iExec SDK V2

The iExec SDK is a CLI and a JS library that allows developers to interact with iExec decentralized marketplace in order to run off-chain computations.

Resources

The iExec Dapp Store: https://dapps.iex.ec
The iExec Marketplace: https://market.iex.ec
The iExec Explorer: https://explorer.iex.ec
The iExec Pools registry: https://pools.iex.ec
The RLC faucet: https://faucet.iex.ec
iExec main documentation: https://docs.iex.ec
The iExec JS smart contracts client lib to interact with iExec smart contracts (without the SDK)
The iExec JS client lib to interact with iExec server (without the SDK)
iExec dapps registry, to apply for Dapp Store listing

Install

All three major OS are supported (linux, OSX, windows).

Using Nodejs

Requirements: and Git.

npm -g install iexec # install the cli
iexec --version
iexec --help

Using Docker

Requirements: Docker.

# For Linux users
echo 'alias iexec='"'"'docker run -e DEBUG=$DEBUG --interactive --tty --rm -v /tmp:/tmp -v $(pwd):/iexec-project -w /iexec-project iexechub/iexec-sdk'"'"'' >> ~/.bashrc && source ~/.bashrc
# For Mac OSX users
echo 'alias iexec='"'"'docker run -e DEBUG=$DEBUG --interactive --tty --rm -v /tmp:/tmp -v $(pwd):/iexec-project -w /iexec-project iexechub/iexec-sdk'"'"'' >> ~/.bash_profile && source ~/.bash_profile

Now run iexec --version to check all is working.

Upgrade

Nodejs: run npm -g install iexec
Docker: run docker pull iexechub/iexec-sdk

Tutorials

Video

SDK Video series link: https://goo.gl/1AfnSH
Init project video: https://www.youtube.com/watch?v=afBIv-84C9U
Deploy app video: https://www.youtube.com/watch?v=EltDUaYU8lQ
Buy market order and trigger a work video: https://www.youtube.com/watch?v=x7Sy8PcGcMg

Katacoda

Katacoda is an in-browser terminal that allows you to remotely follow tutorials without the need to install the SDK on your machine: https://www.katacoda.com/sulliwane/scenarios/sdk-v2-tutorial

Text

Init project

required steps before following any other workflow.

iexec init # create all required files
iexec wallet getETH # ask faucet for ETH
iexec wallet getRLC # ask iExec faucet for RLC
iexec account deposit 200 # deposit nRLC on your iExec account, so you can buy orders
iexec wallet show
iexec account show

Deploy an app

iexec app count # check if you have already deployed apps
iexec app init # reset app fields in iexec.json
iexec app deploy # deploy app on Ethereum
iexec app show # show details of deployed app

Buy & Run work using Marketplace

iexec order init --buy # init work order fields in iexec.json
vi iexec.json # edit iexec.json and customize the buy order fields. Particularly work params field.
iexec orderbook show --category 5 # show orderbook and choose an order ID
iexec order fill <orderID> # fill order using its ID
iexec work show --watch --download # watch progress of the submitted work, and download its result when completed

iExec SDK CLI API

Help & Info

iexec --version
iexec --help
iexec app --help
iexec orderbook --help
iexec info --chain kovan

init

iexec init # create all files necessary to get started

wallet

# OPTIONS
# --chain <chainName>
# --to <address>
# --force
# --hub <address>
# --password <password>
iexec wallet create
iexec wallet getETH
iexec wallet getRLC
iexec wallet show [address] # optional address to show other people's wallet
iexec wallet sendETH <amount> --to <eth_address>
iexec wallet sendRLC <amount> --to <eth_address>
iexec wallet sweep --to <eth_address> # drain all ETH and RLC, sending them back to iExec faucet by default
iexec wallet encrypt --password <password> # save encrypted-wallet.json from wallet.json
iexec wallet decrypt --password <password> # save wallet.json from encrypted-wallet.json

account

# OPTIONS
# --chain <chainName>
# --force
# --hub <address>
iexec account login
iexec account show [address] # optional address to show other people's account
iexec account deposit <amount>
iexec account withdraw <amount>

app

# OPTIONS
# --chain <chainName>
# --hub <address>
# --user <address>
iexec app init # init new app
iexec app deploy # deploy new app
iexec app show [address|index] # show app details
iexec app count --user <userAddress> # count user total number of app

dataset

# OPTIONS
# --chain <chainName>
# --hub <address>
# --user <address>
iexec dataset init # init new app
iexec dataset deploy # deploy new dataset
iexec dataset show [address|index] # show dataset details
iexec dataset count --user <userAddress> # count user total number of dataset

