I'm trying to deserialize a json string and I'm getting the error End element 'caption' from namespace '' expected. Found element 'created_time' from namespace ''. when calling
InstagramObject test = (InstagramObject) instagramObject.ReadObject(instagramWebResponse.GetResponseStream());
The json from Instagram returns many elements but there are only a few that I need. My DataContract will be posted below.
Basically I need {data:[{caption: string, link: string, images: {...}}]}
Here's an example of the json...
{
"data": [{
"comments": {
"data": [],
"count": 0
},
"caption": {
"created_time": "1296710352",
"text": "Inside le truc #foodtruck",
"from": {
"username": "kevin",
"full_name": "Kevin Systrom",
"type": "user",
"id": "3"
},
"id": "26621408"
},
"likes": {
"count": 15,
"data": [{
"username": "mikeyk",
"full_name": "Mike Krieger",
"id": "4",
"profile_picture": "..."
}, {...subset of likers...}]
},
"link": "http://instagr.am/p/BWrVZ/",
"user": {
"username": "kevin",
"profile_picture": "http://distillery.s3.amazonaws.com/profiles/profile_3_75sq_1295574122.jpg",
"id": "3"
},
"created_time": "1296710327",
"images": {
"low_resolution": {
"url": "http://distillery.s3.amazonaws.com/media/2011/02/02/6ea7baea55774c5e81e7e3e1f6e791a7_6.jpg",
"width": 306,
"height": 306
},
"thumbnail": {
"url": "http://distillery.s3.amazonaws.com/media/2011/02/02/6ea7baea55774c5e81e7e3e1f6e791a7_5.jpg",
"width": 150,
"height": 150
},
"standard_resolution": {
"url": "http://distillery.s3.amazonaws.com/media/2011/02/02/6ea7baea55774c5e81e7e3e1f6e791a7_7.jpg",
"width": 612,
"height": 612
}
},
"type": "image",
"filter": "Earlybird",
"tags": ["foodtruck"],
"id": "22721881",
"location": {
"latitude": 37.778720183610183,
"longitude": -122.3962783813477,
"id": "520640",
"street_address": "",
"name": "Le Truc"
}
}]
}
and here's my DataContract...
[DataContract]
public class InstagramObject {
[DataMember(Name = "data")]
public IEnumerable<InstagramData> instagramData { get; set; }
}
[DataContract]
public class InstagramData {
[DataMember(Name = "images")]
public List<InstagramImage> instagramImages { get; set; }
[DataMember(Name = "caption")]
public string caption { get; set; }
[DataMember(Name = "link")]
public string link { get; set; }
}
[DataContract]
public class InstagramImage {
[DataMember(Name = "low_resolution")]
public InstagramImageInfo lowResolutionImage { get; set; }
[DataMember(Name = "thumbnail")]
public InstagramImageInfo thumbnail { get; set; }
[DataMember(Name = "standard_resolution")]
public InstagramImageInfo standardResolution { get; set; }
}
[DataContract]
public class InstagramImageInfo {
[DataMember(Name = "url")]
public string url { get; set; }
[DataMember(Name = "width")]
public int width { get; set; }
[DataMember(Name = "height")]
public int height { get; set; }
}
In the data contract caption is declared as a string, but in the JSON caption is a record with various fields - caption should be declared to be an object with a compatible structure:
[DataContract]
public class InstagramCaption {
[DataMember(Name = "text")]
public string Text {get; set;}
}
. . .
[DataMember(Name = "caption")]
public InstagramCaption caption { get; set; }
. . .
No need to declare those clases If you want to go with Json.Net + Linq
var obj = (JObject)JsonConvert.DeserializeObject(json);
var result = obj["data"]
.Select(x => new {
Caption = (string)x["caption"]["text"],
Link = (string)x["link"],
Images = x["images"].Children()
.Select(y=>(string)y.First()["url"]).ToArray()
})
.ToArray();
Related
I tried to send a Dictionary.
