github.com/0chain/gosdk@v1.17.11/zcnbridge/README.MD (about)

     1  <!-- Code generated by gomarkdoc. DO NOT EDIT -->
     2  
     3  # zcnbridge
     4  
     5  ```go
     6  import "github.com/0chain/gosdk/zcnbridge"
     7  ```
     8  
     9  ## Index
    10  
    11  - [Constants](<#constants>)
    12  - [Variables](<#variables>)
    13  - [func AccountExists\(homedir, address string\) bool](<#AccountExists>)
    14  - [func ConfirmEthereumTransaction\(hash string, times int, duration time.Duration\) \(int, error\)](<#ConfirmEthereumTransaction>)
    15  - [func ConvertIntToHex\(value int64\) string](<#ConvertIntToHex>)
    16  - [func CreateKeyStorage\(homedir, password string\) error](<#CreateKeyStorage>)
    17  - [func DeleteAccount\(homedir, address string\) bool](<#DeleteAccount>)
    18  - [func EncodePackInt64\(key string, param int64\) common.Hash](<#EncodePackInt64>)
    19  - [func GetAuthorizer\(id string, cb zcncore.GetInfoCallback\) \(err error\)](<#GetAuthorizer>)
    20  - [func GetAuthorizers\(active bool, cb zcncore.GetInfoCallback\) \(err error\)](<#GetAuthorizers>)
    21  - [func GetGlobalConfig\(cb zcncore.GetInfoCallback\) \(err error\)](<#GetGlobalConfig>)
    22  - [func GetTransactionStatus\(hash string\) \(int, error\)](<#GetTransactionStatus>)
    23  - [func ImportAccount\(homedir, mnemonic, password string, accountAddrIndex ...AccountAddressIndex\) \(string, error\)](<#ImportAccount>)
    24  - [func ListStorageAccounts\(homedir string\) \[\]common.Address](<#ListStorageAccounts>)
    25  - [type AccountAddressIndex](<#AccountAddressIndex>)
    26  - [type AlchemyGasEstimationRequest](<#AlchemyGasEstimationRequest>)
    27  - [type AuthorizerNode](<#AuthorizerNode>)
    28  - [type AuthorizerNodesResponse](<#AuthorizerNodesResponse>)
    29  - [type AuthorizerResponse](<#AuthorizerResponse>)
    30  - [type BancorTokenDetails](<#BancorTokenDetails>)
    31  - [type BridgeClient](<#BridgeClient>)
    32    - [func NewBridgeClient\(bridgeAddress, tokenAddress, authorizersAddress, uniswapAddress, ethereumAddress, ethereumNodeURL, password string, gasLimit uint64, consensusThreshold float64, ethereumClient EthereumClient, transactionProvider transaction.TransactionProvider, keyStore KeyStore\) \*BridgeClient](<#NewBridgeClient>)
    33    - [func SetupBridgeClientSDK\(cfg \*BridgeSDKConfig\) \*BridgeClient](<#SetupBridgeClientSDK>)
    34    - [func \(b \*BridgeClient\) AddEthereumAuthorizer\(ctx context.Context, address common.Address\) \(\*types.Transaction, error\)](<#BridgeClient.AddEthereumAuthorizer>)
    35    - [func \(b \*BridgeClient\) AddEthereumAuthorizers\(configDir string\)](<#BridgeClient.AddEthereumAuthorizers>)
    36    - [func \(b \*BridgeClient\) ApproveUSDCSwap\(ctx context.Context, source uint64\) \(\*types.Transaction, error\)](<#BridgeClient.ApproveUSDCSwap>)
    37    - [func \(b \*BridgeClient\) BurnWZCN\(ctx context.Context, amountTokens uint64\) \(\*types.Transaction, error\)](<#BridgeClient.BurnWZCN>)
    38    - [func \(b \*BridgeClient\) BurnZCN\(ctx context.Context, amount, txnfee uint64\) \(transaction.Transaction, error\)](<#BridgeClient.BurnZCN>)
    39    - [func \(b \*BridgeClient\) CreateSignedTransactionFromKeyStore\(client EthereumClient, gasLimitUnits uint64\) \*bind.TransactOpts](<#BridgeClient.CreateSignedTransactionFromKeyStore>)
    40    - [func \(b \*BridgeClient\) EstimateBurnWZCNGasAmount\(ctx context.Context, from, to, amountTokens string\) \(float64, error\)](<#BridgeClient.EstimateBurnWZCNGasAmount>)
    41    - [func \(b \*BridgeClient\) EstimateGasPrice\(ctx context.Context\) \(float64, error\)](<#BridgeClient.EstimateGasPrice>)
    42    - [func \(b \*BridgeClient\) EstimateMintWZCNGasAmount\(ctx context.Context, from, to, zcnTransactionRaw, amountToken string, nonceRaw int64, signaturesRaw \[\]\[\]byte\) \(float64, error\)](<#BridgeClient.EstimateMintWZCNGasAmount>)
    43    - [func \(b \*BridgeClient\) GetETHSwapAmount\(ctx context.Context, source uint64\) \(\*big.Int, error\)](<#BridgeClient.GetETHSwapAmount>)
    44    - [func \(b \*BridgeClient\) GetTokenBalance\(\) \(\*big.Int, error\)](<#BridgeClient.GetTokenBalance>)
    45    - [func \(b \*BridgeClient\) GetUserNonceMinted\(ctx context.Context, rawEthereumAddress string\) \(\*big.Int, error\)](<#BridgeClient.GetUserNonceMinted>)
    46    - [func \(b \*BridgeClient\) IncreaseBurnerAllowance\(ctx context.Context, allowanceAmount uint64\) \(\*types.Transaction, error\)](<#BridgeClient.IncreaseBurnerAllowance>)
    47    - [func \(b \*BridgeClient\) MintWZCN\(ctx context.Context, payload \*ethereum.MintPayload\) \(\*types.Transaction, error\)](<#BridgeClient.MintWZCN>)
    48    - [func \(b \*BridgeClient\) MintZCN\(ctx context.Context, payload \*zcnsc.MintPayload\) \(string, error\)](<#BridgeClient.MintZCN>)
    49    - [func \(b \*BridgeClient\) NFTConfigGetAddress\(ctx context.Context, key string\) \(string, string, error\)](<#BridgeClient.NFTConfigGetAddress>)
