Emil Lerch
e91e958e2b
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359 lines
7.2 KiB
Markdown
359 lines
7.2 KiB
Markdown
AWS SDK for Zig
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===============
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[](https://git.lerch.org/lobo/aws-sdk-for-zig/actions?workflow=build.yaml&state=closed)
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**NOTE: THIS SDK IS ONLY CURRENTLY USABLE FOR A SMALL SUBSET OF AWS SERVICES
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WITHOUT A PROXY. SEE LIMITATIONS SECTION BELOW**
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Current executable size for the demo is 980k after compiling with -Doptimize=ReleaseSmall
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in x86_linux, and will vary based on services used. Tested targets:
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* x86_64-linux
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* riscv64-linux
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* aarch64-linux
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* x86_64-windows
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* arm-linux
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* aarch64-macos
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* x86_64-macos
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Tested targets are built, but not continuously tested, by CI.
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Building
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--------
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`zig build` should work. It will build the code generation project, fetch model
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files from upstream AWS Go SDK v2, run the code generation, then build the main
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project with the generated code. Testing can be done with `zig test`.
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Using
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-----
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This is designed for use with the Zig 0.11 package manager, and exposes a module
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called "aws". Set up `build.zig.zon` and add the dependency/module to your project
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as normal and the package manager should do its thing. A full example can be found
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in [/example](example/README.md).
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Configuring the module and/or Running the demo
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----------------------------------------------
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This library mimics the aws c libraries for it's work, so it operates like most
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other 'AWS things'. [/src/main.zig](src/main.zig) gives you a handful of examples
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for working with services. For local testing or alternative endpoints, there's
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no real standard, so there is code to look for `AWS_ENDPOINT_URL` environment
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variable that will supersede all other configuration.
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Other branches
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--------------
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The default branch is fully functional but requires TLS 1.3. Until AWS Services
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support TLS 1.3 at the end of 2023, the [0.9.0 branch](https://git.lerch.org/lobo/aws-sdk-for-zig/src/branch/0.9.0)
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may be of use. More details below in limitations. This branch overall is
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superior, as is the 0.11 compiler, but if you need a service that doesn't support
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TLS 1.3 and you need it right away, feel free to use that branch. Note I do not
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intend to update code in the 0.9.0 branch, but will accept PRs.
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An [old branch based on aws-crt](https://github.com/elerch/aws-sdk-for-zig/tree/aws-crt) exists
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for posterity, and supports x86_64 linux. The old branch is deprecated, so if
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there are issues you see that work correctly in the aws-crt branch, please
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file an issue. I can't think of a reason to use this branch any more. I do not
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intend to entertain PRs on this branch, but reach out if you think it is important.
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Limitations
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-----------
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The zig 0.11 HTTP client supports TLS 1.3 only. This, IMHO, is a reasonable
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restriction given its introduction 5 years ago, but is inflicting some short
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term pain on this project as AWS has not yet fully implemented the protocol. AWS has
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committed to [TLS 1.3 support across all services by the end of 2023](https://aws.amazon.com/blogs/security/faster-aws-cloud-connections-with-tls-1-3/), but many (most) services as of August 28th have not yet
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been upgraded. Proxy support has been added, so to get to the services that
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do not yet support TLS 1.3, you can use something like [mitmproxy](https://mitmproxy.org/)
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to proxy those requests. Of course, this is not a good production solution...
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WebIdentityToken is not yet implemented.
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TODO List:
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* Json parsing is based on a fork of the 0.9.0 (maybe earlier?) json parser.
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This needs a re-visit. Note also that a json.zig file is embedded/copied
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from the codegen project, so that also needs a second look.
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* Take a look to see about compilation speed. With codegen caching this is
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reasonable, but still takes longer than needed.
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* Upgrade the model files. This is a simple tasks, but I'd like the first
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item on this list to be completed first.
