Code Explainers

Code explainers tagged #multi-tenancy

python 
import time
import uuid
 
from django.utils.deprecation import MiddlewareMixin

Attaching per-request context in Django

middleware request lifecycle multi-tenancy
Intermediate 7 steps
typescript 
import { Injectable, Scope, Inject, NotFoundException } from '@nestjs/common';
import { REQUEST } from '@nestjs/core';
import { Request } from 'express';
import { DataSource } from 'typeorm';

Per-tenant database connections in NestJS

multi-tenancy connection-pooling dependency-injection
Advanced 8 steps
python 
from fastapi import Depends, FastAPI, Header, HTTPException, status
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
 

Chaining tenant dependencies in FastAPI

dependency injection multi-tenancy authentication
Intermediate 7 steps
go 
package middleware
 
import (
	"context"

Per-tenant daily rate limiting in Gin

rate-limiting middleware redis
Intermediate 8 steps
java 
@RestController
@RequestMapping("/api/reports")
public class ReportController {
 

Header-driven endpoints in a Spring controller

rest api request headers dependency injection
Intermediate 7 steps
rust 
use axum::{
    extract::{FromRequestParts, Host},
    http::{request::Parts, StatusCode},
};

Multi-tenant DB routing in Axum extractors

multi-tenancy extractors connection-pooling
Advanced 8 steps
java 
@Component
@Order(Ordered.HIGHEST_PRECEDENCE)
public class TenantResolutionFilter extends OncePerRequestFilter {
 

How a tenant-resolution filter works in Spring

multi-tenancy servlet-filter thread-local
Intermediate 8 steps
php 
<?php
 
namespace App\Providers;
 

Subdomain multi-tenancy routing in Laravel

multi-tenancy service-container route-binding
Advanced 7 steps
php 
<?php
 
namespace App\Http\Middleware;
 

Resolving the current team in Laravel middleware

middleware multi-tenancy cookies
Intermediate 8 steps
php 
<?php
 
namespace App\Services;
 

Caching per-tenant settings in Laravel

caching multi-tenancy dependency-injection
Intermediate 7 steps
go 
package theme
 
import (
	"fmt"

Per-tenant HTML templates with Gin's renderer

multi-tenancy concurrency html-templates
Advanced 8 steps
java 
@Entity
@Table(name = "invoices")
@FilterDef(name = "tenantFilter", parameters = @ParamDef(name = "tenantId", type = String.class))
@Filter(name = "tenantFilter", condition = "tenant_id = :tenantId")

Multi-tenant row filtering with Hibernate in Spring

multi-tenancy hibernate filters request interceptor
Advanced 7 steps
rust 
use std::sync::Arc;
use axum::{
    body::Body,
    extract::{Extension, State},

Passing per-request context through Axum middleware

middleware request-context dependency-injection
Intermediate 8 steps
php 
<?php
 
namespace App\Services;
 

Caching tenant dashboard metrics in Laravel

caching multi-tenancy aggregation
Intermediate 7 steps
php 
<?php
 
namespace App\Models\Scopes;
 

How a tenant global scope works in Laravel

multi-tenancy global-scope query-builder
Intermediate 5 steps
typescript 
import {
  CACHE_MANAGER,
  CacheInterceptor,
} from '@nestjs/cache-manager';

A tenant-aware HTTP cache in NestJS

caching interceptors multi-tenancy
Intermediate 7 steps