diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..c9b6fc5
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,14 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "command": "npm run start:dev -b swc",
+            "name": "Start Nest",
+            "request": "launch",
+            "type": "node-terminal"
+        },
+    ]
+}
\ No newline at end of file
diff --git a/nest-cli.json b/nest-cli.json
index f9aa683..e8552c2 100644
--- a/nest-cli.json
+++ b/nest-cli.json
@@ -3,6 +3,7 @@
   "collection": "@nestjs/schematics",
   "sourceRoot": "src",
   "compilerOptions": {
-    "deleteOutDir": true
+    "deleteOutDir": true,
+    "plugins": ["@nestjs/swagger"]
   }
 }
diff --git a/package-lock.json b/package-lock.json
index 0582a3b..3cc38b1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,8 +10,14 @@
       "license": "MIT",
       "dependencies": {
         "@nestjs/common": "^10.3.2",
+        "@nestjs/config": "^3.2.2",
         "@nestjs/core": "^10.3.2",
+        "@nestjs/mapped-types": "^2.0.5",
+        "@nestjs/mongoose": "^10.0.6",
         "@nestjs/platform-express": "^10.3.2",
+        "@nestjs/swagger": "^7.3.1",
+        "express-session": "^1.18.0",
+        "mongoose": "^8.4.1",
         "reflect-metadata": "^0.2.1",
         "rxjs": "^7.8.1"
       },
@@ -22,6 +28,7 @@
         "@swc/cli": "^0.3.9",
         "@swc/core": "^1.4.0",
         "@types/express": "^4.17.21",
+        "@types/express-session": "^1.18.0",
         "@types/jest": "^29.5.12",
         "@types/node": "^20.11.16",
         "@types/supertest": "^6.0.2",
@@ -90,6 +97,30 @@
         }
       }
     },
+    "node_modules/@angular-devkit/core/node_modules/ajv": {
+      "version": "8.12.0",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.12.0.tgz",
+      "integrity": "sha512-sRu1kpcO9yLtYxBKvqfTeh9KzZEwO3STyX1HT+4CaDzC6HpTGYhIhPIzj9XuKU7KYDwnaeh5hcOwjy1QuJzBPA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "fast-deep-equal": "^3.1.1",
+        "json-schema-traverse": "^1.0.0",
+        "require-from-string": "^2.0.2",
+        "uri-js": "^4.2.2"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/epoberezkin"
+      }
+    },
+    "node_modules/@angular-devkit/core/node_modules/json-schema-traverse": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
+      "integrity": "sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@angular-devkit/core/node_modules/picomatch": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-3.0.1.tgz",
@@ -975,28 +1006,6 @@
         "url": "https://opencollective.com/eslint"
       }
     },
-    "node_modules/@eslint/eslintrc/node_modules/ajv": {
-      "version": "6.12.6",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
-      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
-      "dev": true,
-      "dependencies": {
-        "fast-deep-equal": "^3.1.1",
-        "fast-json-stable-stringify": "^2.0.0",
-        "json-schema-traverse": "^0.4.1",
-        "uri-js": "^4.2.2"
-      },
-      "funding": {
-        "type": "github",
-        "url": "https://github.com/sponsors/epoberezkin"
-      }
-    },
-    "node_modules/@eslint/eslintrc/node_modules/json-schema-traverse": {
-      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz",
-      "integrity": "sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==",
-      "dev": true
-    },
     "node_modules/@eslint/js": {
       "version": "8.56.0",
       "resolved": "https://registry.npmjs.org/@eslint/js/-/js-8.56.0.tgz",
@@ -1599,6 +1608,12 @@
         "node": ">=8"
       }
     },
+    "node_modules/@microsoft/tsdoc": {
+      "version": "0.14.2",
+      "resolved": "https://registry.npmjs.org/@microsoft/tsdoc/-/tsdoc-0.14.2.tgz",
+      "integrity": "sha512-9b8mPpKrfeGRuhFH5iO1iwCLeIIsV6+H1sRfxbkoGXIyQE2BTsPd9zqSqQJ+pv5sJ/hT5M1zvOFL02MnEezFug==",
+      "license": "MIT"
+    },
     "node_modules/@mole-inc/bin-wrapper": {
       "version": "8.0.1",
       "resolved": "https://registry.npmjs.org/@mole-inc/bin-wrapper/-/bin-wrapper-8.0.1.tgz",
@@ -1618,6 +1633,15 @@
         "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
       }
     },
+    "node_modules/@mongodb-js/saslprep": {
+      "version": "1.1.7",
+      "resolved": "https://registry.npmjs.org/@mongodb-js/saslprep/-/saslprep-1.1.7.tgz",
+      "integrity": "sha512-dCHW/oEX0KJ4NjDULBo3JiOaK5+6axtpBbS+ao2ZInoAL9/YRQLhXzSNAFz7hP4nzLkIqsfYAK/PDE3+XHny0Q==",
+      "license": "MIT",
