diff --git a/bin/www b/bin/www
index 4e99ab4..4bb85f2 100755
--- a/bin/www
+++ b/bin/www
@@ -7,6 +7,7 @@
 let app = require("../app");
 let debug = require("debug")("sod:server");
 let http = require("http");
+let models = require("../models");
 
 /**
  * Get port from environment and store in Express.
@@ -25,9 +26,11 @@ let server = http.createServer(app);
  * Listen on provided port, on all network interfaces.
  */
 
-server.listen(port);
-server.on("error", onError);
-server.on("listening", onListening);
+models.sequelize.sync().then(() => {
+  server.listen(port);
+  server.on("error", onError);
+  server.on("listening", onListening);
+});
 
 /**
  * Normalize a port into a number, string, or false.
diff --git a/config/config_exemple.json b/config/config_exemple.json
new file mode 100644
index 0000000..c48bf9a
--- /dev/null
+++ b/config/config_exemple.json
@@ -0,0 +1,7 @@
+{
+  "username": "root",
+  "password": null,
+  "database": "database_development",
+  "host": "127.0.0.1",
+  "dialect": "mysql"
+}
diff --git a/models/command.js b/models/command.js
new file mode 100644
index 0000000..1704123
--- /dev/null
+++ b/models/command.js
@@ -0,0 +1,31 @@
+"use strict";
+const {
+  Model
+} = require("sequelize");
+module.exports = (sequelize, DataTypes) => {
+  class Command extends Model {
+    static associate(models) {
+      Command.belongsToMany(models.Sandwich, {through: "SandwichCommand"});
+      Command.belongsTo(models.Department);
+    }
+  }
+  Command.init({
+    firstName: {
+      type: DataTypes.STRING,
+      allowNull: false
+    },
+    lastName: {
+      type: DataTypes.STRING,
+      allowNull: false
+    },
+    date: {
+      type: DataTypes.DATEONLY,
+      defaultValue: DataTypes.NOW,
+      allowNull: false
+    }
+  }, {
+    sequelize,
+    modelName: "Command",
+  });
+  return Command;
+};
diff --git a/models/department.js b/models/department.js
new file mode 100644
index 0000000..6483b79
--- /dev/null
+++ b/models/department.js
@@ -0,0 +1,22 @@
+"use strict";
+const {
+  Model
+} = require("sequelize");
+module.exports = (sequelize, DataTypes) => {
+  class Department extends Model {
+    static associate(models) {
+      Department.hasMany(models.Command);
+    }
+  }
+  Department.init({
+    name: {
+      type: DataTypes.STRING,
+      unique: true,
+      allowNull: false
+    }
+  }, {
+    sequelize,
+    modelName: "Department",
+  });
+  return Department;
+};
diff --git a/models/index.js b/models/index.js
new file mode 100644
index 0000000..6ff7e14
--- /dev/null
+++ b/models/index.js
@@ -0,0 +1,36 @@
+"use strict";
+
+const fs = require("fs");
+const path = require("path");
+const Sequelize = require("sequelize");
+const basename = path.basename(__filename);
+const config = require(__dirname + "/../config/config.json");
+const db = {};
+
+let sequelize;
+if (config.use_env_variable) {
+  sequelize = new Sequelize(process.env[config.use_env_variable], config);
+} else {
+  sequelize = new Sequelize(config.database, config.username, config.password, config);
+}
+
+fs
+  .readdirSync(__dirname)
+  .filter(file => {
+    return (file.indexOf(".") !== 0) && (file !== basename) && (file.slice(-3) === ".js");
+  })
+  .forEach(file => {
+    const model = require(path.join(__dirname, file))(sequelize, Sequelize.DataTypes);
+    db[model.name] = model;
+  });
+
+Object.keys(db).forEach(modelName => {
+  if (db[modelName].associate) {
+    db[modelName].associate(db);
+  }
+});
+
+db.sequelize = sequelize;
+db.Sequelize = Sequelize;
+
+module.exports = db;
diff --git a/models/sandwich.js b/models/sandwich.js
new file mode 100644
index 0000000..57d5a7d
--- /dev/null
+++ b/models/sandwich.js
@@ -0,0 +1,26 @@
+"use strict";
+const {
+  Model
+} = require("sequelize");
+module.exports = (sequelize, DataTypes) => {
+  class Sandwich extends Model {
+    static associate(models) {
+      Sandwich.belongsToMany(models.Command, {through: "SandwichCommand"});
+    }
+  }
+  Sandwich.init({
+    name: {
+      type: DataTypes.STRING,
+      allowNull: false,
+      unique: true
+    },
+    price: {