    50    - [func \(b \*BridgeClient\) NFTConfigGetUint256\(ctx context.Context, key string, keyParam ...int64\) \(string, int64, error\)](<#BridgeClient.NFTConfigGetUint256>)
    51    - [func \(b \*BridgeClient\) NFTConfigSetAddress\(ctx context.Context, key, address string\) \(\*types.Transaction, error\)](<#BridgeClient.NFTConfigSetAddress>)
    52    - [func \(b \*BridgeClient\) NFTConfigSetUint256\(ctx context.Context, key string, value int64\) \(\*types.Transaction, error\)](<#BridgeClient.NFTConfigSetUint256>)
    53    - [func \(b \*BridgeClient\) NFTConfigSetUint256Raw\(ctx context.Context, key common.Hash, value int64\) \(\*types.Transaction, error\)](<#BridgeClient.NFTConfigSetUint256Raw>)
    54    - [func \(b \*BridgeClient\) QueryEthereumBurnEvents\(startNonce string\) \(\[\]\*ethereum.BurnEvent, error\)](<#BridgeClient.QueryEthereumBurnEvents>)
    55    - [func \(b \*BridgeClient\) QueryEthereumMintPayload\(zchainBurnHash string\) \(\*ethereum.MintPayload, error\)](<#BridgeClient.QueryEthereumMintPayload>)
    56    - [func \(b \*BridgeClient\) QueryZChainMintPayload\(ethBurnHash string\) \(\*zcnsc.MintPayload, error\)](<#BridgeClient.QueryZChainMintPayload>)
    57    - [func \(b \*BridgeClient\) RemoveEthereumAuthorizer\(ctx context.Context, address common.Address\) \(\*types.Transaction, error\)](<#BridgeClient.RemoveEthereumAuthorizer>)
    58    - [func \(b \*BridgeClient\) ResetUserNonceMinted\(ctx context.Context\) \(\*types.Transaction, error\)](<#BridgeClient.ResetUserNonceMinted>)
    59    - [func \(b \*BridgeClient\) SignWithEthereumChain\(message string\) \(\[\]byte, error\)](<#BridgeClient.SignWithEthereumChain>)
    60    - [func \(b \*BridgeClient\) SwapETH\(ctx context.Context, source uint64, target uint64\) \(\*types.Transaction, error\)](<#BridgeClient.SwapETH>)
    61    - [func \(b \*BridgeClient\) SwapUSDC\(ctx context.Context, source uint64, target uint64\) \(\*types.Transaction, error\)](<#BridgeClient.SwapUSDC>)
    62    - [func \(b \*BridgeClient\) VerifyZCNTransaction\(ctx context.Context, hash string\) \(transaction.Transaction, error\)](<#BridgeClient.VerifyZCNTransaction>)
    63  - [type BridgeSDKConfig](<#BridgeSDKConfig>)
    64  - [type DetailedAccount](<#DetailedAccount>)
    65  - [type EthereumBurnEvents](<#EthereumBurnEvents>)
    66    - [func \(r \*EthereumBurnEvents\) Data\(\) interface\{\}](<#EthereumBurnEvents.Data>)
    67    - [func \(r \*EthereumBurnEvents\) Error\(\) error](<#EthereumBurnEvents.Error>)
    68    - [func \(r \*EthereumBurnEvents\) GetAuthorizerID\(\) string](<#EthereumBurnEvents.GetAuthorizerID>)
    69    - [func \(r \*EthereumBurnEvents\) SetAuthorizerID\(id string\)](<#EthereumBurnEvents.SetAuthorizerID>)
    70  - [type EthereumClient](<#EthereumClient>)
    71  - [type GasEstimationRequest](<#GasEstimationRequest>)
    72  - [type GasPriceEstimationResult](<#GasPriceEstimationResult>)
    73  - [type JobError](<#JobError>)
    74    - [func \(e \*JobError\) MarshalJSON\(\) \(\[\]byte, error\)](<#JobError.MarshalJSON>)
    75    - [func \(e \*JobError\) UnmarshalJSON\(buf \[\]byte\) error](<#JobError.UnmarshalJSON>)
    76  - [type JobResult](<#JobResult>)
    77  - [type JobStatus](<#JobStatus>)
    78  - [type KeyStore](<#KeyStore>)
    79    - [func NewKeyStore\(path string\) KeyStore](<#NewKeyStore>)
    80  - [type ProofEthereumBurn](<#ProofEthereumBurn>)
    81  - [type ProofZCNBurn](<#ProofZCNBurn>)
    82    - [func \(r \*ProofZCNBurn\) Data\(\) interface\{\}](<#ProofZCNBurn.Data>)
    83    - [func \(r \*ProofZCNBurn\) Error\(\) error](<#ProofZCNBurn.Error>)
    84    - [func \(r \*ProofZCNBurn\) GetAuthorizerID\(\) string](<#ProofZCNBurn.GetAuthorizerID>)
    85    - [func \(r \*ProofZCNBurn\) SetAuthorizerID\(id string\)](<#ProofZCNBurn.SetAuthorizerID>)
    86  - [type WZCNBurnEvent](<#WZCNBurnEvent>)
    87    - [func \(r \*WZCNBurnEvent\) Data\(\) interface\{\}](<#WZCNBurnEvent.Data>)
    88    - [func \(r \*WZCNBurnEvent\) Error\(\) error](<#WZCNBurnEvent.Error>)
    89    - [func \(r \*WZCNBurnEvent\) GetAuthorizerID\(\) string](<#WZCNBurnEvent.GetAuthorizerID>)
    90    - [func \(r \*WZCNBurnEvent\) SetAuthorizerID\(id string\)](<#WZCNBurnEvent.SetAuthorizerID>)
    91  
    92  
    93  ## Constants
    94  
    95  <a name="TenderlyProvider"></a>
    96  
    97  ```go
    98  const (
    99      TenderlyProvider = iota
   100      AlchemyProvider
   101      UnknownProvider
   102  )
   103  ```
   104  
   105  <a name="UniswapRouterAddress"></a>
   106  
   107  ```go
   108  const (
   109      UniswapRouterAddress = "0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D"
   110      UsdcTokenAddress     = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
   111      WethTokenAddress     = "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"
   112  )
   113  ```
   114  
   115  <a name="EthereumWalletStorageDir"></a>
   116  
   117  ```go
