ring-apigw-lambda-proxy
Ring middleware for handling AWS API Gateway Lamdbda proxy Requests and responses
Note! Currently only GET requests are supported.
Installation
Add the following to your project.clj :dependencies:
[ring-apigw-lambda-proxy "0.0.1"]Usage
AWS Lambda JSON Rest API example.
Add ring/ring-core, ring/ring-json,compojure,lambdada and cheshire dependencies.
(ns example
(:require [uswitch.lambada.core :refer [deflambdafn]]
[cheshire.core :refer [parse-stream generate-stream]]
[clojure.java.io :as io]
[ring.middleware.apigw :refer [wrap-apigw-lambda-proxy]]
[ring.middleware.params :refer [wrap-params]]
[ring.middleware.keyword-params :refer [wrap-keyword-params]]
[ring.middleware.json :refer [wrap-json-params
wrap-json-response]]
[ring.util.response :as r]
[compojure.core :refer :all]))
(defroutes app
(GET "/v1/hello" {params :params}
(let [name (get params :name "World")]
(-> (r/response {:message (format "Hello, %s" name)})))))
(def handler (wrap-apigw-lambda-proxy
(wrap-json-response
(wrap-json-params
(wrap-params
(wrap-keyword-params
app))))))
(deflambdafn example.LambdaFn [is os ctx]
(with-open [writer (io/writer os)]
(let [request (parse-stream (io/reader is :encoding "UTF-8") true)]
(generate-stream (handler request) writer))))