aws-sdk-cpp | AWS SDK for C++ provides a modern C++ ( version C++ | AWS library

We previously built aws-sdk-cpp locally and designed a library around it. Now I'm upgrading to use Conan provided aws-sdk-cpp instead of a locally built one, but I'm getting errors from our library.

I call AWS functions such as the following,

AWS recently introduced S3 Object Lambda, however looking at the online documentation:

• Writing and debugging Lambda functions for S3 Object Lambda Access Points
• Introducing Amazon S3 Object Lambda – Use Your Code to Process Data as It Is Being Retrieved from S3
• How to use Amazon S3 Object Lambda to generate thumbnails

I can only find example for Java, Python and NodeJS.

Is there an example out there for c++ that I missed ? In particular I fail to understand what is the equivalent in c++ for getObjectContext (python/nodejs) / S3ObjectLambdaEvent (java) ? How should I retrieve outputRoute, outputToken, inputS3Url ? The integration test does not make it particularly clear either:

• https://github.com/aws/aws-sdk-cpp/blob/main/aws-cpp-sdk-s3-integration-tests/BucketAndObjectOperationTest.cpp#L580-L581

This is a follow up to:

• Building the AWS SDK from source on Amazon Linux 2

Based on the answer I tried again locally:

I am trying to follow up suggestion from aws-lamba-cpp to reduce complexity in building my application.

If you choose to build on the same Amazon Linux version used by lambda, you can avoid packaging the C runtime in your zip file.

After reading:

• Building the SDK from source on EC2

Here is what I tried:

I have an AWS Lambda and am creating a simple C++ application to call it.

Based on the AWS Docs, I went and installed the SDK here https://github.com/aws/aws-sdk-cpp but that seems to add nearly a full GB if I include the whole thing.

Is there something like boto3 for C++?

If not, what is the accepted best way of integrating Lambda calls into a small C++ application?

Asking so I can answer this myself, lost a day to it and want to save other folks the trouble.

Setup:

• Windows (seen on both Windows 10 and Server 2019)
• Visual Studio (seen on both Visual Studio 2017 and Visual Studio 2019)
• cmake 3.19.0-rc1 (latest download as of this post)
• Following instructions at https://docs.aws.amazon.com/sdk-for-cpp/v1/developer-guide/setup.html for Windows build-from-source of the AWS C++ SDK. Happens both for standard build from source and vcpkg alternative. Also happens if you try to go build the "3rd party dependencies" mentioned at https://github.com/aws/aws-sdk-cpp manually.

You try something like:

I have a problem with the AWS sdk on a Qt app.
I'm getting the STS tokens from Cognito after a click on a QML button.
The function is working perfectly fine and is printing me the token... as long as the debugger is attached [F5]. If I start the project without debugger (green arrow without bug on it) the returned object is empty.

Without the debugger attached I have the following in the aws logs that I don't have otherwise:

[INFO] 2020-09-18 12:33:02.569 CognitoCachingCredentialsProvider [140678610167936] A parent identity was from cognito which is different from the anonymous identity. Swapping that out now.
[INFO] 2020-09-18 12:33:02.569 CognitoCachingCredentialsProvider [140678610167936] Credentials will expire next at 0

Other logs around looks the same, I even have the STS token shown a couples of lines above this one on both cases:

[DEBUG] 2020-09-18 12:33:02.569 CURL [140678610167936] (DataIn) {"Credentials":{"AccessKeyId":"###","Expiration":1.600435982E9,"SecretKey":"###","SessionToken":"##########"},"IdentityId":""}

I have even edited the SDK and added the following logs which resulted in this (with the debugger attached the first line is also getting shown).

I'm trying to use the AWS C++ SDK to generate a signed URL for S3, however the Aws::S3::S3Client constructor seems very slow. In the following example:

I want to build static aws libs core, s3 and transfer for iOS which i downloaded from this link. I am using macOS High Sierra 10.13.6 and Xcode 10.0.

I am trying to run cmake on the source from the link with this command: