I am New to JSON and API
I am trying to get some data from an API for which I have Json and want to make a class for it.when I convert it using josn2csharp I get following code. Please let me know what sholud be the proper format of my class so that it converts into json.
public class DataSet {
public string __invalid_name__-i:nil { get; set; } }
public class GenericObject {
public string __invalid_name__-xmlns:d2p1 { get; set; }
public string __invalid_name__-i:type { get; set; }
public string __invalid_name__#text { get; set; } }
public class Message {
public string __invalid_name__-i:nil { get; set; } }
public class FunctionResponse {
public string __invalid_name__-xmlns:i { get; set; }
public string __invalid_name__-xmlns { get; set; }
public DataSet DataSet { get; set; }
public GenericObject GenericObject { get; set; }
public Message Message { get; set; }
public string Success { get; set; } }
public class RootObject {
public FunctionResponse FunctionResponse { get; set; } }
use this question as reference in this I came to know how to write for
public string invalid_name#text { get; set; }
but what about others.
please help
edit 1:
{
"DataSet": {
"#nil": "true"
},
"GenericObject": {
"#type": "d2p1:boolean",
"#text": "true"
},
"Message": {
"#nil": "true"
},
"Success": "true"
}
Example:
{
"json":
{
"#thekeyinsidejsonproperty": "value"
}
}
you shoud have
public class RootObject
{
[JsonProperty("json")]
public Json jsonobj;
}
public class Json
{
[JsonProperty("#thekeyinsidejsonproperty")]
public string somepropertyname{ get; set; }
}
hope it helps! :)
Related
I have this string returned to my code behind:
string json = "[[{'nome':'joe','cpf':'54'},{'id':'8','nome':'Legendagem','valor':'5'}],[{'nome':'jane','cpf':'22'},{'id':'1','nome':'Legendagem2','valor':'6'}]]";
and I have 3 classes:
public class ItemCart
{
public UserCart user { get; set; }
public CursoCart curso { get; set; }
}
public class UserCart
{
public string nome { get; set; }
public string email { get; set; }
public string cpf { get; set; }
}
public class CursoCart
{
public string id { get; set; }
public string desc { get; set; }
public string valor { get; set; }
}
what i want is to have the class UserCart/CursoCart class populated so I can loop inside itemCart and get the values, length etc of the UserCart/CursoCart items
eg:
UserCart user1 = itemCart[0].user;
supposing that I can't change the string, I'm trying this to convert, but now working:
List<ItemCart> itemCart = JsonConvert.DeserializeObject<List<ItemCart>>(json);
thank you for any help.
As I see from your json it is an array.
The following ItemCart and Deserialization may work for you.
public class Program
{
public static void Main()
{
string json = "[[{'nome':'joe','cpf':'54'},{'id':'8','nome':'Legendagem','valor':'5'}],[{'nome':'jane','cpf':'22'},{'id':'1','nome':'Legendagem2','valor':'6'}]]";
var ItemCartList = JsonConvert.DeserializeObject<List<Item[]>>(json);
}
}
public class ItemCart
{
public Item[][] ItemList { get; set; }
}
public class Item
{
public string nome { get; set; }
public string cpf { get; set; }
public string id { get; set; }
public string valor { get; set; }
}
I have the following Json returned from iTunes (I have replaced some details for privacy such as username and review content)
{"feed":{"author":{"name":{"label":"iTunes Store"}, "uri":{"label":"http://www.apple.com/uk/itunes/"}}, "entry":[
{"author":{"uri":{"label":"https://itunes.apple.com/gb/reviews/ID"}, "name":{"label":"Username"}, "label":""}, "im:version":{"label":"3.51"}, "im:rating":{"label":"4"}, "id":{"label":"12345"}, "title":{"label":"Review title"}, "content":{"label":"Review contents", "attributes":{"type":"text"}}, "link":{"attributes":{"rel":"related", "href":"https://itunes.apple.com/gb/review?reviewid"}}, "im:voteSum":{"label":"0"}, "im:contentType":{"attributes":{"term":"Application", "label":"Application"}}, "im:voteCount":{"label":"0"}},
// more entries ...
I want to deserialize this into a class. I only need the Review Title, Review contents, and the "im:rating" (which is the number of stars). However, I'm struggling due to the nested Json and the use of keys of how to extract this data. So far I have created a class ready to deserialize, and I have AppStoreData appStoreData = JsonConvert.DeserializeObject<AppStoreData>(stringResult); to deserialize it
public class AppStoreData {
}
My problem is that I don't know what to put inside the class to get the info I need from the Json. I have tried things such as:
public string title {get; set;}
public string content {get; set;}
public string imrating {get; set;}
However this doesn't work. I also think im:rating is an invalid name in C#.
