added template support for filter expression

node-red-grist/records.html

@@ -1,5 +1,6 @@
 <script type="text/javascript">
     RED.nodes.registerType('grist-records', {
+        name: "Get records",
         category: 'grist',
         color: '#00bb00',
         defaults: {
@@ -12,12 +13,12 @@
         outputs: 1,
         icon: "font-awesome/fa-table",
         label: function () {
-            return this.tableId || "records";
+            return this.tableId || "Get records";
         },
         oneditprepare: function () {
             $("#node-input-filter").typedInput({
                 type: "json",
-                types:["json"]
+                types: ["json", "str"]
             })
         }
     });
@@ -47,5 +48,16 @@
 </script>
 
 <script type="text/html" data-help-name="grist-records">
-    <p>Retrieves records from a grist table</p>
+    <p>Retrieves records from a grist table.</p>
+    <h3>Inputs</h3>
+    <p>
+        The input message object is available for the <code>filter</code> property via mustache template syntax.
+    </p>
+    <h3>Outputs</h3>
+    <p>
+        Array of grist rows (records).
+    </p>
+    <h3>Attributes</h3>
+    <p>
+        <code>filter</code> JSON object with filter definition. Supports mustache syntax for templates.</p>
 </script>

node-red-grist/records.js

@@ -1,5 +1,5 @@
 const { GristDocAPI } = require('grist-api');
-
+const mustache = require('mustache');
 module.exports = function (RED) {
     function RecordsNode(config) {
         RED.nodes.createNode(this, config);
@@ -12,7 +12,8 @@ module.exports = function(RED) {
         node.on('input', async function (msg, send, done) {
             const protocol = this.server.tlsEnabled === true ? "https" : "http";
             const url = protocol + "://" + this.server.hostname + ":" + this.server.port;
-            const filter=this.filter && this.filter !== "" ? JSON.parse(this.filter) : undefined
+            const filter = this.filter && this.filter !== "" ? JSON.parse(mustache.render(this.filter, { msg })) : undefined
+            node.log(`filter evaluated to: ${JSON.stringify(filter)}`)
             const api = new GristDocAPI(this.document.docid, { apiKey: this.server.apiKey, server: url });
             api.fetchTable(this.table, filter).then(data => {
                 node.send({ payload: data, topic: this.table })

package.json

@@ -28,6 +28,7 @@
     "node": ">=14.0.0"
   },
   "dependencies": {
-    "grist-api": "^0.1.7"
+    "grist-api": "^0.1.7",
+    "mustache": "^4.2.0"
   }
 }

yarn.lock

@@ -10,6 +10,7 @@ __metadata:
   resolution: "@gorootde/node-red-grist@workspace:."
   dependencies:
     grist-api: ^0.1.7
+    mustache: ^4.2.0
   languageName: unknown
   linkType: soft
 
@@ -35,12 +36,12 @@ __metadata:
   linkType: hard
 
 "follow-redirects@npm:^1.14.0":
-  version: 1.15.2
-  resolution: "follow-redirects@npm:1.15.2"
+  version: 1.15.3
+  resolution: "follow-redirects@npm:1.15.3"
   peerDependenciesMeta:
     debug:
       optional: true
-  checksum: faa66059b66358ba65c234c2f2a37fcec029dc22775f35d9ad6abac56003268baf41e55f9ee645957b32c7d9f62baf1f0b906e68267276f54ec4b4c597c2b190
+  checksum: 584da22ec5420c837bd096559ebfb8fe69d82512d5585004e36a3b4a6ef6d5905780e0c74508c7b72f907d1fa2b7bd339e613859e9c304d0dc96af2027fd0231
   languageName: node
   linkType: hard
 
@@ -56,9 +57,9 @@ __metadata:
   linkType: hard
 
 "graceful-fs@npm:^4.1.6, graceful-fs@npm:^4.2.0":
-  version: 4.2.10
-  resolution: "graceful-fs@npm:4.2.10"
-  checksum: 3f109d70ae123951905d85032ebeae3c2a5a7a997430df00ea30df0e3a6c60cf6689b109654d6fdacd28810a053348c4d14642da1d075049e6be1ba5216218da
+  version: 4.2.11
+  resolution: "graceful-fs@npm:4.2.11"
+  checksum: ac85f94da92d8eb6b7f5a8b20ce65e43d66761c55ce85ac96df6865308390da45a8d3f0296dd3a663de65d30ba497bd46c696cc1e248c72b13d6d567138a4fc7
   languageName: node
   linkType: hard
 
@@ -100,6 +101,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"mustache@npm:^4.2.0":
+  version: 4.2.0
+  resolution: "mustache@npm:4.2.0"
+  bin:
+    mustache: bin/mustache
+  checksum: 928fcb63e3aa44a562bfe9b59ba202cccbe40a46da50be6f0dd831b495be1dd7e38ca4657f0ecab2c1a89dc7bccba0885eab7ee7c1b215830da765758c7e0506
+  languageName: node
+  linkType: hard
+
 "universalify@npm:^0.1.0":
   version: 0.1.2
   resolution: "universalify@npm:0.1.2"