   118  const (
   119      EthereumWalletStorageDir = "wallets"
   120  )
   121  ```
   122  
   123  ## Variables
   124  
   125  <a name="DefaultClientIDEncoder"></a>
   126  
   127  ```go
   128  var (
   129      DefaultClientIDEncoder = func(id string) []byte {
   130          result, err := hex.DecodeString(id)
   131          if err != nil {
   132              Logger.Fatal(err)
   133          }
   134          return result
   135      }
   136  )
   137  ```
   138  
   139  <a name="Logger"></a>
   140  
   141  ```go
   142  var Logger logger.Logger
   143  ```
   144  
   145  <a name="AccountExists"></a>
   146  ## func [AccountExists](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/keystore.go#L92>)
   147  
   148  ```go
   149  func AccountExists(homedir, address string) bool
   150  ```
   151  
   152  AccountExists checks if account exists
   153  
   154  <a name="ConfirmEthereumTransaction"></a>
   155  ## func [ConfirmEthereumTransaction](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge_helper.go#L54>)
   156  
   157  ```go
   158  func ConfirmEthereumTransaction(hash string, times int, duration time.Duration) (int, error)
   159  ```
   160  
   161  
   162  
   163  <a name="ConvertIntToHex"></a>
   164  ## func [ConvertIntToHex](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge_helper.go#L99>)
   165  
   166  ```go
   167  func ConvertIntToHex(value int64) string
   168  ```
   169  
   170  ConvertIntToHex converts given int value to hex string.
   171  
   172  <a name="CreateKeyStorage"></a>
   173  ## func [CreateKeyStorage](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/keystore.go#L116>)
   174  
   175  ```go
   176  func CreateKeyStorage(homedir, password string) error
   177  ```
   178  
   179  CreateKeyStorage create, restore or unlock key storage
   180  
   181  <a name="DeleteAccount"></a>
   182  ## func [DeleteAccount](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/keystore.go#L73>)
   183  
   184  ```go
   185  func DeleteAccount(homedir, address string) bool
   186  ```
   187  
   188  DeleteAccount deletes account from wallet
   189  
   190  <a name="EncodePackInt64"></a>
   191  ## func [EncodePackInt64](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L236>)
   192  
   193  ```go
   194  func EncodePackInt64(key string, param int64) common.Hash
   195  ```
   196  
   197  EncodePackInt do abi.encodedPack\(string, int\), it is used for setting plan id for royalty
   198  
   199  <a name="GetAuthorizer"></a>
   200  ## func [GetAuthorizer](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/rest.go#L75>)
   201  
   202  ```go
   203  func GetAuthorizer(id string, cb zcncore.GetInfoCallback) (err error)
   204  ```
   205  
   206  GetAuthorizer returned authorizer by ID
   207  
   208  <a name="GetAuthorizers"></a>
   209  ## func [GetAuthorizers](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/rest.go#L94>)
   210  
   211  ```go
   212  func GetAuthorizers(active bool, cb zcncore.GetInfoCallback) (err error)
   213  ```
   214  
   215  GetAuthorizers Returns all or only active authorizers
   216  
   217  <a name="GetGlobalConfig"></a>
   218  ## func [GetGlobalConfig](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/rest.go#L104>)
   219  
   220  ```go
   221  func GetGlobalConfig(cb zcncore.GetInfoCallback) (err error)
   222  ```
   223  
   224  GetGlobalConfig Returns global config
   225  
   226  <a name="GetTransactionStatus"></a>
   227  ## func [GetTransactionStatus](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge_helper.go#L45>)
   228  
   229  ```go
   230  func GetTransactionStatus(hash string) (int, error)
   231  ```
   232  
   233  
   234  
   235  <a name="ImportAccount"></a>
   236  ## func [ImportAccount](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/keystore.go#L135>)
   237  
   238  ```go
   239  func ImportAccount(homedir, mnemonic, password string, accountAddrIndex ...AccountAddressIndex) (string, error)
   240  ```
   241  
   242  ImportAccount imports account using mnemonic
   243  
   244  <a name="ListStorageAccounts"></a>
   245  ## func [ListStorageAccounts](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/keystore.go#L62>)
   246  
   247  ```go
   248  func ListStorageAccounts(homedir string) []common.Address
   249  ```
   250  
   251  ListStorageAccounts List available accounts
   252  
   253  <a name="AccountAddressIndex"></a>
   254  ## type [AccountAddressIndex](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/keystore.go#L128-L132>)
   255  
   256  
   257  
   258  ```go
   259  type AccountAddressIndex struct {
   260      AccountIndex int
   261      AddressIndex int
   262      Bip32        bool
   263  }
   264  ```
   265  
   266  <a name="AlchemyGasEstimationRequest"></a>
   267  ## type [AlchemyGasEstimationRequest](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge_helper.go#L14-L19>)
