Azure-Funktionen: Fehlertyp: Ausnahme: System.Text.Json.JsonException: Die Eingabe enthält keine JSON-Token ⇐ C#

[Anonymous]

Ich erhalte die folgende Ausnahme, wenn ich JsonSerializer.Deserialize in meiner Azure-Funktion verwende. Ich habe zu Testzwecken eine kleine Azure-Funktion erstellt, die immer mit der gleichen Ausnahme fehlschlägt. Ist es nicht möglich, JsonSerializer.Deserialize in meiner Funktion DeleteAccountSendEmail zu verwenden?
Was ist der einfachste Weg, dieses Problem zu lösen, wenn ich JsonSerializer.Deserialize nicht verwenden kann, weil ich in dieser Zeile immer eine Ausnahme erhalte (in meinem Projekt in Visual Studio Code ist es Zeile 444):

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FunctionExecutionContext context = JsonSerializer.Deserialize(await req.ReadAsStringAsync());

Vollständiger Code:

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using System;
using System.Threading.Tasks;
using System.Text.Json;
using System.Collections.Generic;
using PlayFab;
using PlayFab.AdminModels;
using System.IO;
using System.Net;
using PlayFab.Samples;
using System.Linq;
using Microsoft.Azure.Functions.Worker;
using Microsoft.Azure.Functions.Worker.Http;
using Microsoft.Extensions.Logging;

namespace My.Functions
{
public class Result
{
public bool FunctionSuccessful { get; set; }
public string Errorline1 { get; set; }
public string Errorline2 { get; set; }
public string Errorline3 { get; set; }
public string Errorline4 { get; set; }
public string Errorline5 { get; set; }
public string Errorline6 { get; set; }
public bool Isexpired { get; set; }
public bool Isbanned { get; set; }
public bool Zummenuweiterleitenmoeglich { get; set; }
public string Entityid { get; set; }
public string Entitytype { get; set; }
public string Playersessionticket { get; set; }
public string Playfabid { get; set; }
public DateTime Playersessionticketexpdate { get; set; }
}

public class NewFunction
{
private readonly ILogger log;

public NewFunction(ILogger logger)
{
log = logger;
}

[Function("DeleteAccountSendEmail")]
public async Task DeleteAccountSendEmail(
[HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = null)] HttpRequestData req)
{
FunctionExecutionContext context = JsonSerializer.Deserialize(await req.ReadAsStringAsync());
var args = context.FunctionArgument;
string language = args["Language"];
log.LogInformation($"MyLanguage = {language}");
string loginemail = args["Loginemail"];
log.LogInformation($" = {loginemail}");

bool updateaccountrecsuccessful = false;
string errorline1 = string.Empty;
string errorline2 = string.Empty;
string errorline3 = string.Empty;
string errorline4 = string.Empty;
string errorline5 = string.Empty;
string errorline6 = string.Empty;
bool isbanned = false;
bool isexpired = false;

log.LogInformation($"FunctionSuccessful: = {updateaccountrecsuccessful}");
var result1 = new Result
{
FunctionSuccessful = updateaccountrecsuccessful,
Errorline1 = string.Empty,
Errorline2 = string.Empty,
Errorline3 = string.Empty,
Errorline4 = string.Empty,
Errorline5 = string.Empty,
Errorline6 = string.Empty,
Isexpired = isexpired,
Isbanned = isbanned
};
var res1 = req.CreateResponse(HttpStatusCode.OK);
res1.Headers.Add("Content-Type", "application/json");
await res1.WriteStringAsync(JsonSerializer.Serialize(result1));
return res1;
}
}
}

Fehler:

