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Merge pull request #653 from hjgraca/aot(idempotency|jmespath)-aot-support
chore: AOT support for Idempotency
2 parents f4f00e6 + af59143 commit fb7e6c3

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‎docs/utilities/idempotency.md

+67
Original file line numberDiff line numberDiff line change
@@ -14,6 +14,7 @@ The idempotency utility provides a simple solution to convert your Lambda functi
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* Select a subset of the event as the idempotency key using [JMESPath](https://jmespath.org/) expressions
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* Set a time window in which records with the same payload should be considered duplicates
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* Expires in-progress executions if the Lambda function times out halfway through
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* Ahead-of-Time compilation to native code support [AOT](https://docs.aws.amazon.com/lambda/latest/dg/dotnet-native-aot.html) from version 1.3.0
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## Terminology
1920

@@ -821,10 +822,76 @@ Data would then be stored in DynamoDB like this:
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| idempotency#MyLambdaFunction | 2b2cdb5f86361e97b4383087c1ffdf27 | 1636549571 | COMPLETED | {"id": 527212, "message": "success"} |
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| idempotency#MyLambdaFunction | f091d2527ad1c78f05d54cc3f363be80 | 1636549585 | IN_PROGRESS | |
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## AOT Support
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Native AOT trims your application code as part of the compilation to ensure that the binary is as small as possible. .NET 8 for Lambda provides improved trimming support compared to previous versions of .NET.
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### WithJsonSerializationContext()
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To use Idempotency utility with AOT support you first need to add `WithJsonSerializationContext()` to your `Idempotency` configuration.
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This ensures that when serializing your payload, the utility uses the correct serialization context.
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In the example below, we use the default `LambdaFunctionJsonSerializerContext`:
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```csharp
839+
Idempotency.Configure(builder =>
840+
builder.WithJsonSerializationContext(LambdaFunctionJsonSerializerContext.Default)));
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842+
```
843+
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Full example:
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```csharp hl_lines="8"
847+
public static class Function
848+
{
849+
private static async Task Main()
850+
{
851+
var tableName = Environment.GetEnvironmentVariable("IDEMPOTENCY_TABLE_NAME");
852+
Idempotency.Configure(builder =>
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builder
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.WithJsonSerializationContext(LambdaFunctionJsonSerializerContext.Default)
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.WithOptions(optionsBuilder => optionsBuilder
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.WithExpiration(TimeSpan.FromHours(1)))
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.UseDynamoDb(storeBuilder => storeBuilder
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.WithTableName(tableName)
859+
));
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Func<APIGatewayProxyRequest, ILambdaContext, APIGatewayProxyResponse> handler = FunctionHandler;
862+
await LambdaBootstrapBuilder.Create(handler,
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new SourceGeneratorLambdaJsonSerializer<LambdaFunctionJsonSerializerContext>())
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.Build()
865+
.RunAsync();
866+
}
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868+
[Idempotent]
869+
public static APIGatewayProxyResponse FunctionHandler(APIGatewayProxyRequest apigwProxyEvent,
870+
ILambdaContext context)
871+
{
872+
return new APIGatewayProxyResponse
873+
{
874+
Body = JsonSerializer.Serialize(response, typeof(Response), LambdaFunctionJsonSerializerContext.Default),
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StatusCode = 200,
876+
Headers = new Dictionary<string, string> { { "Content-Type", "application/json" } }
877+
};
878+
}
879+
}
880+
881+
[JsonSerializable(typeof(APIGatewayProxyRequest))]
882+
[JsonSerializable(typeof(APIGatewayProxyResponse))]
883+
[JsonSerializable(typeof(Response))]
884+
public partial class LambdaFunctionJsonSerializerContext : JsonSerializerContext
885+
{
886+
}
887+
```
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## Testing your code
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The idempotency utility provides several routes to test your code.
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You can check our Integration tests which use [TestContainers](https://testcontainers.com/modules/dynamodb/){:target="_blank"} with a local DynamoDB instance to test the idempotency utility. Or our end-to-end tests which use the AWS SDK to interact with a real DynamoDB table.
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### Disabling the idempotency utility
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When testing your code, you may wish to disable the idempotency logic altogether and focus on testing your business logic. To do this, you can set the environment variable `POWERTOOLS_IDEMPOTENCY_DISABLED` to true.
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‎libraries/AWS.Lambda.Powertools.sln

