Add controller with endpoint for listing all

Author: Ferenc Hammerl

src/main/java/com/fhammerl/polls/controllers/PollsController.java

@@ -0,0 +1,21 @@
+package com.fhammerl.polls.controllers;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+import com.fhammerl.polls.repositories.PollRepository;
+import com.fhammerl.polls.models.Poll;
+
+@RestController
+@RequestMapping("api/v1/polls")
+public class PollsController {
+    @Autowired
+    private PollRepository pollRepository;
+
+    @GetMapping
+    public List<Poll> list() {
+        return pollRepository.findAll();
+    }
+}