* clear

* feat: Add everything

* fix: Commenht
This commit is contained in:
Prad Nukala
2025-10-03 14:45:52 -04:00
committed by GitHub
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---
title: "DWN Plugin Architecture"
description: "Deep dive into the Decentralized Web Node (DWN) plugin system and integration"
sidebarTitle: "WASM Architecture"
icon: "puzzle"
---
# DWN Plugin Architecture
The Sonr project implements a flexible and secure plugin system for Decentralized Web Nodes (DWN), enabling modular and extensible functionality.
## Overview
The plugin architecture is designed to:
- Support dynamic loading of WebAssembly (WASM) plugins
- Provide a standardized interface for plugin interactions
- Enable secure, isolated execution of plugins
## Core Components
### Plugin Manager
The `PluginManager` manages plugin lifecycle and interactions:
```go
type PluginManager struct {
plugins map[string]Plugin
actors map[string]Actor
}
type Plugin interface {
Initialize(config map[string]any) error
Execute(method string, payload []byte) ([]byte, error)
Close() error
}
```
### Plugin Configuration
Plugins are configured through a structured configuration:
```go
type PluginConfig struct {
ID string // Unique plugin identifier
Type string // Plugin type (e.g., "motor", "crypto")
Path string // WASM module path
Environment map[string]any // Plugin-specific environment variables
}
```
## Loading and Initializing Plugins
### Basic Plugin Loading
```go
func (pm *PluginManager) LoadPlugin(config PluginConfig) error {
// Load WASM module
module, err := extism.Load(config.Path)
if err != nil {
return err
}
// Initialize plugin
plugin := &WASMPlugin{
module: module,
config: config,
}
// Store in plugin registry
pm.plugins[config.ID] = plugin
}
```
### Actor-Based Plugin Management
```go
func (pm *PluginManager) CreateActor(pluginID string) (*Actor, error) {
plugin, exists := pm.plugins[pluginID]
if !exists {
return nil, errors.New("plugin not found")
}
actor := NewActor(plugin)
pm.actors[actor.ID] = actor
return actor, nil
}
```
## Plugin Execution Workflow
1. Plugin is loaded from WASM module
2. Configuration is applied
3. Plugin is initialized
4. Specific methods can be invoked through a standardized interface
### Example Plugin Execution
```go
func ExecutePluginMethod(pluginID, method string, payload []byte) ([]byte, error) {
plugin := pluginManager.plugins[pluginID]
return plugin.Execute(method, payload)
}
```
## Configuration and Environment
### Plugin Environment Variables
```json
{
"motor_plugin": {
"enclave_config": { ... },
"chain_id": "sonr-testnet-1",
"log_level": "debug"
}
}
```
## Error Handling and Logging
```go
type PluginError struct {
Code string
Message string
Details map[string]any
}
```
## Security Considerations
- WASM plugins run in an isolated sandbox
- Limited access to system resources
- Runtime restrictions prevent malicious behavior
- Cryptographic verification of plugin modules
## Plugin Types
1. **Crypto Plugins**: Cryptographic operations
2. **Motor Plugins**: MPC and token management
3. **DID Plugins**: Decentralized Identity operations
4. **Custom Plugins**: Application-specific extensions
## Best Practices
- Keep plugins small and focused
- Use standardized interfaces
- Implement comprehensive error handling
- Validate all plugin inputs
- Monitor plugin performance
## Advanced Configuration
For advanced plugin configuration and deployment, refer to the [PDK Configuration Guide](/blockchain/modules/dwn/configuration).