JsonSerializer.SerializeAsync Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Overloads
| SerializeAsync(Stream, Object, Type, JsonSerializerOptions, CancellationToken) |
Asynchronously converts the value of a specified type to UTF-8 encoded JSON text and writes it to the specified stream. |
| SerializeAsync(PipeWriter, Object, Type, JsonSerializerContext, CancellationToken) |
Converts the provided value to UTF-8 encoded JSON text and write it to the PipeWriter. |
| SerializeAsync(Stream, Object, Type, JsonSerializerContext, CancellationToken) |
Converts the provided value to UTF-8 encoded JSON text and write it to the Stream. |
| SerializeAsync(Stream, Object, JsonTypeInfo, CancellationToken) |
Converts the provided value to UTF-8 encoded JSON text and writes it to the Stream. |
| SerializeAsync(PipeWriter, Object, JsonTypeInfo, CancellationToken) |
Converts the provided value to UTF-8 encoded JSON text and write it to the PipeWriter. |
| SerializeAsync(PipeWriter, Object, Type, JsonSerializerOptions, CancellationToken) |
Converts the provided value to UTF-8 encoded JSON text and write it to the PipeWriter. |
| SerializeAsync<TValue>(PipeWriter, TValue, JsonSerializerOptions, CancellationToken) |
Converts the provided value to UTF-8 encoded JSON text and write it to the PipeWriter. |
| SerializeAsync<TValue>(PipeWriter, TValue, JsonTypeInfo<TValue>, CancellationToken) |
Converts the provided value to UTF-8 encoded JSON text and write it to the PipeWriter. |
| SerializeAsync<TValue>(Stream, TValue, JsonSerializerOptions, CancellationToken) |
Asynchronously converts a value of a type specified by a generic type parameter to UTF-8 encoded JSON text and writes it to a stream. |
| SerializeAsync<TValue>(Stream, TValue, JsonTypeInfo<TValue>, CancellationToken) |
Converts the provided value to UTF-8 encoded JSON text and write it to the Stream. |
SerializeAsync(Stream, Object, Type, JsonSerializerOptions, CancellationToken)
Asynchronously converts the value of a specified type to UTF-8 encoded JSON text and writes it to the specified stream.
[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")]
public static System.Threading.Tasks.Task SerializeAsync(System.IO.Stream utf8Json, object? value, Type inputType, System.Text.Json.JsonSerializerOptions? options = default, System.Threading.CancellationToken cancellationToken = default);public static System.Threading.Tasks.Task SerializeAsync(System.IO.Stream utf8Json, object? value, Type inputType, System.Text.Json.JsonSerializerOptions? options = default, System.Threading.CancellationToken cancellationToken = default);[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")]
public static System.Threading.Tasks.Task SerializeAsync(System.IO.Stream utf8Json, object? value, Type inputType, System.Text.Json.JsonSerializerOptions? options = default, System.Threading.CancellationToken cancellationToken = default);public static System.Threading.Tasks.Task SerializeAsync(System.IO.Stream utf8Json, object value, Type inputType, System.Text.Json.JsonSerializerOptions options = default, System.Threading.CancellationToken cancellationToken = default);[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")>]
static member SerializeAsync : System.IO.Stream * obj * Type * System.Text.Json.JsonSerializerOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Taskstatic member SerializeAsync : System.IO.Stream * obj * Type * System.Text.Json.JsonSerializerOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")>]
static member SerializeAsync : System.IO.Stream * obj * Type * System.Text.Json.JsonSerializerOptions * System.Threading.CancellationToken -> System.Threading.Tasks.TaskPublic Function SerializeAsync (utf8Json As Stream, value As Object, inputType As Type, Optional options As JsonSerializerOptions = Nothing, Optional cancellationToken As CancellationToken = Nothing) As TaskPublic Shared Function SerializeAsync (utf8Json As Stream, value As Object, inputType As Type, Optional options As JsonSerializerOptions = Nothing, Optional cancellationToken As CancellationToken = Nothing) As TaskParameters
- utf8Json
- Stream
The UTF-8 stream to write to.
- value
- Object
The value to convert.
- inputType
- Type
The type of the value to convert.