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* Implement sigv4a signing
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* Implement jitter/exponential backoff
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* Implement timeouts and other TODO's in the code
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* Add option to cache signature keys
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Compiler wishlist/watchlist:
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* [comptime allocations](https://github.com/ziglang/zig/issues/1291) so we can read files, etc (or is there another way)
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Services with TLS 1.3 Support (115 services)
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--------------------------------------------
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```
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acm
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amplify
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apigateway
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apigateway
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appconfig
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application-autoscaling
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applicationinsights
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apprunner
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appstream2
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appsync
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athena
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backup
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batch
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cloud9
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clouddirectory
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cloudformation
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cloudhsmv2
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cloudsearch
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cloudtrail
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events
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codeartifact
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codebuild
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codedeploy
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codeguru-profiler
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codepipeline
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codestar-connections
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comprehend
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comprehendmedical
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compute-optimizer
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dms
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databrew
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dataexchange
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datasync
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devicefarm
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directconnect
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ds
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ec2-instance-connect
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api.ecr
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api.ecr-public
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ecs
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elasticfilesystem
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es
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elastictranscoder
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elasticmapreduce
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events
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finspace
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finspace-api
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fms
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frauddetector
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fsx
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gamelift
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glacier
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globalaccelerator
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glue
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healthlake
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honeycode
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identitystore
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inspector
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iot
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iotanalytics
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iotevents
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data.iotevents
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api.iotwireless
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ivs
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kafka
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kendra
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kinesisanalytics
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kms
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lakeformation
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license-manager
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lookoutvision
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metering.marketplace
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mediaconnect
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medialive
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mediapackage-vod
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mediastore
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mgh
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network-firewall
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networkmanager
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opsworks-cm
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personalize
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pinpoint
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email
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sms-voice.pinpoint
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polly
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qldb
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session.qldb
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quicksight
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rds-data
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redshift-data
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rekognition
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tagging
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route53resolver
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s3-outposts
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api.sagemaker
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edge.sagemaker
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secretsmanager
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servicecatalog
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servicediscovery
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servicequotas
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email
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states
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snowball
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ssm-contacts
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swf
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textract
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transcribe
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transfer
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translate
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waf-regional
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workdocs
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workmail
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workmailmessageflow
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workspaces
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xray
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```
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Services without TLS 1.3 support (140 services)
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-----------------------------------------------
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```
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access-analyzer
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acm-pca
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amplifybackend
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execute-api
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appflow
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app-integrations
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application-cost-profiler
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discovery
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appmesh
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auditmanager
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autoscaling
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autoscaling-plans
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budgets
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chime
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cloudfront
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cloudsearchdomain
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monitoring
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logs
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codecommit
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codeguru-reviewer
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codestar
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codestar-notifications
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cognito-identity
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cognito-idp
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cognito-sync
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config
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connect
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contact-lens
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participant.connect
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ce
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profile
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datapipeline
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dax
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api.detective
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devops-guru
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dlm
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dynamodb
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streams.dynamodb
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ebs
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ec2
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eks
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elasticache
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elasticbeanstalk
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api.elastic-inference
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elasticloadbalancing
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emr-containers
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firehose
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fis
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forecast
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forecastquery
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greengrass
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groundstation
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guardduty
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health
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iam
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imagebuilder
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devices.iot1click
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projects.iot1click
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data.iot
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api.iotdeviceadvisor
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api.fleethub.iot
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data.jobs.iot
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api.tunneling.iot
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iotsitewise
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iotthingsgraph
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kinesis
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kinesisvideo
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lambda
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models.lex
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models-v2-lex
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runtime.lex
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runtime-v2-lex
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lightsail
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geo
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lookoutequipment
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lookoutmetrics
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machinelearning
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macie
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macie2
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managedblockchain
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catalog.marketplace
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marketplacecommerceanalytics
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entitlement.marketplace
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mediaconvert
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mediapackage
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data.mediastore
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api.mediatailor
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PlaybackEndpointPrefix
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mgn
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migrationhub-config
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mobile
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mq
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mturk-requester
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airflow
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rds
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nimble
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opsworks
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organizations
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outposts
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personalize-events
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personalize-runtime
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pi
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api.pricing
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ram
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rds
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redshift
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resource-groups
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robomaker
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route53
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route53domains
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s3
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s3-control
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a2i-runtime.sagemaker
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featurestore-runtime.sagemaker
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runtime.sagemaker
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savingsplans
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schemas
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securityhub
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serverlessrepo
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servicecatalog-appregistry
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shield
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signer
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sms
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sns
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sqs
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ssm
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ssm-incidents
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portal.sso
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sso
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oidc
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storagegateway
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sts
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support
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synthetics
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query.timestream
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ingest.timestream
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waf
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wafv2
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wellarchitected
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worklink
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```
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