Can anyone please help? Thank you
To get around the issue with im:rating you can use a JsonProperty attribute
[JsonProperty("im:rating")]
public Id ImRating { get; set; }
The issue with converting things like Label to string property is that it's not a string but an object in the input file.
You need something like
[JsonProperty("title")]
public Id Title { get; set; }
where Id is a class
public class Id
{
[JsonProperty("label")]
public string Label { get; set; }
}
Or write a deserializer that converts it to string for you.
I would suggest trying out one of many free code generators like https://app.quicktype.io/?l=csharp or http://json2csharp.com/ to get a headstart and edit everything to your liking afterwards.
I suggest using json2csharp to convert the json to c# model and change the invalid attributes by adding JsonProperty
public class Name
{
public string label { get; set; }
}
public class Uri
{
public string label { get; set; }
}
public class Author
{
public Name name { get; set; }
public Uri uri { get; set; }
}
public class Uri2
{
public string label { get; set; }
}
public class Name2
{
public string label { get; set; }
}
public class Author2
{
public Uri2 uri { get; set; }
public Name2 name { get; set; }
public string label { get; set; }
}
public class ImVersion
{
public string label { get; set; }
}
public class ImRating
{
public string label { get; set; }
}
public class Id
{
public string label { get; set; }
}
public class Title
{
public string label { get; set; }
}
public class Attributes
{
public string type { get; set; }
}
public class Content
{
public string label { get; set; }
public Attributes attributes { get; set; }
}
public class Attributes2
{
public string rel { get; set; }
public string href { get; set; }
}
public class Link
{
public Attributes2 attributes { get; set; }
}
public class ImVoteSum
{
public string label { get; set; }
}
public class Attributes3
{
public string term { get; set; }
public string label { get; set; }
}
public class ImContentType
{
public Attributes3 attributes { get; set; }
}
public class ImVoteCount
{
public string label { get; set; }
}
public class Entry
{
public Author2 author { get; set; }
[JsonProperty(PropertyName = "im:version")]
public ImVersion imversion { get; set; }
[JsonProperty(PropertyName = "im:rating")]
public ImRating imrating { get; set; }
public Id id { get; set; }
public Title title { get; set; }
public Content content { get; set; }
public Link link { get; set; }
[JsonProperty(PropertyName = "im:voteSum")]
public ImVoteSum imvoteSum { get; set; }
[JsonProperty(PropertyName = "im:contentType")]
public ImContentType imcontentType { get; set; }
[JsonProperty(PropertyName = "im:voteCount")]
public ImVoteCount imvoteCount { get; set; }
}
public class Feed
{
public Author author { get; set; }
public List<Entry> entry { get; set; }
}
public class RootObject5
{
public Feed feed { get; set; }
}
Once the model is ready you can use JsonConvert.DeserializeObject to convert the JSON to c# object
using (StreamReader r = new StreamReader(filepath)) {
string json = r.ReadToEnd();
var newEmps = JsonConvert.DeserializeObject<RootObject5>(json);
Console.WriteLine(newEmps.feed.entry[0].imvoteCount.label);
}
I have got following JSON that should be deserialized to C# class:
{"status":"error","messages":[{"level":"error","key":"InvalidTokenError","dsc":"Invalid
token"}]}
So I have a questions what is the kind of type should be
[{"level":"error","key":"InvalidTokenError","dsc":"Invalid token"}]
?
Is this array, list or class?
You can use json2csharp.com to get the types of the JSON.
JSON:
{"status":"error","messages":[{"level":"error","key":"InvalidTokenError","dsc":"Invalid token"}]}
Here is the classes generated for your JSON:
public class Message
{
public string level { get; set; }
public string key { get; set; }
public string dsc { get; set; }
}
public class RootObject
{
public string status { get; set; }
public List<Message> messages { get; set; }
}
for JSON:
[{"level":"error","key":"InvalidTokenError","dsc":"Invalid token"}]
Type:
public class Message
{
public string level { get; set; }
public string key { get; set; }
public string dsc { get; set; }
}
You can use this site
public class Message
{
public string level { get; set; }
public string key { get; set; }
public string dsc { get; set; }
}
public class RootObject
{
public string status { get; set; }
public List<Message> messages { get; set; }
}
I'm using the Petfinder API and trying to return a root object in my C# code. I used the Json class generator to generate the classes, but the Deserialize function is returning nulls.