- options
- JsonSerializerOptions
Options to control serialization behavior.
- cancellationToken
- CancellationToken
A token that may be used to cancel the write operation.
Returns
A task that represents the asynchronous write operation.
- Attributes
Exceptions
inputType is not compatible with value.
utf8Json or inputType is null.
There is no compatible JsonConverter for inputType or its serializable members.
The cancellation token was canceled. This exception is stored into the returned task.
Remarks
For more information, see How to serialize and deserialize JSON.
This method stores in the task it returns all non-usage exceptions that the method's synchronous counterpart can throw. If an exception is stored into the returned task, that exception will be thrown when the task is awaited. Usage exceptions, such as ArgumentException, are still thrown synchronously. For the stored exceptions, see the exceptions thrown by Serialize(Stream, Object, Type, JsonSerializerOptions).
Applies to
SerializeAsync(PipeWriter, Object, Type, JsonSerializerContext, CancellationToken)
- Source:
- JsonSerializer.Write.Pipe.cs
- Source:
- JsonSerializer.Write.Pipe.cs
- Source:
- JsonSerializer.Write.Pipe.cs
Converts the provided value to UTF-8 encoded JSON text and write it to the PipeWriter.
public static System.Threading.Tasks.Task SerializeAsync(System.IO.Pipelines.PipeWriter utf8Json, object? value, Type inputType, System.Text.Json.Serialization.JsonSerializerContext context, System.Threading.CancellationToken cancellationToken = default);static member SerializeAsync : System.IO.Pipelines.PipeWriter * obj * Type * System.Text.Json.Serialization.JsonSerializerContext * System.Threading.CancellationToken -> System.Threading.Tasks.TaskPublic Function SerializeAsync (utf8Json As PipeWriter, value As Object, inputType As Type, context As JsonSerializerContext, Optional cancellationToken As CancellationToken = Nothing) As TaskParameters
- utf8Json
- PipeWriter
The UTF-8 PipeWriter to write to.
- value
- Object
The value to convert.
- inputType
- Type
The type of the value to convert.
- context
- JsonSerializerContext
A metadata provider for serializable types.
- cancellationToken
- CancellationToken
The CancellationToken that can be used to cancel the write operation.
Returns
A task that represents the asynchronous write operation.
Exceptions
inputType is not compatible with value.
utf8Json, inputType, or context is null.
There is no compatible JsonConverter for inputType or its serializable members.
Applies to
SerializeAsync(Stream, Object, Type, JsonSerializerContext, CancellationToken)
Converts the provided value to UTF-8 encoded JSON text and write it to the Stream.
public static System.Threading.Tasks.Task SerializeAsync(System.IO.Stream utf8Json, object? value, Type inputType, System.Text.Json.Serialization.JsonSerializerContext context, System.Threading.CancellationToken cancellationToken = default);static member SerializeAsync : System.IO.Stream * obj * Type * System.Text.Json.Serialization.JsonSerializerContext * System.Threading.CancellationToken -> System.Threading.Tasks.TaskPublic Function SerializeAsync (utf8Json As Stream, value As Object, inputType As Type, context As JsonSerializerContext, Optional cancellationToken As CancellationToken = Nothing) As TaskParameters
- value
- Object
The value to convert.
- inputType
- Type
The type of the value to convert.
- context
- JsonSerializerContext
A metadata provider for serializable types.
- cancellationToken
- CancellationToken
The CancellationToken that can be used to cancel the write operation.
Returns
A task that represents the asynchronous write operation.
Exceptions
inputType is not compatible with value.
utf8Json, inputType, or context is null.
There is no compatible JsonConverter for inputType or its serializable members.
The cancellation token was canceled. This exception is stored into the returned task.
Remarks
This method stores in the task it returns all non-usage exceptions that the method's synchronous counterpart can throw. If an exception is stored into the returned task, that exception will be thrown when the task is awaited. Usage exceptions, such as ArgumentException, are still thrown synchronously. For the stored exceptions, see the exceptions thrown by Serialize(Stream, Object, Type, JsonSerializerContext).
