chore: refactor passing openai api key

package.json

@@ -3,7 +3,7 @@
   "version": "1.0.0",
   "description": "White-label AI chat service ready to be embedded on your site",
   "scripts": {
-    "test": "OPENAI_API_KEY=dummy jest",
+    "test": "jest",
     "prepare": "husky install",
     "lint": "eslint .",
     "pretty": "prettier --check --ignore-unknown .",

src/api.test.ts

@@ -2,7 +2,7 @@ import api from './api';
 
 describe('api', () => {
   it('responds with hello, world!', async () => {
-    const server = api({ title: 'my awesome service' });
+    const server = api({ title: 'my awesome service', openAiApiKey: 'dummy' });
     const response = await server.inject({
       method: 'GET',
       url: '/api'

src/api.ts

@@ -7,7 +7,6 @@ import { Static, Type } from '@sinclair/typebox';
 import { FastifyPluginCallback } from 'fastify';
 import apiService from './api_service';
 
-const openAiApiKey = process.env.OPENAI_API_KEY as string;
 const HelloWorld = Type.String({
   description: 'The magical words!'
 });
@@ -40,6 +39,7 @@ const healthcheck: FastifyPluginCallback<HealthcheckOptions> = (
 
 export interface ApiOptions {
   title: string;
+  openAiApiKey: string;
 }
 
 export default (opts: ApiOptions) => {
@@ -69,7 +69,7 @@ export default (opts: ApiOptions) => {
 
   api.register(apiService, {
     prefix: '/api/v1',
-    openAiApiKey: openAiApiKey as string
+    openAiApiKey: opts.openAiApiKey
   });
 
   return api;

src/server.ts

@@ -2,7 +2,14 @@ import fastifyStatic from '@fastify/static';
 import path from 'path';
 import api from './api';
 
-const server = api({ title: 'White Label AI chat service' });
+const OPENAI_API_KEY = process.env.OPENAI_API_KEY;
+if (!OPENAI_API_KEY) {
+  throw new Error('OPENAI_API_KEY is required');
+}
+const server = api({
+  title: 'White Label AI chat service',
+  openAiApiKey: OPENAI_API_KEY
+});
 
 server.register(fastifyStatic, {
   root: path.join(__dirname, '../out'),