Helper for configuring the AWS SDK to use Spurious
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# Spurious Clojure AWS SDK Helper

Inspired by the original Spurious Ruby AWS SDK Helper: which configures the AWS SDK to use Spurious (Spurious is a toolset allowing development against a subset of AWS resources, locally).


You can use this helper library from within either a standard Clojure application or via an application running within a Docker container (here is an example application).

The process is effectively the same; the only difference is that you'll need to pass a :docker keyword to the configure function instead of a :app keyword (see below for examples).

Step 1

Add the following dependency to your profile.clj:

{:dependencies [[spurious-aws-sdk-helper "0.2.0"]]}

The link to the library on Clojars is

Internally the library uses the Amazonica library, as there is currently no official Clojure AWS SDK.

You'll see we also use Amazonica in the following example application repository:

Note: your project doesn't have to use Amazonica; it just made creating the example application quicker/easier.

Step 2

Somewhere in your code add:

(require '[spurious-aws-sdk-helper.core :as core])

(core/configure :app {:s3  "test-bucket"
                      :sqs "test-queue"
                      :ddb (slurp "./resources/config/schema.yaml")})))

It's worth mentioning that you don't have to specify all the different services. You can pick and choose which one's you pass to the configure function to create for you.

Note: we load a DynamoDB schema from a .yaml file But feel free to inline the schema or load it from some other source

If your application is running within a Docker container then the configure function would be called like so:

(core/configure :docker {:s3  "test-bucket"
                         :sqs "test-queue"
                         :ddb (slurp "./resources/config/schema.yaml")})))

If you already have a part of your application that creates AWS resources, then you'll not need the Spurious helper to create those resources; but you will want to make sure that you call the Spurious helper's core/configure function before that part of your application is executed. This will allow the helper to still configure settings that allow the AWS SDK to work with the Spurious services.

The core/configure function has multi-arity and so you can call it without the map data structure, like so:

(core/configure :app)

Note: the Java SDK, which Spurious utilises under the covers, requires that each SDK API function is passed the same auth credentials (access/secret keys and endpoint). This means your application will need to ensure it uses the right credentials (the example app linked to above shows that you can use [spurious-aws-sdk-helper.utils :refer [endpoint cred]] for dev mode)

Testing locally

Clone this repository, make changes and then run:

lein install

Note: this will install the library into your local ~/.m2 cache directory. Leiningen will look for dependencies in the cache first

Once installed, you can safely reference the changes within this library in your application


Copyright © 2015 Integralist

Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.