   268  
   269  AlchemyGasEstimationRequest describes request used for Alchemy enhanced JSON\-RPC API.
   270  
   271  ```go
   272  type AlchemyGasEstimationRequest struct {
   273      From  string `json:"from"`
   274      To    string `json:"to"`
   275      Value string `json:"value"`
   276      Data  string `json:"data"`
   277  }
   278  ```
   279  
   280  <a name="AuthorizerNode"></a>
   281  ## type [AuthorizerNode](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/rest.go#L41-L44>)
   282  
   283  
   284  
   285  ```go
   286  type AuthorizerNode struct {
   287      ID  string `json:"id"`
   288      URL string `json:"url"`
   289  }
   290  ```
   291  
   292  <a name="AuthorizerNodesResponse"></a>
   293  ## type [AuthorizerNodesResponse](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/rest.go#L37-L39>)
   294  
   295  
   296  
   297  ```go
   298  type AuthorizerNodesResponse struct {
   299      Nodes []*AuthorizerNode `json:"nodes"`
   300  }
   301  ```
   302  
   303  <a name="AuthorizerResponse"></a>
   304  ## type [AuthorizerResponse](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/rest.go#L15-L35>)
   305  
   306  
   307  
   308  ```go
   309  type AuthorizerResponse struct {
   310      AuthorizerID string `json:"id"`
   311      URL          string `json:"url"`
   312  
   313      // Configuration
   314      Fee common.Balance `json:"fee"`
   315  
   316      // Geolocation
   317      Latitude  float64 `json:"latitude"`
   318      Longitude float64 `json:"longitude"`
   319  
   320      // Stats
   321      LastHealthCheck int64 `json:"last_health_check"`
   322  
   323      // stake_pool_settings
   324      DelegateWallet string         `json:"delegate_wallet"`
   325      MinStake       common.Balance `json:"min_stake"`
   326      MaxStake       common.Balance `json:"max_stake"`
   327      NumDelegates   int            `json:"num_delegates"`
   328      ServiceCharge  float64        `json:"service_charge"`
   329  }
   330  ```
   331  
   332  <a name="BancorTokenDetails"></a>
   333  ## type [BancorTokenDetails](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge_helper.go#L34-L43>)
   334  
   335  BancorTokenDetails describes Bancor ZCN zcntoken pool details
   336  
   337  ```go
   338  type BancorTokenDetails struct {
   339      Data struct {
   340          Rate struct {
   341              ETH  string `json:"eth"`
   342              BNT  string `json:"bnt"`
   343              USDC string `json:"usd"`
   344              EURC string `json:"eur"`
   345          }
   346      } `json:"data"`
   347  }
   348  ```
   349  
   350  <a name="BridgeClient"></a>
   351  ## type [BridgeClient](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/config.go#L49-L67>)
   352  
   353  
   354  
   355  ```go
   356  type BridgeClient struct {
   357      BridgeAddress,
   358      TokenAddress,
   359      AuthorizersAddress,
   360      UniswapAddress,
   361      NFTConfigAddress,
   362      EthereumAddress,
   363      EthereumNodeURL,
   364      Password string
   365  
   366      BancorAPIURL string
   367  
   368      ConsensusThreshold float64
   369      GasLimit           uint64
   370      // contains filtered or unexported fields
   371  }
   372  ```
   373  
   374  <a name="NewBridgeClient"></a>
   375  ### func [NewBridgeClient](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/config.go#L70-L82>)
   376  
   377  ```go
   378  func NewBridgeClient(bridgeAddress, tokenAddress, authorizersAddress, uniswapAddress, ethereumAddress, ethereumNodeURL, password string, gasLimit uint64, consensusThreshold float64, ethereumClient EthereumClient, transactionProvider transaction.TransactionProvider, keyStore KeyStore) *BridgeClient
   379  ```
   380  
   381  NewBridgeClient creates BridgeClient with the given parameters.
   382  
   383  <a name="SetupBridgeClientSDK"></a>
   384  ### func [SetupBridgeClientSDK](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/config.go#L123>)
   385  
   386  ```go
   387  func SetupBridgeClientSDK(cfg *BridgeSDKConfig) *BridgeClient
   388  ```
   389  
   390  SetupBridgeClientSDK initializes new bridge client. Meant to be used from standalone application with 0chain SDK initialized.