+      "dependencies": {
+        "sparse-bitfield": "^3.0.3"
+      }
+    },
     "node_modules/@nestjs/cli": {
       "version": "10.3.1",
       "resolved": "https://registry.npmjs.org/@nestjs/cli/-/cli-10.3.1.tgz",
@@ -1749,6 +1773,22 @@
         }
       }
     },
+    "node_modules/@nestjs/config": {
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/@nestjs/config/-/config-3.2.2.tgz",
+      "integrity": "sha512-vGICPOui5vE6kPz1iwQ7oCnp3qWgqxldPmBQ9onkVoKlBtyc83KJCr7CjuVtf4OdovMAVcux1d8Q6jglU2ZphA==",
+      "license": "MIT",
+      "dependencies": {
+        "dotenv": "16.4.5",
+        "dotenv-expand": "10.0.0",
+        "lodash": "4.17.21",
+        "uuid": "9.0.1"
+      },
+      "peerDependencies": {
+        "@nestjs/common": "^8.0.0 || ^9.0.0 || ^10.0.0",
+        "rxjs": "^7.1.0"
+      }
+    },
     "node_modules/@nestjs/core": {
       "version": "10.3.2",
       "resolved": "https://registry.npmjs.org/@nestjs/core/-/core-10.3.2.tgz",
@@ -1786,6 +1826,38 @@
         }
       }
     },
+    "node_modules/@nestjs/mapped-types": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/@nestjs/mapped-types/-/mapped-types-2.0.5.tgz",
+      "integrity": "sha512-bSJv4pd6EY99NX9CjBIyn4TVDoSit82DUZlL4I3bqNfy5Gt+gXTa86i3I/i0iIV9P4hntcGM5GyO+FhZAhxtyg==",
+      "license": "MIT",
+      "peerDependencies": {
+        "@nestjs/common": "^8.0.0 || ^9.0.0 || ^10.0.0",
+        "class-transformer": "^0.4.0 || ^0.5.0",
+        "class-validator": "^0.13.0 || ^0.14.0",
+        "reflect-metadata": "^0.1.12 || ^0.2.0"
+      },
+      "peerDependenciesMeta": {
+        "class-transformer": {
+          "optional": true
+        },
+        "class-validator": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@nestjs/mongoose": {
+      "version": "10.0.6",
+      "resolved": "https://registry.npmjs.org/@nestjs/mongoose/-/mongoose-10.0.6.tgz",
+      "integrity": "sha512-J8jFgSvCDEKMXU57QAIdXIlWQsOFWK+x0PM1KI/0zHe3/4JrAtFGTFD08hRX3IHk+WJT9g/XQIpMSNM7/10Jlg==",
+      "license": "MIT",
+      "peerDependencies": {
+        "@nestjs/common": "^8.0.0 || ^9.0.0 || ^10.0.0",
+        "@nestjs/core": "^8.0.0 || ^9.0.0 || ^10.0.0",
+        "mongoose": "^6.0.2 || ^7.0.0 || ^8.0.0",
+        "rxjs": "^7.0.0"
+      }
+    },
     "node_modules/@nestjs/platform-express": {
       "version": "10.3.2",
       "resolved": "https://registry.npmjs.org/@nestjs/platform-express/-/platform-express-10.3.2.tgz",
@@ -1867,6 +1939,30 @@
         "yarn": ">= 1.13.0"
       }
     },
+    "node_modules/@nestjs/schematics/node_modules/ajv": {
+      "version": "8.12.0",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.12.0.tgz",
+      "integrity": "sha512-sRu1kpcO9yLtYxBKvqfTeh9KzZEwO3STyX1HT+4CaDzC6HpTGYhIhPIzj9XuKU7KYDwnaeh5hcOwjy1QuJzBPA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "fast-deep-equal": "^3.1.1",
+        "json-schema-traverse": "^1.0.0",
+        "require-from-string": "^2.0.2",
+        "uri-js": "^4.2.2"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/epoberezkin"
+      }
+    },
+    "node_modules/@nestjs/schematics/node_modules/json-schema-traverse": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
+      "integrity": "sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@nestjs/schematics/node_modules/picomatch": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-3.0.1.tgz",
@@ -1879,6 +1975,39 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/@nestjs/swagger": {
+      "version": "7.3.1",
+      "resolved": "https://registry.npmjs.org/@nestjs/swagger/-/swagger-7.3.1.tgz",
+      "integrity": "sha512-LUC4mr+5oAleEC/a2j8pNRh1S5xhKXJ1Gal5ZdRjt9XebQgbngXCdW7JTA9WOEcwGtFZN9EnKYdquzH971LZfw==",
+      "license": "MIT",
+      "dependencies": {
+        "@microsoft/tsdoc": "^0.14.2",
+        "@nestjs/mapped-types": "2.0.5",
+        "js-yaml": "4.1.0",
+        "lodash": "4.17.21",
+        "path-to-regexp": "3.2.0",
+        "swagger-ui-dist": "5.11.2"
+      },
+      "peerDependencies": {
+        "@fastify/static": "^6.0.0 || ^7.0.0",
+        "@nestjs/common": "^9.0.0 || ^10.0.0",
+        "@nestjs/core": "^9.0.0 || ^10.0.0",
+        "class-transformer": "*",
+        "class-validator": "*",
+        "reflect-metadata": "^0.1.12 || ^0.2.0"
+      },
+      "peerDependenciesMeta": {
+        "@fastify/static": {
+          "optional": true
+        },
+        "class-transformer": {
+          "optional": true
