diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
index 9fd74f2..e02b844 100644
--- a/.github/workflows/node.js.yml
+++ b/.github/workflows/node.js.yml
@@ -25,4 +25,9 @@ jobs:
         cache: 'npm'
     - run: npm install
     - run: npm test
+    - run: docker compose -f docker-compose.dev.yaml up -d
+    - run: sleep 3
+    - run: npm run start-itest &
+    - run: npm install -g newman
+    - run: newman run cities.postman_collection.json
   
\ No newline at end of file
diff --git a/cities.postman_collection.json b/cities.postman_collection.json
index bdfae01..0abb6fd 100644
--- a/cities.postman_collection.json
+++ b/cities.postman_collection.json
@@ -1,126 +1,285 @@
 {
-	"info": {
-		"_postman_id": "def0ceb3-9597-4f31-bc0f-54f466157759",
-		"name": "cities",
-		"schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json",
-		"_exporter_id": "3720353"
-	},
-	"item": [
-		{
-			"name": "cities",
-			"request": {
-				"method": "GET",
-				"header": [],
-				"url": {
-					"raw": "http://localhost:8080/cities",
-					"protocol": "http",
-					"host": [
-						"localhost"
-					],
-					"port": "8080",
-					"path": [
-						"cities"
-					]
-				}
-			},
-			"response": []
-		},
-		{
-			"name": "cities/:city",
-			"request": {
-				"method": "GET",
-				"header": [],
-				"url": {
-					"raw": "http://localhost:8080/cities/Zaragoza",
-					"protocol": "http",
-					"host": [
-						"localhost"
-					],
-					"port": "8080",
-					"path": [
-						"cities",
-						"Zaragoza"
-					]
-				}
-			},
-			"response": []
-		},
-		{
-			"name": "cities/:city",
-			"request": {
-				"method": "DELETE",
-				"header": [],
-				"url": {
-					"raw": "http://localhost:8080/cities/Zaragoza",
-					"protocol": "http",
-					"host": [
-						"localhost"
-					],
-					"port": "8080",
-					"path": [
-						"cities",
-						"Zaragoza"
-					]
-				}
-			},
-			"response": []
-		},
-		{
-			"name": "cities",
-			"request": {
-				"method": "POST",
-				"header": [],
-				"body": {
-					"mode": "raw",
-					"raw": "{\n    \"name\": \"Zaragoza\",\n    \"altitude\": 1000,\n    \"population\": 1000,\n    \"capital\": true\n}",
-					"options": {
-						"raw": {
-							"language": "json"
-						}
-					}
-				},
-				"url": {
-					"raw": "http://localhost:8080/cities",
-					"protocol": "http",
-					"host": [
-						"localhost"
-					],
-					"port": "8080",
-					"path": [
-						"cities"
-					]
-				}
-			},
-			"response": []
-		},
-		{
-			"name": "cities/:city",
-			"request": {
-				"method": "PUT",
-				"header": [],
-				"body": {
-					"mode": "raw",
-					"raw": "{\n    \"altitude\": 800,\n    \"population\": 102200,\n    \"capital\": true\n}",
-					"options": {
-						"raw": {
-							"language": "json"
-						}
-					}
-				},
-				"url": {
-					"raw": "http://localhost:8080/cities/Huesca",
-					"protocol": "http",
-					"host": [
-						"localhost"
-					],
-					"port": "8080",
-					"path": [
-						"cities",
-						"Huesca"
-					]
-				}
-			},
-			"response": []
-		}
-	]
+  "info": {
+    "_postman_id": "345cd8e8-b78f-4d18-ba0a-ffdc20aa9a71",
+    "name": "cities v2",
+    "schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json",
+    "_exporter_id": "3720353"
+  },
+  "item": [
+    {
+      "name": "cities OK",
+      "event": [
+        {
+          "listen": "test",
+          "script": {
+            "exec": [
+              "pm.test(\"Status code is 201\", function () {\r",
+              "  pm.response.to.have.status(201);\r",
+              "});"
+            ],
+            "type": "text/javascript",
+            "packages": {},
+            "requests": {}
+          }
+        }
+      ],
+      "request": {
+        "method": "POST",
+        "header": [],
+        "body": {
+          "mode": "raw",
+          "raw": "{\n    \"name\": \"Zaragohghza\",\n    \"altitude\": 1000,\n    \"population\": 1000,\n    \"capital\": true\n}",
+          "options": {
+            "raw": {
+              "language": "json"
+            }
+          }
+        },
+        "url": {
+          "raw": "http://localhost:8080/cities",
+          "protocol": "http",
+          "host": [
+            "localhost"
+          ],
+          "port": "8080",
+          "path": [
+            "cities"
+          ]
+        }
+      },
+      "response": []
+    },
+    {
+      "name": "cities bad-request",
+      "event": [
+        {
+          "listen": "test",
+          "script": {
+            "exec": [
+              "pm.test(\"Status code is 400\", function () {\r",
+              "  pm.response.to.have.status(400);\r",
+              "});"
+            ],
+            "type": "text/javascript",
+            "packages": {},
+            "requests": {}
+          }
+        }
+      ],
+      "request": {
+        "method": "POST",
+        "header": [],
+        "body": {
+          "mode": "raw",
+          "raw": "{\n    \"altitude\": 1000,\n    \"population\": 1000,\n    \"capital\": true\n}",
+          "options": {
+            "raw": {
+              "language": "json"
+            }
+          }
+        },
+        "url": {
+          "raw": "http://localhost:8080/cities",
+          "protocol": "http",
+          "host": [
+            "localhost"
+          ],
+          "port": "8080",
+          "path": [
+            "cities"
+          ]
+        }
+      },
+      "response": []
+    },
+    {
+      "name": "cities",
+      "event": [
+        {
+          "listen": "test",
+          "script": {
+            "exec": [
