Adding 'getExplorersByStack' function, and endpoint

lib/controllers/ExplorerController.js

@@ -21,6 +21,11 @@ class ExplorerController{
         const explorers = Reader.readJsonFile("explorers.json");
         return ExplorerService.getAmountOfExplorersByMission(explorers, mission);
     }
+
+    static getExplorersByStack(mission) {
+        const explorers = Reader.readJsonFile("explorers.json);
+        return ExplorerService.getExplorersByStack(explorers, mission);
+    }
 }
 
 module.exports = ExplorerController;

lib/server.js

@@ -32,6 +32,11 @@ app.get("/v1/fizzbuzz/:score", (request, response) => {
     response.json({score: score, trick: fizzbuzzTrick});
 });
 
+app.get("/v1/explorers/stack/:stack", (request, response) => {
+    const stack = request.params.stack;
+    response.json(ExplorerController.getExplorersByStack(stack));
+});
+
 app.listen(port, () => {
     console.log(`FizzBuzz API in localhost:${port}`);
 });

lib/services/ExplorerService.js

@@ -15,7 +15,12 @@ class ExplorerService {
         const explorersUsernames = explorersByMission.map((explorer) => explorer.githubUsername);
         return explorersUsernames;
     }
-
+
+    static getExplorersByStack(explorers, mission) {
+        return explorers.filter((explorer) => {
+            return explorer.stacks.includes(mission);
+        });
+    }
 }
 
 module.exports = ExplorerService;