+      type: DataTypes.FLOAT,
+      allowNull: false
+    }
+  }, {
+    sequelize,
+    modelName: "Sandwich",
+  });
+  return Sandwich;
+};
diff --git a/package-lock.json b/package-lock.json
index 04e2847..8f15c4e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,6 +17,16 @@
         "@types/babel-types": "*"
       }
     },
+    "@types/node": {
+      "version": "14.0.27",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-14.0.27.tgz",
+      "integrity": "sha512-kVrqXhbclHNHGu9ztnAwSncIgJv/FaxmzXJvGXNdcCpV1b8u1/Mi6z6m0vwy0LzKeXFTPLH0NzwmoJ3fNCIq0g=="
+    },
+    "abbrev": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
+      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q=="
+    },
     "accepts": {
       "version": "1.3.7",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
@@ -61,6 +71,24 @@
       "resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.1.tgz",
       "integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU="
     },
+    "ansi-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
+    },
+    "ansi-styles": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+      "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+      "requires": {
+        "color-convert": "^1.9.0"
+      }
+    },
+    "any-promise": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/any-promise/-/any-promise-1.3.0.tgz",
+      "integrity": "sha1-q8av7tzqUugJzcA3au0845Y10X8="
+    },
     "array-flatten": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
@@ -96,6 +124,11 @@
       "resolved": "https://registry.npmjs.org/babylon/-/babylon-6.18.0.tgz",
       "integrity": "sha512-q/UEjfGJ2Cm3oKV71DJz9d25TPnq5rhBVL2Q4fA5wcC3jcrdn7+SssEybFIxwAvvP+YCsCYNKughoF33GxgycQ=="
     },
+    "balanced-match": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
+    },
     "basic-auth": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/basic-auth/-/basic-auth-2.0.1.tgz",
@@ -104,6 +137,11 @@
         "safe-buffer": "5.1.2"
       }
     },
+    "bluebird": {
+      "version": "3.7.2",
+      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.7.2.tgz",
+      "integrity": "sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg=="
+    },
     "body-parser": {
       "version": "1.18.3",
       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.3.tgz",
@@ -121,6 +159,20 @@
         "type-is": "~1.6.16"
       }
     },
+    "brace-expansion": {
+      "version": "1.1.11",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "requires": {
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
+      }
+    },
+    "buffer-writer": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/buffer-writer/-/buffer-writer-2.0.0.tgz",
+      "integrity": "sha512-a7ZpuTZU1TRtnwyCNW3I5dc0wWNC3VR9S++Ewyk2HHZdrO3CQJqSpd+95Us590V6AL7JqUAH2IwZ/398PmNFgw=="
+    },
     "bytes": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
@@ -157,6 +209,19 @@
         "source-map": "0.4.x"
       }
     },
+    "cli-color": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/cli-color/-/cli-color-1.4.0.tgz",
+      "integrity": "sha512-xu6RvQqqrWEo6MPR1eixqGPywhYBHRs653F9jfXB2Hx4jdM/3WxiNE1vppRmxtMIfl16SFYTpYlrnqH/HsK/2w==",
+      "requires": {
+        "ansi-regex": "^2.1.1",
+        "d": "1",
+        "es5-ext": "^0.10.46",
+        "es6-iterator": "^2.0.3",
+        "memoizee": "^0.4.14",
+        "timers-ext": "^0.1.5"
+      }
+    },
     "cliui": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/cliui/-/cliui-2.1.0.tgz",
@@ -167,6 +232,19 @@
         "wordwrap": "0.0.2"
       }
     },
+    "color-convert": {
+      "version": "1.9.3",
+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
+      "integrity": "sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==",
+      "requires": {
+        "color-name": "1.1.3"
+      }
+    },
+    "color-name": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
+      "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU="
+    },
     "commander": {
       "version": "2.8.1",
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.8.1.tgz",
@@ -175,6 +253,20 @@