+        },
+        "class-validator": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@nestjs/testing": {
       "version": "10.3.2",
       "resolved": "https://registry.npmjs.org/@nestjs/testing/-/testing-10.3.2.tgz",
@@ -2463,6 +2592,16 @@
         "@types/send": "*"
       }
     },
+    "node_modules/@types/express-session": {
+      "version": "1.18.0",
+      "resolved": "https://registry.npmjs.org/@types/express-session/-/express-session-1.18.0.tgz",
+      "integrity": "sha512-27JdDRgor6PoYlURY+Y5kCakqp5ulC0kmf7y+QwaY+hv9jEFuQOThgkjyA53RP3jmKuBsH5GR6qEfFmvb8mwOA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/express": "*"
+      }
+    },
     "node_modules/@types/graceful-fs": {
       "version": "4.1.7",
       "resolved": "https://registry.npmjs.org/@types/graceful-fs/-/graceful-fs-4.1.7.tgz",
@@ -2629,6 +2768,21 @@
         "@types/superagent": "^8.1.0"
       }
     },
+    "node_modules/@types/webidl-conversions": {
+      "version": "7.0.3",
+      "resolved": "https://registry.npmjs.org/@types/webidl-conversions/-/webidl-conversions-7.0.3.tgz",
+      "integrity": "sha512-CiJJvcRtIgzadHCYXw7dqEnMNRjhGZlYK05Mj9OyktqV8uVT8fD2BFOB7S1uwBE3Kj2Z+4UyPmFw/Ixgw/LAlA==",
+      "license": "MIT"
+    },
+    "node_modules/@types/whatwg-url": {
+      "version": "11.0.5",
+      "resolved": "https://registry.npmjs.org/@types/whatwg-url/-/whatwg-url-11.0.5.tgz",
+      "integrity": "sha512-coYR071JRaHa+xoEvvYqvnIHaVqaYrLPbsufM9BF63HkwI5Lgmy2QR8Q5K/lYDYo5AK82wOvSOS0UsLTpTG7uQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/webidl-conversions": "*"
+      }
+    },
     "node_modules/@types/yargs": {
       "version": "17.0.25",
       "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-17.0.25.tgz",
@@ -3074,14 +3228,15 @@
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-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.12.0.tgz",
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+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "fast-deep-equal": "^3.1.1",
-        "json-schema-traverse": "^1.0.0",
-        "require-from-string": "^2.0.2",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.4.1",
         "uri-js": "^4.2.2"
       },
       "funding": {
@@ -3106,6 +3261,30 @@
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       }
     },
+    "node_modules/ajv-formats/node_modules/ajv": {
+      "version": "8.14.0",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.14.0.tgz",
+      "integrity": "sha512-oYs1UUtO97ZO2lJ4bwnWeQW8/zvOIQLGKcvPTsWmvc2SYgBb+upuNS5NxoLaMU4h8Ju3Nbj6Cq8mD2LQoqVKFA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "fast-deep-equal": "^3.1.3",
+        "json-schema-traverse": "^1.0.0",
+        "require-from-string": "^2.0.2",
+        "uri-js": "^4.4.1"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/epoberezkin"
+      }
+    },
+    "node_modules/ajv-formats/node_modules/json-schema-traverse": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
+      "integrity": "sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/ajv-keywords": {
       "version": "3.5.2",
       "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.5.2.tgz",
@@ -3221,8 +3400,7 @@
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-      "dev": true
+      "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="
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       "version": "1.1.1",
@@ -3648,6 +3826,15 @@
         "node-int64": "^0.4.0"
       }
     },
+    "node_modules/bson": {
+      "version": "6.7.0",
+      "resolved": "https://registry.npmjs.org/bson/-/bson-6.7.0.tgz",
+      "integrity": "sha512-w2IquM5mYzYZv6rs3uN2DZTOBe2a0zXLj53TGDqwF4l6Sz/XsISrisXOJihArF9+BZ6Cq/GjVht7Sjfmri7ytQ==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=16.20.1"
+      }
+    },
     "node_modules/buffer": {
       "version": "5.7.1",
       "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.7.1.tgz",
@@ -4212,7 +4399,6 @@
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       },
@@ -4403,6 +4589,27 @@
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       }
     },
+    "node_modules/dotenv": {
+      "version": "16.4.5",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.4.5.tgz",
+      "integrity": "sha512-ZmdL2rui+eB2YwhsWzjInR8LldtZHGDoQ1ugH85ppHKwpUHL7j7rN0Ti9NCnGiQbhaZ11FpR+7ao1dNsmduNUg==",
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    },