This is my C# code:
using (var client = new WebClient())
{
var json = new WebClient().DownloadString("http://api.petfinder.com/shelter.getPets?format=json&key=<key>&id=<id>");
Petfinder deserializedPet = JsonConvert.DeserializeObject<Petfinder>(json);
}
The Petfinder object is defined as:
internal class Petfinder
{
[JsonProperty("#xmlns:xsi")]
public string XmlnsXsi { get; set; }
[JsonProperty("lastOffset")]
public LastOffset LastOffset { get; set; }
[JsonProperty("pets")]
public Pets Pets { get; set; }
[JsonProperty("header")]
public Header Header { get; set; }
[JsonProperty("#xsi:noNamespaceSchemaLocation")]
public string XsiNoNamespaceSchemaLocation { get; set; }
}
The first few lines of the json string is as follows:
{"#encoding":"iso-8859-1","#version":"1.0","petfinder":{"#xmlns:xsi":"http://www.w3.org/2001/XMLSchema-instance","lastOffset":{"$t":"25"},"pets":{"pet":[{"options":{"option":[{"$t":"hasShots"},{"$t":"altered"},{"$t":"housetrained"}]},"breeds":{"breed":{"$t":"Domestic Medium Hair"}},"shelterPetId":{},"status":{"$t":"A"},"name":{"$t":"Jasmine"},...
If that helps at all.
I'm a newbie to json.net. What am I doing wrong?
Your class is wrong, take a look at the output from json2csharp.com for the example json you provided. Obviously the __invalid_name_$t needs to be manually fixed and the mapped using [JsonProperty].
public class LastOffset
{
public string __invalid_name__$t { get; set; }
}
public class Option
{
public string __invalid_name__$t { get; set; }
}
public class Options
{
public List<Option> option { get; set; }
}
public class Breed
{
public string __invalid_name__$t { get; set; }
}
public class Breeds
{
public Breed breed { get; set; }
}
public class ShelterPetId
{
}
public class Status
{
public string __invalid_name__$t { get; set; }
}
public class Name
{
public string __invalid_name__$t { get; set; }
}
public class Pet
{
public Options options { get; set; }
public Breeds breeds { get; set; }
public ShelterPetId shelterPetId { get; set; }
public Status status { get; set; }
public Name name { get; set; }
}
public class Pets
{
public List<Pet> pet { get; set; }
}
public class Petfinder
{
public string __invalid_name__#xmlns:xsi { get; set; }
public LastOffset lastOffset { get; set; }
public Pets pets { get; set; }
}
public class RootObject
{
public string __invalid_name__#encoding { get; set; }
public string __invalid_name__#version { get; set; }
public Petfinder petfinder { get; set; }
}
I am trying to generate C# class using the JSON string from here http://json2csharp.com/ this works fine. But I can't parse the JSON to the object generated by the website.
Here is the JSON string
{
"searchParameters":{
"key":"**********",
"system":"urn:oid:.8"
},
"message":" found one Person matching your search criteria.",
"_links":{
"self":{
"href":"https://integration.rest.api.test.com/v1/person?key=123456&system=12.4.34.."
}
},
"_embedded":{
"person":[
{
"details":{
"address":[
{
"line":["5554519 testdr"],
"city":"testland",
"state":"TT",
"zip":"12345",
"period":{
"start":"2003-10-22T00:00:00Z",
"end":"9999-12-31T23:59:59Z"
}
}
],
"name":[
{
"use":"usual",
"family":["BC"],
"given":["TWO"],
"period":{
"start":"9999-10-22T00:00:00Z",
"end":"9999-12-31T23:59:59Z"
}
}
],
"gender":{
"code":"M",
"display":"Male"
},
"birthDate":"9999-02-03T00:00:00Z",
"identifier":[
{
"use":"unspecified",
"system":"urn:oid:2.19.8",
"key":"",
"period":{
"start":"9999-10-22T00:00:00Z",
"end":"9999-12-31T23:59:59Z"
}
}
],
"telecom":[
{
"system":"email",
"value":"test#test.com",
"use":"unspecified",
"period":{
"start":"9999-10-22T00:00:00Z",
"end":"9999-12-31T23:59:59Z"
}
}
],
"photo":[
{
"content":{
"contentType":"image/jpeg",
"language":"",
"data":"",
"size":0,
"hash":"",
"title":"My Picture"
}
}
]
},
"enrolled":true,
"enrollmentSummary":{
"dateEnrolled":"9999-02-07T21:39:11.174Z",
"enroller":"test Support"
},
"_links":{
"self":{
"href":"https://integration.rest.api.test.com/v1/person/-182d-4296-90cc"
},
"unenroll":{
"href":"https://integration.rest.api.test.com/v1/person/1b018dc4-182d-4296-90cc-/unenroll"
},
"personLink":{
"href":"https://integration.rest.api.test.com/v1/person/-182d-4296-90cc-953c/personLink"
},
"personMatch":{
"href":"https://integration.rest.api.commonwellalliance.org/v1/person/-182d-4296-90cc-/personMatch?orgId="
}
}
}
]
}
}
Here is the code I use to convert to the object.