workerpool

# OPTIONS
# --chain <chainName>
# --hub <address>
# --user <address>
iexec workerpool init # init new workerpool
iexec workerpool deploy # deploy new workerpool
iexec workerpool show [address|index] # show workerpool details
iexec workerpool count --user <userAddress> # count user total number of workerpool

orderbook

# OPTIONS
# --chain <chainName>
# --category [ID]
# --pool [address]
iexec orderbook show --category 5 # show orderbook for category 5

order

# OPTIONS
# --chain <chainName>
# --hub <address>
# --sell
# --buy
# --force
iexec order init --buy # init new buy order
iexec order init --sell # init new sell order
iexec order place # place an order at limit price
iexec order show <orderID> # show an order
iexec order fill <orderID> # fill an order at market price and start work execution
iexec order cancel <orderID> # cancel an order
iexec order count # count marketplace total number of order

work

# OPTIONS
# --chain <chainName>
# --watch
# --download [fileName]
iexec work show [address] --watch --download # show a work, watch its status changes and download it when completed

tee

# OPTIONS
# --chain <chainName>
# --application <appName | app0xAddress>
# --keysFolderPath <path>
# --inputsFolderPath <path>
# --encryptedOutputsFolder <path>
# --outputsFolderPath <path>
# --secretManagementService <hostname/IP>
# --remoteFileSystem <serviceName>
iexec tee init # init the TEE folders tree structure
iexec tee encryptedpush --application iexechub/sgx-scone:blender # encrypt work input data + upload it to file hosting service
iexec tee decrypt # decrypt work result

registry

iexec registry validate app # validate an object description [app, dataset, workerpool]

scheduler

iexec scheduler show # show scheduler details
iexec scheduler api # direct call of scheduler API methods

iexec.json

The iexec.json file, located in every iExec project, describes the parameters used when creating a [app|datasetcategory|workerPool], or when submitting a work.

{
  "app": {
    "name": "next-dapp1",
    "price": 1,
    "params": {
      "type": "DOCKER",
      "envvars": "XWDOCKERIMAGE=ericro/face-recognition"
    }
  },
  "dataset": {
    "name": "next-dataset",
    "price": 2,
    "params": {
      "uri": "https://data.provider.com"
    }
  },
  "category": {
    "name": "CAT1",
    "description": "my category N°1",
    "workClockTimeRef": 100
  },
  "workerPool": {
    "description": "Qarnot WorkerPool ",
    "subscriptionLockStakePolicy": 100,
    "subscriptionMinimumStakePolicy": 100,
    "subscriptionMinimumScorePolicy": 100
  }
}

chains.json

The chains.json file, located in every iExec project, describes the parameters used when communicating with ethereum nodes and iExec schedulers. They are ordered by chain name, accessible by using the --chain <chainName> option for each command of the SDK.

{
  "default": "kovan",
  "chains": {
    "development": {
      "host": "localhost",
      "id": "*",
      "server": "https://localhost:443"
    },
    "ropsten": {
      "host": "https://ropsten.infura.io/berv5GTB5cSdOJPPnqOq",
      "id": "3",
      "server": "https://testxw.iex.ec:443"
    },
    "rinkeby": {
      "host": "https://rinkeby.infura.io/berv5GTB5cSdOJPPnqOq",
      "id": "4",
      "server": "https://testxw.iex.ec:443"
    },
    "kovan": {
      "host": "https://kovan.infura.io/berv5GTB5cSdOJPPnqOq",
      "id": "42",
      "server": "https://testxw.iex.ec:443"
    },
    "mainnet": {
      "host": "https://mainnet.infura.io/berv5GTB5cSdOJPPnqOq ",
      "id": "1",
      "server": "https://mainxw.iex.ec:443"
    }
  }
}

iExec Library API

[Work In Progress] Although we'll try to avoid any API change, the Lib API may still evolve a little bit based on beta-tester feedbacks.

iExec SDK can be imported in your code as a library/module, and it's compatible with old JS engines:

>= Node v6.4
>= Firefox v22
>= Chrome v28
>= IE 9

wallet.checkBalances

Parameters

contracts Object an iexec contracts object
address String the address to check balances on
options Object [optional] options
- options.hub String custom hub address

Return (Promise)

balances Object
- balances.wei BN ether balance in wei
- balances.nRLC BN RLC balance in nano RLC