Executing 'Functions.DeleteAccountSendEmail' (Reason='Diese Funktion wurde programmgesteuert über die Host-APIs aufgerufen.', Id=d09b0bb2-5bde-49fe-8a48-846a2e98fd29)
Die Eingabe enthält kein JSON Token. Es wurde erwartet, dass die Eingabe mit einem gültigen JSON-Token beginnt, wenn isFinalBlock „true“ ist. Zeilennummer: 0 | BytePositionInLine: 0.
Ergebnis: Fehlertyp: Ausnahme: System.Text.Json.JsonException: Die Eingabe enthält keine JSON-Token. Es wurde erwartet, dass die Eingabe mit einem gültigen JSON-Token beginnt, wenn isFinalBlock „true“ ist. Pfad: $ | Zeilennummer: 0 | BytePositionInLine: 0. ---> System.Text.Json.JsonReaderException: Die Eingabe enthält keine JSON-Token. Es wurde erwartet, dass die Eingabe mit einem gültigen JSON-Token beginnt, wenn isFinalBlock „true“ ist. Zeilennummer: 0 | BytePositionInLine: 0. bei System.Text.Json.ThrowHelper.ThrowJsonReaderException(Utf8JsonReader& json, ExceptionResource resources, Byte nextByte, ReadOnlySpan

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1 bytes) at System.Text.Json.Utf8JsonReader.Read() at System.Text.Json.Serialization.JsonConverter

1.ReadCore(Utf8JsonReader& Reader, JsonSerializerOptions Optionen, ReadStack& Status) --- Ende des inneren Ausnahme-Stack-Trace --- bei System.Text.Json.ThrowHelper.ReThrowWithPath(ReadStack& Status, JsonReaderException ex) bei System.Text.Json.Serialization.JsonConverter

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1.ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state) at System.Text.Json.JsonSerializer.ReadFromSpan[TValue](ReadOnlySpan

1 utf8Json, JsonTypeInfo

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1 jsonTypeInfo, Nullable

1 currentByteCount) bei System.Text.Json.JsonSerializer.ReadFromSpan[TValue](ReadOnlySpan

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1 json, JsonTypeInfo

1 jsonTypeInfo) unter System.Text.Json.JsonSerializer.Deserialize[TValue](String json, JsonSerializerOptions Optionen) unter My.Functions.NewFunction.DeleteAccountSendEmail(HttpRequestData req) in C:\Users\Name\Documents\NewAzureFunctionsDevelopment\NewFunction.cs:Zeile 444 unter NewAzureFunctions.DirectFunctionExecutor.ExecuteAsync(FunctionContext context) in C:\Users\Name\Documents\NewAzureFunctionsDevelopment\obj\Release\net8.0\Microsoft.Azure.Functions.Worker.Sdk.Generators\Microsoft.Azure.Functions.Worker.Sdk.Generators.FunctionExecutorGenerator\GeneratedFunctionExecutor.g.cs:line 52 at Microsoft.Azure.Functions.Worker.OutputBindings.OutputBindingsMiddleware.Invoke(FunctionContext context, FunctionExecutionDelegate next) in D:\a_work\1\s\src\DotNetWorker.Core\OutputBindings\OutputBindingsMiddleware.cs:Zeile 13 um Microsoft.Azure.Functions.Worker.FunctionsApplication.InvokeFunctionAsync(FunctionContext context) in D:\a_work\1\s\src\DotNetWorker.Core\FunctionsApplication.cs:line 96 bei Microsoft.Azure.Functions.Worker.Handlers.InvocationHandler.InvokeAsync(InvocationRequest request) in D:\a_work\1\s\src\DotNetWorker.Grpc\Handlers\InvocationHandler.cs:line 88 Stack: bei System.Text.Json.ThrowHelper.ReThrowWithPath(ReadStack& state, JsonReaderException ex) bei System.Text.Json.Serialization.JsonConverter

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1.ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state) at System.Text.Json.JsonSerializer.ReadFromSpan[TValue](ReadOnlySpan

1 utf8Json, JsonTypeInfo

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1 jsonTypeInfo, Nullable

1 currentByteCount) bei System.Text.Json.JsonSerializer.ReadFromSpan[TValue](ReadOnlySpan