JavaScriptSerializer js = new JavaScriptSerializer();
var xx = (PersonsearchVM)js.Deserialize(jsonstr, typeof(PersonsearchVM));
Is there any other wat to generate the object and parse?
I think you have some invalid characters in your JSON string. Run it through a validator and add the necessary escape characters.
http://jsonlint.com/
You aren't casting it to the right object. Cast it to the type RootObject.
Eg
JavaScriptSerializer js = new JavaScriptSerializer();
var xx = (RootObject)js.Deserialize(jsonstr, typeof(RootObject));
The code that json 2 csharp creates is this:
public class SearchParameters
{
public string key { get; set; }
public string system { get; set; }
}
public class Self
{
public string href { get; set; }
}
public class LinKs
{
public Self self { get; set; }
}
public class Period
{
public string start { get; set; }
public string end { get; set; }
}
public class Address
{
public List<string> line { get; set; }
public string city { get; set; }
public string __invalid_name__state { get; set; }
public string zip { get; set; }
public Period period { get; set; }
}
public class PerioD2
{
public string start { get; set; }
public string end { get; set; }
}
public class Name
{
public string use { get; set; }
public List<string> family { get; set; }
public List<string> given { get; set; }
public PerioD2 __invalid_name__perio
d { get; set; }
}
public class Gender
{
public string __invalid_name__co
de { get; set; }
public string display { get; set; }
}
public class Period3
{
public string start { get; set; }
public string __invalid_name__end { get; set; }
}
public class Identifier
{
public string use
{ get; set; }
public string system { get; set; }
public string key { get; set; }
public Period3 period { get; set; }
}
public class Period4
{
public string start { get; set; }
public string end { get; set; }
}
public class Telecom
{
public string system { get; set; }
public string value { get; set; }
public string use { get; set; }
public Period4 period { get; set; }
}
public class Content
{
public string contentType { get; set; }
public string language { get; set; }
public string __invalid_name__dat
a { get; set; }
public int size { get; set; }
public string hash { get; set; }
public string title { get; set; }
}
public class Photo
{
public Content content { get; set; }
}
public class Details
{
public List<Address> address { get; set; }
public List<Name> name { get; set; }
public Gender gender { get; set; }
public string birthDate { get; set; }
public List<Identifier> identifier { get; set; }
public List<Telecom> telecom { get; set; }
public List<Photo> photo { get; set; }
}
public class EnrollmentSummary
{
public string dateEnrolled { get; set; }
public string __invalid_name__en
roller { get; set; }
}
public class Self2
{
public string href { get; set; }
}
public class UnEnroll
{
public string href { get; set; }
}
public class PersonLink
{
public string href { get; set; }
}
public class PersonMatch
{
public string href { get; set; }
}
public class Links2
{
public Self2 self { get; set; }
public UnEnroll __invalid_name__un
enroll { get; set; }
public PersonLink personLink { get; set; }
public PersonMatch personMatch { get; set; }
}
public class Person
{
public Details details { get; set; }
public bool __invalid_name__e
nrolled { get; set; }
public EnrollmentSummary enrollmentSummary { get; set; }
public Links2 _links { get; set; }
}
public class Embedded
{
public List<Person> person { get; set; }
}
public class RootObject
{
public SearchParameters searchParameters { get; set; }
public string message { get; set; }
public LinKs __invalid_name___lin
ks { get; set; }
public Embedded _embedded { get; set; }
}
The following function will convert JSON into a C# class where T is the class type.
public static T Deserialise<T>(string json)
{
T obj = Activator.CreateInstance<T>();
using (MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(json)))
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
obj = (T)serializer.ReadObject(ms); //
return obj;
}
}
You need a reference to the System.Runtime.Serialization.json namespace.
The function is called in the following manner;
calendarList = Deserialise<GoogleCalendarList>(calendarListString);
calendarlist being the C# class and calendarListString the string containing the JSON.