W3dr 'link' «2027»

type W3DROptions = strategy: 'failover' ;

Here is the specification and implementation for : A multi-provider failover and load-balancing wrapper. type W3DROptions = strategy: 'failover' ; Here is

type RPCProvider = url: string; name: string; latency?: number; isHealthy: boolean; ; type W3DROptions = strategy: 'failover'

// Return the first one to resolve return Promise.any(promises); if (data.error) throw new Error(data.error.message)

Use a Redis or in-memory LRU cache for eth_call requests. If 1,000 users all ask for the "Token Name" or "Total Supply" in the same block, w3dr answers 999 of them from cache, saving RPC credits.

const data = await response.json(); if (data.error) throw new Error(data.error.message);