mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-11-26 09:42:22 +00:00
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
|
|
A brief overview of NEO smart contract API's that can be used in the neo-go framework.
|
|
|
|
# Overview
|
|
1. [Account]()
|
|
2. [Asset]()
|
|
3. [Attribute]()
|
|
4. [Block]()
|
|
5. [Blockchain]()
|
|
6. [Contract]()
|
|
7. [Crypto]()
|
|
8. [Engine]()
|
|
9. [Enumerator]()
|
|
10. [Iterator]()
|
|
11. [Header]()
|
|
12. [Input]()
|
|
13. [Output]()
|
|
14. [Runtime]()
|
|
15. [Storage]()
|
|
16. [Transaction]()
|
|
17. [Util]()
|
|
|
|
## Account
|
|
#### GetScriptHash
|
|
```
|
|
GetScriptHash(a Account) []byte
|
|
```
|
|
Returns the script hash of the given account.
|
|
|
|
#### GetVotes
|
|
```
|
|
GetVotes(a Account) [][]byte
|
|
```
|
|
Returns the the votes (a slice of public keys) of the given account.
|
|
|
|
#### GetBalance
|
|
```
|
|
GetBalance(a Account, assetID []byte) int
|
|
```
|
|
Returns the balance of the given asset id for the given account.
|
|
|
|
## Asset
|
|
#### GetAssetID
|
|
```
|
|
GetAssetID(a Asset) []byte
|
|
```
|
|
Returns the id of the given asset.
|
|
|
|
#### GetAmount
|
|
```
|
|
GetAmount(a Asset) int
|
|
```
|
|
Returns the amount of the given asset id.
|
|
|
|
#### GetAvailable
|
|
```
|
|
GetAvailable(a Asset) int
|
|
```
|
|
Returns the available amount of the given asset.
|
|
|
|
#### GetPrecision
|
|
```
|
|
GetPrecision(a Asset) byte
|
|
```
|
|
Returns the precision of the given Asset.
|
|
|
|
#### GetOwner
|
|
```
|
|
GetOwner(a Asset) []byte
|
|
```
|
|
Returns the owner of the given asset.
|
|
|
|
#### GetAdmin
|
|
```
|
|
GetAdmin(a Asset) []byte
|
|
```
|
|
Returns the admin of the given asset.
|
|
|
|
#### GetIssuer
|
|
```
|
|
GetIssuer(a Asset) []byte
|
|
```
|
|
Returns the issuer of the given asset.
|
|
|
|
#### Create
|
|
```
|
|
Create(type byte, name string, amount int, precision byte, owner, admin, issuer []byte)
|
|
```
|
|
Creates a new asset on the blockchain.
|
|
|
|
#### Renew
|
|
```
|
|
Renew(asset Asset, years int)
|
|
```
|
|
Renews the given asset as long as the given years.
|
|
|
|
## Attribute
|
|
#### GetUsage
|
|
```
|
|
GetUsage(attr Attribute) []byte
|
|
```
|
|
Returns the usage of the given attribute.
|
|
|
|
#### GetData
|
|
```
|
|
GetData(attr Attribute) []byte
|
|
```
|
|
Returns the data of the given attribute.
|
|
|
|
## Block
|
|
#### GetTransactionCount
|
|
```
|
|
GetTransactionCount(b Block) int
|
|
```
|
|
Returns the number of transactions that are recorded in the given block.
|
|
|
|
#### GetTransactions
|
|
```
|
|
GetTransactions(b Block) []transaction.Transaction
|
|
```
|
|
Returns a slice of the transactions that are recorded in the given block.
|
|
|
|
#### GetTransaction
|
|
```
|
|
GetTransaction(b Block, hash []byte) transaction.Transaction
|
|
```
|
|
Returns the transaction by the given hash that is recorded in the given block.
|
|
|
|
## Blockchain
|
|
#### GetHeight
|
|
```
|
|
GetHeight() int
|
|
```
|
|
Returns the current height of the blockchain.
|
|
|
|
#### GetHeader
|
|
```
|
|
GetHeader(heightOrHash []interface{}) header.Header
|
|
```
|
|
Return the header by the given hash or index.
|
|
|
|
#### GetBlock
|
|
```
|
|
GetBlock(heightOrHash interface{}) block.Block
|
|
```
|
|
Returns the block by the given hash or index.
|
|
|
|
#### GetTransaction
|
|
```
|
|
GetTransaction(hash []byte) transaction.Transaction
|
|
```
|
|
Returns a transaction by the given hash.
|
|
|
|
#### GetContract
|
|
```
|
|
GetContract(scriptHash []byte) contract.Contract
|
|
```
|
|
Returns the contract found by the given script hash.
|
|
|
|
#### GetAccount
|
|
```
|
|
GetAccount(scriptHash []byte) account.Account
|
|
```
|
|
Returns the account found by the given script hash.
