Microservices with Clojure: Develop event-driven, scalable, and reactive microservices with real-time monitoring by Anuj Kumar

Author:Anuj Kumar [Kumar, Anuj]
Language: eng
Format: epub
Tags: COM060180 - COMPUTERS / Web / Web Services and APIs, COM051000 - COMPUTERS / Programming / General, COM051280 - COMPUTERS / Programming Languages / Java
Publisher: Packt Publishing
Published: 2018-01-25T00:00:00+00:00

(def auth

{:name ::auth

:enter

(fn [context]

(let [token (-> context :request :headers (get "token"))]

(if-let [uid (and (not (nil? token)) (get-uid token))]

(assoc-in context [:request :tx-data :user] uid)

(chain/terminate

(assoc context

:response {:status 401

:body "Auth token not found"})))))

:error

(fn [context ex-info]

(assoc context

:response {:status 500

:body (.getMessage ex-info)}))})

;; Tabular routes

(def routes #{["/" :get (conj common-interceptors `auth `home-page)]})

As of now, for simplicity, let's assume that the get-uid function just returns a response with uid as a field that has a fixed value, hhuser, that can be picked by interceptors, such as home-page, to construct the response further down the interceptor chain:

(ns helping-hands.service

(:require [cheshire.core :as jp]

[io.pedestal.http :as http]

[io.pedestal.http.route :as route]

[io.pedestal.http.body-params :as body-params]

[io.pedestal.interceptor.chain :as chain]

[ring.util.response :as ring-resp]))

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