dao/create_testdata.sql

 INSERT INTO person (id, navn, alder, adresse) VALUES
     (1, 'Hei Sveisen', 21, 'Gata 1'),
-    (2, 'Hei Heisen', 22, 'Gata 2');
+    (2, 'Hei Leisen', 21, 'Gata 2'),
+    (3, 'Hei Meisen', 21, 'Gata 3'),
+    (4, 'Hei Peisen', 21, 'Gata 4'),
+    (5, 'Hei Heisen', 22, 'Gata 5');

dao/persondao.js

@@ -13,6 +13,24 @@ module.exports = class PersonDao extends Dao {
     );
   }
 
+  updateOne(json, id, callback) {
+    var val = [json.navn, json.adresse, json.alder, id];
+    super.query(
+      "UPDATE person SET navn=?, adresse=?, alder=? WHERE id=?",
+      val,
+      callback 
+    );
+  }
+  
+  deleteOne(id, callback) {
+    super.query(
+      "DELETE FROM person WHERE id=?;",
+      [id],
+      callback
+    );
+  }
+  
+
   createOne(json, callback) {
     var val = [json.navn, json.adresse, json.alder];
     super.query(
@@ -21,4 +39,4 @@ module.exports = class PersonDao extends Dao {
       callback
     );
   }
-};
+}

dao/persondao.test.js

@@ -77,3 +77,44 @@ test("get all persons from db", done => {
 
   personDao.getAll(callback);
 });
+
+test("delete one person from db", done => {
+  function callback(status, data) {
+    console.log(
+      "Test callback: status=" + status + ", data.length=" + data.length
+    );
+    expect(data.affectedRows).toBeGreaterThanOrEqual(1);
+    done();
+  }
+
+  personDao.deleteOne(1, callback);
+});
+
+test("get all persons from db after delete", done => {
+  function callback(status, data) {
+    console.log(
+      "Test callback: status=" + status + ", data.length=" + data.length
+    );
+    expect(data.length).toBe(5);
+    done();
+  }
+
+  personDao.getAll(callback);
+});
+
+test("update one person from db", done => {
+  function callback(status, data) {
+    console.log(
+      "Test callback: status=" + status + ", data=" + JSON.stringify(data)
+    );
+    expect(data.affectedRows).toBeGreaterThanOrEqual(1);
+    done();
+  }
+
+  personDao.updateOne(
+    { navn: "Billy Bob", adresse: "Gata 3", alder: "34"},
+    {id:"1"},
+    callback
+  );
+});
+

server.js

@@ -41,4 +41,20 @@ app.post("/person", (req, res) => {
   });
 });
 
+pp.delete("/person/:personId", (req, res) => {
+  console.log("/person/:personId: fikk delete-request fra klient");
+  personDao.deleteOne(req.params.personId, (status, data) => {
+    res.status(status);
+    res.json(data);
+  });
+});
+
+app.put("/person/:personId", (req, res) => {
+  console.log("Fikk put-request fra klienten");
+  personDao.updateOne(req.body, req.params.personId, (status, data) => {
+    res.status(status);
+    res.json(data);
+  });
+});
+
 var server = app.listen(8080);