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Merge pull request #858 from aws-powertools/feature/appsync-events
chore: Feature/appsync events
2 parents e9550ff + 94fdcc2 commit 7357a5b

28 files changed

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‎docs/core/event_handler/appsync_events.md

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‎libraries/AWS.Lambda.Powertools.sln

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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AOT-Function-ILogger", "tests\e2e\functions\core\logging\AOT-Function-ILogger\src\AOT-Function-ILogger\AOT-Function-ILogger.csproj", "{7FC6DD65-0352-4139-8D08-B25C0A0403E3}"
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AWS.Lambda.Powertools.EventHandler.Tests", "tests\AWS.Lambda.Powertools.EventHandler.Tests\AWS.Lambda.Powertools.EventHandler.Tests.csproj", "{61374D8E-F77C-4A31-AE07-35DAF1847369}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AWS.Lambda.Powertools.EventHandler", "src\AWS.Lambda.Powertools.EventHandler\AWS.Lambda.Powertools.EventHandler.csproj", "{F4B8D5AF-D3CA-4910-A14D-E5BAEF0FD1DE}"
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EndProject
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Debug|Any CPU = Debug|Any CPU
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{F4B8D5AF-D3CA-4910-A14D-E5BAEF0FD1DE}.Debug|x64.Build.0 = Debug|Any CPU
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{F4B8D5AF-D3CA-4910-A14D-E5BAEF0FD1DE}.Debug|x86.ActiveCfg = Debug|Any CPU
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{F4B8D5AF-D3CA-4910-A14D-E5BAEF0FD1DE}.Debug|x86.Build.0 = Debug|Any CPU
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{F4B8D5AF-D3CA-4910-A14D-E5BAEF0FD1DE}.Release|Any CPU.ActiveCfg = Release|Any CPU
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EndGlobalSection
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GlobalSection(NestedProjects) = preSolution
@@ -611,5 +639,7 @@ Global
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{61374D8E-F77C-4A31-AE07-35DAF1847369} = {1CFF5568-8486-475F-81F6-06105C437528}
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{F4B8D5AF-D3CA-4910-A14D-E5BAEF0FD1DE} = {73C9B1E5-3893-47E8-B373-17E5F5D7E6F5}
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EndGlobalSection
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‎libraries/src/AWS.Lambda.Powertools.EventHandler/AWS.Lambda.Powertools.EventHandler.csproj

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<!--suppress MsbuildTargetFrameworkTagInspection -->
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<PackageId>AWS.Lambda.Powertools.EventHandler</PackageId>
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<Description>Powertools for AWS Lambda (.NET) - Event Handler package.</Description>
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<AssemblyName>AWS.Lambda.Powertools.EventHandler</AssemblyName>
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<RootNamespace>AWS.Lambda.Powertools.EventHandler</RootNamespace>
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<TargetFrameworks>net8.0</TargetFrameworks>
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<TargetMultiFramework>false</TargetMultiFramework>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Amazon.Lambda.Core" />
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</ItemGroup>
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</Project>

‎libraries/src/AWS.Lambda.Powertools.EventHandler/AppSyncEvents/AppSyncCognitoIdentity.cs

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namespace AWS.Lambda.Powertools.EventHandler.AppSyncEvents;
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/// <summary>
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/// Represents Amazon Cognito User Pools authorization identity for AppSync
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/// </summary>
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public class AppSyncCognitoIdentity
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{
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/// <summary>
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/// The source IP address of the caller received by AWS AppSync
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/// </summary>
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public List<string>? SourceIp { get; set; }
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/// <summary>
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/// The username of the authenticated user
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/// </summary>
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public string? Username { get; set; }
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/// <summary>
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/// The UUID of the authenticated user
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/// </summary>
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public string? Sub { get; set; }
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/// <summary>
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/// The claims that the user has
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/// </summary>
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public Dictionary<string, object>? Claims { get; set; }
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/// <summary>
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/// The default authorization strategy for this caller (ALLOW or DENY)
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/// </summary>
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public string? DefaultAuthStrategy { get; set; }
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/// <summary>
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/// List of OIDC groups
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/// </summary>
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public List<string>? Groups { get; set; }
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/// <summary>
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/// The token issuer
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/// </summary>
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public string? Issuer { get; set; }
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}