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1 json, JsonTypeInfo

1 jsonTypeInfo) unter System.Text.Json.JsonSerializer.Deserialize[TValue](String json, JsonSerializerOptions Optionen) unter My.Functions.NewFunction.DeleteAccountSendEmail(HttpRequestData req) in C:\Users\Name\Documents\NewAzureFunctionsDevelopment\NewFunction.cs:Zeile 444 unter NewAzureFunctions.DirectFunctionExecutor.ExecuteAsync(FunctionContext context) in C:\Users\Name\Documents\NewAzureFunctionsDevelopment\obj\Release\net8.0\Microsoft.Azure.Functions.Worker.Sdk.Generators\Microsoft.Azure.Functions.Worker.Sdk.Generators.FunctionExecutorGenerator\GeneratedFunctionExecutor.g.cs:line 52 at Microsoft.Azure.Functions.Worker.OutputBindings.OutputBindingsMiddleware.Invoke(FunctionContext context, FunctionExecutionDelegate next) in D:\a_work\1\s\src\DotNetWorker.Core\OutputBindings\OutputBindingsMiddleware.cs:Zeile 13 um Microsoft.Azure.Functions.Worker.FunctionsApplication.InvokeFunctionAsync(FunctionContext context) in D:\a_work\1\s\src\DotNetWorker.Core\FunctionsApplication.cs:line 96 bei Microsoft.Azure.Functions.Worker.Handlers.InvocationHandler.InvokeAsync(InvocationRequest request) in D:\a_work\1\s\src\DotNetWorker.Grpc\Handlers\InvocationHandler.cs:line 88

Ich verwende diesen Code, um meine Azure-Funktion aufzurufen:

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public static async Task  DeleteAccountSendEmailAzure(this string language, string loginemail, string sessionticket, string deviceid, string entityid, string entitytype)
{
bool addedcredentials = false;
string errorline1 = string.Empty;
string errorline2 = string.Empty;
string errorline3 = string.Empty;
string errorline4 = string.Empty;
string errorline5 = string.Empty;
string errorline6 = string.Empty;
bool isbanned = false;
bool isexpired = false;

var result = await PlayFabCloudScriptAPI.ExecuteFunctionAsync(new ExecuteFunctionRequest()
{
Entity = new PlayFab.CloudScriptModels.EntityKey()
{
Id = entityid,
Type = entitytype,
},
FunctionName = "DeleteAccountSendEmail",
FunctionParameter = new { SessionTicket = sessionticket, Deviceid = deviceid, Loginemail = loginemail, Language = language },
GeneratePlayStreamEvent = true
});

if (result.Error != null)
{
var errors = OnPlayFabError(result.Error, language);
errorline1 = errors[0];
errorline2 = errors[1];
errorline3 = errors[2];
errorline4 = errors[3];
errorline5 = errors[4];
errorline6 = errors[5];

if (result.Error.Error == PlayFabErrorCode.NotAuthenticated)
{
isexpired = true;
}

if (result.Error.Error == PlayFabErrorCode.AccountBanned)
{
isbanned = true;
}
}
else
{
var data = PlayFab.PluginManager.GetPlugin(PluginContract.PlayFab_Serializer).DeserializeObject(result.Result.FunctionResult.ToString());
if (data.TryGetValue("functionSuccessful", out object a))
{
addedcredentials = Convert.ToBoolean(a);
}
if (data.TryGetValue("errorline1", out object b))
{
errorline1 = Convert.ToString(b);
}
if (data.TryGetValue("errorline2", out object c))
{
errorline2 = Convert.ToString(c);
}
if (data.TryGetValue("errorline3", out object d))
{
errorline3 = Convert.ToString(d);
}
if (data.TryGetValue("errorline4", out object e))
{
errorline4 = Convert.ToString(e);
}
if (data.TryGetValue("errorline5", out object f))
{
errorline5 = Convert.ToString(f);
}
if (data.TryGetValue("errorline6", out object g))
{
errorline6 = Convert.ToString(g);
}
if (data.TryGetValue("isexpired", out object h))
{
isexpired = Convert.ToBoolean(h);
}
if (data.TryGetValue("isbanned", out object i))
{
isbanned = Convert.ToBoolean(i);
}
}
return (isbanned, isexpired, addedcredentials, errorline1, errorline2, errorline3, errorline4, errorline5, errorline6);
}

