Pull request

.gitignore

@@ -1 +1,2 @@
-node_modules
+**node_modules
+**package.json

lib/controllers/ExplorerController.js

@@ -21,6 +21,10 @@ class ExplorerController{
         const explorers = Reader.readJsonFile("explorers.json");
         return ExplorerService.getAmountOfExplorersByMission(explorers, mission);
     }
+    static getExplorersByStack(stack){
+        const explorers = Reader.readJsonFile("explorers.json");
+        return ExplorerService.getExplorersByStack(explorers, stack);
+    }
 }
 
 module.exports = ExplorerController;

lib/server.js

@@ -31,7 +31,11 @@ app.get("/v1/fizzbuzz/:score", (request, response) => {
     const fizzbuzzTrick = ExplorerController.applyFizzbuzz(score);
     response.json({score: score, trick: fizzbuzzTrick});
 });
-
+app.get("/v1/explorers/stack/:stack", (request, response)=>{
+    const stack = request.params.stack;
+    const filtered = ExplorerController.getExplorersByStack(stack);
+    response.json(filtered);
+});
 app.listen(port, () => {
     console.log(`FizzBuzz API in localhost:${port}`);
 });

lib/services/ExplorerService.js

@@ -15,7 +15,14 @@ class ExplorerService {
         const explorersUsernames = explorersByMission.map((explorer) => explorer.githubUsername);
         return explorersUsernames;
     }
-
+    static getExplorersByStack(explorers, stack){
+        const explorersWithStack = explorers.filter((explorer) => {
+            if(explorer.stacks.includes(stack))
+                return explorer;
+        });
+        return explorersWithStack;
+    }
 }
 
+
 module.exports = ExplorerService;

test/services/ExplorerService.test.js

@@ -1,10 +1,26 @@
+const Reader = require("../../lib/utils/reader");
 const ExplorerService = require("./../../lib/services/ExplorerService");
+const explorers = Reader.readJsonFile("explorers.json");
 
 describe("Tests para ExplorerService", () => {
     test("Requerimiento 1: Calcular todos los explorers en una misión", () => {
         const explorers = [{mission: "node"}];
         const explorersInNode = ExplorerService.filterByMission(explorers, "node");
         expect(explorersInNode.length).toBe(1);
     });
+    test("2. Filtrar los explorers por stack", ()=>{
+        const explorers = Reader.readJsonFile("explorers.json");
+        const filter = ExplorerService.getExplorersByStack(explorers, "javascript");
+        const filter1 = ExplorerService.getExplorersByStack(explorers, "elm");
+        const filter2 = ExplorerService.getExplorersByStack(explorers, "groovy");
+        const filter3 = ExplorerService.getExplorersByStack(explorers, "reasonML");
+        const filter4 = ExplorerService.getExplorersByStack(explorers, "elixir");
+
+        for(let i =0; i<filter.length; i++){expect(filter[i].stacks).toContain("javascript");}
+        for(let i =0; i<filter1.length; i++){expect(filter1[i].stacks).toContain("elm");}
+        for(let i =0; i<filter2.length; i++){expect(filter2[i].stacks).toContain("groovy");}
+        for(let i =0; i<filter3.length; i++){expect(filter3[i].stacks).toContain("reasonML");}
+        for(let i =0; i<filter4.length; i++){expect(filter4[i].stacks).toContain("elixir");}
+    });
 
 });