Initial example

examples/json_search/index.js

@@ -0,0 +1,67 @@
+import { createClient, SchemaFieldTypes} from 'redis';
+
+const client = createClient();
+
+await client.connect();
+
+// Create an index.
+// https://redis.io/commands/ft.create/
+try {
+  await client.ft.create('idx:users', {
+    '$.name': {
+      type: SchemaFieldTypes.TEXT,
+      SORTABLE: 'UNF'
+    },
+    '$.age': {
+      type: SchemaFieldTypes.NUMERIC,
+      AS: 'age'
+    },
+    '$.coins': {
+      type: SchemaFieldTypes.NUMERIC,
+      AS: 'coins'
+    },
+    '$.email': {
+      type: SchemaFieldTypes.TAG,
+      AS: 'email'
+    }
+  }, {
+    ON: 'JSON',
+    PREFIX: 'noderedis:users'
+  });
+} catch (e) {
+  if (e.message === 'Index already exists') {
+    console.log('Index exists already, skipped creation.');
+  } else {
+    // Something went wrong, perhaps RediSearch isn't installed...
+    console.error(e);
+    process.exit(1);
+  }
+}
+
+// Add some users.
+// https://redis.io/commands/json.set/
+await Promise.all([
+  client.json.set('noderedis:users:1', '$', {
+    name: 'Alice',
+    age: 32,
+    coins: 100,
+    email: 'alice@nonexist.com'
+  }),
+  client.json.set('noderedis:users:2', '$', {
+    name: 'Bob',
+    age: 23,
+    coins: 15,
+    email: 'bob@somewhere.gov'
+  })
+]);
+
+// Search all users under 30
+console.log('Users under 30 years old:');
+console.log(
+  // https://redis.io/commands/ft.search/
+  JSON.stringify(
+    await client.ft.search('idx:users', '@age:[0 30]'),
+    null,
+    2
+  )
+);