Extensions
Extension
¶
Base class of all extensions
init(substrate: SubstrateInterface)
¶
Initialization process of the extension. This function is being called by the ExtensionRegistry.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
substrate |
SubstrateInterface
|
required |
close()
¶
Cleanup process of the extension. This function is being called by the ExtensionRegistry.
debug_message(message: str)
¶
Submits a debug message in the logger
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
message |
str
|
required |
SearchExtension
¶
Bases: Extension
Type of Extension that implements functionality to improve and enhance search capability
filter_events(**kwargs) -> list
¶
Filters events to match provided search criteria e.g. block range, pallet name, accountID in attributes
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
kwargs |
{}
|
Returns:
| Type | Description |
|---|---|
list
|
filter_extrinsics(**kwargs) -> list
¶
Filters extrinsics to match provided search criteria e.g. block range, pallet name, signed by accountID
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
kwargs |
{}
|
search_block_number(block_datetime: datetime, block_time: int = 6, **kwargs) -> int
¶
Search corresponding block number for provided block_datetime. the prediction tolerance is provided with
block_time
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
block_datetime |
datetime
|
required | |
block_time |
int
|
6
|
|
kwargs |
{}
|
Returns:
| Type | Description |
|---|---|
int
|
get_block_timestamp(block_number: int) -> int
¶
Return a UNIX timestamp for given block_number.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
block_number |
int
|
required |
Returns:
| Type | Description |
|---|---|
int
|
SubstrateNodeExtension
¶
Bases: SearchExtension
Implementation of SearchExtension using only Substrate RPC methods. Could be significant inefficient.
search_block_number(block_datetime: datetime, block_time: int = 6, **kwargs) -> int
¶
Search corresponding block number for provided block_datetime. the prediction tolerance is provided with
block_time
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
block_datetime |
datetime
|
required | |
block_time |
int
|
6
|
|
kwargs |
{}
|
Returns:
| Type | Description |
|---|---|
int
|