wasmsdk

0chain/wasmsdk

The 0chain wasm SDK is written in Go programming language, and released with WebAssembly binary format

NOTE please use try{await zcn.sdk.[method];}catch(err){...} to handle any error from wasm sdk in js

ZCN global js methods

zcn.setWallet

set bls.SecretKey on runtime env(browser,nodejs...etc), and call zcn.sdk.setWallet to set wallet on go.

Input:

bls, clientID, sk, pk, mnemonic string

Output:

N/A

ZCN methods

zcn.sdk.init

init wasm sdk

Input:

chainID, blockWorker, signatureScheme string, minConfirmation, minSubmit, confirmationChainLength int,zboxHost, zboxAppType string

Output:

N/A

zcn.sdk.hideLogs

hide interactive sdk logs. default is hidden.

Input:

N/A

Output:

N/A

zcn.sdk.showLogs

show interactive sdk logs. default is hidden.

Input:

N/A

Output:

N/A

zcn.sdk.getUSDRate

get USD rate by token symbol(eg zcn, eth)

Input:

symbol string

Output:

float64

zcn.sdk.createThumbnail

create thumbnail of an image buffer

Input:

buf []byte, width,height int

Output:

[]byte

zcn.sdk.isWalletID

valid wallet id

Input:

clientID string

Output:

bool

zcn.sdk.setWallet

set wallet on go

Input:

clientID, publicKey, privateKey string

Output:

N/A

zcn.sdk.getPublicEncryptionKey

get public encryption key by mnemonic

Input:

mnemonic string

Output:

string

zcn.sdk.getAllocationBlobbers

get blobbers with filters for creating allocation

Input:

referredBlobberURLs []string,

dataShards, parityShards int, size, expiry int64,
minReadPrice, maxReadPrice, minWritePrice, maxWritePrice int64

Output:

string array

zcn.sdk.createAllocation

create an allocation

Input:

datashards, parityshards int, size,

minReadPrice, maxReadPrice, minWritePrice, maxWritePrice int64, lock int64,preferredBlobberIds []string, setThirdPartyExtendable  bool

Output:

transaction.Transaction

zcn.sdk.listAllocations

list all allocations

Input:

N/A

Output:

sdk.Allocation array

zcn.sdk.getAllocation

get allocation detail

Input:

allocationID string

Output:

sdk.Allocation

zcn.sdk.reloadAllocation

clean cache, and get allocation detail from blockchain

Input:

allocationID string

Output:

sdk.Allocation

zcn.sdk.transferAllocation

changes the owner of an allocation. Only the current owner of the allocation, can change an allocation's ownership.

Input:

allocationId, newOwnerId, newOwnerPublicKey string

Output:

N/A

zcn.sdk.freezeAllocation

freeze allocation so that data can no longer be modified

Input:

allocationId string

Output:

hash: string

zcn.sdk.cancelAllocation

immediately return all remaining tokens from challenge pool back to the allocation's owner and cancels the allocation. If blobbers already got some tokens, the tokens will not be returned. Remaining min lock payment to the blobber will be funded from the allocation's write pools.

Input:

allocationId string

Output:

hash: string

zcn.sdk.updateAllocation

updates allocation settings

Input:

allocationId string, name string,size int64, extend bool,lock int64,setImmutable,addBlobberId, removeBlobberId string, setThirdPartyExtendable bool

Output:

hash: string

zcn.sdk.getAllocationWith

returns allocation from authToken

Input:

authTicket string

Output:

sdk.Allocation

zcn.sdk.getReadPoolInfo

gets information about the read pool for the allocation

Input:

clientID string

Output:

sdk.ReadPool

zcn.sdk.decodeAuthTicket

Input:

ticket string

Output:

recipientPublicKey string, markerStr string, tokensInSAS uint64

zcn.sdk.lockWritePool

locks given number of tokes for given duration in write pool

Input:

allocationId string, tokens uint64, fee uint64

Output:

hash: string

zcn.sdk.lockStakePool

locks given number of tokens on a provider

Input:

providerType uint64, tokens uint64, fee uint64, providerID string,

Output:

hash: string

zcn.sdk.unlockStakePool

unlocks tokens on a provider

Input:

providerType uint64, fee uint64, providerID string,

Output:

returns time where the tokens can be unlocked

zcn.sdk.getSkatePoolInfo

get the details of the stakepool associated with provider Input:

providerType int, providerID string

Output:

sdk.StakePoolInfo, err

zcn.sdk.getWalletBalance

get wallet balance

Input:

clientId string

Output:

{zcn:float64, usd: float64}

zcn.sdk.getBlobberIds

convert blobber urls to blobber ids

Input:

blobberUrls []string

Output:

[]string

zcn.sdk.getBlobbers

get blobbers from the network

Input:

Output:

array of sdk.Blobber

zcn.sdk.createReadPool

create readpool in storage SC if the pool is missing.