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Original file line numberDiff line numberDiff line change
@@ -91,7 +91,11 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Function", "tests\e2e\funct
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Function.Tests", "tests\e2e\functions\idempotency\Function\test\Function.Tests\Function.Tests.csproj", "{FBCE2C8A-2F64-4B62-8CF1-D4A14C19A5CC}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AOT-Function", "tests\e2e\functions\idempotency\AOT-Function\src\AOT-Function\AOT-Function.csproj", "{56DFC68A-3994-43CD-A17C-323495F1709C}"
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AOT-FunctionPayloadSubsetTest", "tests\e2e\functions\idempotency\AOT-Function\src\AOT-FunctionPayloadSubsetTest\AOT-FunctionPayloadSubsetTest.csproj", "{ACA789EA-BD38-490B-A7F8-6A3A86985025}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AOT-FunctionHandlerTest", "tests\e2e\functions\idempotency\AOT-Function\src\AOT-FunctionHandlerTest\AOT-FunctionHandlerTest.csproj", "{E71C48D2-AD56-4177-BBD7-6BB859A40C92}"
97+
EndProject
98+
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AOT-FunctionMethodAttributeTest", "tests\e2e\functions\idempotency\AOT-Function\src\AOT-FunctionMethodAttributeTest\AOT-FunctionMethodAttributeTest.csproj", "{CC8CFF43-DC72-464C-A42D-55E023DE8500}"
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EndProject
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Global
97101
GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -478,18 +482,42 @@ Global
478482
{FBCE2C8A-2F64-4B62-8CF1-D4A14C19A5CC}.Release|x64.Build.0 = Release|Any CPU
479483
{FBCE2C8A-2F64-4B62-8CF1-D4A14C19A5CC}.Release|x86.ActiveCfg = Release|Any CPU
480484
{FBCE2C8A-2F64-4B62-8CF1-D4A14C19A5CC}.Release|x86.Build.0 = Release|Any CPU
481-
{56DFC68A-3994-43CD-A17C-323495F1709C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
482-
{56DFC68A-3994-43CD-A17C-323495F1709C}.Debug|Any CPU.Build.0 = Debug|Any CPU
483-
{56DFC68A-3994-43CD-A17C-323495F1709C}.Debug|x64.ActiveCfg = Debug|Any CPU
484-
{56DFC68A-3994-43CD-A17C-323495F1709C}.Debug|x64.Build.0 = Debug|Any CPU
485-
{56DFC68A-3994-43CD-A17C-323495F1709C}.Debug|x86.ActiveCfg = Debug|Any CPU
486-
{56DFC68A-3994-43CD-A17C-323495F1709C}.Debug|x86.Build.0 = Debug|Any CPU
487-
{56DFC68A-3994-43CD-A17C-323495F1709C}.Release|Any CPU.ActiveCfg = Release|Any CPU
488-
{56DFC68A-3994-43CD-A17C-323495F1709C}.Release|Any CPU.Build.0 = Release|Any CPU
489-
{56DFC68A-3994-43CD-A17C-323495F1709C}.Release|x64.ActiveCfg = Release|Any CPU
490-
{56DFC68A-3994-43CD-A17C-323495F1709C}.Release|x64.Build.0 = Release|Any CPU
491-
{56DFC68A-3994-43CD-A17C-323495F1709C}.Release|x86.ActiveCfg = Release|Any CPU
492-
{56DFC68A-3994-43CD-A17C-323495F1709C}.Release|x86.Build.0 = Release|Any CPU
485+
{ACA789EA-BD38-490B-A7F8-6A3A86985025}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
486+
{ACA789EA-BD38-490B-A7F8-6A3A86985025}.Debug|Any CPU.Build.0 = Debug|Any CPU
487+
{ACA789EA-BD38-490B-A7F8-6A3A86985025}.Debug|x64.ActiveCfg = Debug|Any CPU
488+
{ACA789EA-BD38-490B-A7F8-6A3A86985025}.Debug|x64.Build.0 = Debug|Any CPU
489+
{ACA789EA-BD38-490B-A7F8-6A3A86985025}.Debug|x86.ActiveCfg = Debug|Any CPU
490+
{ACA789EA-BD38-490B-A7F8-6A3A86985025}.Debug|x86.Build.0 = Debug|Any CPU
491+
{ACA789EA-BD38-490B-A7F8-6A3A86985025}.Release|Any CPU.ActiveCfg = Release|Any CPU
492+
{ACA789EA-BD38-490B-A7F8-6A3A86985025}.Release|Any CPU.Build.0 = Release|Any CPU
493+
{ACA789EA-BD38-490B-A7F8-6A3A86985025}.Release|x64.ActiveCfg = Release|Any CPU
494+
{ACA789EA-BD38-490B-A7F8-6A3A86985025}.Release|x64.Build.0 = Release|Any CPU
495+
{ACA789EA-BD38-490B-A7F8-6A3A86985025}.Release|x86.ActiveCfg = Release|Any CPU
496+
{ACA789EA-BD38-490B-A7F8-6A3A86985025}.Release|x86.Build.0 = Release|Any CPU
497+
{E71C48D2-AD56-4177-BBD7-6BB859A40C92}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
498+
{E71C48D2-AD56-4177-BBD7-6BB859A40C92}.Debug|Any CPU.Build.0 = Debug|Any CPU
499+
{E71C48D2-AD56-4177-BBD7-6BB859A40C92}.Debug|x64.ActiveCfg = Debug|Any CPU
500+
{E71C48D2-AD56-4177-BBD7-6BB859A40C92}.Debug|x64.Build.0 = Debug|Any CPU
501+
{E71C48D2-AD56-4177-BBD7-6BB859A40C92}.Debug|x86.ActiveCfg = Debug|Any CPU
502+
{E71C48D2-AD56-4177-BBD7-6BB859A40C92}.Debug|x86.Build.0 = Debug|Any CPU
503+
{E71C48D2-AD56-4177-BBD7-6BB859A40C92}.Release|Any CPU.ActiveCfg = Release|Any CPU
504+
{E71C48D2-AD56-4177-BBD7-6BB859A40C92}.Release|Any CPU.Build.0 = Release|Any CPU
505+
{E71C48D2-AD56-4177-BBD7-6BB859A40C92}.Release|x64.ActiveCfg = Release|Any CPU
506+
{E71C48D2-AD56-4177-BBD7-6BB859A40C92}.Release|x64.Build.0 = Release|Any CPU
507+
{E71C48D2-AD56-4177-BBD7-6BB859A40C92}.Release|x86.ActiveCfg = Release|Any CPU
508+
{E71C48D2-AD56-4177-BBD7-6BB859A40C92}.Release|x86.Build.0 = Release|Any CPU
509+
{CC8CFF43-DC72-464C-A42D-55E023DE8500}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
510+
{CC8CFF43-DC72-464C-A42D-55E023DE8500}.Debug|Any CPU.Build.0 = Debug|Any CPU
511+
{CC8CFF43-DC72-464C-A42D-55E023DE8500}.Debug|x64.ActiveCfg = Debug|Any CPU
512+
{CC8CFF43-DC72-464C-A42D-55E023DE8500}.Debug|x64.Build.0 = Debug|Any CPU
513+
{CC8CFF43-DC72-464C-A42D-55E023DE8500}.Debug|x86.ActiveCfg = Debug|Any CPU
514+
{CC8CFF43-DC72-464C-A42D-55E023DE8500}.Debug|x86.Build.0 = Debug|Any CPU
515+
{CC8CFF43-DC72-464C-A42D-55E023DE8500}.Release|Any CPU.ActiveCfg = Release|Any CPU
516+
{CC8CFF43-DC72-464C-A42D-55E023DE8500}.Release|Any CPU.Build.0 = Release|Any CPU
517+
{CC8CFF43-DC72-464C-A42D-55E023DE8500}.Release|x64.ActiveCfg = Release|Any CPU
518+
{CC8CFF43-DC72-464C-A42D-55E023DE8500}.Release|x64.Build.0 = Release|Any CPU
519+
{CC8CFF43-DC72-464C-A42D-55E023DE8500}.Release|x86.ActiveCfg = Release|Any CPU
520+
{CC8CFF43-DC72-464C-A42D-55E023DE8500}.Release|x86.Build.0 = Release|Any CPU
493521
EndGlobalSection
494522