BEARBEITEN:
Ich habe erneut versucht, meine Azure-Funktion aufzurufen, und hier ist, was ich in meinem PlayFab-Konto gefunden habe:

{
"SchemaVersion": "2.0.1",
"FullName": {
"Namespace": "playfab.functions",
"Name": "function_executed"
},
"Id": "ee1b53290a8a4cc9af3558058b92abb5",
"Timestamp": "2025-12-30T22:41:18.2403127Z",
"Entity": {
"Id": "E90B78808A2382E0",
"Typ": "title_player_account"
},
"EntityProfile": null,
"Originator": {
"Id": "E90B78808A2382E0",
"Typ": "title_player_account"
},
"OriginInfo": {
"Id": null,
"Timestamp": null,
"CustomTags": null,
"Key": null
},
"Context": null,
"Payload": „{“Source“API“, „FunctionName“ „DeleteAccountSendEmail“, „ExecutionTimeMilliseconds“:0, „Result“: {“ErrorCode“: „CloudScriptAzureFunctionsHTTPRequestError“, „Message“: „Aufruf
der Cloud-Skriptfunktion „DeleteAccountSendEmail“ ist mit HTTP-Status „InternalServerError“ und Antworttext fehlgeschlagen />","ErrorAndMessage":{"Item1": "CloudScriptAzureFunctionsHTTPRequestError", "Item2": Der Aufruf
der Cloud-Skriptfunktion "DeleteAccountSendEmail" ist mit dem HTTP-Status "InternalServerError" und dem Antworttext fehlgeschlagen. "}},"ResultTooLarge":false}",
"EntityLineage": {
"namespace": "4CE2E85814BA15CA",
"title": "XXXXX",
"master_player_account": "57440D2996790D06",
"title_player_account": "E90B78808A2382E0"
},
"PayloadContentType": 1,
"ExperimentVariants": null

BEARBEITEN:
Ich habe meinen Code geändert, aber log.LogInformation($"req = {s}"); Zeigt die Inhalts-/Funktionsparameter nicht im Azure-Portal an. Wie kann ich die Funktionsparameter (SessionTicket, Deviceid, Loginemail, Language) im Azure-Portal anzeigen? Ich möchte nur herausfinden, ob die Funktionsparameter korrekt sind? Aber normalerweise sollten sie korrekt sein.

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 [Function("DeleteAccountSendEmail")]
public async Task DeleteAccountSendEmail(
[HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = null)] HttpRequestData req)
{
var s = await req.ReadAsStringAsync();
log.LogInformation($"req = {s}");
//       FunctionExecutionContext context = JsonSerializer.Deserialize(await req.ReadAsStringAsync());
//     var args = context.FunctionArgument;
//       string language = args["Language"];
//     log.LogInformation($"MyLanguage = {language}");
//     string loginemail = args["Loginemail"];
//   log.LogInformation($" = {loginemail}");

bool updateaccountrecsuccessful = false;
string errorline1 = string.Empty;
string errorline2 = string.Empty;
string errorline3 = string.Empty;
string errorline4 = string.Empty;
string errorline5 = string.Empty;
string errorline6 = string.Empty;
bool isbanned = false;
bool isexpired = false;

log.LogInformation($"FunctionSuccessful: = {updateaccountrecsuccessful}");
var result1 = new Result
{
FunctionSuccessful = updateaccountrecsuccessful,
Errorline1 = string.Empty,
Errorline2 = string.Empty,
Errorline3 = string.Empty,
Errorline4 = string.Empty,
Errorline5 = string.Empty,
Errorline6 = string.Empty,
Isexpired = isexpired,
Isbanned = isbanned
};
var res1 = req.CreateResponse(HttpStatusCode.OK);
res1.Headers.Add("Content-Type", "application/json");
await res1.WriteStringAsync(JsonSerializer.Serialize(result1));
return res1;
}