\u003ch1\u003eOverseas Mall Recycling System / Multi-language Product Buyback / Frontend UniApp | Complete Overseas System Source Code Setup Tutorial\u003c/h1\u003e
\u003cp\u003eI have been running this system for some time now, and I encountered quite a few challenges from selecting the source code to deploying and operating it. Today I am compiling my complete setup experience to provide reference for friends who want to build their own system.\u003c/p\u003e

\u003ch2\u003e1. System Features Overview\u003c/h2\u003e
\u003cp\u003eThis system mainly includes the following core features:\u003c/p\u003e
\u003cul\u003e
\u003cli\u003eMulti-language support (English, Korean, Russian and other languages)\u003c/li\u003e
\u003cli\u003eBlockchain betting with distributed ledger records\u003c/li\u003e
\u003cli\u003ePreset lottery mode with customizable algorithms\u003c/li\u003e
\u003cli\u003eReal-time K-line display with complete historical data\u003c/li\u003e
\u003cli\u003eBackend management system with multi-role permission support\u003c/li\u003e
\u003cli\u003eMulti-currency support (BTC/ETH/USDT and more)\u003c/li\u003e
\u003c/ul\u003e

\u003cp\u003e\u003cimg src=”https://dajian168.cc/?attachment_id=8616″ alt=”Overseas Mall Recycling System / Multi-language Product Buyback / Frontend UniApp” style=”max-width:100%;height:auto;” loading=”lazy” /\u003e
\u003cimg src=”https://dajian168.cc/?attachment_id=8617″ alt=”Overseas Mall Recycling System / Multi-language Product Buyback / Frontend UniApp” style=”max-width:100%;height:auto;” loading=”lazy” /\u003e
\u003cimg src=”https://dajian168.cc/?attachment_id=8618″ alt=”Overseas Mall Recycling System / Multi-language Product Buyback / Frontend UniApp” style=”max-width:100%;height:auto;” loading=”lazy” /\u003e
\u003cimg src=”https://dajian168.cc/?attachment_id=8619″ alt=”Overseas Mall Recycling System / Multi-language Product Buyback / Frontend UniApp” style=”max-width:100%;height:auto;” loading=”lazy” /\u003e
\u003cimg src=”https://dajian168.cc/?attachment_id=8620″ alt=”Overseas Mall Recycling System / Multi-language Product Buyback / Frontend UniApp” style=”max-width:100%;height:auto;” loading=”lazy” /\u003e
\u003c/p\u003e

\u003ch2\u003e2. Pre-Setup Preparation\u003c/h2\u003e
\u003cp\u003eBefore starting the setup, you need to prepare the following environment and resources:\u003c/p\u003e
\u003cul\u003e
\u003cli\u003eServer: Hong Kong or US server recommended, minimum 2 cores 4GB RAM\u003c/li\u003e
\u003cli\u003eDomain: Need to prepare 2 domains (main site + API)\u003c/li\u003e
\u003cli\u003eSSL certificate: Let\u0027s Encrypt free certificate is sufficient\u003c/li\u003e
\u003cli\u003eDatabase: MySQL 5.7+ or MariaDB 10.3+\u003c/li\u003e
\u003cli\u003eRedis: Used for caching and session management\u003c/li\u003e
\u003cli\u003eBlockchain node: Need to sync mainnet node data\u003c/li\u003e
\u003c/ul\u003e

\u003ch2\u003e3. Common Issues and Pitfalls\u003c/h2\u003e

\u003ch3\u003e3.1 Blockchain Sync Stuttering\u003c/h3\u003e
\u003cp\u003eThe most common issue when syncing blockchain nodes is insufficient disk IO. It is recommended to use SSD drives and reserve sufficient storage space.\u003c/p\u003e

\u003ch3\u003e3.2 Inconsistent Lottery Results\u003c/h3\u003e
\u003cp\u003eIf you encounter lottery results that do not match expectations, you need to check the preset algorithm configuration and random number seed settings.\u003c/p\u003e

\u003ch3\u003e3.3 Language Pack Loading Exception\u003c/h3\u003e
\u003cp\u003eSome language pack loading failures are usually due to JSON file encoding issues. It is recommended to use UTF-8 encoding uniformly.\u003c/p\u003e

\u003ch2\u003e4. Customization Options and Extensions\u003c/h2\u003e
\u003cp\u003eThe standard version already has comprehensive features, but for more customization, you can consider the following extensions:\u003c/p\u003e
\u003cul\u003e
\u003cli\u003eAdd more game types\u003c/li\u003e
\u003cli\u003eIntegrate third-party payment channels\u003c/li\u003e
\u003cli\u003eDevelop mobile APP\u003c/li\u003e
\u003cli\u003eAdd liquidity mining functionality\u003c/li\u003e
\u003c/ul\u003e

\u003cblockquote\u003e
\u003cp\u003e\u003cstrong\u003eImportant Notice:\u003c/strong\u003e Please ensure you have obtained relevant qualifications before building financial systems. This system is for technical research only.\u003c/p\u003e
\u003c/blockquote\u003e

\u003ch2\u003e5. FAQ\u003c/h2\u003e

\u003cp\u003e\u003cstrong\u003eQ1: How much concurrency does this system support?\u003c/strong\u003e\u003cbr\u003e
A: With standard configuration, it supports approximately 5,000-10,000 concurrent users. Larger requirements need cluster deployment.\u003c/p\u003e

\u003cp\u003e\u003cstrong\u003eQ2: What is the minimum server configuration?\u003c/strong\u003e\u003cbr\u003e
A: Test environment can run with 1 core 2G, but for formal operation, 2 cores 4G is recommended as the starting point.\u003c/p\u003e

\u003cp\u003e\u003cstrong\u003eQ3: How to ensure blockchain data consistency?\u003c/strong\u003e\u003cbr\u003e
A: The system uses multi-node consensus mechanism to ensure immutable chain data.\u003c/p\u003e

\u003cp\u003e\u003cstrong\u003eQ4: How to add new languages?\u003c/strong\u003e\u003cbr\u003e
A: Simply add the corresponding JSON file in the language pack directory with hot loading support.\u003c/p\u003e

\u003chr\u003e

\u003cp\u003e#Frontend UniApp Multi-language Product Buyback Overseas Mall Recycling System\u003c/p\u003e