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<label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="0">
<span class="md-ellipsis">
Setup
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_3">
<span class="md-nav__icon md-icon"></span>
Setup
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3_1" >
<label class="md-nav__link" for="__nav_3_1" id="__nav_3_1_label" tabindex="0">
<span class="md-ellipsis">
Getting started
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_3_1_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_3_1">
<span class="md-nav__icon md-icon"></span>
Getting started
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../SUBNETS/" class="md-nav__link">
<span class="md-ellipsis">
Subnets
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS/" class="md-nav__link">
<span class="md-ellipsis">
Enable Plugins
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PIHOLE_GUIDE/" class="md-nav__link">
<span class="md-ellipsis">
Pi-hole Guide
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../HOME_ASSISTANT/" class="md-nav__link">
<span class="md-ellipsis">
Home Assistant
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SMTP/" class="md-nav__link">
<span class="md-ellipsis">
Emails
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../BACKUPS/" class="md-nav__link">
<span class="md-ellipsis">
Backups
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SECURITY_FEATURES/" class="md-nav__link">
<span class="md-ellipsis">
Security Features
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SECURITY/" class="md-nav__link">
<span class="md-ellipsis">
Security Considerations
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3_2" >
<label class="md-nav__link" for="__nav_3_2" id="__nav_3_2_label" tabindex="0">
<span class="md-ellipsis">
Advanced guides
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_3_2_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_3_2">
<span class="md-nav__icon md-icon"></span>
Advanced guides
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../REMOTE_NETWORKS/" class="md-nav__link">
<span class="md-ellipsis">
Remote Networks
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../NOTIFICATIONS/" class="md-nav__link">
<span class="md-ellipsis">
Notifications Guide
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PUID_PGID_SECURITY/" class="md-nav__link">
<span class="md-ellipsis">
Custom PUID/GUID
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../NAME_RESOLUTION/" class="md-nav__link">
<span class="md-ellipsis">
Name Resolution
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../AUTHELIA/" class="md-nav__link">
<span class="md-ellipsis">
Authelia
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PERFORMANCE/" class="md-nav__link">
<span class="md-ellipsis">
Performance
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../REVERSE_DNS/" class="md-nav__link">
<span class="md-ellipsis">
Reverse DNS
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3_2_8" >
<label class="md-nav__link" for="__nav_3_2_8" id="__nav_3_2_8_label" tabindex="0">
<span class="md-ellipsis">
Reverse Proxy
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="3" aria-labelledby="__nav_3_2_8_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_3_2_8">
<span class="md-nav__icon md-icon"></span>
Reverse Proxy
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../REVERSE_PROXY/" class="md-nav__link">
<span class="md-ellipsis">
Reverse Proxy Overview
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../REVERSE_PROXY_CADDY/" class="md-nav__link">
<span class="md-ellipsis">
Caddy and Authentik
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../REVERSE_PROXY_TRAEFIK/" class="md-nav__link">
<span class="md-ellipsis">
Traefik
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../WEBHOOK_N8N/" class="md-nav__link">
<span class="md-ellipsis">
Webhooks (n8n)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WORKFLOWS/" class="md-nav__link">
<span class="md-ellipsis">
Workflows
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WORKFLOW_EXAMPLES/" class="md-nav__link">
<span class="md-ellipsis">
Workflow Examples
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DOCKER_SWARM/" class="md-nav__link">
<span class="md-ellipsis">
Docker Swarm
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3_3" >
<label class="md-nav__link" for="__nav_3_3" id="__nav_3_3_label" tabindex="0">
<span class="md-ellipsis">
Help
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_3_3_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_3_3">
<span class="md-nav__icon md-icon"></span>
Help
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../COMMON_ISSUES/" class="md-nav__link">
<span class="md-ellipsis">
Common issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../RANDOM_MAC/" class="md-nav__link">
<span class="md-ellipsis">
Random MAC
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../FIX_OFFLINE_DETECTION/" class="md-nav__link">