+    "node_modules/dotenv-expand": {
+      "version": "10.0.0",
+      "resolved": "https://registry.npmjs.org/dotenv-expand/-/dotenv-expand-10.0.0.tgz",
+      "integrity": "sha512-GopVGCpVS1UKH75VKHGuQFqS1Gusej0z4FyQkPdwjil2gNIv+LNsqBlboOzpJFZKVT95GkCyWJbBSdFEFUWI2A==",
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/eastasianwidth": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/eastasianwidth/-/eastasianwidth-0.2.0.tgz",
@@ -4639,22 +4846,6 @@
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-    "node_modules/eslint/node_modules/ajv": {
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-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
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-      "dev": true,
-      "dependencies": {
-        "fast-deep-equal": "^3.1.1",
-        "fast-json-stable-stringify": "^2.0.0",
-        "json-schema-traverse": "^0.4.1",
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-      },
-      "funding": {
-        "type": "github",
-        "url": "https://github.com/sponsors/epoberezkin"
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     "node_modules/eslint/node_modules/eslint-scope": {
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@@ -4692,12 +4883,6 @@
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@@ -9357,6 +9760,18 @@
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diff --git a/package.json b/package.json
index 77dc893..9246793 100644
--- a/package.json
+++ b/package.json
@@ -20,8 +20,14 @@
   },
   "dependencies": {
     "@nestjs/common": "^10.3.2",
+    "@nestjs/config": "^3.2.2",
     "@nestjs/core": "^10.3.2",
+    "@nestjs/mapped-types": "^2.0.5",
+    "@nestjs/mongoose": "^10.0.6",
     "@nestjs/platform-express": "^10.3.2",
+    "@nestjs/swagger": "^7.3.1",
+    "express-session": "^1.18.0",
+    "mongoose": "^8.4.1",
     "reflect-metadata": "^0.2.1",
     "rxjs": "^7.8.1"
   },
@@ -32,6 +38,7 @@
     "@swc/cli": "^0.3.9",
     "@swc/core": "^1.4.0",
     "@types/express": "^4.17.21",
+    "@types/express-session": "^1.18.0",
     "@types/jest": "^29.5.12",
     "@types/node": "^20.11.16",
     "@types/supertest": "^6.0.2",
diff --git a/src/app.module.ts b/src/app.module.ts
index 8662803..2ee0b62 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -1,10 +1,23 @@
 import { Module } from '@nestjs/common';
+import { MongooseModule } from '@nestjs/mongoose';
+import { ConfigModule } from '@nestjs/config';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
+import { GamesModule } from './games/games.module';
+import { UsersModule } from './users/users.module';
+import { CardsService } from './cards/cards.service';
 
 @Module({
-  imports: [],
+  imports: [
+    ConfigModule.forRoot(),
+    MongooseModule.forRoot('mongodb://localhost:27017', {
+      auth: { password: 'example', username: 'root' },
+      dbName: 'heron',
+    }),
+    GamesModule,
+    UsersModule,
+  ],
   controllers: [AppController],
-  providers: [AppService],
+  providers: [AppService, CardsService],
 })
 export class AppModule {}
diff --git a/src/cards/cards.module.ts b/src/cards/cards.module.ts
new file mode 100644
index 0000000..f3c32d7
--- /dev/null
+++ b/src/cards/cards.module.ts
@@ -0,0 +1,13 @@
+import { Module } from '@nestjs/common';
+import { MongooseModule } from '@nestjs/mongoose';
+import { Card, CardSchema } from './schemas/cards.schema';
+
+@Module({
+  imports: [
+    MongooseModule.forFeature([{ name: Card.name, schema: CardSchema }]),
+  ],
+  exports: [MongooseModule],
+})
+export class CardsModule {
+  schema = CardSchema;
+}
diff --git a/src/cards/cards.service.spec.ts b/src/cards/cards.service.spec.ts
new file mode 100644
index 0000000..2e26f28
--- /dev/null
+++ b/src/cards/cards.service.spec.ts
@@ -0,0 +1,18 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { CardsService } from './cards.service';
+
+describe('CardsService', () => {
+  let service: CardsService;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [CardsService],
+    }).compile();
+
+    service = module.get<CardsService>(CardsService);
+  });
+
+  it('should be defined', () => {
+    expect(service).toBeDefined();
+  });
+});
diff --git a/src/cards/cards.service.ts b/src/cards/cards.service.ts
new file mode 100644
index 0000000..136936a
--- /dev/null
+++ b/src/cards/cards.service.ts
@@ -0,0 +1,26 @@
+import { Injectable } from '@nestjs/common';
+import path from 'node:path';
