initial commit

src/core/server/config.ts

@@ -0,0 +1,75 @@
+import Joi from 'joi';
+import convict from 'convict';
+import dotenv from 'dotenv';
+
+// Apply all the configuration provided in the .env file if it isn't already in
+// the environment.
+dotenv.config();
+
+// Add custom format for the mongo uri scheme.
+convict.addFormat({
+  name: 'mongo-uri',
+  validate: (url: string) => {
+    Joi.assert(
+      url,
+      Joi.string().uri({
+        scheme: ['mongodb'],
+      })
+    );
+  },
+});
+
+// Add custom format for the redis uri scheme.
+convict.addFormat({
+  name: 'redis-uri',
+  validate: (url: string) => {
+    Joi.assert(
+      url,
+      Joi.string().uri({
+        scheme: ['redis'],
+      })
+    );
+  },
+});
+
+export const config = convict({
+  env: {
+    doc: 'The application environment.',
+    format: ['production', 'development', 'test'],
+    default: 'development',
+    env: 'NODE_ENV',
+  },
+  port: {
+    doc: 'The port to bind.',
+    format: 'port',
+    default: 3000,
+    env: 'PORT',
+    arg: 'port',
+  },
+  mongodb: {
+    doc: 'The MongoDB database to connect to.',
+    format: 'mongo-uri',
+    default: 'mongodb://localhost/talk',
+    env: 'MONGODB',
+    arg: 'mongodb',
+  },
+  redis: {
+    doc: 'The Redis database to connect to.',
+    format: 'redis-uri',
+    default: 'redis://localhost:6379',
+    env: 'REDIS',
+    arg: 'redis',
+  },
+  secret: {
+    doc: 'The secret used to sign and verify JWTs',
+    format: '*',
+    default: null,
+    env: 'SECRET',
+    arg: 'secret',
+  },
+});
+
+export type Config = typeof config;
+
+// Setup the base configuration.
+export default config;