<span class="md-ellipsis">
Incorrect Offline Detection
</span>
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4" >
<label class="md-nav__link" for="__nav_4" id="__nav_4_label" tabindex="0">
<span class="md-ellipsis">
Device guides
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_4_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_4">
<span class="md-nav__icon md-icon"></span>
Device guides
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4_1" >
<label class="md-nav__link" for="__nav_4_1" id="__nav_4_1_label" tabindex="0">
<span class="md-ellipsis">
Editing Devices
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_4_1_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_4_1">
<span class="md-nav__icon md-icon"></span>
Editing Devices
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../DEVICE_MANAGEMENT/" class="md-nav__link">
<span class="md-ellipsis">
Management
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEVICES_BULK_EDITING/" class="md-nav__link">
<span class="md-ellipsis">
Bulk Editing
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../CUSTOM_PROPERTIES/" class="md-nav__link">
<span class="md-ellipsis">
Custom Properties
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEVICE_DISPLAY_SETTINGS/" class="md-nav__link">
<span class="md-ellipsis">
Device Display Settings
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SESSION_INFO/" class="md-nav__link">
<span class="md-ellipsis">
Session Info
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEVICE_FIELD_LOCK/" class="md-nav__link">
<span class="md-ellipsis">
Field Lock/Unlock
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4_2" >
<label class="md-nav__link" for="__nav_4_2" id="__nav_4_2_label" tabindex="0">
<span class="md-ellipsis">
Icons and Topology
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_4_2_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_4_2">
<span class="md-nav__icon md-icon"></span>
Icons and Topology
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../ICONS/" class="md-nav__link">
<span class="md-ellipsis">
Icons
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../NETWORK_TREE/" class="md-nav__link">
<span class="md-ellipsis">
Network Topology
</span>
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5" >
<label class="md-nav__link" for="__nav_5" id="__nav_5_label" tabindex="0">
<span class="md-ellipsis">
Troubleshooting
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_5_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_5">
<span class="md-nav__icon md-icon"></span>
Troubleshooting
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../DEBUG_TIPS/" class="md-nav__link">
<span class="md-ellipsis">
General Tips
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../COMMON_ISSUES/" class="md-nav__link">
<span class="md-ellipsis">
Common issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../LOGGING/" class="md-nav__link">
<span class="md-ellipsis">
Inspecting Logs
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEBUG_API_SERVER/" class="md-nav__link">
<span class="md-ellipsis">
API Server Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEBUG_INVALID_JSON/" class="md-nav__link">
<span class="md-ellipsis">
Invalid JSON Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEBUG_PHP/" class="md-nav__link">
<span class="md-ellipsis">
PHP Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEBUG_PLUGINS/" class="md-nav__link">
<span class="md-ellipsis">
Plugin Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WEB_UI_PORT_DEBUG/" class="md-nav__link">
<span class="md-ellipsis">
Web UI Port Issues
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../WORKFLOWS_DEBUGGING/" class="md-nav__link">
<span class="md-ellipsis">
Workflows Issues
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6" checked>
<label class="md-nav__link" for="__nav_6" id="__nav_6_label" tabindex="">
<span class="md-ellipsis">
Development
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_6_label" aria-expanded="true">
<label class="md-nav__title" for="__nav_6">
<span class="md-nav__icon md-icon"></span>
Development
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item md-nav__item--section md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6_1" >
<label class="md-nav__link" for="__nav_6_1" id="__nav_6_1_label" tabindex="">
<span class="md-ellipsis">
Plugin and app development
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_6_1_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_6_1">
<span class="md-nav__icon md-icon"></span>
Plugin and app development
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../DEV_ENV_SETUP/" class="md-nav__link">
<span class="md-ellipsis">
Environment Setup
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../BUILDS/" class="md-nav__link">
<span class="md-ellipsis">
Builds
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEV_DEVCONTAINER/" class="md-nav__link">