+import fs from 'node:fs/promises';
+
+@Injectable()
+export class CardsService {
+  async loadCards(): Promise<void> {
+    const cardPath = path.join(path.resolve(), 'cards');
+    const files = await fs.readdir(cardPath);
+    const processed = await Promise.all(
+      files.map(async (f) => {
+        return [
+          path.parse(f).name,
+          (
+            await fs
+              .readFile(path.join(cardPath, f))
+              .then((e) => JSON.parse(e.toString()))
+          ).cards,
+        ];
+      }),
+    );
+
+    const packs = Object.fromEntries(processed);
+    console.log(packs);
+  }
+}
diff --git a/src/cards/schemas/cards.schema.ts b/src/cards/schemas/cards.schema.ts
new file mode 100644
index 0000000..2c6f65e
--- /dev/null
+++ b/src/cards/schemas/cards.schema.ts
@@ -0,0 +1,18 @@
+import { Schema, SchemaFactory } from '@nestjs/mongoose';
+import { CardFaction, CardRole, CardType, EffectParser } from './cards.types';
+
+@Schema()
+export class Card {
+  cardId: number;
+  role: CardRole;
+  cardType: CardType;
+  faction: CardFaction;
+  name: string;
+  initAmount: number;
+  cost?: number;
+  defense?: number;
+  guard?: boolean;
+  effects: EffectParser[];
+}
+
+export const CardSchema = SchemaFactory.createForClass(Card);
diff --git a/src/cards/schemas/cards.types.ts b/src/cards/schemas/cards.types.ts
new file mode 100644
index 0000000..78f27e0
--- /dev/null
+++ b/src/cards/schemas/cards.types.ts
@@ -0,0 +1,102 @@
+/**
+ *
+ */
+export enum CardRole {
+  PERSONAL = 'personal',
+  MARKET = 'market',
+  FIRE_GEM = 'fire_gem',
+}
+
+/**
+ * Playable card types
+ */
+export enum CardType {
+  HERO = 'hero',
+  HERO_ABILITY = 'hero_ability',
+  CURRENCY = 'currency',
+  WEAPON = 'weapon',
+  CHAMPION = 'champion',
+  ACTION = 'action',
+  ITEM = 'item',
+}
+
+/**
+ * Playable card factions
+ */
+export enum CardFaction {
+  BASE = 'base',
+
+  BLUE = 'blue',
+  RED = 'red',
+  GREEN = 'green',
+  YELLOW = 'yellow',
+}
+
+export enum CardEffects {
+  GOLD = 'gold',
+  DAMAGE = 'damage',
+  HEAL = 'heal',
+  PREPARE = 'prepare',
+  STUN = 'stun',
+  SACRIFICE = 'sacrifice',
+  DRAW = 'draw',
+  DRAW_AND_DISCARD = 'draw_and_discard',
+  MAKE_DISCARD = 'make_discard',
+  RESTACK_DISCARDED_CHAMPION = 'restack_discarded_champion',
+  RESTACK_DISCARDED_CARD = 'restack_discarded_card',
+  STACK_NEXT_ACTION_BOUGHT = 'stack_next_action_bought',
+  STACK_NEXT_CARD_BOUGHT = 'stack_next_card_bought',
+  PLAY_NEXT_CARD_BOUGHT = 'play_next_card_bought',
+}
+
+export enum Per {
+  CHAMPION = 'champion',
+  OTHER_CHAMPION = 'other_champion',
+  OTHER_GUARD = 'other_guard',
+  CARD_OF_SAME_FACTION = 'card_of_same_faction',
+  OTHER_CARD_OF_SAME_FACTION = 'other_card_of_same_faction',
+}
+
+export enum EffectType {
+  CHAMPION_ACTION = 'champion_action',
+  SUICIDE = 'suicide',
+  FACTION_COMBO = 'faction_combo',
+}
+
+export enum EffectTypeSpecial {
+  CHAMPION_AMOUNT = 'champion_amount',
+  TOTAL_DAMAGE = 'total_damage',
+  CARD_AMOUNT = 'card_amount',
+  ACTION_AMOUNT = 'action_amount',
+}
+
+export type EffectTypeVerbose = {
+  id: EffectType | EffectTypeSpecial;
+  faction?: string;
+  amount?: number;
+  card_id?: number;
+};
+
+export type EffectParser = {
+  effect: CardEffects;
+  amount: number;
+  times?: number;
+  sub_effects?: EffectParser[];
+  effect_type?: EffectType | EffectTypeVerbose;
+  per?: Per;
+  mutex?: number;
+};
+
+export type CardParser = {
+  id: number;
+  role: CardRole;
+  card_type: CardType;
+  faction: CardFaction;
+  name: string;
+  init_amount: number;
+  cost?: number;
+  amount: number;
+  defense?: number;
+  guard?: boolean;
+  effects: EffectParser[];
+};
diff --git a/src/games/dto/create-game.dto.ts b/src/games/dto/create-game.dto.ts
new file mode 100644
index 0000000..717d4f6
--- /dev/null
+++ b/src/games/dto/create-game.dto.ts
@@ -0,0 +1 @@
+export class CreateGameDto {}
diff --git a/src/games/dto/update-game.dto.ts b/src/games/dto/update-game.dto.ts
new file mode 100644
index 0000000..94f8a53
--- /dev/null
+++ b/src/games/dto/update-game.dto.ts
@@ -0,0 +1,4 @@
+import { PartialType } from '@nestjs/mapped-types';
+import { CreateGameDto } from './create-game.dto';
+
+export class UpdateGameDto extends PartialType(CreateGameDto) {}
diff --git a/src/games/games.controller.spec.ts b/src/games/games.controller.spec.ts
new file mode 100644
index 0000000..d2eb47d
--- /dev/null
+++ b/src/games/games.controller.spec.ts