495523
GlobalSection(NestedProjects) = preSolution
@@ -532,6 +560,8 @@ Global
532560
{FB2C7DA3-6FCE-429D-86F9-5775D0231EC6} = {CDAE55EB-9438-4F54-B7ED-931D64324D5F}
533561
{9AF99F6D-E8E7-443F-A965-D55B8E388836} = {FB2C7DA3-6FCE-429D-86F9-5775D0231EC6}
534562
{FBCE2C8A-2F64-4B62-8CF1-D4A14C19A5CC} = {FB2C7DA3-6FCE-429D-86F9-5775D0231EC6}
535-
{56DFC68A-3994-43CD-A17C-323495F1709C} = {FB2C7DA3-6FCE-429D-86F9-5775D0231EC6}
563+
{ACA789EA-BD38-490B-A7F8-6A3A86985025} = {FB2C7DA3-6FCE-429D-86F9-5775D0231EC6}
564+
{E71C48D2-AD56-4177-BBD7-6BB859A40C92} = {FB2C7DA3-6FCE-429D-86F9-5775D0231EC6}
565+
{CC8CFF43-DC72-464C-A42D-55E023DE8500} = {FB2C7DA3-6FCE-429D-86F9-5775D0231EC6}
536566
EndGlobalSection
537567
EndGlobal

