Questions tagged [json-serialization]
302 questions
288
votes
4 answers
What is deserialize and serialize in JSON?
I have seen the terms "deserialize" and "serialize" with JSON. What do they mean?

coderex
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179
votes
9 answers
How do I serialize a C# anonymous type to a JSON string?
I'm attempting to use the following code to serialize an anonymous type to JSON:
var serializer = new DataContractJsonSerializer(thing.GetType());
var ms = new MemoryStream();
serializer.WriteObject(ms, thing);
var json =…

JC Grubbs
- 39,191
- 28
- 66
- 75
68
votes
4 answers
Invalid conversion from throwing function of type (_,_,_) throws -> Void to non-throwing function type (NSData?, NSURLResponse?, NSError?) -> Void
I have written this code:
func getjson() {
let urlPath = "https://api.whitehouse.gov/v1/petitions.json?limit=100"
let url = NSURL(string: urlPath)
let session = NSURLSession.sharedSession()
let task =…

Martin Mikusovic
- 1,002
- 2
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- 14
39
votes
3 answers
JavaScriptSerializer is not allowed in .net core project?
I am working in .net core project. I want to serialize the objects using JavaScriptSerializer.
JavaScriptSerializer Serializer = new JavaScriptSerializer();
I added the namespace using System.Web.Script.Serialization;. It throws errors. I googled…

Nivitha Gopalakrishnan
- 619
- 2
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- 21
38
votes
5 answers
Make names of named tuples appear in serialized JSON responses
Situation: I have multiple Web service API calls that deliver object structures. Currently, I declare explicit types to bind those object structures together. For the sake of simplicity, here's an…

Quality Catalyst
- 6,531
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28
votes
4 answers
Flag to ignore serialization of property build_runner
Is there a way to ignore the serialization of a property within a JsonSerializable class?
I'm using build_runner to generate the mapping code.
One way to achieve this is by commenting the mapping for that specific property within the .g.dart-file…

Alex
- 487
- 1
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- 19
25
votes
14 answers
System.Text.Json.JsonException: The input does not contain any JSON tokens
I'm just trying to use a Http POST method in a Blazor app through
public async Task CreateUnit(UnitEntity unit)
{
await _http.PostJsonAsync("api/units", unit);
}
_http and myObject have been defined elsewhere, but I'm getting this…

Broad3857
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14
votes
3 answers
Json serialization of nested dataclasses
I would need to take the question about json serialization of @dataclass from Make the Python json encoder support Python's new dataclasses a bit further: consider when they are in a nested structure.
Consider:
import json
from attr import…

WestCoastProjects
- 58,982
- 91
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- 560
13
votes
1 answer
ASP.NET Web API: JSON Serializing Circular References
I am retrieving a JSON object graph via ASP.NET Web API. I'm trying to access the properties from a child entity. When looking at the browser's console, however, it is showing a reference ($ref) to the object, instead of serializing the properties…

Erkan Demir
- 785
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12
votes
3 answers
net core web api json serialization - need fields prefixed with $
I'm using net core web api and need to return a payload with property name "$skip". I tried using the DataAnnotations:
public class ApiResponseMessage
{
[Display(Name ="$skip", ShortName = "$skip")]
public int Skip { get; set; }
…

ericsson007
- 131
- 1
- 1
- 4
11
votes
1 answer
Parse List using json_serializable library in Flutter
Consider the following json:
[
{
"id": 1
"name": "foo"
},
{
"id": 1
"name": "foo"
}
]
I am trying to parse this using json_serializable library.
json.decode(response.body) returns List.
but the json_serializable auto-generates…

Akshar Patel
- 8,998
- 6
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11
votes
1 answer
json_serializable enum values in dart
I'm new to dart development...
I can't figure out how to use the Json_serializable package with enum types. my database has the enum values as an integer, but it looks like JSON_Serializable wants the value to be a string representation of the enum…

cjmarques
- 632
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8
votes
2 answers
Specifying JsonSerializerOptions in .NET 6 isolated Azure Function
I'm trying to call a Web API from code in an Azure Function that I've just ported to .NET 6 (isolated hosting model). I took the chance of the migration to get rid of the RestSharp and Json.NET dependencies, now only just using HttpClient and…

marc_s
- 732,580
- 175
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- 1,459
7
votes
1 answer
Serialising BigInteger using System.Text.Json
I'm serialising a BigInteger to JSON using System.Text.Json:
JsonSerializer.Serialize(new {foo = new BigInteger(ulong.MaxValue) + 1})
This results in the following…

Neo
- 4,145
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7
votes
2 answers
What's the setter of a built_value's object
I'm trying using built_value in flutter, and found if I declared a Type use built_value, I can commonly use dot syntax to assign value to it's properties:
my declaration is:
abstract class Post implements Built {
Post._();
…

walker
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