@@ -0,0 +1,20 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { GamesController } from './games.controller';
+import { GamesService } from './games.service';
+
+describe('GamesController', () => {
+  let controller: GamesController;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      controllers: [GamesController],
+      providers: [GamesService],
+    }).compile();
+
+    controller = module.get<GamesController>(GamesController);
+  });
+
+  it('should be defined', () => {
+    expect(controller).toBeDefined();
+  });
+});
diff --git a/src/games/games.controller.ts b/src/games/games.controller.ts
new file mode 100644
index 0000000..e7e9bd5
--- /dev/null
+++ b/src/games/games.controller.ts
@@ -0,0 +1,42 @@
+import {
+  Controller,
+  Get,
+  Post,
+  Body,
+  Patch,
+  Param,
+  Delete,
+} from '@nestjs/common';
+import { GamesService } from './games.service';
+import { CreateGameDto } from './dto/create-game.dto';
+import { UpdateGameDto } from './dto/update-game.dto';
+
+@Controller('games')
+export class GamesController {
+  constructor(private readonly gamesService: GamesService) {}
+
+  @Post()
+  create() {
+    return this.gamesService.create();
+  }
+
+  @Get()
+  findAll() {
+    return this.gamesService.findAll();
+  }
+
+  @Get(':id')
+  findOne(@Param('id') id: string) {
+    return this.gamesService.findOne(id);
+  }
+
+  // @Patch(':id')
+  // update(@Param('id') id: string, @Body() updateGameDto: UpdateGameDto) {
+  //   return this.gamesService.update(+id, updateGameDto);
+  // }
+
+  @Delete(':id')
+  remove(@Param('id') id: string) {
+    return this.gamesService.remove(+id);
+  }
+}
diff --git a/src/games/games.module.ts b/src/games/games.module.ts
new file mode 100644
index 0000000..7eb3d7d
--- /dev/null
+++ b/src/games/games.module.ts
@@ -0,0 +1,18 @@
+import { Module } from '@nestjs/common';
+import { GamesService } from './games.service';
+import { GamesController } from './games.controller';
+import { Game, GameSchema } from './schemas/game.schema';
+import { MongooseModule } from '@nestjs/mongoose';
+import { UsersModule } from 'src/users/users.module';
+import { CardsModule } from 'src/cards/cards.module';
+
+@Module({
+  imports: [
+    CardsModule,
+    UsersModule,
+    MongooseModule.forFeature([{ name: Game.name, schema: GameSchema }]),
+  ],
+  controllers: [GamesController],
+  providers: [GamesService],
+})
+export class GamesModule {}
diff --git a/src/games/games.service.spec.ts b/src/games/games.service.spec.ts
new file mode 100644
index 0000000..c65ca09
--- /dev/null
+++ b/src/games/games.service.spec.ts
@@ -0,0 +1,18 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { GamesService } from './games.service';
+
+describe('GamesService', () => {
+  let service: GamesService;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [GamesService],
+    }).compile();
+
+    service = module.get<GamesService>(GamesService);
+  });
+
+  it('should be defined', () => {
+    expect(service).toBeDefined();
+  });
+});
diff --git a/src/games/games.service.ts b/src/games/games.service.ts
new file mode 100644
index 0000000..258db81
--- /dev/null
+++ b/src/games/games.service.ts
@@ -0,0 +1,31 @@
+import { Injectable } from '@nestjs/common';
+import { CreateGameDto } from './dto/create-game.dto';
+import { UpdateGameDto } from './dto/update-game.dto';
+import { InjectModel } from '@nestjs/mongoose';
+import { Game } from './schemas/game.schema';
+import { Model } from 'mongoose';
+
+@Injectable()
+export class GamesService {
+  constructor(@InjectModel(Game.name) private gameModel: Model<Game>) {}
+  async create(): Promise<Game> {
+    const createdGame = new this.gameModel();
+    return createdGame.save();
+  }
+
+  findAll() {
+    return this.gameModel.find();
+  }
+
+  findOne(id: string) {
+    return this.gameModel.find({ _id: id }).exec();
+  }
+
+  // update(id: number, updateGameDto: UpdateGameDto) {
+  //   return `This action updates a #${id} game`;
+  // }
+
+  remove(id: number) {
+    return `This action removes a #${id} game`;
+  }
+}
diff --git a/src/games/schemas/game.schema.ts b/src/games/schemas/game.schema.ts
new file mode 100644
index 0000000..55ebd13
--- /dev/null
+++ b/src/games/schemas/game.schema.ts
@@ -0,0 +1,51 @@
+import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
+import mongoose, { HydratedDocument } from 'mongoose';
+import { Card } from 'src/cards/schemas/cards.schema';