‎libraries/src/AWS.Lambda.Powertools.Idempotency/Idempotency.cs

+22-6
Original file line numberDiff line numberDiff line change
@@ -1,21 +1,23 @@
11
/*
22
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
3-
*
3+
*
44
* Licensed under the Apache License, Version 2.0 (the "License").
55
* You may not use this file except in compliance with the License.
66
* A copy of the License is located at
7-
*
7+
*
88
* http://aws.amazon.com/apache2.0
9-
*
9+
*
1010
* or in the "license" file accompanying this file. This file is distributed
1111
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
1212
* express or implied. See the License for the specific language governing
1313
* permissions and limitations under the License.
1414
*/
1515

1616
using System;
17+
using System.Text.Json.Serialization;
1718
using Amazon.Lambda.Core;
1819
using AWS.Lambda.Powertools.Common;
20+
using AWS.Lambda.Powertools.Idempotency.Internal.Serializers;
1921
using AWS.Lambda.Powertools.Idempotency.Persistence;
2022

2123
namespace AWS.Lambda.Powertools.Idempotency;
@@ -27,7 +29,7 @@ namespace AWS.Lambda.Powertools.Idempotency;
2729
/// Use it before the function handler get called.
2830
/// Example: Idempotency.Configure(builder => builder.WithPersistenceStore(...));
2931
/// </summary>
30-
public sealed class Idempotency
32+
public sealed class Idempotency
3133
{
3234
/// <summary>
3335
/// The general configurations for the idempotency
@@ -47,6 +49,7 @@ internal Idempotency(IPowertoolsConfigurations powertoolsConfigurations)
4749
{
4850
powertoolsConfigurations.SetExecutionEnvironment(this);
4951
}
52+
5053
/// <summary>
5154
/// Set Idempotency options
5255
/// </summary>
@@ -68,7 +71,7 @@ private void SetPersistenceStore(BasePersistenceStore persistenceStore)
6871
/// <summary>
6972
/// Holds the idempotency Instance:
7073
/// </summary>
71-
public static Idempotency Instance { get; } = new(PowertoolsConfigurations.Instance);
74+
internal static Idempotency Instance { get; } = new(PowertoolsConfigurations.Instance);
7275

