added on nodes for rtdb and firestore andmade nodes pass through msg objects with as little changes as possible

firestore/firestore-add.html

@@ -47,4 +47,10 @@
 
 <script type="text/x-red" data-help-name="firestore-add">
     <p>A node that wraps the firestore-add SDK</p>
+    Adds the new object under the collection the path describes and assigns it a random id
+<p>
+input: {"payload": {"path": "foo/bar"}, {"some": object, "foo": 17}}
+<p>
+output: The id of the new document
+
 </script>

firestore/firestore-get.html

@@ -53,4 +53,9 @@
 
 <script type="text/x-red" data-help-name="firestore-get">
     <p>A node that wraps the firestore-get SDK</p>
+    Get data from a document path in the firestore database
+<p>
+input: {"payload": {"path": "foo/bar"}}
+<p>
+output: <the document at the path "foo/bar" in the firestore database>
 </script>

firestore/firestore-get.js

@@ -1,5 +1,5 @@
 
-
+let msgin
 let unsub
 
 module.exports = function(RED) {
@@ -16,7 +16,7 @@ module.exports = function(RED) {
       if(unsub){
         unsub()
       }
-      this.admin.firestore().doc(path).onSnapshot(cb)
+      this.admin.firestore().doc(path).get().then(cb)
     }
 
     const cb = (res)=>{
@@ -24,11 +24,17 @@ module.exports = function(RED) {
       console.dir(res)
       let val = res.data()
       console.log('val='+val)
-      node.send({payload:val})
+      if(msgin){
+        msgin.payload = val
+        node.send(msgin)
+      } else {
+        node.send({payload: val})
+      }
     }
 
     node.on('input', function(msg) {
       if(msg && msg.payload){
+        msgin = msg
         const path = msg.payload.path
         setup(path)
 

firestore/firestore-on.html

@@ -0,0 +1,61 @@
+<script type="text/javascript">
+  RED.nodes.registerType('firestore-on',{
+
+    category: 'firebase-admin',
+    color: '#a6bbcf',
+    defaults: {
+      name: {value:""},
+      path: {value:""},
+      cred: {value: "", type: 'firebase-config'}
+    },
+    inputs:1,
+    outputs:1,
+    icon: "firebase-admin-icon.png",
+    label: function() {
+      return this.name||"firestore-on";
+    },
+
+    oneditsave: function() {
+      let type = $('#apitype-select').val()
+      console.log('type is set to '+type)
+
+    },
+
+    oneditprepare: function() {
+      $('#apitype-select').change(function () {
+        $("#node-input-apitype").val($(this).find('option:selected').val())
+      });
+      $("#apitype-select").val($("#node-input-apitype").val())
+      $('#apitype-select').trigger('change');
+    }
+  });
+
+
+</script>
+
+<script type="text/x-red" data-template-name="firestore-on">
+    <div class="form-row">
+        <label for="node-input-name"><i class="icon-tag"></i> Name</label>
+        <input type="text" id="node-input-name" placeholder="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="Credentials">
+    </div>
+
+</script>
+
+<script type="text/x-red" data-help-name="firestore-on">
+    <p>A node that wraps the firestore-on SDK</p>
+    Get data from a document path in the firestore database
+<p>
+input: {"payload": {"path": "foo/bar"}}
+<p>
+output: <the document at the path "foo/bar" in the firestore database>
+</script>

firestore/firestore-on.js

@@ -0,0 +1,51 @@
+
+let msgin
+let unsub
+
+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
+    }
+
+    const setup = ()=>{
+      if(unsub){
+        unsub()
+      }
+      this.admin.firestore().doc(path).onSnapshot(cb)
+    }
+
+    const cb = (res)=>{
+      console.log('firestore get result '+res)
+      console.dir(res)
+      let val = res.data()
+      console.log('val='+val)
+      if(msgin){
+        msgin.payload = val
+        node.send(msgin)
+      } else {
+        node.send({payload: val})
+      }
+    }
+
+    node.on('input', function(msg) {
+      if(msg && msg.payload){
+        msgin = msg
+        const path = msg.payload.path
+        setup(path)
+
+      }
+    }.bind(this));
+
+    if(config.path){
+      setup(config.path)
+    }
+
+
+  }
+  RED.nodes.registerType("firestore-on", FirebaseAdmin);
+}

firestore/firestore-query.html

@@ -47,4 +47,25 @@
 
 <script type="text/x-red" data-help-name="firestore-query">
     <p>A node that wraps the firestore-query SDK</p>
+    Set up a reactive query for a collection in the firestore database.
+<p>
+input:
+<p>
+    {
+        "payload": {
+            "path": "foo/bar",
+            "queries":[],
+            "limit": 7,
+            "startAt": 4000,  // follows the orderBy property
+            "endAt": 4050, // follows the orderBy property
+            "orderBy": "shoeSize",
+            "orderDirection": "asc", //default is "desc"
+            "queries":[
+                {"company", "==", "ACME"},
+                {"createdAt", ">", 1560099394242}
+            ]
+        }
+<p>
+output: An array of the results of the query.
+
 </script>

firestore/firestore-query.js

@@ -1,4 +1,4 @@
-
+let msgin
 let unsub
 
 module.exports = function(RED) {
@@ -16,13 +16,15 @@ module.exports = function(RED) {
       console.dir(res)
       let val = res.docs.map((d)=>{return d.data()})
       console.log('val='+val)
-      node.send({payload:val})
+      msgin.payload = val
+      node.send(msgin)
     }
 
     node.on('input', function(msg) {
       console.log('firestore-query got input')
       console.dir(msg.payload)
       if(msg && msg.payload){
+        msgin = msg
         const path = msg.payload.path
         if(unsub){
           unsub()

firestore/firestore-set.html

@@ -47,4 +47,7 @@
 
 <script type="text/x-red" data-help-name="firestore-set">
     <p>A node that wraps the firestore-set SDK</p>
+    Set data at a path in the firestore database. Uses "onSnapshot" so will fire every time the data at the path changes and so drive flow execution from that point.
+<p>
+input: {"payload": {"path": "foo/bar"}, {"some": object, "foo": 17}}
 </script>