Economic Contract

The Economic contract establishes the economic system of the aelf. When the blockchain starts to work, this contract will initialize other contracts related to economic activities. Implements aelf Standards ACS1.

Contract Methods

Method Name	Request Type	Response Type	Description
IssueNativeToken	Economic.IssueNativeTokenInput	google.protobuf.Empty	Only ZeroContract is able to issue the native token.
InitialEconomicSystem	Economic.InitialEconomicSystemInput	google.protobuf.Empty	It will initialize other contracts related to economic activities (For instance, create the native token). This transaction only can be sent once because after the first sending, its state will be set to initialized.

AElf.Standards.ACS1

Method Name	Request Type	Response Type	Description
SetMethodFee	acs1.MethodFees	google.protobuf.Empty	Set the method fees for the specified method. Note that this will override all fees of the method.
ChangeMethodFeeController	AuthorityInfo	google.protobuf.Empty	Change the method fee controller, the default is parliament and default organization.
GetMethodFee	google.protobuf.StringValue	acs1.MethodFees	Query method fee information by method name.
GetMethodFeeController	google.protobuf.Empty	AuthorityInfo	Query the method fee controller.

Contract Types

AElf.Contracts.Economic

Economic.InitialEconomicSystemInput

Field	Type	Description	Label
native_token_symbol	string	The native token symbol.
native_token_name	string	The native token name.
native_token_total_supply	int64	The native token total supply.
native_token_decimals	int32	The accuracy of the native token.
is_native_token_burnable	bool	It indicates if the token is burnable.
mining_reward_total_amount	int64	It determines how much native token is used to reward the miners.
transaction_size_fee_unit_price	int64	todo: remove unused fields

Economic.IssueNativeTokenInput

Field	Type	Description	Label
amount	int64	The amount of token.
memo	string	The memo.
to	aelf.Address	The recipient of the token.

Economic.IssueResourceTokenInput

Field	Type	Description	Label
symbol	string	The symbol of resource token.
amount	int64	The amount of resource token.
memo	string	The memo.
to	aelf.Address	The recipient of the token.

AElf.Standards.ACS1

acs1.MethodFee

Field	Type	Description	Label
symbol	string	The token symbol of the method fee.
basic_fee	int64	The amount of fees to be charged.

acs1.MethodFees

Field	Type	Description	Label
method_name	string	The name of the method to be charged.
fees	MethodFee	List of fees to be charged.	repeated
is_size_fee_free	bool	Optional based on the implementation of SetMethodFee method.

AElf.Types

aelf.Address

Field	Type	Description	Label
value	bytes

aelf.BinaryMerkleTree

Field	Type	Description	Label
nodes	Hash	The leaf nodes.	repeated
root	Hash	The root node hash.
leaf_count	int32	The count of leaf node.

aelf.Hash

Field	Type	Description	Label
value	bytes

aelf.LogEvent

Field	Type	Description	Label
address	Address	The contract address.
name	string	The name of the log event.
indexed	bytes	The indexed data, used to calculate bloom.	repeated
non_indexed	bytes	The non indexed data.

aelf.MerklePath

Field	Type	Description	Label
merkle_path_nodes	MerklePathNode	The merkle path nodes.	repeated

aelf.MerklePathNode

Field	Type	Description	Label
hash	Hash	The node hash.
is_left_child_node	bool	Whether it is a left child node.

aelf.SInt32Value

Field	Type	Description	Label
value	sint32

aelf.SInt64Value

Field	Type	Description	Label
value	sint64

aelf.ScopedStatePath

Field	Type	Description	Label
address	Address	The scope address, which will be the contract address.
path	StatePath	The path of contract state.

aelf.SmartContractRegistration

Field	Type	Description	Label
category	sint32	The category of contract code(0: C#).
code	bytes	The byte array of the contract code.
code_hash	Hash	The hash of the contract code.
is_system_contract	bool	Whether it is a system contract.
version	int32	The version of the current contract.

aelf.StatePath

Field	Type	Description	Label
parts	string	The partial path of the state path.	repeated

aelf.Transaction

Field	Type	Description	Label
from	Address	The address of the sender of the transaction.
to	Address	The address of the contract when calling a contract.
ref_block_number	int64	The height of the referenced block hash.
ref_block_prefix	bytes	The first four bytes of the referenced block hash.
method_name	string	The name of a method in the smart contract at the To address.
params	bytes	The parameters to pass to the smart contract method.
signature	bytes	When signing a transaction it’s actually a subset of the fields: from/to and the target method as well as the parameter that were given. It also contains the reference block number and prefix.

aelf.TransactionExecutingStateSet

Field	Type	Description	Label
writes	TransactionExecutingStateSet.WritesEntry	The changed states.	repeated
reads	TransactionExecutingStateSet.ReadsEntry	The read states.	repeated
deletes	TransactionExecutingStateSet.DeletesEntry	The deleted states.	repeated

aelf.TransactionExecutingStateSet.DeletesEntry

Field	Type	Description	Label
key	string
value	bool

aelf.TransactionExecutingStateSet.ReadsEntry

Field	Type	Description	Label
key	string
value	bool

aelf.TransactionExecutingStateSet.WritesEntry

Field	Type	Description	Label
key	string
value	bytes

aelf.TransactionResult

Field	Type	Description	Label
transaction_id	Hash	The transaction id.
status	TransactionResultStatus	The transaction result status.
logs	LogEvent	The log events.	repeated
bloom	bytes	Bloom filter for transaction logs. A transaction log event can be defined in the contract and stored in the bloom filter after the transaction is executed. Through this filter, we can quickly search for and determine whether a log exists in the transaction result.
return_value	bytes	The return value of the transaction execution.
block_number	int64	The height of the block hat packages the transaction.
block_hash	Hash	The hash of the block hat packages the transaction.
error	string	Failed execution error message.

aelf.TransactionResultStatus

Name	Number	Description
NOT_EXISTED	0	The execution result of the transaction does not exist.
PENDING	1	The transaction is in the transaction pool waiting to be packaged.
FAILED	2	Transaction execution failed.
MINED	3	The transaction was successfully executed and successfully packaged into a block.
CONFLICT	4	When executed in parallel, there are conflicts with other transactions.
PENDING_VALIDATION	5	The transaction is waiting for validation.
NODE_VALIDATION_FAILED	6	Transaction validation failed.

AuthorityInfo

Field	Type	Description	Label
contract_address	aelf.Address	The contract address of the controller.
owner_address	aelf.Address	The address of the owner of the contract.