‎libraries/src/AWS.Lambda.Powertools.EventHandler/AppSyncEvents/AppSyncEvent.cs

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using System.Text.Json.Serialization;
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namespace AWS.Lambda.Powertools.EventHandler.AppSyncEvents;
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/// <summary>
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/// Represents an event from AWS AppSync.
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/// </summary>
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public class AppSyncEvent
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{
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/// <summary>
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/// Payload data when operation succeeds
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/// </summary>
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[JsonPropertyName("payload")]
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public Dictionary<string, object>? Payload { get; set; }
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/// <summary>
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/// Error message when operation fails
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/// </summary>
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[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
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[JsonPropertyName("error")]
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public string? Error { get; set; }
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/// <summary>
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/// Unique identifier for the event
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/// This Id is provided by AppSync and needs to be preserved.
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/// </summary>
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[JsonPropertyName("id")]
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public string? Id { get; set; }
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}

‎libraries/src/AWS.Lambda.Powertools.EventHandler/AppSyncEvents/AppSyncEventsOperation.cs

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using System.Text.Json.Serialization;
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namespace AWS.Lambda.Powertools.EventHandler.AppSyncEvents;
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/// <summary>
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/// Represents the operation type for AppSync events.
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/// </summary>
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[JsonConverter(typeof(JsonStringEnumConverter))]
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public enum AppSyncEventsOperation
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{
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/// <summary>
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/// Represents a subscription operation.
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/// </summary>
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Subscribe,
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/// <summary>
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/// Represents a publish operation.
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/// </summary>
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Publish
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}

‎libraries/src/AWS.Lambda.Powertools.EventHandler/AppSyncEvents/AppSyncEventsRequest.cs

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using System.Text.Json.Serialization;
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namespace AWS.Lambda.Powertools.EventHandler.AppSyncEvents;
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/// <summary>
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/// Represents the event payload received from AWS AppSync.
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/// </summary>
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public class AppSyncEventsRequest
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{
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/// <summary>
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/// An object that contains information about the caller.
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/// Returns null for API_KEY authorization.
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/// Returns AppSyncIamIdentity for AWS_IAM authorization.
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/// Returns AppSyncCognitoIdentity for AMAZON_COGNITO_USER_POOLS authorization.
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/// For AWS_LAMBDA authorization, returns the object returned by your Lambda authorizer function.
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/// </summary>
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/// <remarks>
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/// The Identity object type depends on the authorization mode:
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/// - For API_KEY: null
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/// - For AWS_IAM: <see cref="AppSyncIamIdentity"/>
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/// - For AMAZON_COGNITO_USER_POOLS: <see cref="AppSyncCognitoIdentity"/>
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/// - For AWS_LAMBDA: <see cref="AppSyncLambdaIdentity"/>
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/// - For OPENID_CONNECT: <see cref="AppSyncOidcIdentity"/>
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/// </remarks>
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public object? Identity { get; set; }
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/// <summary>
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/// Gets or sets information about the data source that originated the event.
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/// </summary>
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[JsonPropertyName("source")]
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public object? Source { get; set; }
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/// <summary>
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/// Gets or sets information about the HTTP request that triggered the event.
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/// </summary>
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[JsonPropertyName("request")]
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public RequestContext? Request { get; set; }
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/// <summary>
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/// Gets or sets information about the previous state of the data before the operation was executed.
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/// </summary>
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[JsonPropertyName("prev")]
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public object? Prev { get; set; }
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/// <summary>
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/// Gets or sets information about the GraphQL operation being executed.
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/// </summary>
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[JsonPropertyName("info")]
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public Information? Info { get; set; }
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/// <summary>
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/// Gets or sets additional information that can be passed between Lambda functions during an AppSync pipeline.
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/// </summary>
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[JsonPropertyName("stash")]
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public Dictionary<string, object>? Stash { get; set; }
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/// <summary>
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/// The error message when the operation fails.
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/// </summary>
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[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
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[JsonPropertyName("error")]
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public string? Error { get; set; }
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/// <summary>
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/// The list of error message when the operation fails.
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/// </summary>
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public object[]? OutErrors { get; set; }
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/// <summary>
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/// The list of events sent.
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/// </summary>
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[JsonPropertyName("events")]
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public AppSyncEvent[]? Events { get; set; }
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}

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