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https://github.com/nspcc-dev/neo-go.git
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57c7df4dff
README update partially reverts c8d7671d26 and
updates it with current commands and sample output.
523 lines
8.9 KiB
Markdown
523 lines
8.9 KiB
Markdown
# Runtime
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A brief overview of NEO smart contract API's that can be used in the neo-go framework.
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# Overview
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1. [Account]()
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2. [Asset]()
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3. [Attribute]()
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4. [Block]()
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5. [Blockchain]()
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6. [Contract]()
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7. [Crypto]()
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8. [Engine]()
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9. [Enumerator]()
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10. [Iterator]()
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11. [Header]()
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12. [Input]()
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13. [Output]()
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14. [Runtime]()
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15. [Storage]()
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16. [Transaction]()
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17. [Util]()
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## Account
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#### GetScriptHash
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```
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GetScriptHash(a Account) []byte
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```
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Returns the script hash of the given account.
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#### GetVotes
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```
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GetVotes(a Account) [][]byte
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```
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Returns the the votes (a slice of public keys) of the given account.
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#### GetBalance
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```
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GetBalance(a Account, assetID []byte) int
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```
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Returns the balance of the given asset id for the given account.
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## Asset
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#### GetAssetID
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```
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GetAssetID(a Asset) []byte
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```
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Returns the id of the given asset.
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#### GetAmount
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```
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GetAmount(a Asset) int
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```
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Returns the amount of the given asset id.
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#### GetAvailable
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```
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GetAvailable(a Asset) int
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```
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Returns the available amount of the given asset.
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#### GetPrecision
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```
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GetPrecision(a Asset) byte
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```
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Returns the precision of the given Asset.
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#### GetOwner
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```
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GetOwner(a Asset) []byte
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```
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Returns the owner of the given asset.
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#### GetAdmin
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```
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GetAdmin(a Asset) []byte
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```
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Returns the admin of the given asset.
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#### GetIssuer
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```
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GetIssuer(a Asset) []byte
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```
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Returns the issuer of the given asset.
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#### Create
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```
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Create(type byte, name string, amount int, precision byte, owner, admin, issuer []byte)
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```
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Creates a new asset on the blockchain.
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#### Renew
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```
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Renew(asset Asset, years int)
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```
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Renews the given asset as long as the given years.
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## Attribute
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#### GetUsage
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```
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GetUsage(attr Attribute) []byte
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```
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Returns the usage of the given attribute.
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#### GetData
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```
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GetData(attr Attribute) []byte
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```
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Returns the data of the given attribute.
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## Block
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#### GetTransactionCount
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```
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GetTransactionCount(b Block) int
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```
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Returns the number of transactions that are recorded in the given block.
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#### GetTransactions
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```
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GetTransactions(b Block) []transaction.Transaction
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```
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Returns a slice of the transactions that are recorded in the given block.
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#### GetTransaction
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```
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GetTransaction(b Block, hash []byte) transaction.Transaction
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```
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Returns the transaction by the given hash that is recorded in the given block.
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## Blockchain
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#### GetHeight
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```
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GetHeight() int
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```
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Returns the current height of the blockchain.
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#### GetHeader
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```
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GetHeader(heightOrHash []interface{}) header.Header
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```
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Return the header by the given hash or index.
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#### GetBlock
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```
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GetBlock(heightOrHash interface{}) block.Block
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```
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Returns the block by the given hash or index.
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#### GetTransaction
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```
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GetTransaction(hash []byte) transaction.Transaction
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```
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Returns a transaction by the given hash.
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#### GetContract
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```
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GetContract(scriptHash []byte) contract.Contract
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```
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Returns the contract found by the given script hash.
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#### GetAccount
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```
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GetAccount(scriptHash []byte) account.Account
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```
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Returns the account found by the given script hash.
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#### GetValiditors
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```
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GetValidators() [][]byte
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```
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Returns a list of validators public keys.
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#### GetAsset
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```
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GetAsset(assetID []byte) asset.Asset
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```
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Returns the asset found by the given asset id.
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## Contract
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#### GetScript
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```
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GetScript(c Contract) []byte
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```
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Return the script of the given contract.
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#### IsPayable
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```
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IsPayable(c Contract) bool
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```
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Returns whether the given contract is payable.
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#### GetStorageContext
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```
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GetStorageContext(c Contract)
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```
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Returns the storage context of the given contract.
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#### Create
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```
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Create(
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script []byte,
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params []interface{},
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returnType byte,
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properties interface{},
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name,
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version,
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author,
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email,
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description string)
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```
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Creates a new contract on the blockchain.
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#### Migrate
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```
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Migrate(
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script []byte,
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params []interface{},
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returnType byte,
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properties interface{},
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name,
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version,
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author,
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email,
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description string)
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```
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Migrates a contract on the blockchain.
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#### Destroy
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```
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Destroy(c Contract)
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```
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Deletes the given contract from the blockchain.
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## Crypto
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#### SHA1
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```
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SHA1(data []byte) []byte
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```
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Computes the sha1 hash of the given bytes
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#### SHA256
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```
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SHA256(data []byte) []byte
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```
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Computes the sha256 hash of the given bytes
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#### Hash256
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```
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Hash256(data []byte) []byte
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```
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Computes the sha256^2 of the given data.