Applies to
SerializeAsync(Stream, Object, JsonTypeInfo, CancellationToken)
Converts the provided value to UTF-8 encoded JSON text and writes it to the Stream.
public static System.Threading.Tasks.Task SerializeAsync(System.IO.Stream utf8Json, object? value, System.Text.Json.Serialization.Metadata.JsonTypeInfo jsonTypeInfo, System.Threading.CancellationToken cancellationToken = default);static member SerializeAsync : System.IO.Stream * obj * System.Text.Json.Serialization.Metadata.JsonTypeInfo * System.Threading.CancellationToken -> System.Threading.Tasks.TaskPublic Function SerializeAsync (utf8Json As Stream, value As Object, jsonTypeInfo As JsonTypeInfo, Optional cancellationToken As CancellationToken = Nothing) As TaskParameters
- value
- Object
The value to convert.
- jsonTypeInfo
- JsonTypeInfo
Metadata about the type to convert.
- cancellationToken
- CancellationToken
The CancellationToken that can be used to cancel the write operation.
Returns
A task that represents the asynchronous write operation.
Exceptions
utf8Json is null.
value does not match the type of jsonTypeInfo.
The cancellation token was canceled. This exception is stored into the returned task.
Applies to
SerializeAsync(PipeWriter, Object, JsonTypeInfo, CancellationToken)
- Source:
- JsonSerializer.Write.Pipe.cs
- Source:
- JsonSerializer.Write.Pipe.cs
- Source:
- JsonSerializer.Write.Pipe.cs
Converts the provided value to UTF-8 encoded JSON text and write it to the PipeWriter.
public static System.Threading.Tasks.Task SerializeAsync(System.IO.Pipelines.PipeWriter utf8Json, object? value, System.Text.Json.Serialization.Metadata.JsonTypeInfo jsonTypeInfo, System.Threading.CancellationToken cancellationToken = default);static member SerializeAsync : System.IO.Pipelines.PipeWriter * obj * System.Text.Json.Serialization.Metadata.JsonTypeInfo * System.Threading.CancellationToken -> System.Threading.Tasks.TaskPublic Function SerializeAsync (utf8Json As PipeWriter, value As Object, jsonTypeInfo As JsonTypeInfo, Optional cancellationToken As CancellationToken = Nothing) As TaskParameters
- utf8Json
- PipeWriter
The UTF-8 PipeWriter to write to.
- value
- Object
The value to convert.
- jsonTypeInfo
- JsonTypeInfo
Metadata about the type to convert.
- cancellationToken
- CancellationToken
The CancellationToken that can be used to cancel the write operation.
Returns
A task that represents the asynchronous write operation.
Exceptions
utf8Json is null.
value does not match the type of jsonTypeInfo.
Applies to
SerializeAsync(PipeWriter, Object, Type, JsonSerializerOptions, CancellationToken)
- Source:
- JsonSerializer.Write.Pipe.cs
- Source:
- JsonSerializer.Write.Pipe.cs
- Source:
- JsonSerializer.Write.Pipe.cs
Converts the provided value to UTF-8 encoded JSON text and write it to the PipeWriter.
[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")]
public static System.Threading.Tasks.Task SerializeAsync(System.IO.Pipelines.PipeWriter utf8Json, object? value, Type inputType, System.Text.Json.JsonSerializerOptions? options = default, System.Threading.CancellationToken cancellationToken = default);public static System.Threading.Tasks.Task SerializeAsync(System.IO.Pipelines.PipeWriter utf8Json, object? value, Type inputType, System.Text.Json.JsonSerializerOptions? options = default, System.Threading.CancellationToken cancellationToken = default);[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")>]
static member SerializeAsync : System.IO.Pipelines.PipeWriter * obj * Type * System.Text.Json.JsonSerializerOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Taskstatic member SerializeAsync : System.IO.Pipelines.PipeWriter * obj * Type * System.Text.Json.JsonSerializerOptions * System.Threading.CancellationToken -> System.Threading.Tasks.TaskPublic Function SerializeAsync (utf8Json As PipeWriter, value As Object, inputType As Type, Optional options As JsonSerializerOptions = Nothing, Optional cancellationToken As CancellationToken = Nothing) As TaskParameters
- utf8Json
- PipeWriter
The UTF-8 PipeWriter to write to.