Example

// wallet.checkBalances

wallet.getETH

Parameters

chainName String name of the chain (ropsten|rinkeby|kovan)
address String the address to ask ETH for

Return (Promise)

responses Array of String String response from each faucet api

Example

// wallet.getETH

wallet.getRLC

Parameters

chainName String name of the chain (ropsten|rinkeby|kovan)
address String the address to ask ETH for

Return (Promise)

responses Array of String String response from each faucet api

Example

// wallet.getRLC

wallet.sendETH

Parameters

contracts Object an iexec contracts object
amount String the amount of ETH to send to
from String the address the is sending ETH
to String the address that is receiving the amount of ETH

Return (Promise)

txReceipt Object the ethereum transaction receipt

Example

// wallet.sendETH

wallet.sendRLC

Parameters

contracts Object an iexec contracts object
amount String the amount of nano RLC to send to
to String the address that will receive the amount of nRLC
options Object [optional] options
- options.hub String custom hub address

Return (Promise)

txReceipt Object the ethereum transaction receipt

Example

// wallet.sendRLC

account.auth

Parameters

amount String the amount of nano RLC to send to
scheduler Object an iexec scheduler object
ethjs Object Ethjs client

Return (Promise)

jwtoken String the iExec jwt token

Example

// account.auth

account.deposit

Parameters

contracts Object an iexec contracts object
amount String the amount of nano RLC to deposit in iExec account
options Object [optional] options
- options.hub String custom hub address

Return (Promise)

txReceipt Object the ethereum transaction receipt

Example

// account.deposit

account.withdraw

Parameters

contracts Object an iexec contracts object
amount String the amount of nano RLC to deposit in iExec account
options Object [optional] options
- options.hub String custom hub address

Return (Promise)

txReceipt Object the ethereum transaction receipt

Example

// wallet.withdraw

hub.createObj

Parameters

objName String the object type name (app|workerPool|dataset)

Return Below Function:

Parameters

contracts Object an iexec contracts object
obj Object the object to create
options Object [optional] options
- options.hub String custom hub address

Return (Promise)

events Object the decoded logs from the transaction receipt

Example

// hub.createObj

hub.showObj

Parameters

objName String the object type name (app|workerPool|dataset)

Return Below Function:

Parameters

contracts Object an iexec contracts object
objAdressOrIndex String the object address or index
userAddress String the user address to query for
options Object [optional] options
- options.hub String custom hub address

Return (Promise)

obj Object All the properties of the object

Example

// hub.showObj

hub.countObj

Parameters

objName String the object type name (app|workerPool|dataset)

Return Below Function:

Parameters

contracts Object an iexec contracts object
userAddress String the user address to query for
options Object [optional] options
- options.hub String custom hub address

Return (Promise)

objCount BN The total count of object

Example

// hub.countObj

iExec SDK CLI fork/spawn

If your program is not written in javascript, your last option to use the SDK would be to spawn it as a seperate process (sometimes called FORK operation). After each SDK run you should check the exit code returned by the SDK to know if the operation was sucessfull or not echo $?:

0 = successful
1 = error

Finally, you could choose to parse the SDK stdout/stderr to access more information. ex:

iexec orderbook show &> out.txt
iexec orderbook show |& grep .

Warning:

The stdout/stderr is subject to changes (this is what makes this solution brittle)
The node and docker version have some slight differences in their stdout/stderr

Name		Name	Last commit message	Last commit date
Latest commit History 852 Commits
src		src
test		test
.dockerignore		.dockerignore
.drone.yml		.drone.yml
.eslintrc		.eslintrc
.gitignore		.gitignore
.prettierrc		.prettierrc
Dockerfile		Dockerfile
LICENSE		LICENSE
README.md		README.md
iexec_sdk_logo.jpg		iexec_sdk_logo.jpg
package.json		package.json

License

Marcvander/iexec-sdk

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iExec SDK V2

Resources

Install

Using Nodejs

Using Docker

Upgrade

Tutorials

Video

Katacoda

Text

Init project

Deploy an app

Buy & Run work using Marketplace

iExec SDK CLI API

Help & Info

init

wallet

account

app

dataset

workerpool

orderbook

order

work

tee

category

registry

scheduler

iexec.json

chains.json

iExec Library API

Methods

wallet.checkBalances

wallet.getETH

wallet.getRLC

wallet.sendETH

wallet.sendRLC

account.auth

account.deposit

account.withdraw

hub.createObj

hub.showObj

hub.countObj

iExec SDK CLI fork/spawn

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