         "graceful-readlink": ">= 1.0.0"
       }
     },
+    "concat-map": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
+    },
+    "config-chain": {
+      "version": "1.1.12",
+      "resolved": "https://registry.npmjs.org/config-chain/-/config-chain-1.1.12.tgz",
+      "integrity": "sha512-a1eOIcu8+7lUInge4Rpf/n4Krkf3Dd9lqhljRzII1/Zno/kRtUWnznPO3jOKBmTEktkt3fkxisUcivoj0ebzoA==",
+      "requires": {
+        "ini": "^1.3.4",
+        "proto-list": "~1.2.1"
+      }
+    },
     "constantinople": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/constantinople/-/constantinople-3.1.2.tgz",
@@ -220,6 +312,15 @@
       "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.6.11.tgz",
       "integrity": "sha512-5wjnpaT/3dV+XB4borEsnAYQchn00XSgTAWKDkEqv+K8KevjbzmofK6hfJ9TZIlpj2N0xQpazy7PiRQiWHqzWg=="
     },
+    "d": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/d/-/d-1.0.1.tgz",
+      "integrity": "sha512-m62ShEObQ39CfralilEQRjH6oAMtNCV1xJyEx5LpRYUVN+EviphDgUc/F3hnYbADmkiNs67Y+3ylmlG7Lnu+FA==",
+      "requires": {
+        "es5-ext": "^0.10.50",
+        "type": "^1.0.1"
+      }
+    },
     "debug": {
       "version": "2.6.9",
       "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
@@ -248,16 +349,84 @@
       "resolved": "https://registry.npmjs.org/doctypes/-/doctypes-1.1.0.tgz",
       "integrity": "sha1-6oCxBqh1OHdOijpKWv4pPeSJ4Kk="
     },
+    "dottie": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/dottie/-/dottie-2.0.2.tgz",
+      "integrity": "sha512-fmrwR04lsniq/uSr8yikThDTrM7epXHBAAjH9TbeH3rEA8tdCO7mRzB9hdmdGyJCxF8KERo9CITcm3kGuoyMhg=="
+    },
+    "editorconfig": {
+      "version": "0.15.3",
+      "resolved": "https://registry.npmjs.org/editorconfig/-/editorconfig-0.15.3.tgz",
+      "integrity": "sha512-M9wIMFx96vq0R4F+gRpY3o2exzb8hEj/n9S8unZtHSvYjibBp/iMufSzvmOcV/laG0ZtuTVGtiJggPOSW2r93g==",
+      "requires": {
+        "commander": "^2.19.0",
+        "lru-cache": "^4.1.5",
+        "semver": "^5.6.0",
+        "sigmund": "^1.0.1"
+      },
+      "dependencies": {
+        "commander": {
+          "version": "2.20.3",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+          "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ=="
+        }
+      }
+    },
     "ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
     },
+    "emoji-regex": {
+      "version": "7.0.3",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
+      "integrity": "sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA=="
+    },
     "encodeurl": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
       "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k="
     },
+    "es5-ext": {
+      "version": "0.10.53",
+      "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.53.tgz",
+      "integrity": "sha512-Xs2Stw6NiNHWypzRTY1MtaG/uJlwCk8kH81920ma8mvN8Xq1gsfhZvpkImLQArw8AHnv8MT2I45J3c0R8slE+Q==",
+      "requires": {
+        "es6-iterator": "~2.0.3",
+        "es6-symbol": "~3.1.3",
+        "next-tick": "~1.0.0"
+      }
+    },
+    "es6-iterator": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/es6-iterator/-/es6-iterator-2.0.3.tgz",
+      "integrity": "sha1-p96IkUGgWpSwhUQDstCg+/qY87c=",
+      "requires": {
+        "d": "1",
+        "es5-ext": "^0.10.35",
+        "es6-symbol": "^3.1.1"
+      }
+    },
+    "es6-symbol": {
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/es6-symbol/-/es6-symbol-3.1.3.tgz",
+      "integrity": "sha512-NJ6Yn3FuDinBaBRWl/q5X/s4koRHBrgKAu+yGI6JCBeiu3qrcbJhwT2GeR/EXVfylRk8dpQVJoLEFhK+Mu31NA==",
+      "requires": {
+        "d": "^1.0.1",
+        "ext": "^1.1.2"
+      }
+    },
+    "es6-weak-map": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/es6-weak-map/-/es6-weak-map-2.0.3.tgz",
+      "integrity": "sha512-p5um32HOTO1kP+w7PRnB+5lQ43Z6muuMuIMffvDN8ZB4GcnjLBV6zGStpbASIMk4DCAvEaamhe2zhyCb/QXXsA==",
+      "requires": {
+        "d": "1",
+        "es5-ext": "^0.10.46",
+        "es6-iterator": "^2.0.3",
+        "es6-symbol": "^3.1.1"
+      }
+    },
     "escape-html": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
