@biut-block/biutjs-datahandler v1.0.43
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SECDataHandler
This package uses leveldb to store and handle data from SEC blockchain, this repository includes operations to four databases:
- Token Block Chain Database
- Transaction Block Chain Database
- Account Database
- Product Database
The databases contain following methods:
TokenBlockChainDB
Kind: global class
- TokenBlockChainDB
- new TokenBlockChainDB(config)
- .writeTokenBlockToDB(tokenData, callback) ⇒ None
- .isTokenBlockChainDBEmpty(callback) ⇒ None
- .getTokenBlockChainDB(callback) ⇒ None
- .getTokenBlockFromDB(blockHashArray, callback) ⇒ None
- .getTokenChain(minBlockNumber, maxBlockNumber, callback) ⇒ None
- .delBlocksFromHeight(blockHeight, callback) ⇒ None
- .addUpdateBlock(pos, blockArray, callback) ⇒ None
- .findTxForUser(userAddress, callback) ⇒ None
- .findTx(userAddress, callback) ⇒ None
TxBlockChainDB
Kind: global class
- TxBlockChainDB
- new TxBlockChainDB(config)
- .writeTxBlockToDB(txData, callback) ⇒ None
- .isTxBlockChainDBEmpty(callback) ⇒ None
- .getTxBlockChainDB(callback) ⇒ None
- .getTxBlockFromDB(blockHashArray, callback) ⇒ None
- .getTxChain(minBlockNumber, maxBlockNumber, callback) ⇒ None
- .delBlocksFromHeight(blockHeight, callback) ⇒ None
- .addUpdateBlock(pos, blockArray, callback) ⇒ None
- .findTxForUser(userAddress, callback) ⇒ None
AccountDB
Kind: global class
ProductDB
Kind: global class
TokenBlockChainDB Methods
new TokenBlockChainDB(config)
| Param | Type | Description |
|---|---|---|
| config | Object | contains the relative path for storing database |
tokenBlockChainDB.writeTokenBlockToDB(tokenData, callback) ⇒ None
Write single token block or full token chain data to database
Kind: instance method of TokenBlockChainDB
| Param | Type | Description |
|---|---|---|
| tokenData | Array, Object | single token block data or full token block chain data |
| callback | function | callback function, returns error if exist |
tokenBlockChainDB.isTokenBlockChainDBEmpty(callback) ⇒ None
Check whether the token block chain database is empty
Kind: instance method of TokenBlockChainDB
| Param | Type | Description |
|---|---|---|
| callback | function | callback function, callback arguments (err, emptyFlag) |
tokenBlockChainDB.getTokenBlockChainDB(callback) ⇒ None
Get all the block datas from token block chain database
Kind: instance method of TokenBlockChainDB
| Param | Type | Description |
|---|---|---|
| callback | function | callback function, callback arguments (err, block object array) |
tokenBlockChainDB.getTokenBlockFromDB(blockHashArray, callback) ⇒ None
Get token blocks according to block hash values
Kind: instance method of TokenBlockChainDB
| Param | Type | Description |
|---|---|---|
| blockHashArray | String, Array | block hash values, string or array format |
| callback | function | callback function, callback arguments (err, block object array) |
tokenBlockChainDB.getTokenChain(minBlockNumber, maxBlockNumber, callback) ⇒ None
Get token block chain data, from number 'minBlockNumber' to number 'maxBlockNumber'
Kind: instance method of TokenBlockChainDB
| Param | Type | Description |
|---|---|---|
| minBlockNumber | Integer | minimum block number |
| maxBlockNumber | Integer | maximum block number |
| callback | function | callback function, callback arguments (err, block object array) |
tokenBlockChainDB.delBlocksFromHeight(blockHeight, callback) ⇒ None
Delete blocks which have a higher height than the input 'blockHeight' argument
Kind: instance method of TokenBlockChainDB
| Param | Type | Description |
|---|---|---|
| blockHeight | Integer | blocks with larger height will be deleted from database |
| callback | function | callback function, callback arguments (err) |
tokenBlockChainDB.addUpdateBlock(pos, blockArray, callback) ⇒ None
Add new blocks from a specific position if the blocks does not exist Update old blocks from a specific position if the blocks already exist
Kind: instance method of TokenBlockChainDB
| Param | Type | Description |
|---|---|---|
| pos | Integer | block add/update starting position |
| blockArray | Array | array of block data(json object) |
| callback | function | callback function, callback arguments (err) |
tokenBlockChainDB.findTxForUser(userAddress, callback) ⇒ None
Find all previous transactions for a user
Kind: instance method of TokenBlockChainDB
| Param | Type | Description |
|---|---|---|
| userAddress | String | user account address |
| callback | function | callback function, callback arguments (txArray, err) |
tokenBlockChainDB.findTx(txHash, callback) ⇒ None
Find a previous transactions for a user by transaction hash
Kind: instance method of TokenBlockChainDB
| Param | Type | Description |
|---|---|---|
| txHash | String | transaction hash |
| callback | function | callback function, callback arguments (txArray, err) |
TxBlockChainDB Methods
new TxBlockChainDB(config)
| Param | Type | Description |
|---|---|---|
| config | Object | contains the relative path for storing database |
txBlockChainDB.writeTxBlockToDB(txData, callback) ⇒ None
Write single tx block or full transaction chain data to database
Kind: instance method of TxBlockChainDB
| Param | Type | Description |
|---|---|---|
| txData | Array, Object | single tx block data or full transaction block chain data |