This is the structure of my Dictionary:
var gridsAndCountriesByShipper = new Dictionary<Organisation, List<Grid>>();
And this is the class which the namespace appears instead of the object value:
namespace ez.webservice.PublicRestApi.DTO.References
{
[DataContract(Name = "organisation", Namespace = "")]
public class Organisation
{
[DataMember(Name = "id")]
public int Id { get; set; }
[DataMember(Name = "longName")]
public string LongName { get; set; }
[DataMember(Name = "shortName")]
public string ShortName { get; set; }
}
}
Finally this is the result when I send this object:
return Ok(gridsAndCountriesByShipper);
{
"ez.webservice.PublicRestApi.DTO.References.Organisation": [
{
"owner": {
"$id": "1",
"id": 2,
"longName": null,
"shortName": "Test"
},
"calendar": {
"id": 3,
"name": null,
"dotNetName": null,
"mySqlName": null,
"offset": 0
},
"country": {
"id": 13,
"name": "France",
"alpha2": "FR",
"alpha3": "FRA",
"grids": [],
"logo": {
"id": 13,
"name": "France",
"shortName": "FR"
}
},
"countryFlag": null,
"flag": "",
"granularity": "DAY",
I didn't find a solution.
Your Organisation doesn't override ToString() method and the default behavior is to return the class name with namespace
im facing a problem with probably selfreference Looping:
Model:
public class ProtectedAccount
{
public int Id { get; set; }
[DatabaseGenerated(DatabaseGeneratedOption.Computed)]
public DateTime Created { get; private set; }
public DateTime? Changed { get; set; }
public bool Disabled { get; set; }
public virtual ICollection<ProtectedAccountMember> Members { get; set; }
public virtual ProtectedAccountType Type { get; set; }
}
public class ProtectedAccountMember
{
public int Id { get; set; }
[StringLength(300)]
public string Name { get; set; }
[Index]
public virtual ProtectedAccount ProtectedAccount { get; set; }
}
Controller:
[ResponseType(typeof(ProtectedAccount))]
[Route("ProtectedAccounts/{id}/Members")]
[HttpGet]
public IHttpActionResult GetProtectedAccountMembers(int id)
{
var protectedAccount = db.ProtectedAccounts.Find(id);
if (protectedAccount == null)
{
return NotFound();
}
return Ok(protectedAccount.Members.ToList());
}
the data wich i receive for an GET seems to Loop recursive through all navigations:
[
{
"ProtectedAccount": {
"Members": [
{
"Id": 2,
"Name": "XXX, XX",
},
{
"Id": 3,
"Name": "XX, XX",
}
],
"Type": null,
"Id": 25,
"ObjectGUID": "76bf65e7-af60-4fe8-b3e1-90afbfd65b65",
"Name": "XXX",
},
"Id": 1,
"Name": "test",
},
{
"ProtectedAccount": {
"Members": [
{
"Id": 1,
"Name": "test",
},
{
"Id": 3,
"Name": "XX, XX",
"SamAccountName": "XX",
"Disabled": false
}
],
"Type": null,
"Id": 25,
"ObjectGUID": "76bf65e7-af60-4fe8-b3e1-90afbfd65b65",
"Name": "XXXX",
},
"Id": 2,
"Name": "XX, XX",
},
{
"ProtectedAccount": {a
"Members": [
{
"Id": 1,
"Name": "test",
"SamAccountName": "XXX",
"Disabled": false
},
{
"Id": 2,
"Name": "XX, XX",
"SamAccountName": "XX",
"Disabled": false
}
],
"Type": null,
"Id": 25,
"ObjectGUID": "76bf65e7-af60-4fe8-b3e1-90afbfd65b65",
"Name": "XXX",
},
"Id": 3,
"Name": "XX, XX",
}
]
There is only one "ProtectedAccount" in the database. DO i have to use DTO to overcome this issue? I tried some configuration via the json formatsettings but didnt get any better results.
