherwise. Is there a better approach for what I'm need to do? Is there an easy solution I am just unaware of in LINQ?
Here's a simple way to do it, assuming the example XML file you provided has typos. I assumed the OrderId has a closing tag, and that the closing tag for Items should be /Items.
Here's the version of the xml I used:
<Order>
<TransactionID>123</TransactionID>
<OrderID>1</OrderID>
<Items Number="2">
<Item>
<ItemName>Test</ItemName>
<Color>Red</Color>
</Item>
<Item>
<ItemName>Test1</ItemName>
<Color>Blue</Color>
</Item>
</Items>
</Order>
Here's the code to read/write the XML: (the xml variable is a String)
var order = ConvertXMLMessage<Order>(xml);
WriteXMLFile<Order>(order, #"test.xml");
Here's the ConvertXMLMessage and WriteXMLFile functions:
protected static T ConvertXMLMessage<T>(String xmlData) where T : class, new()
{
var xml = new XmlDocument();
xml.LoadXml(xmlData);
var serializer = new System.Xml.Serialization.XmlSerializer(typeof(T));
using (var xmlReader = new XmlNodeReader(xml.DocumentElement))
{
T work = (T)(serializer.Deserialize(xmlReader));
return work;
}
}
protected static void WriteXMLFile<T>(T item, String saveLocation) where T : class, new()
{
System.Xml.Serialization.XmlSerializer writer = new System.Xml.Serialization.XmlSerializer(typeof(T));
System.IO.StreamWriter file = new System.IO.StreamWriter(saveLocation);
writer.Serialize(file, item);
file.Close();
}
and here's the class structure:
public class Order
{
[XmlElement("TransactionID")]
public string TransactionId { get; set; }
[XmlElement("OrderID")]
public string OrderId { get; set; }
[XmlElement("Items")]
public ItemsContainer Items;
}
public class ItemsContainer
{
[XmlAttribute("Number")]
public Int32 Number { get; set; }
[XmlElement("Item")]
public List<Item> Items;
}
public class Item
{
[XmlElement("ItemName")]
public string ItemName { get; set; }
[XmlElement("Color")]
public string Color { get; set; }
}
As you'll notice I added some attributes to let the XML parser know how to handle the class when it's converting from/to the XML. I also added another small class called "ItemsContainer" just to hold the details on the Items tag. If you didn't need the "Number" attribute, then you could probably find a way to do away with this. However, this should get you in the right direction.
The example I provided is a simple version of how I usually handle the situation, obviously there's some improvements you can make depending on your needs.
Edit
I changed the Item class to use ItemName instead of TransactionId. It was an oversight on my part.
Edit 2
Here's the corrections you need to make to the newly posted code. The reason the Order class worked in the previous example was it matched the root XML element. You're new XML does align with the base class. So we need to add in a couple more attributes to make this work. You can also remove your ItemReply class. It's not needed.
So here's the new classes:
[XmlRoot("ITEM_REPLY")]
public class ItemAvlReply
{
[XmlElement("TRAN_ID")]
public string TRAN_ID { get; set; }
[XmlElement("REPLY_CODE")]
public string REPLY_CODE { get; set; }
[XmlElement("UNIT_PRICE")]
public string UNIT_PRICE { get; set; }
[XmlElement("SUP_LOCS")]
public SupplierLocations SUP_LOCS;
[XmlElement("MESSAGE")]
public string MESSAGE { get; set; }
[XmlElement("QTY_BREAKS")]
public string QTY_BREAKS { get; set; }
}
public class SupplierLocations
{
[XmlElement("SUP_LOC")]
public List<SupplierLocation> SUP_LOC;
}
public class SupplierLocation
{
[XmlElement("SUP_LOC_ID")]
public string SUP_LOC_ID { get; set; }
[XmlElement("COUNTRY_ID")]
public string COUNTRY_ID { get; set; }
[XmlElement("QTY_AVL")]
public string QTY_AVL { get; set; }
[XmlElement("ITEM_UOM")]
public string ITEM_UOM { get; set; }
}
Everything else should remain the same. The parsing/converting the XML to classes should work without any changes.
I am new to working with json - I am working with an existing json data structure and trying to output the data, however part of the existing data structure has me stumped.
The following is my json data:
{"supplier":
{
"supplierid":3590,
"code":"ENCLES",
"name":"Les Miserables",
"analyses":[],
"amenities":[],
"info":
"{\"Supplier\":
{
\"Name\":\"Les Miserables\",
\"LastUpdate\":\"2011-11-01T22:16:06Z\",
\"Address3\":\"London\",
\"Address2\":\"51 Shaftesbury Avenue\",
\"PostCode\":\"W1D 6BA\",
\"Address1\":\"Queen's Theatre\",
\"Address4\":\"\",
\"Address5\":\"\",
\"SupplierId\":3590,
\"SupplierCode\":\"ENCLES\"
}
}",
...
}
The bit that has me stumped is the info data - it is another nested json string.
My class is:
public class TheatreListing
{
public supplier supplier;
}
public class supplier
{
public int? supplierid { get; set; }
public string code { get; set; }
public string name { get; set; }
public listingInfo info { get; set; }
}
public class listingInfo
{
public Address Supplier { get; set; }
}
public class Address
{
public string Address1 { get; set; }
public string Address2 { get; set; }
public string Address3 { get; set; }
public string Address4 { get; set; }
public string Address5 { get; set; }
public string PostCode { get; set; }
}
My code to try and access the data is:
TheatreListing tl = Json.Decode<TheatreListing>(json);
StringBuilder sbb = new StringBuilder();
sbb.Append("Name = " + tl.supplier.name.ToString());
sbb.Append("<br />Supplier ID = " + tl.supplier.supplierid.ToString());
sbb.Append("<br />Code = " + tl.supplier.code.ToString());
sbb.Append("<br />Address = " + tl.supplier.info.Supplier.Address2.ToString());
litOutput.Text += sbb.ToString();
The error message I am getting is:
Cannot convert object of type 'System.String' to type 'listingInfo'
Can anyone please guide me on the error of my ways here ?
Cheers
Nigel
I recommend looking at a couple of things:
1) Use json2csharp to generate your c# classes from your existing json
2) Use json.net to deserialize your json, works like a champ!
The problem is inside the line
TheatreListing tl = Json.Decode<TheatreListing>(json);
I think the conversion to TheatreListing is failed for your current json.
Why dont you try using JavascriptSerializer and see whether it works or not.
JavaScriptSerializer js = new JavaScriptSerializer();
TheatreListing tree = js.Deserialize <TheatreListing>(json);