Initial commit of autocomplete page

Author: dwdougherty

content/develop/interact/search-and-query/advanced-concepts/autocomplete.md

@@ -0,0 +1,109 @@
+---
+categories:
+- docs
+- develop
+- stack
+- oss
+- rs
+- rc
+- oss
+- kubernetes
+- clients
+description: Learn how to use the autocomplete feature of Redis for efficient prefix-based search and suggestions.
+linkTitle: Autocomplete
+title: Autocomplete with Redis
+weight: 1
+---
+
+## Overview
+
+Redis Query Engine provides an autocomplete feature using suggestions that are stored in a trie-based data structure.
+This feature allows you to store and retrieve ranked suggestions based on user input prefixes, making it useful for applications like search boxes, command completion, and chatbot responses.
+
+This guide covers how to use the [`FT.SUGADD`]({{< baseurl >}}/commands/ft.sugadd), [`FT.SUGGET`]({{< baseurl >}}/commands/ft.sugget), [`FT.SUGDEL`]({{< baseurl >}}/commands/ft.sugdel), and [`FT.SUGLEN`]({{< baseurl >}}/commands/ft.suglen) commands to implement autocomplete, and some examples of how you can use suggestions with [`FT.SEARCH`]({{< baseurl >}}/commands/ft.search).
+
+## Add autocomplete suggestions
+
+To add phrases or words–suggestions–to an autocomplete dictionary, use [`FT.SUGADD`]({{< baseurl >}}/commands/ft.sugadd). You will assign a score to each entry, which determines its ranking in the results (higher scores rank first).
+
+```
+FT.SUGADD autocomplete "hello world" 100
+FT.SUGADD autocomplete "hello there" 90
+FT.SUGADD autocomplete "help me" 80
+FT.SUGADD autocomplete "hero" 70
+```
+
+The use of "autocomplete" in the above examples is just the name of the key. You can use any key name you wish.
+
+## Retrieve suggestions
+
+To get autocomplete suggestions for a given prefix, use [`FT.SUGGET`]({{< baseurl >}}/commands/ft.sugget):
+
+```
+redis> FT.SUGGET autocomplete "he"
+1) "hero"
+2) "help me"
+3) "hello world"
+4) "hello there"
+```
+
+If you wish to see the scores, use the `WITHSCORES` option:
+
+```
+redis> FT.SUGGET autocomplete "he" WITHSCORES
+1) "hero"
+2) "40.414520263671875"
+3) "help me"
+4) "32.65986251831055"
+5) "hello world"
+6) "31.62277603149414"
+7) "hello there"
+8) "28.460498809814453"
+```
+
+The displayed scores will differ from what you used when you added the suggestions. This is because scores are normalized internally.
+
+### Enabling Fuzzy Matching
+
+If you want to allow small spelling mistakes or typos, use the `FUZZY` option:
+
+```sh
+FT.SUGGET autocomplete "hr" FUZZY
+```
+
+**Response:**
+```sh
+1) "hero"
+```
+
+## Deleting a Suggestion
+
+To remove a specific suggestion from the dictionary:
+
+```sh
+FT.SUGDEL autocomplete "hero"
+```
+
+After deletion, running `FT.SUGGET autocomplete "he"` will no longer return "hero."
+
+## Checking the Number of Suggestions
+
+To count the number of entries in the autocomplete dictionary:
+
+```sh
+FT.SUGLEN autocomplete
+```
+
+## Use Cases
+
+The autocomplete feature in Redis Query Engine is useful for:
+
+- **Search box suggestions**: Providing live suggestions as users type.
+- **Command completion**: Offering auto-completion for CLI tools.
+- **Product search**: Suggesting product names in e-commerce applications.
+- **Chatbot responses**: Recommending common phrases dynamically.
+
+## Summary
+
+The autocomplete feature of Redis Query Engine provides a fast and efficient way to implement prefix-based suggestions using a trie-based data structure. By using `FT.SUGADD`, `FT.SUGGET`, `FT.SUGDEL`, and `FT.SUGLEN`, you can build dynamic and ranked suggestion lists tailored to your application's needs.
+