- value
- Object
The value to convert.
- inputType
- Type
The type of the value to convert.
- options
- JsonSerializerOptions
Options to control the conversion behavior.
- cancellationToken
- CancellationToken
The CancellationToken that can be used to cancel the write operation.
Returns
A task that represents the asynchronous write operation.
- Attributes
Exceptions
inputType is not compatible with value.
utf8Json or inputType is null.
There is no compatible JsonConverter for inputType or its serializable members.
Applies to
SerializeAsync<TValue>(PipeWriter, TValue, JsonSerializerOptions, CancellationToken)
- Source:
- JsonSerializer.Write.Pipe.cs
- Source:
- JsonSerializer.Write.Pipe.cs
- Source:
- JsonSerializer.Write.Pipe.cs
Converts the provided value to UTF-8 encoded JSON text and write it to the PipeWriter.
[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")]
public static System.Threading.Tasks.Task SerializeAsync<TValue>(System.IO.Pipelines.PipeWriter utf8Json, TValue value, System.Text.Json.JsonSerializerOptions? options = default, System.Threading.CancellationToken cancellationToken = default);public static System.Threading.Tasks.Task SerializeAsync<TValue>(System.IO.Pipelines.PipeWriter utf8Json, TValue value, System.Text.Json.JsonSerializerOptions? options = default, System.Threading.CancellationToken cancellationToken = default);[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")>]
static member SerializeAsync : System.IO.Pipelines.PipeWriter * 'Value * System.Text.Json.JsonSerializerOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Taskstatic member SerializeAsync : System.IO.Pipelines.PipeWriter * 'Value * System.Text.Json.JsonSerializerOptions * System.Threading.CancellationToken -> System.Threading.Tasks.TaskPublic Function SerializeAsync(Of TValue) (utf8Json As PipeWriter, value As TValue, Optional options As JsonSerializerOptions = Nothing, Optional cancellationToken As CancellationToken = Nothing) As TaskType Parameters
- TValue
The type of the value to serialize.
Parameters
- utf8Json
- PipeWriter
The UTF-8 PipeWriter to write to.
- value
- TValue
The value to convert.
- options
- JsonSerializerOptions
Options to control the conversion behavior.
- cancellationToken
- CancellationToken
The CancellationToken that can be used to cancel the write operation.
Returns
A task that represents the asynchronous write operation.
- Attributes
Exceptions
utf8Json is null.
There is no compatible JsonConverter for TValue or its serializable members.
Applies to
SerializeAsync<TValue>(PipeWriter, TValue, JsonTypeInfo<TValue>, CancellationToken)
- Source:
- JsonSerializer.Write.Pipe.cs
- Source:
- JsonSerializer.Write.Pipe.cs
- Source:
- JsonSerializer.Write.Pipe.cs
Converts the provided value to UTF-8 encoded JSON text and write it to the PipeWriter.
public static System.Threading.Tasks.Task SerializeAsync<TValue>(System.IO.Pipelines.PipeWriter utf8Json, TValue value, System.Text.Json.Serialization.Metadata.JsonTypeInfo<TValue> jsonTypeInfo, System.Threading.CancellationToken cancellationToken = default);static member SerializeAsync : System.IO.Pipelines.PipeWriter * 'Value * System.Text.Json.Serialization.Metadata.JsonTypeInfo<'Value> * System.Threading.CancellationToken -> System.Threading.Tasks.TaskPublic Function SerializeAsync(Of TValue) (utf8Json As PipeWriter, value As TValue, jsonTypeInfo As JsonTypeInfo(Of TValue), Optional cancellationToken As CancellationToken = Nothing) As TaskType Parameters
- TValue
The type of the value to serialize.
Parameters
- utf8Json
- PipeWriter
The UTF-8 PipeWriter to write to.
- value
- TValue
The value to convert.
- jsonTypeInfo
- JsonTypeInfo<TValue>
Metadata about the type to convert.
- cancellationToken
- CancellationToken
The CancellationToken that can be used to cancel the write operation.