| callback | function | callback function, returns error if exist |
txBlockChainDB.isTxBlockChainDBEmpty(callback) ⇒ None
Check whether the transaction block chain database is empty
Kind: instance method of TxBlockChainDB
| Param | Type | Description |
|---|---|---|
| callback | function | callback function, callback arguments (err, emptyFlag) |
txBlockChainDB.getTxBlockChainDB(callback) ⇒ None
Get all the block datas from transaction block chain database
Kind: instance method of TxBlockChainDB
| Param | Type | Description |
|---|---|---|
| callback | function | callback function, callback arguments (err, block object array) |
txBlockChainDB.getTxBlockFromDB(blockHashArray, callback) ⇒ None
Get transaction blocks according to block hash values
Kind: instance method of TxBlockChainDB
| Param | Type | Description |
|---|---|---|
| blockHashArray | String, Array | block hash values, string or array format |
| callback | function | callback function, callback arguments (err, block object array) |
txBlockChainDB.getTxChain(minBlockNumber, maxBlockNumber, callback) ⇒ None
Get transaction block chain data, from number 'minBlockNumber' to number 'maxBlockNumber'
Kind: instance method of TxBlockChainDB
| Param | Type | Description |
|---|---|---|
| minBlockNumber | Integer | minimum block number |
| maxBlockNumber | Integer | maximum block number |
| callback | function | callback function, callback arguments (err, block object array) |
txBlockChainDB.delBlocksFromHeight(blockHeight, callback) ⇒ None
Delete blocks which have a higher height than the input 'blockHeight' argument
Kind: instance method of TxBlockChainDB
| Param | Type | Description |
|---|---|---|
| blockHeight | Integer | blocks with larger height will be deleted from database |
| callback | function | callback function, callback arguments (err) |
txBlockChainDB.addUpdateBlock(pos, blockArray, callback) ⇒ None
Add new blocks from a specific position if the blocks does not exist Update old blocks from a specific position if the blocks already exist
Kind: instance method of TxBlockChainDB
| Param | Type | Description |
|---|---|---|
| pos | Integer | block add/update starting position |
| blockArray | Array | array of block data(json object) |
| callback | function | callback function, callback arguments (err) |
TxBlockChainDB.findTxForUser(userAddress, callback) ⇒ None
Find all previous transactions for a user
Kind: instance method of TxBlockChainDB
| Param | Type | Description |
|---|---|---|
| userAddress | String | user account address |
| callback | function | callback function, callback arguments (txArray, err) |
AccountDB Methods
new AccountDB(config)
| Param | Type | Description |
|---|---|---|
| config | Object | contains the relative path for storing database |
accountDB.writeUserInfoToAccountDB(accDataList, callback) ⇒ None
Write user account information to account database
Kind: instance method of AccountDB
| Param | Type | Description |
|---|---|---|
| accDataList | Array, Object | single user account info(json object) or a list of user account info |
| callback | function | callback function, returns error if exist |
accountDB.readUserInfofromAccountDB(accNameList) ⇒ Promise Object
Read user account information from account database, returns a promise object
Kind: instance method of AccountDB
| Param | Type | Description |
|---|---|---|
| accNameList | Array, String | single user account address(string) or a list of user account addresses |
accountDB.isAccountDBEmpty(callback) ⇒ None
Check whether the account database is empty
Kind: instance method of AccountDB
| Param | Type | Description |
|---|---|---|
| callback | function | callback function, callback arguments (err, emptyFlag) |
accountDB.getAccountDB(callback) ⇒ None
Get all the data in account database
Kind: instance method of AccountDB
| Param | Type | Description |
|---|---|---|
| callback | function | callback function, callback arguments (err, block object array) |
accountDB.isAccountInAccountDB(accName, callback) ⇒ None
Check whether an account is in AccountDB
Kind: instance method of AccountDB
| Param | Type | Description |
|---|---|---|
| accName | String | account name |
| callback | function | callback function, callback arguments (err, block object array) |
ProductDB Methods
new ProductDB(config)
| Param | Type | Description |
|---|---|---|
| config | Object | contains the relative path for storing database |
productDB.writeTxBlockToDB(txData, callback) ⇒ None
Write single transaction block or full transaction chain data to product database
Kind: instance method of ProductDB
| Param | Type | Description |
|---|---|---|
| txData | Array, Object | single tx block data or full transaction block chain data |
| callback | function | callback function, returns error if exist |
productDB.isProductDBEmpty(callback) ⇒ None
Check whether the product database is empty
Kind: instance method of ProductDB
| Param | Type | Description |
|---|---|---|
| callback | function | callback function, callback arguments (err, emptyFlag) |
productDB.getProductDB(callback) ⇒ None
Get all the data in product database
Kind: instance method of ProductDB
| Param | Type | Description |
|---|---|---|
| callback | function | callback function, callback arguments (err, block object array) |
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