feat: implement comprehensive health check endpoints for API, Auth, and Realtime services to monitor database, Redis, MinIO, and InfluxDB connectivity.

api/src/index.js

@@ -16,10 +16,19 @@ app.get('/', (req, res) => {
     res.redirect('/health');
 });
 
-app.get('/health', (req, res) => {
+app.get('/health', async (req, res) => {
+    const postgres = await require('./storage/postgres').checkPostgres();
+    const influx = await require('./storage/influx').checkInflux();
+    const minio = await require('./storage/minio').checkMinio();
+
+    const allOk = Object.values(postgres).every(s => s === 'connected') && influx && minio;
+
     res.json({ 
-        status: "ok",
+        status: allOk ? "ok" : "degraded",
         service: "api",
+        databases: postgres,
+        influx: influx ? 'connected' : 'disconnected',
+        minio: minio ? 'connected' : 'disconnected',
         version: version,
         build_number: vBuild,
         version_state: vState

api/src/storage/influx.js

@@ -59,9 +59,19 @@ async function query(bucket, relativeTime, measurement, sensor, field) {
 
 }
 
+async function checkInflux() {
+    try {
+        await querying.rows(`from(bucket: "boat") |> range(start: -1s) |> limit(n:1)`).next();
+        return true;
+    } catch (error) {
+        return false;
+    }
+}
+
 module.exports = {
     write:append,
     writeBatch,
-    query
+    query,
+    checkInflux
 }
 

api/src/storage/minio.js

@@ -123,6 +123,15 @@ async function getFileStream(bucket, objectName) {
     return dataStream;
 }
 
+async function checkMinio() {
+    try {
+        await client.listBuckets();
+        return true;
+    } catch (error) {
+        return false;
+    }
+}
+
 module.exports = {
     bucketExists,
     getBuckets,
@@ -132,5 +141,6 @@ module.exports = {
     removeObject,
     upload,
     download,
-    getFileStream
+    getFileStream,
+    checkMinio
 }

api/src/storage/postgres.js

@@ -70,10 +70,24 @@ async function remove(table, condition, params, type = 'users') {
     const sql = `DELETE FROM ${table} WHERE ${condition}`;
     return await query(sql, params, type);
 }
+
+async function checkPostgres() {
+    const status = {};
+    for (const [name, pool] of Object.entries(pools)) {
+        try {
+            await pool.query('SELECT NOW()');
+            status[name] = 'connected';
+        } catch (error) {
+            status[name] = 'disconnected';
+        }
+    }
+    return status;
+}
 module.exports = {
     query,
     append,
     remove,
     getClient,
+    checkPostgres,
     pools
 };