|
|
|
|
#### GetValiditors
|
|
```
|
|
GetValidators() [][]byte
|
|
```
|
|
Returns a list of validators public keys.
|
|
|
|
#### GetAsset
|
|
```
|
|
GetAsset(assetID []byte) asset.Asset
|
|
```
|
|
Returns the asset found by the given asset id.
|
|
|
|
## Contract
|
|
#### GetScript
|
|
```
|
|
GetScript(c Contract) []byte
|
|
```
|
|
Return the script of the given contract.
|
|
|
|
#### IsPayable
|
|
```
|
|
IsPayable(c Contract) bool
|
|
```
|
|
Returns whether the given contract is payable.
|
|
|
|
#### GetStorageContext
|
|
```
|
|
GetStorageContext(c Contract)
|
|
```
|
|
Returns the storage context of the given contract.
|
|
|
|
#### Create
|
|
```
|
|
Create(
|
|
script []byte,
|
|
params []interface{},
|
|
returnType byte,
|
|
properties interface{},
|
|
name,
|
|
version,
|
|
author,
|
|
email,
|
|
description string)
|
|
```
|
|
Creates a new contract on the blockchain.
|
|
|
|
#### Migrate
|
|
```
|
|
Migrate(
|
|
script []byte,
|
|
params []interface{},
|
|
returnType byte,
|
|
properties interface{},
|
|
name,
|
|
version,
|
|
author,
|
|
email,
|
|
description string)
|
|
```
|
|
Migrates a contract on the blockchain.
|
|
|
|
#### Destroy
|
|
```
|
|
Destroy(c Contract)
|
|
```
|
|
Deletes the given contract from the blockchain.
|
|
|
|
## Crypto
|
|
#### SHA1
|
|
```
|
|
SHA1(data []byte) []byte
|
|
```
|
|
Computes the sha1 hash of the given bytes
|
|
|
|
#### SHA256
|
|
```
|
|
SHA256(data []byte) []byte
|
|
```
|
|
Computes the sha256 hash of the given bytes
|
|
|
|
#### Hash256
|
|
```
|
|
Hash256(data []byte) []byte
|
|
```
|
|
Computes the sha256^2 of the given data.
|
|
|
|
#### Hash160
|
|
```
|
|
Hash160(data []byte) []byte) []byte
|
|
```
|
|
Computes the ripemd160 over the sha256 hash of the given data.
|
|
|
|
## Engine
|
|
#### GetScriptContainer
|
|
```
|
|
GetScriptContainer() transaction.Transaction
|
|
```
|
|
Returns the transaction that is in the context of the VM execution.
|
|
|
|
#### GetExecutingScriptHash
|
|
```
|
|
GetExecutingScriptHash() []byte
|
|
```
|
|
Returns the script hash of the contract that is currently being executed.
|
|
|
|
#### GetCallingScriptHash
|
|
```
|
|
GetCallingScriptHash() []byte
|
|
```
|
|
Returns the script hash of the contract that has started the execution of the current script.
|
|
|
|
#### GetEntryScriptHash
|
|
```
|
|
GetEntryScriptHash() []byte
|
|
```
|
|
Returns the script hash of the contract that started the execution from the start.
|
|
|
|
## Enumerator
|
|
#### Create
|
|
```
|
|
Create(items []inteface{}) Enumerator
|
|
```
|
|
Create a enumerator from the given items.
|
|
|
|
#### Next
|
|
```
|
|
Next(e Enumerator) interface{}
|
|
```
|
|
Returns the next item from the given enumerator.
|
|
|
|
#### Value
|
|
```
|
|
Value(e Enumerator) interface{}
|
|
```
|
|
Returns the enumerator value.
|
|
|
|
## Iterator
|
|
#### Create
|
|
```
|
|
Create(items []inteface{}) Iterator
|
|
```
|
|
Creates an iterator from the given items.
|
|
|
|
#### Key
|
|
```
|
|
Key(it Iterator) interface{}
|
|
```
|
|
Return the key from the given iterator.
|
|
|
|
#### Keys
|
|
```
|
|
Keys(it Iterator) []interface{}
|
|
```
|
|
Returns the iterator's keys
|
|
|
|
#### Values
|
|
```
|
|
Values(it Iterator) []interface{}
|
|
```
|
|
Returns the iterator's values
|
|
|
|
## Header
|
|
#### GetIndex
|
|
```
|
|
GetIndex(h Header) int
|
|
```
|
|
Returns the height of the given header.
|
|
|
|
#### GetHash
|
|
```
|
|
GetHash(h Header) []byte
|
|
```
|
|
Returns the hash of the given header.
|
|
|
|
#### GetPrevHash
|
|
```
|
|
GetPrevhash(h Header) []byte
|
|
```
|
|
Returns the previous hash of the given header.
