Module for common blockchain functions
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Methods
(inner) createSignature(payload, privateKeyType, signKeyType, signAlgorithm)
Creates a JSON Web Signature (JWS) with a private blockchain key
Parameters:
| Name | Type | Description |
|---|---|---|
payload |
Object | the payload to be signed |
privateKeyType |
string | the hexadecimal private blockchain key |
signKeyType |
string | the type of privatye blockchain key |
signAlgorithm |
string | the siging algorithm |
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(inner) determineStartingBlock(highestBlock, currentBlock, startingBlock, rewindBlocks) → {number}
Determines the starting block for a blockchain listener
Parameters:
| Name | Type | Description |
|---|---|---|
highestBlock |
number | the highest known block of the blockchain |
currentBlock |
number | the block currently being the latest processed |
startingBlock |
number | the block where the listener should start |
rewindBlocks |
number | the number of blocks to look back from highest block |
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Returns:
the starting block
- Type
- number
(inner) getEmptyState() → {Object}
Returns an empty blockchain state
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Returns:
An empty blockchain state
- Type
- Object
(inner) logStartingBlock(blockCursor, highestBlock)
Logs where the listener will start next
Parameters:
| Name | Type | Description |
|---|---|---|
blockCursor |
number | block pointer |
highestBlock |
number | the highest known block |
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