@@ -273,6 +442,15 @@
       "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
       "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc="
     },
+    "event-emitter": {
+      "version": "0.3.5",
+      "resolved": "https://registry.npmjs.org/event-emitter/-/event-emitter-0.3.5.tgz",
+      "integrity": "sha1-34xp7vFkeSPHFXuc6DhAYQsCzDk=",
+      "requires": {
+        "d": "1",
+        "es5-ext": "~0.10.14"
+      }
+    },
     "express": {
       "version": "4.16.4",
       "resolved": "https://registry.npmjs.org/express/-/express-4.16.4.tgz",
@@ -317,6 +495,21 @@
         }
       }
     },
+    "ext": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/ext/-/ext-1.4.0.tgz",
+      "integrity": "sha512-Key5NIsUxdqKg3vIsdw9dSuXpPCQ297y6wBjL30edxwPgt2E44WcWBZey/ZvUc6sERLTxKdyCu4gZFmUbk1Q7A==",
+      "requires": {
+        "type": "^2.0.0"
+      },
+      "dependencies": {
+        "type": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/type/-/type-2.0.0.tgz",
+          "integrity": "sha512-KBt58xCHry4Cejnc2ISQAF7QY+ORngsWfxezO68+12hKV6lQY8P/psIkcbjeHWn7MqcgciWJyCCevFMJdIXpow=="
+        }
+      }
+    },
     "finalhandler": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz",
@@ -331,6 +524,14 @@
         "unpipe": "~1.0.0"
       }
     },
+    "find-up": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+      "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+      "requires": {
+        "locate-path": "^3.0.0"
+      }
+    },
     "forwarded": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.1.2.tgz",
@@ -341,6 +542,44 @@
       "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz",
       "integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac="
     },
+    "fs-extra": {
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-7.0.1.tgz",
+      "integrity": "sha512-YJDaCJZEnBmcbw13fvdAM9AwNOJwOzrE4pqMqBq5nFiEqXUqHwlK4B+3pUw6JNvfSPtX05xFHtYy/1ni01eGCw==",
+      "requires": {
+        "graceful-fs": "^4.1.2",
+        "jsonfile": "^4.0.0",
+        "universalify": "^0.1.0"
+      }
+    },
+    "fs.realpath": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
+    },
+    "get-caller-file": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
+      "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg=="
+    },
+    "glob": {
+      "version": "7.1.6",
+      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
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@@ -747,6 +1300,94 @@
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+        "lodash": "^4.17.5",
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@@ -758,11 +1399,21 @@
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@@ -771,11 +1422,58 @@
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+      "resolved": "https://registry.npmjs.org/split/-/split-1.0.1.tgz",
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       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.4.0.tgz",
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+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
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+        "is-fullwidth-code-point": "^2.0.0",
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+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
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+      "resolved": "https://registry.npmjs.org/timers-ext/-/timers-ext-0.1.7.tgz",
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+        "next-tick": "1"
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@@ -786,6 +1484,16 @@
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       "integrity": "sha1-zu78cXp2xDFvEm0LnbqlXX598Bo="
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+    "toposort-class": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/toposort-class/-/toposort-class-1.0.1.tgz",
+      "integrity": "sha1-f/0feMi+KMO6Rc1OGj9e4ZO9mYg="
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+      "resolved": "https://registry.npmjs.org/type/-/type-1.2.0.tgz",
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@@ -818,6 +1526,24 @@
