Amazon Web Services SDK bindings to Amazon ElastiCache
Published: 23 Mar 2021
ocaml-aws is an Amazon Web Services SDK for OCaml. Its source distribution includes a core runtime API and a code generation tool that generates individual libraries from botocore service descriptions.
You can install the core library and its dependencies by pinning:
opam pin add aws .
After pinning, you can install to the latest development version by checking out the commit and running:
opam update aws
Running individual test suites for a Service
AWS_ACCESS_KEY=???? \ AWS_SECRET_KEY=???? \ AWS_DEFAULT_REGION=ap-southeast-2 \ dune runtest libraries/ec2/lib_test
To generate service libaries during development and in preparation for release, first configure the build to enable code generation and run the
gen target of the Makefile. Note that the code generation tool has its own set of dependencies that must be installed in order for the build to succeed. In addition, the Makefile is written for GNU make. Some platforms such as OS X and FreeBSD do not have a GNU-compatible make installed by default. If you get strage error messages at this stage of the build, check your make. The following commands will configure the build for code generation and regenerate the libraries from the current definitions:
# Compile code generator make gen # Compile generated libraries make
To generate a release to opam requires
dune-release to be installed, then run:
Here's how you use the library and EC2 bindings to retrieve a list of regions from AWS and print them to
stdout. This example uses the Async runtime, but the equivalent lwt example is identical in structure.
open Core open Async open Aws_ec2 let to_result = function | `Ok x -> Ok x | `Error e -> Error (Aws.Error.format Errors.to_string e) let main () = Aws_async.Runtime.run_request ~region:"us-east-1" ~access_key:"<...>" ~secret_key:"<...>" (module DescribeRegions) (Types.DescribeRegionsRequest.make ()) >>| to_result >>| Option.value_exn >>|? List.iter ~f:(fun x -> Log.Global.info "%s" x.Types.Region.region_name) >>> function | Ok () -> exit 0 | Error e -> Log.Global.error "%s" e; exit 1 Scheduler.go_main ~main ()
If you get this error when running test or example code
Fatal error: exception (Failure "No SSL or TLS support compiled into Conduit")
You need to install the ssl versions of your chosen async framework
opam install lwt_ssl async_ssl
BSD3, see LICENSE file for its text.