From your code, you are only returing the protectedAccount.Members, hence you could do a projection query as below
var results = ctx.ProtectedAccountMembers
.Where(member => member.ProtectedAccount.Id == protectedAccount.Id)
.Select(member => new { member.Id, member.Name }).ToList();
I'm currently trying to read Json file (named initial_data.json) which reside in the folder DataModels in my Project folder. The problem I'm having is it won't read the file. I have tried the following code to read the file to json string (which I will use it to deserialize later, so I've tried to display it into resultTextBlock) and nothing has came out.
Here's my Json file format
{
"brands": [
{
"id": "AUD",
"name": "AUDI",
"sort": "99",
"active": true
},
{
"id": "BEN",
"name": "MERCEDES-BENZ",
"sort": "6",
"active": true
},
{
"id": "BMW",
"name": "BMW",
"sort": "7",
"active": true
},
{
"id": "CHE",
"name": "CHEVROLET",
"sort": "8",
"active": true
}
],
"models": [
{
"id": "100",
"name": "CIVIC",
"brandID": "HON",
"size": null,
"year": "-",
"active": true
},
{
"id": "101",
"name": "CRV",
"brandID": "HON",
"size": null,
"year": "-",
"active": true
},
{
"id": "102",
"name": "CRVEXI",
"brandID": "HON",
"size": null,
"year": "-",
"active": true
},
{
"id": "103",
"name": "GDYSSEY",
"brandID": "HON",
"size": null,
"year": "-",
"active": true
}
]
}
Here's my json Class
public class Brand
{
[JsonProperty("id")]
public string id { get; set; }
[JsonProperty("name")]
public string name { get; set; }
[JsonProperty("sort")]
public string sort { get; set; }
[JsonProperty("active")]
public bool active { get; set; }
[JsonProperty("path")]
public string path { get; set; }
}
public class Model
{
[JsonProperty("id")]
public string id { get; set; }
[JsonProperty("name")]
public string name { get; set; }
[JsonProperty("brandID")]
public string brandID { get; set; }
[JsonProperty("size")]
public object size { get; set; }
[JsonProperty("year")]
public string year { get; set; }
[JsonProperty("active")]
public bool active { get; set; }
}
And here's how I write my reading function
private async Task readJsonAsync()
{
// Notice that the write **IS** identical ... except for the serializer.
string content = String.Empty;
var myStream = await ApplicationData.Current.LocalFolder.OpenStreamForReadAsync(JSONFILENAME);
using (StreamReader reader = new StreamReader(myStream))
{
content = await reader.ReadToEndAsync();
}
resultTextBlock.Text = content;
}
Any help would be appreciated
think there might be some issue with the path you specified for the file name.
Please put your file in assets folder and follow the below code
var fileStream = File.OpenRead("Assets/" + "sampleJson.txt");//You can specify your file name here.
using (StreamReader reader = new StreamReader(fileStream))
{
var content = await reader.ReadToEndAsync();
}
I'm trying to parse out some information I've retrieved from RottenTomatoes that's in a JSON format
{
"cast": [
{
"id": "162655641",
"name": "Tom Hanks",
"characters": [
"Woody"
]
},
{
"id": "162655909",
"name": "Tim Allen",
"characters": [
"Buzz Lightyear"
]
},
{
"id": "162655020",
"name": "Joan Cusack",
"characters": [
"Jessie the Cowgirl"
]
},
{
"id": "162672460",
"name": "Ned Beatty",
"characters": [
"Lots-o'-Huggin' Bear",
"Lotso"
]
},
{
"id": "162657445",
"name": "Richard Kind",
"characters": [
"Bookworm"
]
},
{
"id": "162654813",
"name": "Erik von Detten",
"characters": [
"Sid"
]
},
{
"id": "770713272",
"name": "James Anthony Cotton",
"characters": []
}
],
"links": {
"rel": "http://api.rottentomatoes.com/api/public/v1.0/movies/770672122.json"
}
}
I'm just trying to get this code to work but I'm getting an InvalidOperationException and this error
"Type 'System.String' is not supported for deserialization of an array."
