first version of a cloud storage read node

firebase-config.html

@@ -5,6 +5,7 @@
       name: {value:"", required:true},
       cred: {value:"", required:true},
       dburl: {value:"", required:true},
+      bucket: {value:"", required: false}
     },
     label: function() {
       return this.name;
@@ -25,4 +26,8 @@
         <label for="node-config-input-dburl"><i class="icon-bookmark"></i> Firebase Database URL</label>
         <input type="text" id="node-config-input-dburl">
     </div>
+    <div class="form-row">
+        <label for="node-config-input-bucket"><i class="icon-bookmark"></i> Default Cloud Storage Bucket (optional)</label>
+        <input type="text" id="node-config-input-bucket">
+    </div>
 </script>

firebase-config.js

@@ -1,25 +1,42 @@
 const _admin = require('firebase-admin')
+const {Storage} = require('@google-cloud/storage');
+
+
 let init = false
+let s
 
 module.exports = function(RED) {
   function FirebaseConfigNode(n) {
     RED.nodes.createNode(this,n);
+    //------------------------------
     this.cred = n.cred
     this.dburl = n.dburl
-    this.sturl = n.sturl
+    this.bucket = n.bucket
+    //------------------------------
     this.admin = _admin
+    this.storage = s
     if(!init){
       console.log('setting admin....')
-      init = true
       this.credentials = JSON.parse(this.cred);
-      this.dburl = this.dburl
+      let credobj = _admin.credential.cert(this.credentials)
-      this.sturl = this.sturl
+      //console.dir(credobj)
+      //process.env.GOOGLE_APPLICATION_CREDENTIALS = 'creds.json'
+      init = true
+
       console.log('*** parsed firebase credentials: '+this.credentials.type+', project-id: '+this.credentials.project_id)
       _admin.initializeApp({
-        credential: _admin.credential.cert(this.credentials),
+        credential: credobj,
-        databaseURL: this.dburl,
+        databaseURL: this.dburl
-        storageBucket: this.sturl
       });
+      console.log('setting storage....')
+
+      s = new Storage({
+        //projectId: 'something-2e584',
+        //email: 'firebase-adminsdk-d1xiy@something-2e584.iam.gserviceaccount.com',
+        credentials: this.credentials
+      })
+
+      //s = new Storage()
     }
   }
   RED.nodes.registerType("firebase-config", FirebaseConfigNode);

package.json

@@ -1,6 +1,6 @@
 {
   "name": "node-red-contrib-firebase-admin",
-  "version": "1.0.5",
+  "version": "1.0.6",
   "description": "A node-red module that wraps the server-side  admin SDK of firebase, firestore, et.c.",
   "main": "index.js",
   "scripts": {
@@ -31,10 +31,12 @@
       "firestore-query": "firestore-query.js",
       "firebase-config": "firebase-config.js",
       "flow-to-rtdb": "flow-to-rtdb.js",
-      "rtdb-to-flow": "rtdb-to-flow.js"
+      "rtdb-to-flow": "rtdb-to-flow.js",
+      "storage-read": "storage-read.js"
     }
   },
   "dependencies": {
+    "@google-cloud/storage": "^3.0.2",
     "@node-red/runtime": "^0.20.6",
     "firebase-admin": "^8.0.0"
   }

storage-read.html

@@ -0,0 +1,43 @@
+<script type="text/javascript">
+  RED.nodes.registerType('storage-read',{
+
+    category: 'firebase-admin',
+    color: '#a6bbcf',
+    defaults: {
+      name: {value:""},
+      path: {value:""},
+      bucket: {value:""},
+      cred: {value: "", type: 'firebase-config'}
+    },
+    inputs:1,
+    outputs:1,
+    icon: "firebase-admin-icon.png",
+    label: function() {
+      return this.name||"storage-read";
+    }
+
+  });
+
+</script>
+
+<script type="text/x-red" data-template-name="storage-read">
+  <div class="form-row">
+  <label for="node-input-bucket"><i class="icon-tag"></i> Bucket Name</label>
+<input type="text" id="node-input-bucket" placeholder="Bucket Name">
+  </div>
+
+  <div class="form-row">
+  <label for="node-input-path"><i class="icon-tag"></i> Path</label>
+<input type="text" id="node-input-path" placeholder="Path">
+  </div>
+
+  <div class="form-row">
+  <label for="node-input-cred"><i class="icon-tag"></i> Credentials</label>
+<input type="text" id="node-input-cred" placeholder="Name">
+  </div>
+
+  </script>
+
+  <script type="text/x-red" data-help-name="storage-read">
+  <p>A node that read files from bucket path in google cloud storage</p>
+</script>

storage-read.js

@@ -0,0 +1,58 @@
+
+
+let oldpath
+
+module.exports = function(RED) {
+
+  function FirebaseAdmin(config) {
+    RED.nodes.createNode(this, config);
+    var node = this;
+
+
+    if(config.cred){
+      let c = RED.nodes.getNode(config.cred)
+      this.admin = c.admin
+      this.storage = c.storage
+      this.bucket = config.bucket || c.bucket
+      this.path = config.path
+    }
+
+    console.log('------------------------------- rtdg-get config')
+    console.dir(config)
+
+    //console.log('configuring storage-read to listen for messages')
+    node.on('input', function(msg) {
+      if(msg && msg.payload){
+        let path = msg.payload.path || this.path
+        let bucket = msg.payload.bucket || this.bucket
+        console.log('storage-read reading from bucket "'+bucket+'" path "'+path+'"')
+
+        this.storage.getBuckets().then((results)=>{
+          const [buckets] = results;
+
+          console.log('Buckets:');
+          buckets.forEach(bucket => {
+            console.log(bucket.name);
+          });
+
+
+          this.storage
+          .bucket(bucket)
+          .file(path).download().then((file)=>{
+            console.log('storage-read got file')
+            //console.dir(file)
+            node.send({payload:file})
+
+          })
+
+
+        })
+
+
+      }
+    }.bind(this));
+
+
+  }
+  RED.nodes.registerType("storage-read", FirebaseAdmin);
+}