<span class="md-ellipsis">
Devcontainer
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEV_PORTS_HOST_MODE/" class="md-nav__link">
<span class="md-ellipsis">
Devcontainer Ports
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6_1_5" >
<label class="md-nav__link" for="__nav_6_1_5" id="__nav_6_1_5_label" tabindex="0">
<span class="md-ellipsis">
Custom Plugins
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="3" aria-labelledby="__nav_6_1_5_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_6_1_5">
<span class="md-nav__icon md-icon"></span>
Custom Plugins
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../PLUGINS_DEV/" class="md-nav__link">
<span class="md-ellipsis">
Overview
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV_QUICK_START/" class="md-nav__link">
<span class="md-ellipsis">
Quick Start
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV_DATA_CONTRACT/" class="md-nav__link">
<span class="md-ellipsis">
Data Contract
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV_SETTINGS/" class="md-nav__link">
<span class="md-ellipsis">
Settings System
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV_DATASOURCES/" class="md-nav__link">
<span class="md-ellipsis">
Data Sources
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV_UI_COMPONENTS/" class="md-nav__link">
<span class="md-ellipsis">
UI Components
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../PLUGINS_DEV_CONFIG/" class="md-nav__link">
<span class="md-ellipsis">
Config Lifecycle
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../FRONTEND_DEVELOPMENT/" class="md-nav__link">
<span class="md-ellipsis">
Frontend Development
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DATABASE/" class="md-nav__link">
<span class="md-ellipsis">
Database
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../SETTINGS_SYSTEM/" class="md-nav__link">
<span class="md-ellipsis">
Settings
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../VERSIONS/" class="md-nav__link">
<span class="md-ellipsis">
Versions
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../DEVICE_HEURISTICS/" class="md-nav__link">
<span class="md-ellipsis">
Icon and Type guessing
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6_2" checked>
<label class="md-nav__link" for="__nav_6_2" id="__nav_6_2_label" tabindex="">
<span class="md-ellipsis">
API
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_6_2_label" aria-expanded="true">
<label class="md-nav__title" for="__nav_6_2">
<span class="md-nav__icon md-icon"></span>
API
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../API/" class="md-nav__link">
<span class="md-ellipsis">
Overview
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_DEVICES/" class="md-nav__link">
<span class="md-ellipsis">
Devices Collection
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../API_DEVICE/" class="md-nav__link">
<span class="md-ellipsis">
Device
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--active">
<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
<label class="md-nav__link md-nav__link--active" for="__toc">
<span class="md-ellipsis">
Device Field Lock
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<a href="./" class="md-nav__link md-nav__link--active">
<span class="md-ellipsis">
Device Field Lock
</span>
</a>
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
Table of contents
</label>
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
<li class="md-nav__item">
<a href="#overview" class="md-nav__link">
<span class="md-ellipsis">
Overview
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#concepts" class="md-nav__link">
<span class="md-ellipsis">
Concepts
</span>
</a>
<nav class="md-nav" aria-label="Concepts">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#tracked-fields" class="md-nav__link">
<span class="md-ellipsis">
Tracked Fields
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#field-source-tracking" class="md-nav__link">
<span class="md-ellipsis">
Field Source Tracking
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#locking-mechanism" class="md-nav__link">
<span class="md-ellipsis">
Locking Mechanism
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#endpoints" class="md-nav__link">
<span class="md-ellipsis">
Endpoints
</span>
</a>
<nav class="md-nav" aria-label="Endpoints">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#lock-or-unlock-a-field" class="md-nav__link">
<span class="md-ellipsis">
Lock or Unlock a Field
</span>
</a>
<nav class="md-nav" aria-label="Lock or Unlock a Field">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#parameters" class="md-nav__link">
<span class="md-ellipsis">
Parameters
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#responses" class="md-nav__link">
<span class="md-ellipsis">
Responses
</span>
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#examples" class="md-nav__link">
<span class="md-ellipsis">
Examples
