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Add System.Text.Json converter for EventGridEvent (#22295)
* Add System.Text.Json converter for EventGridEvent * Usings * Fix docs * Use more efficient parse
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sdk/eventgrid/Azure.Messaging.EventGrid/src/Customization/EventGridEventConverter.cs
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// Copyright (c) Microsoft Corporation. All rights reserved. | ||
// Licensed under the MIT License. | ||
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using System; | ||
using System.Text.Json; | ||
using System.Text.Json.Serialization; | ||
using Azure.Core; | ||
using Azure.Messaging.EventGrid.Models; | ||
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namespace Azure.Messaging.EventGrid | ||
{ | ||
/// <summary> | ||
/// A custom converter that attributes the <see cref="EventGridEvent"/> type. | ||
/// This allows System.Text.Json to serialize and deserialize EventGridEvent by default. | ||
/// </summary> | ||
internal class EventGridEventConverter : JsonConverter<EventGridEvent> | ||
{ | ||
/// <summary> | ||
/// Gets or sets the serializer to use for the data portion of the <see cref="EventGridEvent"/>. If not specified, | ||
/// JsonObjectSerializer is used. | ||
/// </summary> | ||
/// <inheritdoc cref="JsonConverter{EventGridEvent}.Read(ref Utf8JsonReader, Type, JsonSerializerOptions)"/> | ||
public override EventGridEvent Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) | ||
{ | ||
JsonDocument requestDocument = JsonDocument.ParseValue(ref reader); | ||
return new EventGridEvent(EventGridEventInternal.DeserializeEventGridEventInternal(requestDocument.RootElement)); | ||
} | ||
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/// <inheritdoc cref="JsonConverter{EventGridEvent}.Write(Utf8JsonWriter, EventGridEvent, JsonSerializerOptions)"/> | ||
public override void Write(Utf8JsonWriter writer, EventGridEvent value, JsonSerializerOptions options) | ||
{ | ||
JsonDocument data = JsonDocument.Parse(value.Data.ToStream()); | ||
var eventGridEventInternal = new EventGridEventInternal( | ||
value.Id, | ||
value.Subject, | ||
data.RootElement, | ||
value.EventType, | ||
value.EventTime, | ||
value.DataVersion) | ||
{ | ||
Topic = value.Topic | ||
}; | ||
((IUtf8JsonSerializable) eventGridEventInternal).Write(writer); | ||
} | ||
} | ||
} |
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