+import { User } from 'src/users/schemas/user.entity';
+
+export type GameDocument = HydratedDocument<Game>;
+
+@Schema()
+class GameObject {}
+
+@Schema()
+export class Team extends GameObject {}
+
+export const TeamSchema = SchemaFactory.createForClass(Team);
+
+@Schema()
+export class Container extends GameObject {
+  @Prop([{ type: mongoose.Schema.Types.ObjectId, ref: 'User' }])
+  cards: Card[];
+}
+
+export const ContainerSchema = SchemaFactory.createForClass(Container);
+
+@Schema()
+export class Game extends GameObject {
+  @Prop([Team])
+  teams: Team[];
+
+  @Prop({ type: ContainerSchema, default: {} })
+  market: Container;
+
+  @Prop({ type: ContainerSchema, default: {} })
+  marketStack: Container;
+
+  @Prop({ type: ContainerSchema, default: {} })
+  fireGems: Container;
+
+  @Prop({ type: mongoose.Schema.Types.ObjectId, ref: 'Game.teams' })
+  currentTurn?: Team;
+
+  @Prop({ default: false })
+  started: boolean;
+
+  @Prop({ default: false })
+  private ended: boolean;
+
+  @Prop({ type: mongoose.Schema.Types.ObjectId, ref: 'User' })
+  owner: User;
+}
+
+export const GameSchema = SchemaFactory.createForClass(Game);
diff --git a/src/main.ts b/src/main.ts
index 13cad38..a00ad84 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,8 +1,28 @@
 import { NestFactory } from '@nestjs/core';
+import * as session from 'express-session';
 import { AppModule } from './app.module';
+import { SwaggerModule, DocumentBuilder } from '@nestjs/swagger';
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
-  await app.listen(3000);
+
+  const config = new DocumentBuilder()
+    .setTitle('Heron Game')
+    .setDescription('Heron')
+    .setVersion('1.0')
+    .build();
+  const document = SwaggerModule.createDocument(app, config);
+  SwaggerModule.setup('api', app, document);
+
+  app.use(
+    session({
+      secret: 'my-secret',
+      resave: false,
+      saveUninitialized: false,
+      name: 'heron.session',
+    }),
+  );
+
+  await app.listen(8765);
 }
 bootstrap();
diff --git a/src/users/dto/create-user.dto.ts b/src/users/dto/create-user.dto.ts
new file mode 100644
index 0000000..be5dbc9
--- /dev/null
+++ b/src/users/dto/create-user.dto.ts
@@ -0,0 +1,5 @@
+export class CreateUserDto {
+  method: 'discord' | 'password';
+  username?: string;
+  password: string;
+}
diff --git a/src/users/dto/login.dto.ts b/src/users/dto/login.dto.ts
new file mode 100644
index 0000000..05978df
--- /dev/null
+++ b/src/users/dto/login.dto.ts
@@ -0,0 +1,20 @@
+import { PartialType } from '@nestjs/mapped-types';
+import { CreateUserDto } from './create-user.dto';
+import { ApiProperty } from '@nestjs/swagger';
+
+export class LoginDto extends PartialType(CreateUserDto) {
+  constructor(id: string, global_name: string, avatar: string) {
+    super();
+    this.id = id;
+    this.global_name = global_name;
+    this.avatar = avatar;
+  }
+  @ApiProperty()
+  id: string;
+
+  @ApiProperty()
+  global_name: string;
+
+  @ApiProperty()
+  avatar: string;
+}
diff --git a/src/users/schemas/user.entity.ts b/src/users/schemas/user.entity.ts
new file mode 100644
index 0000000..bc55547
--- /dev/null
+++ b/src/users/schemas/user.entity.ts
@@ -0,0 +1,9 @@
+import { Schema, SchemaFactory } from '@nestjs/mongoose';
+import { HydratedDocument } from 'mongoose';
+
+export type UserDocument = HydratedDocument<User>;
+
+@Schema()
+export class User {}
+
+export const UserSchema = SchemaFactory.createForClass(User);
diff --git a/src/users/users.controller.spec.ts b/src/users/users.controller.spec.ts
new file mode 100644
index 0000000..a76d310
--- /dev/null
+++ b/src/users/users.controller.spec.ts
@@ -0,0 +1,20 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { UsersController } from './users.controller';
+import { UsersService } from './users.service';
+
+describe('UsersController', () => {
+  let controller: UsersController;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      controllers: [UsersController],
+      providers: [UsersService],
+    }).compile();
+
+    controller = module.get<UsersController>(UsersController);
+  });
+
+  it('should be defined', () => {
+    expect(controller).toBeDefined();
+  });
+});
diff --git a/src/users/users.controller.ts b/src/users/users.controller.ts
new file mode 100644
index 0000000..bd45aff
--- /dev/null
+++ b/src/users/users.controller.ts
@@ -0,0 +1,46 @@
+import {
+  Controller,
+  Get,
+  Query,
+  Session,
