feat: support redis connection url (#45)

Author: SkeLLLa

.gitignore

@@ -32,6 +32,7 @@ jspm_packages
 
 # Optional npm cache directory
 .npm
+package-lock.json
 
 # Optional REPL history
 .node_repl_history

README.md

@@ -21,6 +21,8 @@ automatically closed when the fastify instance is closed.
 const fastify = require('fastify')()
 
 fastify.register(require('fastify-redis'), { host: '127.0.0.1' })
+// or
+fastify.register(require('fastify-redis'), { url: 'redis://127.0.0.1', /* other redis options */ })
 
 fastify.get('/foo', (req, reply) => {
   const { redis } = fastify

index.js

@@ -6,6 +6,11 @@ const Redis = require('ioredis')
 function fastifyRedis (fastify, options, next) {
   const namespace = options.namespace
   delete options.namespace
+  let redisUrl
+  if (options.url) {
+    redisUrl = options.url
+    delete options.url
+  }
 
   let client = options.client || null
 
@@ -24,7 +29,11 @@ function fastifyRedis (fastify, options, next) {
 
     if (!client) {
       try {
-        client = new Redis(options)
+        if (redisUrl) {
+          client = new Redis(redisUrl, options)
+        } else {
+          client = new Redis(options)
+        }
       } catch (err) {
         return next(err)
       }

package.json

@@ -4,7 +4,9 @@
   "description": "Plugin to share a common Redis connection across Fastify.",
   "main": "index.js",
   "scripts": {
-    "test": "standard && tap test.js",
+    "test": "npm run lint && npm run unit",
+    "lint": "standard",
+    "unit": "tap test.js",
     "redis": "docker run -p 6379:6379 --rm redis:5"
   },
   "repository": {

test.js

@@ -37,6 +37,30 @@ test('fastify.redis should exist', (t) => {
   })
 })
 
+test('fastify.redis should support url', (t) => {
+  t.plan(4)
+  const fastify = Fastify()
+
+  fastify.register(fastifyRedis, {
+    url: 'redis://127.0.0.1',
+    otherOption: 'foo'
+  })
+
+  fastify.ready((err) => {
+    t.error(err)
+
+    fastify.redis.set('key', 'value', (err) => {
+      t.error(err)
+      fastify.redis.get('key', (err, val) => {
+        t.error(err)
+        t.equal(val, 'value')
+
+        fastify.close()
+      })
+    })
+  })
+})
+
 test('fastify.redis should be the redis client', (t) => {
   t.plan(4)
   const fastify = Fastify()