Returns
A task that represents the asynchronous write operation.
Exceptions
utf8Json is null.
Applies to
SerializeAsync<TValue>(Stream, TValue, JsonSerializerOptions, CancellationToken)
Asynchronously converts a value of a type specified by a generic type parameter to UTF-8 encoded JSON text and writes it to a stream.
[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")]
public static System.Threading.Tasks.Task SerializeAsync<TValue>(System.IO.Stream utf8Json, TValue value, System.Text.Json.JsonSerializerOptions? options = default, System.Threading.CancellationToken cancellationToken = default);public static System.Threading.Tasks.Task SerializeAsync<TValue>(System.IO.Stream utf8Json, TValue value, System.Text.Json.JsonSerializerOptions? options = default, System.Threading.CancellationToken cancellationToken = default);[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")]
public static System.Threading.Tasks.Task SerializeAsync<TValue>(System.IO.Stream utf8Json, TValue value, System.Text.Json.JsonSerializerOptions? options = default, System.Threading.CancellationToken cancellationToken = default);public static System.Threading.Tasks.Task SerializeAsync<TValue>(System.IO.Stream utf8Json, TValue value, System.Text.Json.JsonSerializerOptions options = default, System.Threading.CancellationToken cancellationToken = default);[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")>]
static member SerializeAsync : System.IO.Stream * 'Value * System.Text.Json.JsonSerializerOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Taskstatic member SerializeAsync : System.IO.Stream * 'Value * System.Text.Json.JsonSerializerOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")>]
static member SerializeAsync : System.IO.Stream * 'Value * System.Text.Json.JsonSerializerOptions * System.Threading.CancellationToken -> System.Threading.Tasks.TaskPublic Function SerializeAsync(Of TValue) (utf8Json As Stream, value As TValue, Optional options As JsonSerializerOptions = Nothing, Optional cancellationToken As CancellationToken = Nothing) As TaskPublic Shared Function SerializeAsync(Of TValue) (utf8Json As Stream, value As TValue, Optional options As JsonSerializerOptions = Nothing, Optional cancellationToken As CancellationToken = Nothing) As TaskType Parameters
- TValue
The type of the value to serialize.
Parameters
- utf8Json
- Stream
The UTF-8 stream to write to.
- value
- TValue
The value to convert.
- options
- JsonSerializerOptions
Options to control serialization behavior.
- cancellationToken
- CancellationToken
A token that may be used to cancel the write operation.
Returns
A task that represents the asynchronous write operation.
- Attributes
Exceptions
utf8Json is null.
There is no compatible JsonConverter for TValue or its serializable members.
The cancellation token was canceled. This exception is stored into the returned task.
Remarks
For more information, see How to serialize and deserialize JSON.
Applies to
SerializeAsync<TValue>(Stream, TValue, JsonTypeInfo<TValue>, CancellationToken)
Converts the provided value to UTF-8 encoded JSON text and write it to the Stream.
public static System.Threading.Tasks.Task SerializeAsync<TValue>(System.IO.Stream utf8Json, TValue value, System.Text.Json.Serialization.Metadata.JsonTypeInfo<TValue> jsonTypeInfo, System.Threading.CancellationToken cancellationToken = default);static member SerializeAsync : System.IO.Stream * 'Value * System.Text.Json.Serialization.Metadata.JsonTypeInfo<'Value> * System.Threading.CancellationToken -> System.Threading.Tasks.TaskPublic Function SerializeAsync(Of TValue) (utf8Json As Stream, value As TValue, jsonTypeInfo As JsonTypeInfo(Of TValue), Optional cancellationToken As CancellationToken = Nothing) As TaskType Parameters
- TValue
The type of the value to serialize.
Parameters
- value
- TValue
The value to convert.
- jsonTypeInfo
- JsonTypeInfo<TValue>
Metadata about the type to convert.
- cancellationToken
- CancellationToken
The CancellationToken that can be used to cancel the write operation.
Returns
A task that represents the asynchronous write operation.
Exceptions
utf8Json is null.
There is no compatible JsonConverter for TValue or its serializable members.
The cancellation token was canceled. This exception is stored into the returned task.