+  HttpException,
+  HttpStatus,
+} from '@nestjs/common';
+import { UsersService } from './users.service';
+import { LoginDto } from './dto/login.dto';
+import { ApiTags } from '@nestjs/swagger';
+
+@ApiTags('auth')
+@Controller()
+export class UsersController {
+  constructor(private readonly usersService: UsersService) {}
+
+  @Get('/login')
+  async login(
+    @Query('code') code: string,
+    @Session() session: Record<string, any>,
+  ) {
+    const tokenData = await this.usersService.saveDiscordToken(code);
+    session.tokenData = tokenData;
+    const user = await this.usersService.useDiscordToken(
+      tokenData.token_type,
+      tokenData.token,
+    );
+    return user;
+  }
+
+  @Get('/whoami')
+  async remove(@Session() session: Record<string, any>): Promise<LoginDto> {
+    if (!session.tokenData) {
+      throw new HttpException(
+        "Session doesn't contains auth information",
+        HttpStatus.UNAUTHORIZED,
+      );
+    }
+    const user = await this.usersService.useDiscordToken(
+      session.tokenData.token_type,
+      session.tokenData.token,
+    );
+    return user;
+  }
+}
diff --git a/src/users/users.module.ts b/src/users/users.module.ts
new file mode 100644
index 0000000..b17801c
--- /dev/null
+++ b/src/users/users.module.ts
@@ -0,0 +1,17 @@
+import { Module } from '@nestjs/common';
+import { UsersService } from './users.service';
+import { UsersController } from './users.controller';
+import { MongooseModule } from '@nestjs/mongoose';
+import { User, UserSchema } from './schemas/user.entity';
+
+@Module({
+  imports: [
+    MongooseModule.forFeature([{ name: User.name, schema: UserSchema }]),
+  ],
+  controllers: [UsersController],
+  providers: [UsersService],
+  exports: [MongooseModule],
+})
+export class UsersModule {
+  schema = UserSchema;
+}
diff --git a/src/users/users.service.spec.ts b/src/users/users.service.spec.ts
new file mode 100644
index 0000000..62815ba
--- /dev/null
+++ b/src/users/users.service.spec.ts
@@ -0,0 +1,18 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { UsersService } from './users.service';
+
+describe('UsersService', () => {
+  let service: UsersService;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [UsersService],
+    }).compile();
+
+    service = module.get<UsersService>(UsersService);
+  });
+
+  it('should be defined', () => {
+    expect(service).toBeDefined();
+  });
+});
diff --git a/src/users/users.service.ts b/src/users/users.service.ts
new file mode 100644
index 0000000..7539e99
--- /dev/null
+++ b/src/users/users.service.ts
@@ -0,0 +1,63 @@
+import { HttpException, HttpStatus, Injectable } from '@nestjs/common';
+import { LoginDto } from './dto/login.dto';
+import { URLSearchParams } from 'url';
+
+@Injectable()
+export class UsersService {
+  async saveDiscordToken(code: string) {
+    const req = await fetch('https://discord.com/api/oauth2/token', {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/x-www-form-urlencoded',
+      },
+      body: new URLSearchParams({
+        client_id: process.env.DISCORD_CLIENTID,
+        client_secret: process.env.DISCORD_CLIENTSECRET,
+        code: code,
+        grant_type: 'authorization_code',
+        redirect_uri: process.env.API_ENDPOINT + '/login',
+        scope: 'identify',
+      }),
+    });
+    if (!req.ok) {
+      console.error(await req.json());
+      throw new HttpException(
+        "Couldn't fetch Discord api",
+        HttpStatus.INTERNAL_SERVER_ERROR,
+      );
+    }
+    const data = await req.json();
+    if (!data.token_type || !data.access_token) {
+      console.error(data);
+      throw new HttpException(
+        'Invalid Discord API response',
+        HttpStatus.INTERNAL_SERVER_ERROR,
+      );
+    }
+    const token_type = data.token_type;
+    const token = data.access_token;
+
+    return { token, token_type };
+  }
+
+  async useDiscordToken(token_type: string, token: string) {
+    const req2 = await fetch('https://discord.com/api/users/@me', {
+      headers: {
+        authorization: token_type + ' ' + token,
+      },
+    });
+
+    if (!req2.ok) {
+      throw new HttpException(
+        "Couldn't fetch Discord api",
+        HttpStatus.INTERNAL_SERVER_ERROR,
+      );
+    }
+    const data2 = await req2.json();
+    return new LoginDto(data2.id, data2.global_name, data2.avatar);
+  }
+
+  remove(id: number) {
+    return `This action removes a #${id} user`;
+  }
+}