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#### Hash160
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```
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Hash160(data []byte) []byte) []byte
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```
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Computes the ripemd160 over the sha256 hash of the given data.
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## Engine
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#### GetScriptContainer
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```
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GetScriptContainer() transaction.Transaction
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```
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Returns the transaction that is in the context of the VM execution.
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#### GetExecutingScriptHash
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```
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GetExecutingScriptHash() []byte
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```
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Returns the script hash of the contract that is currently being executed.
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#### GetCallingScriptHash
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```
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GetCallingScriptHash() []byte
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```
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Returns the script hash of the contract that has started the execution of the current script.
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#### GetEntryScriptHash
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```
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GetEntryScriptHash() []byte
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```
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Returns the script hash of the contract that started the execution from the start.
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## Enumerator
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#### Create
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```
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Create(items []inteface{}) Enumerator
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```
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Create a enumerator from the given items.
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#### Next
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```
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Next(e Enumerator) interface{}
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```
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Returns the next item from the given enumerator.
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#### Value
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```
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Value(e Enumerator) interface{}
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```
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Returns the enumerator value.
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## Iterator
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#### Create
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```
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Create(items []inteface{}) Iterator
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```
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Creates an iterator from the given items.
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#### Key
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```
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Key(it Iterator) interface{}
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```
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Return the key from the given iterator.
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#### Keys
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```
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Keys(it Iterator) []interface{}
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```
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Returns the iterator's keys
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#### Values
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```
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Values(it Iterator) []interface{}
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```
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Returns the iterator's values
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## Header
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#### GetIndex
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```
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GetIndex(h Header) int
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```
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Returns the height of the given header.
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#### GetHash
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```
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GetHash(h Header) []byte
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```
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Returns the hash of the given header.
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#### GetPrevHash
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```
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GetPrevhash(h Header) []byte
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```
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Returns the previous hash of the given header.
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#### GetTimestamp
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```
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GetTimestamp(h Header) int
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```
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Returns the timestamp of the given header.
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#### GetVersion
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```
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GetVersion(h Header) int
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```
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Returns the version of the given header.
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#### GetMerkleroot
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```
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GetMerkleRoot(h Header) []byte
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```
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Returns the merkle root of the given header.
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#### GetConsensusData
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```
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GetConsensusData(h Header) int
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```
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Returns the consensus data of the given header.
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#### GetNextConsensus
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```
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GetNextConsensus(h Header) []byte
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```
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Returns the next consensus of the given header.
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## Input
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#### GetHash
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```
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GetHash(in Input) []byte
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```
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Returns the hash field of the given input.
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#### GetIndex
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```
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GetIndex(in Input) int
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```
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Returns the index field of the given input.
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## Output
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#### GetAssetID
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```
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GetAssetId(out Output) []byte
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```
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Returns the asset id field of the given output.
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#### GetValue
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```
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GetValue(out Output) int
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```
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Returns the value field of the given output.
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#### GetScriptHash
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```
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GetScriptHash(out Output) []byte
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```
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Returns the script hash field of the given output.
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## Runtime
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#### CheckWitness
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```
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CheckWitness(hash []byte) bool
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```
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Verifies if the given hash is the hash of the contract owner.
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#### Log
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```
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Log(message string)
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```
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Logs the given message.
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#### Notify
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```
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Notify(args ...interface{}) int
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```
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Notify any number of arguments to the VM.
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#### GetTime
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```
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GetTime() int
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```
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Returns the current time based on the highest block in the chain.
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#### GetTrigger
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```
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GetTrigger() byte
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```
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Returns the trigger type of the execution.
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#### Serialize
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```
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Serialize(item interface{}) []byte
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```
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Serialize the given stack item to a slice of bytes.
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#### Deserialize
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```
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Deserialize(data []byte) interface{}
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```
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Deserializes the given data to a stack item.
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## Storage
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#### GetContext
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```
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GetContext() Context
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```
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Returns the current storage context.
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#### Put
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```
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Put(ctx Context, key, value []interface{})
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```
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Stores the given value at the given key.
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#### Get
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```
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Get(ctx Context, key interface{}) interface{}
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```
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Returns the value found at the given key.
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#### Delete
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```
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Delete(ctx Context, key interface{})
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```
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Delete's the given key from storage.
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#### Find
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```
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Find(ctx Context, key interface{}) iterator.Iterator
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```
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Find returns an iterator key-values that match the given key.
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## Transaction
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#### GetHash
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```
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GetHash(t Transacfion) []byte
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```
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Returns the hash for the given transaction.
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#### GetType
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```
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GetType(t Transacfion) byte
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```
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Returns the type of the given transaction.
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#### GetAttributes
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```
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GetAttributes(t Transacfion) []attribute.Attribute
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```
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Returns the attributes of the given transaction.
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#### GetReferences
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```
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GetReferences(t Transacfion) interface{}
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```
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Returns the references of the given transaction.
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#### GetUnspentCoins
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```
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GetUnspentCoins(t Transacfion) interface{}
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```
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Returns the unspent coins of the given transaction.
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#### GetOutputs
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```
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GetOutputs(t Transacfion) []output.Output
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```
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Returns the outputs of the given transaction
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#### GetInputs
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```
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GetInputs(t Transacfion) []input.Input
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```
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Returns the inputs of the given transaction
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