7376
/// <summary>
7477
/// Use this method to configure persistence layer (mandatory) and idempotency options (optional)
@@ -90,7 +93,7 @@ public static void Configure(Action<IdempotencyBuilder> configurationAction)
9093
/// Holds ILambdaContext
9194
/// </summary>
9295
public ILambdaContext LambdaContext { get; private set; }
93-
96+
9497
/// <summary>
9598
/// Can be used in a method which is not the handler to capture the Lambda context,
9699
/// to calculate the remaining time before the invocation times out.
@@ -177,5 +180,18 @@ public IdempotencyBuilder WithOptions(IdempotencyOptions options)
177180
Options = options;
178181
return this;
179182
}
183+
184+
#if NET8_0_OR_GREATER
185+
/// <summary>
186+
/// Set Customer JsonSerializerContext to append to IdempotencySerializationContext
187+
/// </summary>
188+
/// <param name="context"></param>
189+
/// <returns>IdempotencyBuilder</returns>
190+
public IdempotencyBuilder WithJsonSerializationContext(JsonSerializerContext context)
191+
{
192+
IdempotencySerializer.AddTypeInfoResolver(context);
193+
return this;
194+
}
195+
#endif
180196
}
181197
}

‎libraries/src/AWS.Lambda.Powertools.Idempotency/IdempotencyOptionsBuilder.cs

+13-1
Original file line numberDiff line numberDiff line change
@@ -11,26 +11,32 @@ public class IdempotencyOptionsBuilder
1111
/// Default maximum number of items in the local cache.
1212
/// </summary>
1313
private readonly int _localCacheMaxItems = 256;
14+
1415
/// <summary>
1516
/// Local cache enabled
1617
/// </summary>
1718
private bool _useLocalCache;
19+
1820
/// <summary>
1921
/// Default expiration in seconds.
2022
/// </summary>
2123
private long _expirationInSeconds = 60 * 60; // 1 hour
24+
2225
/// <summary>
2326
/// Event key JMESPath expression.
2427
/// </summary>
2528
private string _eventKeyJmesPath;
29+
2630
/// <summary>
2731
/// Payload validation JMESPath expression.
2832
/// </summary>
2933
private string _payloadValidationJmesPath;
34+
3035
/// <summary>
3136
/// Throw exception if no idempotency key is found.
3237
/// </summary>
3338
private bool _throwOnNoIdempotencyKey;
39+
3440
/// <summary>
3541
/// Default Hash function
3642
/// </summary>
@@ -107,7 +113,7 @@ public IdempotencyOptionsBuilder WithThrowOnNoIdempotencyKey(bool throwOnNoIdemp
107113
/// <returns>the instance of the builder (to chain operations)</returns>
108114
public IdempotencyOptionsBuilder WithExpiration(TimeSpan duration)
109115
{
110-
_expirationInSeconds = (long) duration.TotalSeconds;
116+
_expirationInSeconds = (long)duration.TotalSeconds;
111117
return this;
112118
}
113119

@@ -116,9 +122,15 @@ public IdempotencyOptionsBuilder WithExpiration(TimeSpan duration)
116122
/// </summary>
117123
/// <param name="hashFunction">Can be any algorithm supported by HashAlgorithm.Create</param>
118124
/// <returns>the instance of the builder (to chain operations)</returns>
125+
#if NET8_0_OR_GREATER
126+
[Obsolete("Idempotency uses MD5 and does not support other hash algorithms.")]
127+
#endif
119128
public IdempotencyOptionsBuilder WithHashFunction(string hashFunction)
120129
{
130+
#if NET6_0
131+
// for backward compability keep this code in .net 6
121132
_hashFunction = hashFunction;
133+
#endif
122134
return this;
123135
}
124136
}