</span>
</a>
<nav class="md-nav" aria-label="Examples">
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<h1 id="device-field-lockunlock-api">Device Field Lock/Unlock API</h1>
<h2 id="overview">Overview</h2>
<p>The Device Field Lock/Unlock feature allows users to lock specific device fields to prevent plugin overwrites. This is part of the authoritative device field update system that ensures data integrity while maintaining flexibility for user customization.</p>
<h2 id="concepts">Concepts</h2>
<h3 id="tracked-fields">Tracked Fields</h3>
<p>Only certain device fields support locking. These are the fields that can be modified by both plugins and users:</p>
<ul>
<li><code>devName</code> - Device name/hostname</li>
<li><code>devVendor</code> - Device vendor/manufacturer</li>
<li><code>devFQDN</code> - Fully qualified domain name</li>
<li><code>devSSID</code> - Network SSID</li>
<li><code>devParentMAC</code> - Parent device MAC address</li>
<li><code>devParentPort</code> - Parent device port</li>
<li><code>devParentRelType</code> - Parent device relationship type</li>
<li><code>devVlan</code> - VLAN identifier</li>
</ul>
<h3 id="field-source-tracking">Field Source Tracking</h3>
<p>Every tracked field has an associated <code>*Source</code> field that indicates where the current value originated:</p>
<ul>
<li><code>NEWDEV</code> - Created via the UI as a new device</li>
<li><code>USER</code> - Manually edited by a user</li>
<li><code>LOCKED</code> - Field is locked; prevents any plugin overwrites</li>
<li>Plugin name (e.g., <code>UNIFIAPI</code>, <code>PIHOLE</code>) - Last updated by this plugin</li>
</ul>
<h3 id="locking-mechanism">Locking Mechanism</h3>
<p>When a field is <strong>locked</strong>, its source is set to <code>LOCKED</code>. This prevents plugin overwrites based on the authorization logic:</p>
<ol>
<li>Plugin wants to update field</li>
<li>Authoritative handler checks field's <code>*Source</code> value</li>
<li>If <code>*Source</code> == <code>LOCKED</code>, plugin update is rejected</li>
<li>User can still manually unlock the field</li>
</ol>
<p>When a field is <strong>unlocked</strong>, its source is set to <code>NEWDEV</code>, allowing plugins to resume updates.</p>
<h2 id="endpoints">Endpoints</h2>
<h3 id="lock-or-unlock-a-field">Lock or Unlock a Field</h3>
<div class="highlight"><pre><span></span><code>POST /device/{mac}/field/lock
Authorization: Bearer {API_TOKEN}
Content-Type: application/json
{
&quot;fieldName&quot;: &quot;devName&quot;,
&quot;lock&quot;: true
}
</code></pre></div>
<h4 id="parameters">Parameters</h4>
<ul>
<li><code>mac</code> (path, required): Device MAC address (e.g., <code>AA:BB:CC:DD:EE:FF</code>)</li>
<li><code>fieldName</code> (body, required): Name of the field to lock/unlock. Must be one of the tracked fields listed above.</li>
<li><code>lock</code> (body, required): Boolean. <code>true</code> to lock, <code>false</code> to unlock.</li>
</ul>
<h4 id="responses">Responses</h4>
<p><strong>Success (200)</strong>
<div class="highlight"><pre><span></span><code><span class="p">{</span>
<span class="w"> </span><span class="nt">&quot;success&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span><span class="p">,</span>
<span class="w"> </span><span class="nt">&quot;message&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;Field devName locked&quot;</span><span class="p">,</span>
<span class="w"> </span><span class="nt">&quot;fieldName&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;devName&quot;</span><span class="p">,</span>
<span class="w"> </span><span class="nt">&quot;locked&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">true</span>
<span class="p">}</span>
</code></pre></div></p>
<p><strong>Bad Request (400)</strong>
<div class="highlight"><pre><span></span><code><span class="p">{</span>
<span class="w"> </span><span class="nt">&quot;success&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span>
<span class="w"> </span><span class="nt">&quot;error&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;fieldName is required&quot;</span>
<span class="p">}</span>
</code></pre></div></p>
<div class="highlight"><pre><span></span><code><span class="p">{</span>
<span class="w"> </span><span class="nt">&quot;success&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span>
<span class="w"> </span><span class="nt">&quot;error&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;Field &#39;devInvalidField&#39; cannot be locked&quot;</span>
<span class="p">}</span>
</code></pre></div>
<p><strong>Unauthorized (403)</strong>
<div class="highlight"><pre><span></span><code><span class="p">{</span>
<span class="w"> </span><span class="nt">&quot;success&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span>
<span class="w"> </span><span class="nt">&quot;error&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;Unauthorized&quot;</span>
<span class="p">}</span>
</code></pre></div></p>
