Merge pull request #4 from Seich/environment-variables

This adds environment variables.

examples/jsonplaceholder.yml

@@ -1,11 +1,15 @@
 version: 1
 endpoint: 'http://jsonplaceholder.typicode.com'
 
+environment:
+  the:
+    post: 1
+
 defaults:
   headers:
     hello: $posts.body.0.userId
 
-GET /posts/1: get-post
+GET /posts/$env.the.post: get-post
 
 GET /posts/:
   alias: posts

src/__tests__/__snapshots__/beau.spec.js.snap

@@ -10,6 +10,7 @@ Beau {
       },
     },
     "ENDPOINT": "http://jsonplaceholder.typicode.com",
+    "ENVIRONMENT": Object {},
     "PLUGINS": Array [],
     "VERSION": 1,
   },
@@ -19,6 +20,7 @@ Beau {
     "ENDPOINT",
     "PLUGINS",
     "DEFAULTS",
+    "ENVIRONMENT",
   ],
   "defaults": Object {
     "CACHE": false,
@@ -28,12 +30,15 @@ Beau {
       },
     },
     "ENDPOINT": "http://jsonplaceholder.typicode.com",
+    "ENVIRONMENT": Object {},
     "PLUGINS": Array [],
     "VERSION": 1,
   },
   "requests": RequestList {
     "cache": RequestCache {
-      "$cache": Object {},
+      "$cache": Object {
+        "$env": Object {},
+      },
     },
     "config": Object {
       "CACHE": false,
@@ -43,6 +48,7 @@ Beau {
         },
       },
       "ENDPOINT": "http://jsonplaceholder.typicode.com",
+      "ENVIRONMENT": Object {},
       "PLUGINS": Array [],
       "VERSION": 1,
     },

src/beau.js

@@ -10,7 +10,8 @@ class Beau {
 			CACHE: false,
 			ENDPOINT: '',
 			PLUGINS: [],
-			DEFAULTS: []
+			DEFAULTS: [],
+			ENVIRONMENT: {}
 		};
 
 		this.configKeys = Object.keys(this.defaults);

src/requestCache.js

@@ -5,6 +5,10 @@ class RequestCache {
 		this.$cache = {};
 	}
 
+	exists(key) {
+		return typeof this.$cache[key] !== 'undefined';
+	}
+
 	add(key, value) {
 		this.$cache[key] = value;
 	}

src/requestList.js

@@ -10,9 +10,15 @@ class RequestList {
 		this.modifiers = this.loadPlugins();
 		this.list = this.loadRequests(doc);
 		this.cache = new RequestCache();
+
+		this.cache.add(`$env`, this.config.ENVIRONMENT);
 	}
 
 	async execByAlias(alias) {
+		if (this.cache.exists(`$${alias}`)) {
+			return this.applyPostResponseModifiers(this.cache.get(`$${alias}`));
+		}
+
 		const request = this.list.find(r => r.ALIAS === alias);
 
 		if (typeof request === 'undefined') {
@@ -23,13 +29,7 @@ class RequestList {
 			await this.fetchDependencies(Array.from(request.DEPENDENCIES));
 			const response = await request.exec(this.modifiers, this.cache);
 
-			this.modifiers.forEach(mod => {
-				if (typeof mod.postResponse !== 'undefined') {
-					mod.postResponse(response);
-				}
-			});
-
-			return response;
+			return this.applyPostResponseModifiers(response);
 		} catch (reason) {
 			throw new Error(
 				`Request: ${request.VERB} ${request.ENDPOINT} FAILED. \n${reason}`
@@ -76,6 +76,16 @@ class RequestList {
 			return new (requireg(name))(settings);
 		});
 	}
+
+	applyPostResponseModifiers(response) {
+		this.modifiers.forEach(mod => {
+			if (typeof mod.postResponse !== 'undefined') {
+				mod.postResponse(response);
+			}
+		});
+
+		return response;
+	}
 }
 
 module.exports = RequestList;