OracleContract

Oracle is a smart contract based on the Alchemint system that provides external data and global parameter configuration for solution and businessSolution projects.

Release Note：

1.0.1

Script Hash :

• 0xfde69a7dd2a1c948977fb3ce512158987c0e2197 (PrivateNet)
• 0xfde69a7dd2a1c948977fb3ce512158987c0e2197 (TestNet)

SAR Contract Address:

Interface introduction

Method	Parameter	Return Value	Description
setTypeA	byte[]=>addr、int=>value	bool	Set (B-side C-side) global config parameters; set (B-side) anchor whitelist;
getTypeA	byte[]=>addr	int	Get (B-side C-side) global config parameter; get (B-side) anchor to set whitelist;
setAccount	string=>key、byte[]=>addr	bool	Set the parameters in the contract
getAccount	string=>key	byte[]	Get the parameters in the contract
addParaAddrWhit	string=>key、byte[]=>addr、int=>value	bool	Add an authorization node Addr to the key
removeParaAddrWhit	string=>key、byte[]=>addr	bool	Remove an authorized node from the key
setTypeB	string=>key、byte[]=>addr、int=>value	bool	Set the digital asset price ($); set the exchange rate anchored to the US dollar ($) assignment storage
getTypeB	string=>key	int	Get the median price($) of digital asset and anchor from multi-nodes
setStructConfig	-	bool	Global configuration object Config assignment storage
getStructConfig	-	Config	Get the global configuration object Config
getApprovedAddrs	string=>key	object(NodeObj[])	Query the authorized feeder address and status according to the key
getAddrWithParas	string=>key	object(NodeObj[])	Query the feeder address and price according to the key

Using OracleContract

Using getTypeA

• key: the name of the configuration you want to get

if (operation == "getTypeA") {

    if (args.Length != 1) return false;

    string key = (string)args[0];

    return getTypeA(key); 
    
    }

All Key names that can be obtained in the TypeA method are as follows:

  public BigInteger liquidate_line_rate_b;

  public BigInteger liquidate_line_rate_c;

  public BigInteger liquidate_dis_rate_c;

  public BigInteger fee_rate_c;

  public BigInteger liquidate_top_rate_c;

  public BigInteger liquidate_line_rateT_c;

  public BigInteger issuing_fee_c;

  public BigInteger issuing_fee_b;

  public BigInteger debt_top_c;

Using setTypeB sets the price that a single node gets from the exchange

• Para: the name of the key you want to feed
• From: the node wallet address of the feed price
• Value: price

 if (operation == "setTypeB")  {
  
  if (args.Length != 3) return false;

  string para = (string)args[0];

  byte[] from = (byte[])args[1];

  BigInteger value = (BigInteger)args[2];

  BigInteger state = (BigInteger)Storage.Get(Storage.CurrentContext, GetParaAddrKey(para, from)).AsBigInteger();

  if (state == 0) return false;

  return setTypeB(para, from, value);
}

Using getTypeB to get the price of all the feed nodes after taking the median

• key: the name of the key you want to get

Currently the Key name of all asset names: "neo_price", "sneo_price", "gas_price", "sds_price"

if (operation == "getTypeB") {

  if (args.Length != 1) return false;
 
  string key = (string)args[0];

  return getTypeB(key);
}

Using getStructConfig to get the values of all global parameters in TypeA

if (operation == "getStructConfig") {
               
      return getStructConfig();
}