Polygon
Polygon
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El plan gratuito cubre proyectos personales. El pago por uso escala sin necesidad de tarjeta.
Polygon
El plan gratuito cubre proyectos personales. El pago por uso escala sin necesidad de tarjeta.
eth_newBlockFilter creates a server-side filter that watches for new block arrivals and returns a hex filter ID. You then poll that ID with eth_getFilterChanges to receive the hashes of blocks added since your last poll. On Polygon — the MATIC-fueled PoS chain at https://polygon.therpc.io/YOUR_API_KEY (chain ID 137, 0x89) — blocks are produced roughly every two seconds, so a steady polling loop is a lightweight way to keep an HTTP client in step with the chain head without holding a WebSocket connection open.
0xc2132D05D31c914a87C6611C10748AEb04B58e8F) never lag more than one block behind.Este método no acepta parámetros. Pasa un array vacío [].
| Tipo | Descripción |
|---|---|
| string | Hex filter ID. When polled with eth_getFilterChanges, yields an array of new block hashes since the last poll. |
Try it live in the Polygon playground.
| Código | Mensaje | Causa |
|---|---|---|
-32000 | filter not found | Provider rejected filter creation or the filter limit was reached. |
eth_getFilterChanges yields only block hashes — fetch the full block with eth_getBlockByHash when you need transactions or header fields.filter not found error.finalized tag rather than acting irreversibly on a freshly seen block hash.