chore: Setup objectionjs as ORM

packages/backend/knexfile.ts

@@ -0,0 +1,20 @@
+import appConfig from './src/config/app';
+
+const knexConfig = {
+  client: 'pg',
+  connection: {
+    host: appConfig.postgresHost,
+    port: appConfig.postgresPort,
+    user: appConfig.postgresUsername,
+    password: appConfig.postgresPassword,
+    database: appConfig.postgresDatabase,
+  },
+  migrations: {
+    directory: __dirname + '/db/migrations',
+  },
+  seeds: {
+    directory: __dirname + '/db/seeds',
+  }
+}
+
+export default knexConfig;

packages/backend/package.json

@@ -8,6 +8,7 @@
     "start": "node dist/index.js",
     "test": "echo \"Error: run tests from root\" && exit 1",
     "db:create": "ts-node ./bin/database/create.ts",
+    "db:migration:create": "knex migrate:make",
     "db:drop": "ts-node ./bin/database/drop.ts"
   },
   "dependencies": {
@@ -17,7 +18,9 @@
     "express": "~4.16.1",
     "express-graphql": "^0.12.0",
     "http-errors": "~1.6.3",
+    "knex": "^0.95.11",
     "morgan": "^1.10.0",
+    "objection": "^2.2.17",
     "pg": "^8.7.1",
     "winston": "^3.3.3"
   },

packages/backend/src/app.ts

@@ -7,10 +7,14 @@ import graphQLInstance from './helpers/graphql-instance';
 import logger from './helpers/logger';
 import morgan from './helpers/morgan';
 import errorHandler from './helpers/error-handler'
+import { Model } from 'objection';
 
 const app = express();
 const port = appConfig.port;
 
+import knex from './config/database';
+Model.knex(knex)
+
 app.use(morgan);
 app.use(express.json());
 app.use(express.urlencoded({ extended: false }));

packages/backend/src/config/database.ts

@@ -0,0 +1,6 @@
+import knexInstance from 'knex';
+import knexConfig from '../../knexfile';
+
+const knex = knexInstance(knexConfig)
+
+export default knex;