   391  
   392  <a name="BridgeClient.AddEthereumAuthorizer"></a>
   393  ### func \(\*BridgeClient\) [AddEthereumAuthorizer](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L118>)
   394  
   395  ```go
   396  func (b *BridgeClient) AddEthereumAuthorizer(ctx context.Context, address common.Address) (*types.Transaction, error)
   397  ```
   398  
   399  AddEthereumAuthorizer Adds authorizer to Ethereum bridge. Only contract deployer can call this method
   400  
   401  <a name="BridgeClient.AddEthereumAuthorizers"></a>
   402  ### func \(\*BridgeClient\) [AddEthereumAuthorizers](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L149>)
   403  
   404  ```go
   405  func (b *BridgeClient) AddEthereumAuthorizers(configDir string)
   406  ```
   407  
   408  
   409  
   410  <a name="BridgeClient.ApproveUSDCSwap"></a>
   411  ### func \(\*BridgeClient\) [ApproveUSDCSwap](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L668>)
   412  
   413  ```go
   414  func (b *BridgeClient) ApproveUSDCSwap(ctx context.Context, source uint64) (*types.Transaction, error)
   415  ```
   416  
   417  ApproveUSDCSwap provides opportunity to approve swap operation for ERC20 tokens
   418  
   419  <a name="BridgeClient.BurnWZCN"></a>
   420  ### func \(\*BridgeClient\) [BurnWZCN](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L551>)
   421  
   422  ```go
   423  func (b *BridgeClient) BurnWZCN(ctx context.Context, amountTokens uint64) (*types.Transaction, error)
   424  ```
   425  
   426  BurnWZCN Burns WZCN tokens on behalf of the 0ZCN client amountTokens \- ZCN tokens clientID \- 0ZCN client ERC20 signature: "burn\(uint256,bytes\)"
   427  
   428  <a name="BridgeClient.BurnZCN"></a>
   429  ### func \(\*BridgeClient\) [BurnZCN](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L621>)
   430  
   431  ```go
   432  func (b *BridgeClient) BurnZCN(ctx context.Context, amount, txnfee uint64) (transaction.Transaction, error)
   433  ```
   434  
   435  BurnZCN burns ZCN tokens before conversion from ZCN to WZCN as a first step
   436  
   437  <a name="BridgeClient.CreateSignedTransactionFromKeyStore"></a>
   438  ### func \(\*BridgeClient\) [CreateSignedTransactionFromKeyStore](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L70>)
   439  
   440  ```go
   441  func (b *BridgeClient) CreateSignedTransactionFromKeyStore(client EthereumClient, gasLimitUnits uint64) *bind.TransactOpts
   442  ```
   443  
   444  
   445  
   446  <a name="BridgeClient.EstimateBurnWZCNGasAmount"></a>
   447  ### func \(\*BridgeClient\) [EstimateBurnWZCNGasAmount](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L1013>)
   448  
   449  ```go
   450  func (b *BridgeClient) EstimateBurnWZCNGasAmount(ctx context.Context, from, to, amountTokens string) (float64, error)
   451  ```
   452  
   453  EstimateBurnWZCNGasAmount performs gas amount estimation for the given wzcn burn transaction.
   454  
   455  <a name="BridgeClient.EstimateGasPrice"></a>
   456  ### func \(\*BridgeClient\) [EstimateGasPrice](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L1111>)
   457  
   458  ```go
   459  func (b *BridgeClient) EstimateGasPrice(ctx context.Context) (float64, error)
   460  ```
   461  
   462  EstimateGasPrice performs gas estimation for the given transaction.
   463  
   464  <a name="BridgeClient.EstimateMintWZCNGasAmount"></a>
   465  ### func \(\*BridgeClient\) [EstimateMintWZCNGasAmount](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L1043-L1044>)
   466  
   467  ```go
   468  func (b *BridgeClient) EstimateMintWZCNGasAmount(ctx context.Context, from, to, zcnTransactionRaw, amountToken string, nonceRaw int64, signaturesRaw [][]byte) (float64, error)
   469  ```
   470  
   471  EstimateMintWZCNGasAmount performs gas amount estimation for the given wzcn mint transaction.
   472  
   473  <a name="BridgeClient.GetETHSwapAmount"></a>
   474  ### func \(\*BridgeClient\) [GetETHSwapAmount](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L701>)
   475  
   476  ```go
   477  func (b *BridgeClient) GetETHSwapAmount(ctx context.Context, source uint64) (*big.Int, error)
   478  ```
   479  
   480  GetETHSwapAmount retrieves ETH swap amount from the given source.
   481  
   482  <a name="BridgeClient.GetTokenBalance"></a>
   483  ### func \(\*BridgeClient\) [GetTokenBalance](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L393>)
   484  
   485  ```go
   486  func (b *BridgeClient) GetTokenBalance() (*big.Int, error)
   487  ```
   488  
   489  GetTokenBalance returns balance of the current client for the zcntoken address
   490  
   491  <a name="BridgeClient.GetUserNonceMinted"></a>
   492  ### func \(\*BridgeClient\) [GetUserNonceMinted](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L444>)
   493  
   494  ```go
   495  func (b *BridgeClient) GetUserNonceMinted(ctx context.Context, rawEthereumAddress string) (*big.Int, error)
   496  ```
   497  
   498  GetUserNonceMinted Returns nonce for a specified Ethereum address
   499  
   500  <a name="BridgeClient.IncreaseBurnerAllowance"></a>
   501  ### func \(\*BridgeClient\) [IncreaseBurnerAllowance](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L344>)
   502  
   503  ```go
   504  func (b *BridgeClient) IncreaseBurnerAllowance(ctx context.Context, allowanceAmount uint64) (*types.Transaction, error)
   505  ```
   506  
   507  IncreaseBurnerAllowance Increases allowance for bridge contract address to transfer ERC\-20 tokens on behalf of the zcntoken owner to the Burn TokenPool During the burn the script transfers amount from zcntoken owner to the bridge burn zcntoken pool Example: owner wants to burn some amount. The contract will transfer some amount from owner address to the pool. So the owner must call IncreaseAllowance of the WZCN zcntoken with 2 parameters: spender address which is the bridge contract and amount to be burned \(transferred\) Token signature: "increaseApproval\(address,uint256\)"
   508  
   509  <a name="BridgeClient.MintWZCN"></a>
