Storage
The Storage library allows a contract to interact with contract storage and also the decentralized file storage of Phantasma.
| Method | Return type | Description |
|---|---|---|
Storage.read(contract:String, field:String) | Generic | Reads a field from a contract. |
Storage.write(field:String, value:Any) | None | Writes a field value. Due to security reasons, it's not possible to specify a contract, instead the current contract is used. If the current context is not a valid contract or is a read-only context, this method will fail. |
Storage.delete(field:String) | None | Deletes a field. Same rules as Storage.write() |
Storage.calculateStorageSizeForStake(stakeAmount:Number) | Number | Converts amount of staked SOUL into kilobytes of storage. |
Storage.createFile(target:Address, fileName:String, fileSize:Number, contentMerkle:Bytes, encryptionContent:Bytes) | None | Creates a new decentralized file in the target address account. Note that since in Phantasma the actual file contents are not stored in the chain, only a content merkle should be provided. |
Storage.hasFile(target:Address, hash:Hash) | Bool | Returns true if the target is storing a file with the specified hash, false otherwise. |
Storage.addFile(from:Address, target:Address, archiveHash:Hash) | None | Copies a file with the specified hash into the target address storage. |
Storage.deleteFile(from:Address, targetHash:Hash) | None | Deletes the file with the specified hash from the specified address storage. |
Storage.hasPermission(externalAddr:Address, target:Address) | Bool | Returns true if external address has permission to add files to target address, false otherwise. |
Storage.addPermission(from:Address, externalAddr:Address) | None | Adds permission to external address to add files to from address storage. |
Storage.deletePermission(from:Address, externalAddr:Address) | None | Removes permission from external address to add files to from address storage. |
Storage.getUsedSpace(from:Address) | Number | Returns how many kilobytes are being used as storage by the specified address. |
Storage.getAvailableSpace(from:Address) | Number | Returns how many kilobytes are being available as storage by the specified address. |
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