Input:

N/A

Output:

string

zcn.sdk.executeSmartContract

send raw SmartContract transaction, and verify result

Input:

address, methodName, input string, value uint64

Output:

transaction.Transaction

zcn.sdk.faucet

faucet SmartContract

Input:

methodName, input string, token float64

Output:

transaction.Transaction

Blobber methods

zcn.sdk.getLookupHash

get lookup hash by allocation id and path

Input:

allocationID string, path string

Output:

string

zcn.sdk.delete

delete remote file from blobbers

Input:

allocationID, remotePath string

Output:

{commandSuccess:bool,error:string}

zcn.sdk.rename

rename a file existing already on dStorage. Only the allocation's owner can rename a file.

Input:

allocationID, remotePath, destName string

Output:

{commandSuccess:bool, error:string}

zcn.sdk.copy

copy file to another folder path on blobbers Input:

allocationID, remotePath, destPath string

Output:

{commandSuccess:bool, error:string}

zcn.sdk.move

move file to another remote folder path on dStorage. Only the owner of the allocation can copy an object.

Input:

allocationID, remotePath, destPath string

Output:

{commandSuccess:bool, error:string}

zcn.sdk.share

generate an authtoken that provides authorization to the holder to the specified file on the remotepath.

Input:

allocationID, remotePath, clientID, encryptionPublicKey string, expiration int, revoke bool,availableAfter int

Output:

string

zcn.sdk.download

download your own or a shared file.

Input:

allocationID, remotePath, authTicket, lookupHash string, downloadThumbnailOnly bool, numBlocks int,callbackFuncName string

Output:

{commandSuccess:bool, fileName:string,url:string, error:string}

Example

{
  "commandSuccess": true,
  "fileName": "scan3.png",
  "url": "blob:http://localhost:3000/42157751-1d33-4448-88c8-7d7e2ad887a5"
}

zcn.sdk.downloadBlocks

download blocks of a file

Input:

allocationID, remotePath, authTicket, lookupHash string, numBlocks int, startBlockNumber, endBlockNumber int64, callbackFuncName string

Output:

{[]byte, error:string}

### zcn.sdk.upload

upload file

**Input**:

> allocationID, remotePath string, fileBytes, thumbnailBytes []byte, encrypt bool, isUpdate, isRepair bool, numBlocks int

**Output**:

> {commandSuccess:bool, error:string}

### zcn.sdk.multiUpload

bulk upload files with json options

**Input**:

> jsonBulkUploadOptions string:
> BulkOption: { allocationId,remotePath,readChunkFuncName, fileSize, thumbnailBytes, encrypt,isUpdate,isRepair,numBlocks,callbackFuncName:callbackFuncName }

**Output**:

> [ {remotePath:"/d.png", success:true,error:""} ]

### zcn.sdk.play

play stream video files

**Input**:

> allocationID, remotePath, authTicket, lookupHash string, isLive bool

**Output**:

> N/A

### zcn.sdk.stop

stop current play

**Input**:

> N/A

**Output**:

> N/A

### zcn.sdk.listObjects

list files with allocationID and remotePath

**Input**:

> allocationId string, remotePath string

**Output**:

> sdk.ListResult

### zcn.sdk.createDir

create folder from blobbers

**Input**:

> allocationID, remotePath string

**Output**:

> N/A

### zcn.sdk.getFileStats

**Input**:

> allocationID string, remotePath string

**Output**:

> string: []sdk.FileStats

### zcn.sdk.updateBlobberSettings

**Input**:

> blobberSettingsJson string
> blobberSettings: fetch blobber settings by calling /getBlobber on sharder and modify them (see demo for usage)
> **Output**:
> string: resp

### zcn.sdk.getAllocationMinLock

**Input**:

> datashards int, parityshards int, size int, maxreadPrice int, maxwritePrice int

**Output**:

> int: min_lock_demand


### zcn.sdk.getUpdateAllocationMinLock

**Input**:

> allocationID string, size int, extend bool, addBlobberId string, removeBlobberId string

**Output**:

> int: min_lock_demand

### zcn.sdk.getRemoteFileMap

takes allocation ID and returns all the files/directories in allocation as JSON
**Input**:

> allocationID string

**Output**:

> []\*fileResp

## Swap methods

### zcn.sdk.setSwapWallets

**Input**:

> usdcTokenAddress, bancorAddress, zcnTokenAddress, ethWalletMnemonic string

**Output**:

> N/A

### zcn.sdk.swapToken

**Input**:

> swapAmount int64, tokenSource string

**Output**:

> string: txnHash

## 0Box API methods

### zcn.sdk.getCsrfToken

get a fresh CSRF token

**Input**:

> N/A

**Output**:

> string

### zcn.sdk.createJwtSession

create a jwt session with phone number
**Input**:

> phoneNumber string

**Output**:

> sessionID int64

### zcn.sdk.createJwtToken

create a jwt token with jwt session id and otp
**Input**:

> phoneNumber string, jwtSessionID int64, otp string

**Output**:

> token string

### zcn.sdk.refreshJwtToken

refresh jwt token
**Input**:

> phoneNumber string, token string

**Output**:

> token string