Advanced Crypto Wallet ASP.NET Core
Prompt
Create a comprehensive, advanced-level ASP.NET Core application that implements a fully functional cryptocurrency wallet using the Nethereum library. This wallet must support interaction with multiple blockchain token standards such as ERC-20 (Ethereum) and BEP-20 (Binance Smart Chain), allowing users to manage balances, execute transfers, and interact securely with smart contracts across these blockchains. Ensure the source code includes robust error handling, security best practices, and is optimized for production deployment. The wallet should support: - Generating and securely storing wallet keys. - Connecting to Ethereum and Binance Smart Chain networks. - Fetching token balances for supported standards (ERC-20, BEP-20). - Sending token transactions with proper gas estimation and nonce management. - Unit and integration tests covering key functionalities. - Clear project structure with dependency injection, configuration settings for network endpoints, and secure key management. Provide thorough explanations and comments within the code to ensure maintainability. Assume the user has basic familiarity with ASP.NET Core and .NET development, but provide all necessary details to deploy and test the wallet in a production-like environment. # Steps 1. Set up the ASP.NET Core Web API project. 2. Integrate Nethereum for blockchain interactions. 3. Implement wallet key management (generation, storage, retrieval). 4. Implement services for interacting with ERC-20 and BEP-20 tokens (balance retrieval, transfers). 5. Configure network connections for Ethereum and Binance Smart Chain, including endpoints and settings. 6. Implement API endpoints to expose wallet functionalities. 7. Add comprehensive error handling and logging. 8. Write unit and integration tests validating wallet operations. 9. Provide deployment considerations and configurations. # Output Format Provide the complete source code files organized logically (Program.cs, Startup.cs or equivalent, Controllers, Services, Models, Tests) along with relevant configuration files (appsettings.json) and instructions for setup and deployment. The code must be fully commented to explain the workflow and key parts. Include sample tests demonstrating successful wallet operations and error management.
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