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+      "resolved": "https://registry.npmjs.org/umzug/-/umzug-2.3.0.tgz",
+      "integrity": "sha512-Z274K+e8goZK8QJxmbRPhl89HPO1K+ORFtm6rySPhFKfKc5GHhqdzD0SGhSWHkzoXasqJuItdhorSvY7/Cgflw==",
+      "requires": {
+        "bluebird": "^3.7.2"
+      }
+    },
+    "underscore": {
+      "version": "1.10.2",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.10.2.tgz",
+      "integrity": "sha512-N4P+Q/BuyuEKFJ43B9gYuOj4TQUHXX+j2FqguVOpjkssLUUrnJofCcBccJSCoeturDoZU6GorDTHSvUDlSQbTg=="
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+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
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       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
@@ -828,6 +1554,16 @@
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+    "uuid": {
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.0.tgz",
+      "integrity": "sha512-fX6Z5o4m6XsXBdli9g7DtWgAx+osMsRRZFKma1mIUsLCz6vRvv+pz5VNbyu9UEDzpMWulZfvpgb/cmDXVulYFQ=="
+    },
+    "validator": {
+      "version": "10.11.0",
+      "resolved": "https://registry.npmjs.org/validator/-/validator-10.11.0.tgz",
+      "integrity": "sha512-X/p3UZerAIsbBfN/IwahhYaBbY68EN/UQBWHtsbXGT5bfrH/p4NQzUCG1kF/rtKaNpnJ7jAu6NGTdSNtyNIXMw=="
+    },
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@@ -838,6 +1574,11 @@
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       "integrity": "sha1-wGavtYK7HLQSjWDqkjkulNXp2+w="
     },
+    "which-module": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
+      "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho="
+    },
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       "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz",
@@ -852,11 +1593,49 @@
         "acorn-globals": "^3.0.0"
       }
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+    "wkx": {
+      "version": "0.5.0",
+      "resolved": "https://registry.npmjs.org/wkx/-/wkx-0.5.0.tgz",
+      "integrity": "sha512-Xng/d4Ichh8uN4l0FToV/258EjMGU9MGcA0HV2d9B/ZpZB3lqQm7nkOdZdm5GhKtLLhAE7PiVQwN4eN+2YJJUg==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "wordwrap": {
       "version": "0.0.2",
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz",
       "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8="
     },
+    "wrap-ansi": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz",
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+      "requires": {
+        "ansi-styles": "^3.2.0",
+        "string-width": "^3.0.0",
+        "strip-ansi": "^5.0.0"
+      }
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+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+    },
+    "xtend": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
+    },
+    "y18n": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
+      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w=="
+    },
+    "yallist": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI="
+    },
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       "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
@@ -867,6 +1646,22 @@
         "decamelize": "^1.0.0",
         "window-size": "0.1.0"
       }
+    },
+    "yargs-parser": {
+      "version": "13.1.2",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
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+      "requires": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
+      },
+      "dependencies": {
+        "camelcase": {
+          "version": "5.3.1",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
+          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg=="
+        }
+      }
     }
   }
 }
diff --git a/package.json b/package.json
index 21d64cb..43813fc 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,10 @@
     "express": "~4.16.1",
     "http-errors": "~1.6.3",
     "morgan": "~1.9.1",
-    "pug": "2.0.0-beta11"
+    "pg": "^8.3.0",
+    "pg-hstore": "^2.3.3",
+    "pug": "2.0.0-beta11",
+    "sequelize": "^6.3.4",
+    "sequelize-cli": "^6.2.0"
   }
 }