   510  ### func \(\*BridgeClient\) [MintWZCN](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L490>)
   511  
   512  ```go
   513  func (b *BridgeClient) MintWZCN(ctx context.Context, payload *ethereum.MintPayload) (*types.Transaction, error)
   514  ```
   515  
   516  MintWZCN Mint ZCN tokens on behalf of the 0ZCN client payload: received from authorizers
   517  
   518  <a name="BridgeClient.MintZCN"></a>
   519  ### func \(\*BridgeClient\) [MintZCN](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L589>)
   520  
   521  ```go
   522  func (b *BridgeClient) MintZCN(ctx context.Context, payload *zcnsc.MintPayload) (string, error)
   523  ```
   524  
   525  MintZCN mints ZCN tokens after receiving proof\-of\-burn of WZCN tokens
   526  
   527  <a name="BridgeClient.NFTConfigGetAddress"></a>
   528  ### func \(\*BridgeClient\) [NFTConfigGetAddress](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L315>)
   529  
   530  ```go
   531  func (b *BridgeClient) NFTConfigGetAddress(ctx context.Context, key string) (string, string, error)
   532  ```
   533  
   534  
   535  
   536  <a name="BridgeClient.NFTConfigGetUint256"></a>
   537  ### func \(\*BridgeClient\) [NFTConfigGetUint256](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L270>)
   538  
   539  ```go
   540  func (b *BridgeClient) NFTConfigGetUint256(ctx context.Context, key string, keyParam ...int64) (string, int64, error)
   541  ```
   542  
   543  
   544  
   545  <a name="BridgeClient.NFTConfigSetAddress"></a>
   546  ### func \(\*BridgeClient\) [NFTConfigSetAddress](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L292>)
   547  
   548  ```go
   549  func (b *BridgeClient) NFTConfigSetAddress(ctx context.Context, key, address string) (*types.Transaction, error)
   550  ```
   551  
   552  
   553  
   554  <a name="BridgeClient.NFTConfigSetUint256"></a>
   555  ### func \(\*BridgeClient\) [NFTConfigSetUint256](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L244>)
   556  
   557  ```go
   558  func (b *BridgeClient) NFTConfigSetUint256(ctx context.Context, key string, value int64) (*types.Transaction, error)
   559  ```
   560  
   561  NFTConfigSetUint256 call setUint256 method of NFTConfig contract
   562  
   563  <a name="BridgeClient.NFTConfigSetUint256Raw"></a>
   564  ### func \(\*BridgeClient\) [NFTConfigSetUint256Raw](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L249>)
   565  
   566  ```go
   567  func (b *BridgeClient) NFTConfigSetUint256Raw(ctx context.Context, key common.Hash, value int64) (*types.Transaction, error)
   568  ```
   569  
   570  
   571  
   572  <a name="BridgeClient.QueryEthereumBurnEvents"></a>
   573  ### func \(\*BridgeClient\) [QueryEthereumBurnEvents](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizers_query.go#L112>)
   574  
   575  ```go
   576  func (b *BridgeClient) QueryEthereumBurnEvents(startNonce string) ([]*ethereum.BurnEvent, error)
   577  ```
   578  
   579  QueryEthereumBurnEvents gets ethereum burn events
   580  
   581  <a name="BridgeClient.QueryEthereumMintPayload"></a>
   582  ### func \(\*BridgeClient\) [QueryEthereumMintPayload](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizers_query.go#L50>)
   583  
   584  ```go
   585  func (b *BridgeClient) QueryEthereumMintPayload(zchainBurnHash string) (*ethereum.MintPayload, error)
   586  ```
   587  
   588  QueryEthereumMintPayload gets burn ticket and creates mint payload to be minted in the Ethereum chain zchainBurnHash \- Ethereum burn transaction hash
   589  
   590  <a name="BridgeClient.QueryZChainMintPayload"></a>
   591  ### func \(\*BridgeClient\) [QueryZChainMintPayload](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizers_query.go#L169>)
   592  
   593  ```go
   594  func (b *BridgeClient) QueryZChainMintPayload(ethBurnHash string) (*zcnsc.MintPayload, error)
   595  ```
   596  
   597  QueryZChainMintPayload gets burn ticket and creates mint payload to be minted in the ZChain ethBurnHash \- Ethereum burn transaction hash
   598  
   599  <a name="BridgeClient.RemoveEthereumAuthorizer"></a>
   600  ### func \(\*BridgeClient\) [RemoveEthereumAuthorizer](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L134>)
   601  
   602  ```go
   603  func (b *BridgeClient) RemoveEthereumAuthorizer(ctx context.Context, address common.Address) (*types.Transaction, error)
   604  ```
   605  
   606  RemoveEthereumAuthorizer Removes authorizer from Ethereum bridge. Only contract deployer can call this method
   607  
   608  <a name="BridgeClient.ResetUserNonceMinted"></a>
   609  ### func \(\*BridgeClient\) [ResetUserNonceMinted](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L467>)
   610  
   611  ```go
   612  func (b *BridgeClient) ResetUserNonceMinted(ctx context.Context) (*types.Transaction, error)
   613  ```
   614  
   615  ResetUserNonceMinted Resets nonce for a specified Ethereum address
   616  
   617  <a name="BridgeClient.SignWithEthereumChain"></a>
   618  ### func \(\*BridgeClient\) [SignWithEthereumChain](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L419>)
   619  
   620  ```go
   621  func (b *BridgeClient) SignWithEthereumChain(message string) ([]byte, error)
   622  ```
   623  
   624  SignWithEthereumChain signs the digest with Ethereum chain signer taking key from the current user key storage
   625  
   626  <a name="BridgeClient.SwapETH"></a>
   627  ### func \(\*BridgeClient\) [SwapETH](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L739>)
   628  
   629  ```go
   630  func (b *BridgeClient) SwapETH(ctx context.Context, source uint64, target uint64) (*types.Transaction, error)
   631  ```
   632  
   633  SwapETH provides opportunity to perform zcn token swap operation using ETH as source token.
   634  
   635  <a name="BridgeClient.SwapUSDC"></a>
   636  ### func \(\*BridgeClient\) [SwapUSDC](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L768>)
   637  
   638  ```go
   639  func (b *BridgeClient) SwapUSDC(ctx context.Context, source uint64, target uint64) (*types.Transaction, error)
