Crate product_os_service_handler 

Product OS Service Handler

A FeathersJS-compatible service handler that provides CRUD operations for database tables through a REST API interface compatible with FeathersJS clients.

Overview

This crate implements the FeathersJS service pattern, allowing seamless integration between Rust backends and FeathersJS clients. It provides:

• find: Query multiple records with pagination, filtering, and sorting
• get: Retrieve a single record by ID
• create: Insert new records into the database
• patch: Partially update existing records
• remove: Delete records from the database
• update: Full record replacement (not yet implemented)

FeathersJS Compatibility

The service handler implements the standard FeathersJS query syntax including:

• Query operators: $limit, $skip, $sort, $select
• Comparison operators: $lt, $lte, $gt, $gte, $ne, $in, $nin
• Logical operators: $or
• Wildcard search with *

Example

use std::sync::Arc;
use parking_lot::Mutex;
use product_os_service_handler::ProductOSServiceHandler;

// Create a service for the "users" table
let service = ProductOSServiceHandler::new(
    "users".to_string(),
    "/api/users".to_string(),
    "users".to_string(),
    "id".to_string(),
    controller
);

// Load the service into a router
let mut router = ProductOSRouter::new();
service.load_service(&mut router).await;

Features

• postgres_store - Enable PostgreSQL database support
• sqlite_store - Enable SQLite database support

Architecture

The handler follows a layered architecture:

1. HTTP Layer: Route handlers process HTTP requests
2. Conversion Layer: Transform between JSON and database formats
3. Database Layer: Execute queries via ProductOSRelationalStore

Structs

ProductOSServiceHandler

Product OS Service Handler

Functions

object_to_query_string

Converts a JSON object back to a query string

query_string_to_object

Converts a query string to a JSON object

query_to_object

Converts a vector of query parameters to a JSON object

Attribute Macros

async_trait