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clean up README - we are in pretty good shape for usage
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Emil Lerch 2021-09-06 15:57:46 -07:00
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@ -2,10 +2,12 @@
[![Build Status](https://drone.lerch.org/api/badges/lobo/aws-sdk-for-zig/status.svg)](https://drone.lerch.org/lobo/aws-sdk-for-zig)
Ok, so it's not actually an SDK (yet). Right now the SDK should support
any "query-based" operation and probably EC2, though this isn't tested yet.
Total service count should be around 18 services supported. If you use an
unsupported service, you'll get a compile error.
This SDK currently supports all AWS services except EC2 and S3. These two
services only support XML, and zig 0.8.0 and master both trigger compile
errors while incorporating the XML parser. S3 also requires some plumbing
tweaks in the signature calculation, which is planned for a zig version
(probably self-hosted 0.9.0) that no longer has an error triggered. Examples
of usage are in src/main.zig.
This is my first serious zig effort, so please issue a PR if the code isn't
"ziggy" or if there's a better way.
@ -23,10 +25,9 @@ I am assuming here that if you're playing with zig, you pretty much know
what you're doing, so I will stay brief.
First, the dependencies are required. Use the Dockerfile to build these.
a `docker build` will do, but be prepared for it to run a while. Openssl in
particular will take a while, but without any particular knowledge
I'm also hoping/expecting AWS to factor out that library sometime in
the future.
a `docker build` will do, but be prepared for it to run a while. The
Dockerfile has been tested on x86_64 linux, but I do hope to get arm64
supported as well.
Once that's done, you'll have an alpine image with all dependencies ready
to go and zig master installed. There are some build-related things still
@ -35,16 +36,15 @@ a standard release.
* `zig build` should work. It will build the code generation project, run
the code generation, then build the main project with the generated code.
* Install make and use the included Makefile. Going this path should be fine
with zig 0.8.0 release, but code generation has not been added to the
Makefile yet (ever?), so you'll be on your own for that.
There is also a Makefile included, but this hasn't been used in a while
and I'm not sure that works at the moment.
## Running
This library uses the aws c libraries for it's work, so it operates like most
other 'AWS things'. Note that I tested by setting the appropriate environment
variables, so config files haven't gotten a run through.
main.zig gives you a program to call sts GetCallerIdentity.
main.zig gives you a handful of examples for working with services.
For local testing or alternative endpoints, there's no real standard, so
there is code to look for `AWS_ENDPOINT_URL` environment variable that will
supercede all other configuration.
@ -90,29 +90,22 @@ Dockerfile in this repo will manage this
TODO List:
* Implement jitter/exponential backoff. This appears to be configuration of `aws_c_io` and should therefore be trivial
* Implement jitter/exponential backoff. This appears to be configuration of
`aws_c_io` and should therefore be trivial
* Implement timeouts and other TODO's in the code
* Implement error handling for 4xx, 5xx and other unexpected return values
* ✓ Implement generic response body -> Response type handling (right now, this is hard-coded)
* ✓ Implement codegen for services with xml structures (using Smithy models)
* ✓ Implement codegen for others (using Smithy models)
* Switch to aws-c-cal upstream once [PR for full static musl build support is merged](https://github.com/awslabs/aws-c-cal/pull/89) (see Dockerfile)
* Switch to aws-c-cal upstream once [PR for full static musl build support is merged](https://github.com/awslabs/aws-c-cal/pull/89)
(see Dockerfile)
* Move to compiler on tagged release (hopefully 0.8.1)
(new 2021-05-29. I will proceed in this order unless I get other requests)
* ✓ Implement [AWS query protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-query-protocol.html). This is the protocol in use by sts.getcalleridentity. Total service count 18
* ✓ Implement [AWS Json 1.0 protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-json-1_0-protocol.html). Includes dynamodb. Total service count 18
* ✓ Implement [AWS Json 1.1 protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-json-1_1-protocol.html). Includes ecs. Total service count 105
* Implement [AWS Rest Json 1 protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-restjson1-protocol.html). Includes lambda. Total service count 127
* Implement [AWS restXml protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-restxml-protocol.html). Includes S3. Total service count 4. This may be blocked due to the same issue as EC2.
* Implement [AWS EC2 query protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-ec2-query-protocol.html). Includes EC2. Total service count 1. This is currently blocked, probably on self-hosted compiler coming in zig 0.9.0 (January 2022) due to compiler bug discovered. More details and llvm ir log can be found in the [XML branch](https://git.lerch.org/lobo/aws-sdk-for-zig/src/branch/xml).
* Implement [AWS restXml protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-restxml-protocol.html).
Includes S3. Total service count 4. This may be blocked due to the same issue as EC2.
* Implement [AWS EC2 query protocol](https://awslabs.github.io/smithy/1.0/spec/aws/aws-ec2-query-protocol.html).
Includes EC2. Total service count 1. This is currently blocked, probably on
self-hosted compiler coming in zig 0.9.0 (January 2022) due to compiler bug
discovered. More details and llvm ir log can be found in the
[XML branch](https://git.lerch.org/lobo/aws-sdk-for-zig/src/branch/xml).
Compiler wishlist/watchlist:
* ~~[Allow declarations for comptime type generation](https://github.com/ziglang/zig/issues/6709)~~
This is no longer as important. The primary issue was in the return value, but
due to the way AWS responses are provided, we are able to statically declare a
type and thus allow our types to be generated.
* [Merge PR to allow stripping -static](https://github.com/ziglang/zig/pull/8248)
* [comptime allocations](https://github.com/ziglang/zig/issues/1291) so we can read files, etc (or is there another way)