   640  ```
   641  
   642  SwapUSDC provides opportunity to perform zcn token swap operation using USDC as source token.
   643  
   644  <a name="BridgeClient.VerifyZCNTransaction"></a>
   645  ### func \(\*BridgeClient\) [VerifyZCNTransaction](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge.go#L414>)
   646  
   647  ```go
   648  func (b *BridgeClient) VerifyZCNTransaction(ctx context.Context, hash string) (transaction.Transaction, error)
   649  ```
   650  
   651  VerifyZCNTransaction verifies 0CHain transaction
   652  
   653  <a name="BridgeSDKConfig"></a>
   654  ## type [BridgeSDKConfig](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/config.go#L34-L40>)
   655  
   656  
   657  
   658  ```go
   659  type BridgeSDKConfig struct {
   660      LogLevel        *string
   661      LogPath         *string
   662      ConfigChainFile *string
   663      ConfigDir       *string
   664      Development     *bool
   665  }
   666  ```
   667  
   668  <a name="DetailedAccount"></a>
   669  ## type [DetailedAccount](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/keystore.go#L16-L20>)
   670  
   671  DetailedAccount describes detailed account
   672  
   673  ```go
   674  type DetailedAccount struct {
   675      EthereumAddress,
   676      PublicKey,
   677      PrivateKey accounts.Account
   678  }
   679  ```
   680  
   681  <a name="EthereumBurnEvents"></a>
   682  ## type [EthereumBurnEvents](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L28-L35>)
   683  
   684  EthereumBurnEvents represents burn events returned by authorizers
   685  
   686  ```go
   687  type EthereumBurnEvents struct {
   688      AuthorizerID string `json:"authorizer_id,omitempty"`
   689      BurnEvents   []struct {
   690          Nonce           int64  `json:"nonce"`
   691          Amount          int64  `json:"amount"`
   692          TransactionHash string `json:"transaction_hash"`
   693      }   `json:"burn_events"`
   694  }
   695  ```
   696  
   697  <a name="EthereumBurnEvents.Data"></a>
   698  ### func \(\*EthereumBurnEvents\) [Data](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L106>)
   699  
   700  ```go
   701  func (r *EthereumBurnEvents) Data() interface{}
   702  ```
   703  
   704  
   705  
   706  <a name="EthereumBurnEvents.Error"></a>
   707  ### func \(\*EthereumBurnEvents\) [Error](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L102>)
   708  
   709  ```go
   710  func (r *EthereumBurnEvents) Error() error
   711  ```
   712  
   713  
   714  
   715  <a name="EthereumBurnEvents.GetAuthorizerID"></a>
   716  ### func \(\*EthereumBurnEvents\) [GetAuthorizerID](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L94>)
   717  
   718  ```go
   719  func (r *EthereumBurnEvents) GetAuthorizerID() string
   720  ```
   721  
   722  
   723  
   724  <a name="EthereumBurnEvents.SetAuthorizerID"></a>
   725  ### func \(\*EthereumBurnEvents\) [SetAuthorizerID](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L98>)
   726  
   727  ```go
   728  func (r *EthereumBurnEvents) SetAuthorizerID(id string)
   729  ```
   730  
   731  
   732  
   733  <a name="EthereumClient"></a>
   734  ## type [EthereumClient](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/config.go#L43-L47>)
   735  
   736  EthereumClient describes Ethereum JSON\-RPC client generealized interface
   737  
   738  ```go
   739  type EthereumClient interface {
   740      bind.ContractBackend
   741  
   742      ChainID(ctx context.Context) (*big.Int, error)
   743  }
   744  ```
   745  
   746  <a name="GasEstimationRequest"></a>
   747  ## type [GasEstimationRequest](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge_helper.go#L22-L26>)
   748  
   749  GasEstimationRequest describes request used for Alchemy enhanced JSON\-RPC API.
   750  
   751  ```go
   752  type GasEstimationRequest struct {
   753      From  string `json:"from"`
   754      To    string `json:"to"`
   755      Value string `json:"value"`
   756  }
   757  ```
   758  
   759  <a name="GasPriceEstimationResult"></a>
   760  ## type [GasPriceEstimationResult](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/bridge_helper.go#L29-L31>)
   761  
   762  GasPriceEstimationResult represents result of the gas price estimation operation execution.
   763  
   764  ```go
   765  type GasPriceEstimationResult struct {
   766      Value float64 `json:"value"`
   767  }
   768  ```
   769  
   770  <a name="JobError"></a>
   771  ## type [JobError](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L23-L25>)
   772  
   773  JobError result of internal request wrapped in authorizer job
   774  
   775  ```go
   776  type JobError struct {
   777      // contains filtered or unexported fields
   778  }
   779  ```
   780  
   781  <a name="JobError.MarshalJSON"></a>
   782  ### func \(\*JobError\) [MarshalJSON](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L62>)
   783  
   784  ```go
   785  func (e *JobError) MarshalJSON() ([]byte, error)
   786  ```
   787  
   788  
   789  
   790  <a name="JobError.UnmarshalJSON"></a>
   791  ### func \(\*JobError\) [UnmarshalJSON](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L57>)
   792  
   793  ```go
   794  func (e *JobError) UnmarshalJSON(buf []byte) error
   795  ```
   796  
   797  
   798  
   799  <a name="JobResult"></a>
   800  ## type [JobResult](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L12-L21>)
   801  
   802  JobResult = Authorizer task result, it wraps actual result of the query inside authorizer
   803  
   804  ```go
   805  type JobResult interface {
   806      // Error = Status of Authorizer job on authorizer server
   807      Error() error
   808      // Data returns the actual result
   809      Data() interface{}
   810      // SetAuthorizerID Assigns authorizer ID to the Job
   811      SetAuthorizerID(ID string)
   812      // GetAuthorizerID returns authorizer ID
   813      GetAuthorizerID() string
   814  }
   815  ```
   816  
   817  <a name="JobStatus"></a>
   818  ## type [JobStatus](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L10>)
   819  
   820  JobStatus = Ethereum transaction status
   821  
   822  ```go
   823  type JobStatus uint
   824  ```
   825  
   826  <a name="KeyStore"></a>
   827  ## type [KeyStore](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/keystore.go#L23-L28>)
