Workshop session on using Mercury indexer to query Stellar blockchain data without direct RPC calls. Covers setting up subscriptions, querying ledger entries, parsing XDR data, and practical examples with voting contracts.
This is a technical workshop in Spanish covering Mercury, a Soroban and Stellar Classic indexing service. The session discusses documentation improvements for smart contract setup, explains the difference between events and storage for cost optimization, and demonstrates how to use Mercury's GraphQL API to query blockchain data. Key topics include ledger entries, contract events, XDR parsing, and real-world use cases like Soloswap. The instructors explain why indexers are necessary for historical data and high-volume queries, and discuss Mercury's beta pricing model based on subscription data rather than query count.