How to Build a High-Throughput Solana Data Pipeline Without Breaking the Budget

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Tracking real-time swap activity across Solana DEXes like Raydium, Orca, and Jupiter is too fast for conventional Web2 architecture, making purpose-built pipelines necessary. A proposed three-part engineering series outlines a zero-data-loss swap indexer using Rust for ingestion, NATS as a message broker, and ClickHouse for analytics. Cloud cost control is highlighted as a critical challenge, with Helius RPC's Professional Plan at $999 per month for 200 million credits cited as the industry benchmark for such workloads. By filtering WebSocket subscriptions intelligently, estimated daily credit consumption stays between 5 and 8 million, keeping monthly usage within plan limits. The architecture decouples ingestion speed from database write speed, ensuring that downstream failures do not cause data loss at the collection layer.

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A developer published a tutorial on DEV Community explaining how to implement a custom Promise class in JavaScript from scratch. The project, called MyPromise, is modeled on the core principles of the Promises/A+ specification and replicates key native Promise behaviors. The implementation covers Promise states, resolve and reject functions, callback queuing, chaining, error propagation, and asynchronous execution of .then() handlers. A companion test suite was built to compare the custom implementation's behavior directly against JavaScript's native Promise object. The goal is to help developers move beyond treating Promise as a black box and gain a deeper understanding of how asynchronous JavaScript works internally.

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

Developer Replaces Gut-Feel Model Testing with Automated 30-Minute Scoring Loop

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ProgrammingDEV Community ·

Developer launches MCP server for precise financial math in AI agents

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