api_entities_Checkpoint.Checkpoint
@polymeshassociation/polymesh-sdk / Modules / api/entities/Checkpoint / Checkpoint
Class: Checkpoint
api/entities/Checkpoint.Checkpoint
Represents a snapshot of the Asset's holders and their respective balances at a certain point in time
Hierarchy
Entity<UniqueIdentifiers,HumanReadable>↳
Checkpoint
Table of contents
Properties
Methods
Properties
asset
• asset: Asset
Asset whose balances are being recorded in this Checkpoint
Defined in
id
• id: BigNumber
Checkpoint identifier number
Defined in
uuid
• uuid: string
Inherited from
Defined in
Methods
allBalances
▸ allBalances(paginationOpts?): Promise<ResultSet<IdentityBalance>>
Retrieve all Asset Holder balances at this Checkpoint
note supports pagination
note current Asset holders who didn't hold any tokens when the Checkpoint was created will be listed with a balance of 0. This arises from a chain storage optimization and pagination. @see balance for a more detailed explanation of the logic
Parameters
| Name | Type |
|---|---|
|
Returns
Promise<ResultSet<IdentityBalance>>
Defined in
api/entities/Checkpoint.ts:108
balance
▸ balance(args?): Promise<BigNumber>
Retrieve the balance of a specific Asset Holder Identity at this Checkpoint
note A checkpoint only records balances when they change. The implementation is to query for all balance updates for [ticker, did] pair. If no balance updates have happened since the Checkpoint has been created, then the storage will not have an entry for the user. Instead the current balance should be used. The balance is stored only when the Identity makes a transaction after a Checkpoint is created. This helps keep storage usage to a minimum
Parameters
| Name | Type | Description |
|---|---|---|
|
| - |
|
| defaults to the signing Identity |
Returns
Promise<BigNumber>
Defined in
api/entities/Checkpoint.ts:201
createdAt
▸ createdAt(): Promise<Date>
Retrieve this Checkpoint's creation date
Returns
Promise<Date>
Defined in
exists
▸ exists(): Promise<boolean>
Determine whether this Checkpoint exists on chain
Returns
Promise<boolean>
Overrides
Defined in
api/entities/Checkpoint.ts:245
isEqual
▸ isEqual(entity): boolean
Determine whether this Entity is the same as another one
Parameters
| Name | Type |
|---|---|
|
|
Returns
boolean
Inherited from
Defined in
toHuman
▸ toHuman(): HumanReadable
Return the Checkpoint's ticker and identifier
Returns
HumanReadable
Overrides
Defined in
api/entities/Checkpoint.ts:265
totalSupply
▸ totalSupply(): Promise<BigNumber>
Retrieve the Asset's total supply at this checkpoint
Returns
Promise<BigNumber>
Defined in
generateUuid
▸ Static generateUuid<Identifiers>(identifiers): string
Generate the Entity's UUID from its identifying properties
Type parameters
| Name |
|---|
|
Parameters
| Name | Type |
|---|---|
|
|
Returns
string
Inherited from
Defined in
unserialize
▸ Static unserialize<Identifiers>(serialized): Identifiers
Unserialize a UUID into its Unique Identifiers
Type parameters
| Name |
|---|
|
Parameters
| Name | Type | Description |
|---|---|---|
|
| UUID to unserialize |
Returns
Identifiers
Inherited from
Defined in
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