Here's my code in main
string json = File.ReadAllText("json.txt");
CastInfo castMember = new JavaScriptSerializer().Deserialize<CastInfo>(json);
Here are my classes
public class CastInfo
{
public List<CustomCastInfo> cast { get; set; }
}
public class CustomCastInfo
{
public string id { get; set; }
public string name { get; set; }
public List<string> characters { get; set; }
}
And advice? And I realize I need to do something about the "links" in the bottom, but even when I delete that it still doesn't work.
I just tried running this with the json you provided and it worked fine.
using System.Collections.Generic;
using System.IO;
using System.Web.Script.Serialization;
namespace JsonDeserialization
{
class Program
{
static void Main(string[] args)
{
string json = File.ReadAllText("json.txt");
CastInfo castMember = new JavaScriptSerializer().Deserialize<CastInfo>(json);
}
}
public class CastInfo
{
public List<CustomCastInfo> cast { get; set; }
}
public class CustomCastInfo
{
public string id { get; set; }
public string name { get; set; }
public List<string> characters { get; set; }
}
}
I am sending JSON:
[
{
"Description": "A kud ces bolje",
"ItemID": 1,
"Name": "Banane",
"NewPrice": 91.99,
"OldPrice": 161.99,
"SaleEnds": "9/1/2013",
"SaleStarts": "9/1/2012"
},
{
"Description": "Rastu na stablu",
"ItemID": 2,
"Name": "Kruske",
"NewPrice": 93.99,
"OldPrice": 117.99,
"SaleEnds": "9/1/2013",
"SaleStarts": "9/1/2012"
},
]
But I want to have a name so that it looks like
"Some_Name":[
{
"Description": "A kud ces bolje",
"ItemID": 1,
"Name": "Banane",
"NewPrice": 91.99,
"OldPrice": 161.99,
"SaleEnds": "9/1/2013",
"SaleStarts": "9/1/2012"
},
{
"Description": "Rastu na stablu",
"ItemID": 2,
"Name": "Kruske",
"NewPrice": 93.99,
"OldPrice": 117.99,
"SaleEnds": "9/1/2013",
"SaleStarts": "9/1/2012"
},
]
I return List<Item>:
[OperationContract]
[WebGet(UriTemplate = "/items/{id}", ResponseFormat = WebMessageFormat.Json)]
List<ItemService> GetItems(string id);
and the Item is:
[DataContract]
public class ItemService
{
[DataMember]
public int ItemID { get; set; }
[DataMember]
public string Name { get; set; }
[DataMember]
public string Description { get; set; }
[DataMember]
public Decimal OldPrice { get; set; }
[DataMember]
public Decimal NewPrice { get; set; }
[DataMember]
public string SaleStarts { get; set; }
[DataMember]
public string SaleEnds { get; set; }
}
You can't name the JSon data itself. You would need a small wrapper class containing the name:
class Wrapper { public Some_Name List<ItemService> {get;set;}
Wrap your list in the wrapper and return the wrapper.
The resulting JSon would be somehting like:
{
"Some_Name":[
{
"Description": "A kud ces bolje",
"ItemID": 1,
"Name": "Banane",
"NewPrice": 91.99,
"OldPrice": 161.99,
"SaleEnds": "9/1/2013",
"SaleStarts": "9/1/2012"
},
{
"Description": "Rastu na stablu",
"ItemID": 2,
"Name": "Kruske",
"NewPrice": 93.99,
"OldPrice": 117.99,
"SaleEnds": "9/1/2013",
"SaleStarts": "9/1/2012"
},
]}