‎libraries/src/AWS.Lambda.Powertools.Idempotency/IdempotentAttribute.cs

+3-2
Original file line numberDiff line numberDiff line change
@@ -23,6 +23,7 @@
2323
using AWS.Lambda.Powertools.Common;
2424
using AWS.Lambda.Powertools.Idempotency.Exceptions;
2525
using AWS.Lambda.Powertools.Idempotency.Internal;
26+
using AWS.Lambda.Powertools.Idempotency.Internal.Serializers;
2627

2728
namespace AWS.Lambda.Powertools.Idempotency;
2829

@@ -151,7 +152,7 @@ private static JsonDocument GetPayload<T>(AspectEventArgs eventArgs)
151152
// Use the first argument if IdempotentAttribute placed on handler or number of arguments is 1
152153
if (isPlacedOnRequestHandler || args.Count == 1)
153154
{
154-
payload = args is not null && args.Any() ? JsonDocument.Parse(JsonSerializer.Serialize(args[0])) : null;
155+
payload = args is not null && args.Any() ? JsonDocument.Parse(IdempotencySerializer.Serialize(args[0], typeof(object))) : null;
155156
}
156157
else
157158
{
@@ -160,7 +161,7 @@ private static JsonDocument GetPayload<T>(AspectEventArgs eventArgs)
160161
if (parameter != null)
161162
{
162163
// set payload to the value of the parameter
163-
payload = JsonDocument.Parse(JsonSerializer.Serialize(args[Array.IndexOf(eventArgsMethod.GetParameters(), parameter)]));
164+
payload = JsonDocument.Parse(IdempotencySerializer.Serialize(args[Array.IndexOf(eventArgsMethod.GetParameters(), parameter)], typeof(object)));
164165
}
165166
}
166167

‎libraries/src/AWS.Lambda.Powertools.Idempotency/Internal/IdempotencyAspectHandler.cs

+2-1
Original file line numberDiff line numberDiff line change
@@ -18,6 +18,7 @@
1818
using System.Threading.Tasks;
1919
using Amazon.Lambda.Core;
2020
using AWS.Lambda.Powertools.Idempotency.Exceptions;
21+
using AWS.Lambda.Powertools.Idempotency.Internal.Serializers;
2122
using AWS.Lambda.Powertools.Idempotency.Persistence;
2223

2324
namespace AWS.Lambda.Powertools.Idempotency.Internal;
@@ -184,7 +185,7 @@ private Task<T> HandleForStatus(DataRecord record)
184185
default:
185186
try
186187
{
187-
var result = JsonSerializer.Deserialize<T>(record.ResponseData!);
188+
var result = IdempotencySerializer.Deserialize<T>(record.ResponseData!);
188189
if (result is null)
189190
{
190191
throw new IdempotencyPersistenceLayerException("Unable to cast function response as " + typeof(T).Name);

‎libraries/src/AWS.Lambda.Powertools.Idempotency/Internal/Serializers/IdempotencySerializationContext.cs

+32
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,32 @@
1+
/*
2+
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
3+
*
4+
* Licensed under the Apache License, Version 2.0 (the "License").
5+
* You may not use this file except in compliance with the License.
6+
* A copy of the License is located at
7+
*
8+
* http://aws.amazon.com/apache2.0
9+
*
10+
* or in the "license" file accompanying this file. This file is distributed
11+
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
12+
* express or implied. See the License for the specific language governing
13+
* permissions and limitations under the License.
14+
*/
15+
16+
using System.Text.Json.Serialization;
17+
18+
namespace AWS.Lambda.Powertools.Idempotency.Internal.Serializers;
19+
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#if NET8_0_OR_GREATER
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/// <summary>
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/// The source generated JsonSerializerContext to be used to Serialize Idempotency types
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/// </summary>
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[JsonSerializable(typeof(string))]
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[JsonSerializable(typeof(object))]
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public partial class IdempotencySerializationContext : JsonSerializerContext
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{
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}
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#endif

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