+              "pm.test(\"Status code is 200\", function () {\r",
+              "  pm.response.to.have.status(200);\r",
+              "});"
+            ],
+            "type": "text/javascript",
+            "packages": {},
+            "requests": {}
+          }
+        }
+      ],
+      "request": {
+        "method": "GET",
+        "header": [],
+        "url": {
+          "raw": "http://localhost:8080/cities",
+          "protocol": "http",
+          "host": [
+            "localhost"
+          ],
+          "port": "8080",
+          "path": [
+            "cities"
+          ]
+        }
+      },
+      "response": []
+    },
+    {
+      "name": "cities/:city",
+      "event": [
+        {
+          "listen": "test",
+          "script": {
+            "exec": [
+              "pm.test(\"Status code is 200\", function () {\r",
+              "  pm.response.to.have.status(200);\r",
+              "});\r",
+              "\r",
+              "pm.test('Response structure is ok', () => {\r",
+              "  pm.expect(pm.response.json()).to.have.property('id');\r",
+              "  pm.expect(pm.response.json()).to.have.property('name');\r",
+              "  pm.expect(pm.response.json()).to.have.property('population');\r",
+              "});"
+            ],
+            "type": "text/javascript",
+            "packages": {},
+            "requests": {}
+          }
+        }
+      ],
+      "request": {
+        "method": "GET",
+        "header": [],
+        "url": {
+          "raw": "http://localhost:8080/cities/2",
+          "protocol": "http",
+          "host": [
+            "localhost"
+          ],
+          "port": "8080",
+          "path": [
+            "cities",
+            "2"
+          ]
+        }
+      },
+      "response": []
+    },
+    {
+      "name": "cities/:city 404",
+      "event": [
+        {
+          "listen": "test",
+          "script": {
+            "exec": [
+              "pm.test(\"Status code is 404\", function () {\r",
+              "  pm.response.to.have.status(404);\r",
+              "});"
+            ],
+            "type": "text/javascript",
+            "packages": {},
+            "requests": {}
+          }
+        }
+      ],
+      "request": {
+        "method": "GET",
+        "header": [],
+        "url": {
+          "raw": "http://localhost:8080/cities/10",
+          "protocol": "http",
+          "host": [
+            "localhost"
+          ],
+          "port": "8080",
+          "path": [
+            "cities",
+            "10"
+          ]
+        }
+      },
+      "response": []
+    },
+    {
+      "name": "cities/:city",
+      "event": [
+        {
+          "listen": "test",
+          "script": {
+            "exec": [
+              "pm.test(\"Status code is 200\", function () {\r",
+              "  pm.response.to.have.status(200);\r",
+              "});"
+            ],
+            "type": "text/javascript",
+            "packages": {},
+            "requests": {}
+          }
+        }
+      ],
+      "request": {
+        "method": "PUT",
+        "header": [],
+        "body": {
+          "mode": "raw",
+          "raw": "{\n    \"altitude\": 800,\n    \"population\": 102200,\n    \"capital\": true\n}",
+          "options": {
+            "raw": {
+              "language": "json"
+            }
+          }
+        },
+        "url": {
+          "raw": "http://localhost:8080/cities/55",
+          "protocol": "http",
+          "host": [
+            "localhost"
+          ],
+          "port": "8080",
+          "path": [
+            "cities",
+            "55"
+          ]
+        }
+      },
+      "response": []
+    },
+    {
+      "name": "cities/:city",
+      "event": [
+        {
+          "listen": "test",
+          "script": {
+            "exec": [
+              "pm.test(\"Status code is 204\", function () {\r",
+              "  pm.response.to.have.status(204);\r",
+              "});"
+            ],
+            "type": "text/javascript",
+            "packages": {},
+            "requests": {}
+          }
+        }
+      ],
+      "request": {
+        "method": "DELETE",
+        "header": [],
+        "url": {
+          "raw": "http://localhost:8080/cities/12",
+          "protocol": "http",
+          "host": [
+            "localhost"
+          ],
+          "port": "8080",
+          "path": [
+            "cities",
+            "12"
+          ]
+        }
+      },
+      "response": []
+    }
+  ]
 }
\ No newline at end of file
diff --git a/docker-compose.dev.yaml b/docker-compose.dev.yaml
index 550e0c4..1b36ce4 100644
--- a/docker-compose.dev.yaml
+++ b/docker-compose.dev.yaml
@@ -4,11 +4,11 @@ services:
     image: mariadb:11.3.2
     container_name: cities-dev-db
     environment:
-      MYSQL_USER: $MARIADB_USER
-      MYSQL_PASSWORD: $MARIADB_PASSWORD
-      MYSQL_DATABASE: $MARIADB_DATABASE
+      MYSQL_USER: user
+      MYSQL_PASSWORD: password
+      MYSQL_DATABASE: cities
       MYSQL_PORT: 3306
-      MYSQL_ROOT_PASSWORD: $MARIADB_ROOT_PASSWORD
+      MYSQL_ROOT_PASSWORD: password
     ports:
       - "3306:3306"
     volumes:
diff --git a/package.json b/package.json
index fb1cb20..4a795ad 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,7 @@
     "name": "cities-backend",
     "scripts": {
         "start": "node src/app.js --config config.local.yaml",
+        "start-itest": "node src/app.js --config config.sample.yaml",
         "test": "jest src/test/unit"
     },
     "dependencies": {