|
|
|
|
#### GetTimestamp
|
|
```
|
|
GetTimestamp(h Header) int
|
|
```
|
|
Returns the timestamp of the given header.
|
|
|
|
#### GetVersion
|
|
```
|
|
GetVersion(h Header) int
|
|
```
|
|
Returns the version of the given header.
|
|
|
|
#### GetMerkleroot
|
|
```
|
|
GetMerkleRoot(h Header) []byte
|
|
```
|
|
Returns the merkle root of the given header.
|
|
|
|
#### GetConsensusData
|
|
```
|
|
GetConsensusData(h Header) int
|
|
```
|
|
Returns the consensus data of the given header.
|
|
|
|
#### GetNextConsensus
|
|
```
|
|
GetNextConsensus(h Header) []byte
|
|
```
|
|
Returns the next consensus of the given header.
|
|
|
|
## Input
|
|
#### GetHash
|
|
```
|
|
GetHash(in Input) []byte
|
|
```
|
|
Returns the hash field of the given input.
|
|
|
|
#### GetIndex
|
|
```
|
|
GetIndex(in Input) int
|
|
```
|
|
Returns the index field of the given input.
|
|
|
|
## Output
|
|
#### GetAssetID
|
|
```
|
|
GetAssetId(out Output) []byte
|
|
```
|
|
Returns the asset id field of the given output.
|
|
|
|
#### GetValue
|
|
```
|
|
GetValue(out Output) int
|
|
```
|
|
Returns the value field of the given output.
|
|
|
|
#### GetScriptHash
|
|
```
|
|
GetScriptHash(out Output) []byte
|
|
```
|
|
Returns the script hash field of the given output.
|
|
|
|
## Runtime
|
|
#### CheckWitness
|
|
```
|
|
CheckWitness(hash []byte) bool
|
|
```
|
|
Verifies if the given hash is the hash of the contract owner.
|
|
|
|
#### Log
|
|
```
|
|
Log(message string)
|
|
```
|
|
Logs the given message.
|
|
|
|
#### Notify
|
|
```
|
|
Notify(args ...interface{}) int
|
|
```
|
|
Notify any number of arguments to the VM.
|
|
|
|
#### GetTime
|
|
```
|
|
GetTime() int
|
|
```
|
|
Returns the current time based on the highest block in the chain.
|
|
|
|
#### GetTrigger
|
|
```
|
|
GetTrigger() byte
|
|
```
|
|
Returns the trigger type of the execution.
|
|
|
|
#### Serialize
|
|
```
|
|
Serialize(item interface{}) []byte
|
|
```
|
|
Serialize the given stack item to a slice of bytes.
|
|
|
|
#### Deserialize
|
|
```
|
|
Deserialize(data []byte) interface{}
|
|
```
|
|
Deserializes the given data to a stack item.
|
|
|
|
## Storage
|
|
#### GetContext
|
|
```
|
|
GetContext() Context
|
|
```
|
|
Returns the current storage context.
|
|
|
|
#### Put
|
|
```
|
|
Put(ctx Context, key, value []interface{})
|
|
```
|
|
Stores the given value at the given key.
|
|
|
|
#### Get
|
|
```
|
|
Get(ctx Context, key interface{}) interface{}
|
|
```
|
|
Returns the value found at the given key.
|
|
|
|
#### Delete
|
|
```
|
|
Delete(ctx Context, key interface{})
|
|
```
|
|
Delete's the given key from storage.
|
|
|
|
#### Find
|
|
```
|
|
Find(ctx Context, key interface{}) iterator.Iterator
|
|
```
|
|
Find returns an iterator key-values that match the given key.
|
|
|
|
## Transaction
|
|
#### GetHash
|
|
```
|
|
GetHash(t Transacfion) []byte
|
|
```
|
|
Returns the hash for the given transaction.
|
|
|
|
#### GetType
|
|
```
|
|
GetType(t Transacfion) byte
|
|
```
|
|
Returns the type of the given transaction.
|
|
|
|
#### GetAttributes
|
|
```
|
|
GetAttributes(t Transacfion) []attribute.Attribute
|
|
```
|
|
Returns the attributes of the given transaction.
|
|
|
|
#### GetReferences
|
|
```
|
|
GetReferences(t Transacfion) interface{}
|
|
```
|
|
Returns the references of the given transaction.
|
|
|
|
#### GetUnspentCoins
|
|
```
|
|
GetUnspentCoins(t Transacfion) interface{}
|
|
```
|
|
Returns the unspent coins of the given transaction.
|
|
|
|
#### GetOutputs
|
|
```
|
|
GetOutputs(t Transacfion) []output.Output
|
|
```
|
|
Returns the outputs of the given transaction
|
|
|
|
#### GetInputs
|
|
```
|
|
GetInputs(t Transacfion) []input.Input
|
|
```
|
|
Returns the inputs of the given transaction
|