<p><strong>Not Found (404)</strong>
<div class="highlight"><pre><span></span><code><span class="p">{</span>
<span class="w"> </span><span class="nt">&quot;success&quot;</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span>
<span class="w"> </span><span class="nt">&quot;error&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;Device not found&quot;</span>
<span class="p">}</span>
</code></pre></div></p>
<h2 id="examples">Examples</h2>
<h3 id="lock-a-device-name">Lock a Device Name</h3>
<p>Prevent the device name from being overwritten by plugins:</p>
<div class="highlight"><pre><span></span><code>curl<span class="w"> </span>-X<span class="w"> </span>POST<span class="w"> </span>https://your-netalertx.local/api/device/AA:BB:CC:DD:EE:FF/field/lock<span class="w"> </span><span class="se">\</span>
<span class="w"> </span>-H<span class="w"> </span><span class="s2">&quot;Authorization: Bearer your-api-token&quot;</span><span class="w"> </span><span class="se">\</span>
<span class="w"> </span>-H<span class="w"> </span><span class="s2">&quot;Content-Type: application/json&quot;</span><span class="w"> </span><span class="se">\</span>
<span class="w"> </span>-d<span class="w"> </span><span class="s1">&#39;{</span>
<span class="s1"> &quot;fieldName&quot;: &quot;devName&quot;,</span>
<span class="s1"> &quot;lock&quot;: true</span>
<span class="s1"> }&#39;</span>
</code></pre></div>
<h3 id="unlock-a-field">Unlock a Field</h3>
<p>Allow plugins to resume updating a field:</p>
<div class="highlight"><pre><span></span><code>curl<span class="w"> </span>-X<span class="w"> </span>POST<span class="w"> </span>https://your-netalertx.local/api/device/AA:BB:CC:DD:EE:FF/field/lock<span class="w"> </span><span class="se">\</span>
<span class="w"> </span>-H<span class="w"> </span><span class="s2">&quot;Authorization: Bearer your-api-token&quot;</span><span class="w"> </span><span class="se">\</span>
<span class="w"> </span>-H<span class="w"> </span><span class="s2">&quot;Content-Type: application/json&quot;</span><span class="w"> </span><span class="se">\</span>
<span class="w"> </span>-d<span class="w"> </span><span class="s1">&#39;{</span>
<span class="s1"> &quot;fieldName&quot;: &quot;devName&quot;,</span>
<span class="s1"> &quot;lock&quot;: false</span>
<span class="s1"> }&#39;</span>
</code></pre></div>
<h2 id="ui-integration">UI Integration</h2>
<p>The Device Edit form displays lock/unlock buttons for all tracked fields:</p>
<ol>
<li><strong>Lock Button</strong> (🔒): Click to prevent plugin overwrites</li>
<li><strong>Unlock Button</strong> (🔓): Click to allow plugin overwrites again</li>
<li><strong>Source Indicator</strong>: Shows current field source (USER, LOCKED, NEWDEV, or plugin name)</li>
</ol>
<h2 id="ui-workflow">UI Workflow</h2>
<h3 id="locking-a-field-via-ui">Locking a Field via UI</h3>
<ol>
<li>Navigate to Device Details</li>
<li>Find the field you want to protect</li>
<li>Click the lock button (🔒) next to the field</li>
<li>Button changes to unlock (🔓) and source indicator turns red (LOCKED)</li>
<li>Field is now protected from plugin overwrites</li>
</ol>
<h3 id="unlocking-a-field-via-ui">Unlocking a Field via UI</h3>
<ol>
<li>Find the locked field (button shows 🔓)</li>
<li>Click the unlock button</li>
<li>Button changes back to lock (🔒) and source resets to NEWDEV</li>
<li>Plugins can now update this field again</li>
</ol>
<h2 id="authorization">Authorization</h2>
<p>All lock/unlock operations require:
- Valid API token in <code>Authorization: Bearer {token}</code> header
- User must be authenticated to the NetAlertX instance</p>
<h2 id="implementation-details">Implementation Details</h2>
<h3 id="backend-logic">Backend Logic</h3>
<p>The lock/unlock feature is implemented in:
- <strong>API Endpoint</strong>: <code>/server/api_server/api_server_start.py</code> - <code>api_device_field_lock()</code>
- <strong>Data Model</strong>: <code>/server/models/device_instance.py</code> - Authorization checks in <code>setDeviceData()</code>
- <strong>Database</strong>: Devices table with <code>*Source</code> columns tracking field origins</p>
<h3 id="authorization-handler">Authorization Handler</h3>
<p>The authoritative field update logic prevents plugin overwrites:</p>
<ol>
<li>Plugin provides new value for field via plugin config <code>SET_ALWAYS</code>/<code>SET_EMPTY</code></li>
<li>Authoritative handler (in DeviceInstance) checks <code>{field}Source</code> value</li>
<li>If source is <code>LOCKED</code> or <code>USER</code>, plugin update is rejected</li>
<li>If source is <code>NEWDEV</code> or plugin name, plugin update is accepted</li>
</ol>
<h2 id="see-also">See Also</h2>
<ul>
<li><a href="../API_DEVICE/">API Device Endpoints Documentation</a></li>
<li><a href="../PLUGINS_DEV/#authoritative-fields">Authoritative Field Updates System</a></li>
<li><a href="../PLUGINS_DEV_CONFIG/">Plugin Configuration Reference</a></li>
</ul>
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