   828  
   829  KeyStore is a wrapper, which exposes Ethereum KeyStore methods used by DEX bridge.
   830  
   831  ```go
   832  type KeyStore interface {
   833      Find(accounts.Account) (accounts.Account, error)
   834      TimedUnlock(accounts.Account, string, time.Duration) error
   835      SignHash(account accounts.Account, hash []byte) ([]byte, error)
   836      GetEthereumKeyStore() *keystore.KeyStore
   837  }
   838  ```
   839  
   840  <a name="NewKeyStore"></a>
   841  ### func [NewKeyStore](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/keystore.go#L35>)
   842  
   843  ```go
   844  func NewKeyStore(path string) KeyStore
   845  ```
   846  
   847  NewKeyStore creates new KeyStore wrapper instance
   848  
   849  <a name="ProofEthereumBurn"></a>
   850  ## type [ProofEthereumBurn](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L38-L44>)
   851  
   852  ProofEthereumBurn Authorizer returns this type for Ethereum transaction
   853  
   854  ```go
   855  type ProofEthereumBurn struct {
   856      TxnID             string `json:"ethereum_txn_id"`
   857      Nonce             int64  `json:"nonce"`
   858      Amount            int64  `json:"amount"`
   859      ReceivingClientID string `json:"receiving_client_id"` // 0ZCN address
   860      Signature         string `json:"signature"`
   861  }
   862  ```
   863  
   864  <a name="ProofZCNBurn"></a>
   865  ## type [ProofZCNBurn](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L47-L54>)
   866  
   867  ProofZCNBurn Authorizer returns this type for ZCN transaction
   868  
   869  ```go
   870  type ProofZCNBurn struct {
   871      AuthorizerID string `json:"authorizer_id,omitempty"`
   872      TxnID        string `json:"0chain_txn_id"`
   873      To           string `json:"to"`
   874      Nonce        int64  `json:"nonce"`
   875      Amount       int64  `json:"amount"`
   876      Signature    []byte `json:"signature"`
   877  }
   878  ```
   879  
   880  <a name="ProofZCNBurn.Data"></a>
   881  ### func \(\*ProofZCNBurn\) [Data](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L122>)
   882  
   883  ```go
   884  func (r *ProofZCNBurn) Data() interface{}
   885  ```
   886  
   887  
   888  
   889  <a name="ProofZCNBurn.Error"></a>
   890  ### func \(\*ProofZCNBurn\) [Error](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L118>)
   891  
   892  ```go
   893  func (r *ProofZCNBurn) Error() error
   894  ```
   895  
   896  
   897  
   898  <a name="ProofZCNBurn.GetAuthorizerID"></a>
   899  ### func \(\*ProofZCNBurn\) [GetAuthorizerID](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L110>)
   900  
   901  ```go
   902  func (r *ProofZCNBurn) GetAuthorizerID() string
   903  ```
   904  
   905  
   906  
   907  <a name="ProofZCNBurn.SetAuthorizerID"></a>
   908  ### func \(\*ProofZCNBurn\) [SetAuthorizerID](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L114>)
   909  
   910  ```go
   911  func (r *ProofZCNBurn) SetAuthorizerID(id string)
   912  ```
   913  
   914  
   915  
   916  <a name="WZCNBurnEvent"></a>
   917  ## type [WZCNBurnEvent](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L67-L76>)
   918  
   919  WZCNBurnEvent returned from burn ticket handler of: /v1/ether/burnticket/get
   920  
   921  ```go
   922  type WZCNBurnEvent struct {
   923      // 	AuthorizerID Authorizer ID
   924      AuthorizerID string `json:"authorizer_id,omitempty"`
   925      // BurnTicket Returns burn ticket
   926      BurnTicket *ProofEthereumBurn `json:"ticket,omitempty"`
   927      // Err gives error of job on server side
   928      Err *JobError `json:"err,omitempty"`
   929      // Status gives job status on server side (authoriser)
   930      Status JobStatus `json:"status,omitempty"`
   931  }
   932  ```
   933  
   934  <a name="WZCNBurnEvent.Data"></a>
   935  ### func \(\*WZCNBurnEvent\) [Data](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L90>)
   936  
   937  ```go
   938  func (r *WZCNBurnEvent) Data() interface{}
   939  ```
   940  
   941  
   942  
   943  <a name="WZCNBurnEvent.Error"></a>
   944  ### func \(\*WZCNBurnEvent\) [Error](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L86>)
   945  
   946  ```go
   947  func (r *WZCNBurnEvent) Error() error
   948  ```
   949  
   950  
   951  
   952  <a name="WZCNBurnEvent.GetAuthorizerID"></a>
   953  ### func \(\*WZCNBurnEvent\) [GetAuthorizerID](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L78>)
   954  
   955  ```go
   956  func (r *WZCNBurnEvent) GetAuthorizerID() string
   957  ```
   958  
   959  
   960  
   961  <a name="WZCNBurnEvent.SetAuthorizerID"></a>
   962  ### func \(\*WZCNBurnEvent\) [SetAuthorizerID](<https://github.com/0chain/gosdk/blob/doc/initial/zcnbridge/authorizer_response.go#L82>)
   963  
   964  ```go
   965  func (r *WZCNBurnEvent) SetAuthorizerID(id string)
   966  ```
   967  
   968  
   969  
   970  Generated by [gomarkdoc](<https://github.com/princjef/gomarkdoc>)