Use the built-in getProvider() and region. (#12)

package.json

@@ -26,9 +26,7 @@
     "url": "https://github.com/Jimdo/serverless-dynamodb-ttl/issues"
   },
   "homepage": "https://github.com/Jimdo/serverless-dynamodb-ttl#readme",
-  "dependencies": {
-    "aws-sdk": "^2.45.0"
-  },
+  "dependencies": {},
   "standard": {
     "envs": [
       "node",
@@ -40,10 +38,10 @@
     ]
   },
   "devDependencies": {
-    "aws-sdk-mock": "^1.7.0",
     "coveralls": "^2.13.0",
     "dot-json": "^1.0.3",
     "jest": "^19.0.2",
+    "sinon": "^2.3.2",
     "snazzy": "^7.0.0",
     "standard": "^10.0.2"
   }

src/plugin.js

@@ -2,12 +2,12 @@
 
 const assert = require('assert')
 const util = require('util')
-const AWS = require('aws-sdk')
 
 class Plugin {
   constructor (serverless, options) {
     this.serverless = serverless
     this.options = options || {}
+    this.provider = serverless.getProvider('aws')
 
     this.hooks = {
       'after:deploy:deploy': this.afterDeploy.bind(this)
@@ -26,23 +26,11 @@ class Plugin {
     assert(this.list().length > 0, 'No configuration found')
   }
 
-  configure () {
-    this.region = this.serverless.service.provider.region
-
-    if (this.options && this.options.region) {
-      this.region = this.options.region
-    }
-
-    this.dynamodb = new AWS.DynamoDB({ region: this.region })
-  }
-
   afterDeploy () {
     return Promise.resolve().then(
       this.validate.bind(this)
     ).then(
-      this.configure.bind(this)
-    ).then(
-      () => this.serverless.cli.log(util.format('Enabling TTL setting(s) for DynamoDB (%s)', this.region))
+      () => this.serverless.cli.log(util.format('Enabling TTL setting(s) for DynamoDB (%s)', this.options.region))
     ).then(
       () => this.list().map(
         data => this.check(data.table).then(
@@ -55,25 +43,21 @@ class Plugin {
   }
 
   check (table) {
-    return this.dynamodb.describeTimeToLive(
-      {
-        TableName: table
-      }
-    ).promise().then(
+    return this.provider.request('DynamoDB', 'describeTimeToLive', {
+      TableName: table
+    }).then(
       res => res.TimeToLiveDescription.TimeToLiveStatus === 'ENABLED'
     )
   }
 
   enable (data) {
-    return this.dynamodb.updateTimeToLive(
-      {
-        TableName: data.table,
-        TimeToLiveSpecification: {
-          AttributeName: data.field,
-          Enabled: true
-        }
+    return this.provider.request('DynamoDB', 'updateTimeToLive', {
+      TableName: data.table,
+      TimeToLiveSpecification: {
+        AttributeName: data.field,
+        Enabled: true
       }
-    ).promise()
+    })
   }
 
   list () {