Extensions¶
The extension framework is designed to enhance and improve search capabilities on top of existing functionality provided by the Substrate node.
It allows for the integration of third-party search indices, which can be easily interchanged with other data sources that provide the same functionality, as long as they adhere to standardized naming conventions in the extension registry.
Available extensions¶
| Name | Maintained by | Code |
|---|---|---|
| SubstrateNodeExtension | Polkascan Foundation | Github |
| PolkascanExtension | Polkascan Foundation | Github |
| SubsquidExtension | Polkascan Foundation | Github |
Available extension calls¶
filter_events |
Filters events to match provided search criteria e.g. block range, pallet name, accountID in attributes |
filter_extrinsics |
Filters extrinsics to match provided search criteria e.g. block range, pallet name, signed by accountID |
search_block_number |
Search corresponding block number for provided block_datetime. the prediction tolerance is provided with block_time |
get_block_timestamp |
Return a UNIX timestamp for given block_number. |