feat: adding request header x-api-version to have package.json version

src/routes/index.js

@@ -11,6 +11,7 @@ import scheduler from '../tasks';
 import { V1Router } from './v1';
 import { sequelize } from '../database';
 import { getConfig } from '../utils/config-loader';
+import { fileLoader } from '../utils/file-loader';
 import { logger } from '../config/logger.cjs';
 import {
   assertChiaNetworkMatchInConfiguration,
@@ -67,6 +68,14 @@ app.use(function (req, res, next) {
   next();
 });
 
+app.use(function (req, res, next) {
+  const packageJson = fileLoader('package.json');
+  logger.debug(`Setting header x-api-verion to package.json version: ${packageJson.version}`);
+  res.setHeader('x-api-version', packageJson.version);
+
+  next();
+});
+
 app.use('/v1', V1Router);
 
 sequelize.authenticate().then(async () => {

src/utils/file-loader.js

@@ -0,0 +1,18 @@
+import _ from 'lodash';
+import yaml from 'js-yaml';
+import fs from 'fs';
+import path from 'path';
+
+import { logger } from '../config/logger.cjs';
+
+export const fileLoader = _.memoize((filepath) => {
+  logger.debug(`Reading file at ${filepath}`);
+
+  const file = path.resolve(filepath);
+
+  try {
+    return yaml.load(fs.readFileSync(file, 'utf8'));
+  } catch (e) {
+    logger.error(`File not found at ${file}`, e);
+  }
+});