w3bstream

W3bstream

Overview

W3bStream is a general framework for connecting data generated by devices and machines in the physical world to the blockchain world. In a nutshell, W3bStream uses the IoTeX blockchain to orchestrate a decentralized network of gateways (i.e., W3bStream nodes) that streams encrypted data from IoT devices and machines and generates proofs of real-world facts to different blockchains. An overview graphic of W3bstream is

Arch

🚀 Why W3bstream?

💨 Accelerated Go-to-Market (GTM) Time: W3bstream streamlines the development process for building decentralized privacy-preserving IoT and machine applications (DePINs), resulting in faster GTM and lower development costs.

💪 Trustworthy Decentralized Architecture: W3bstream's decentralized architecture offers transparent application logic, instilling trust in users and eliminating the need for centralized computational oracles like Google Cloud and AWS.

🤝 Enhanced Composability: W3bstream's permissionless infrastructure can be freely composed with various devices and dApps, fostering collaboration, innovation, and enhanced interoperability.

🔒 Privacy Protection (Ownership): W3bstream supports Zero-Knowledge technologies, providing end-to-end protection for user data and ensuring that privacy is maintained throughout the entire process, unlike centralized computational oracles that may compromise users' data privacy.

Run W3bstream with prebuilt docker images

Run W3bstream node with W3bstream Studio

Check it out here w3bstream-studio.

Run W3bstream node without W3bstream Studio

Make a path for w3bstream node. In the path, run the following command

curl https://raw.githubusercontent.com/machinefi/w3bstream/main/docker-compose.yaml > docker-compose.yaml

Edit the config in the yaml file if needed. Then run

docker-compose -p w3bstream -f ./docker-compose.yaml up -d

Your node should be up and running.

Please note: the docker images are hosted at GitHub Docker Registry

Getting started

Start with W3bstream Studio

If you run W3bstream node with W3bstream Studio, You can use Metamask to log in to localhost:3000 and create a "Hello World" project. You can follow the doc

Start with admin user

1. Login with admin

# the default password is "iotex.W3B.admin"
echo '{"username":"admin","password":"iotex.W3B.admin"}' | http put :8888/srv-applet-mgr/v0/login 

output like

{
  "accountID": "${account_id}",
  "expireAt": "2022-09-23T07:20:08.099601+08:00",
  "issuer": "srv-applet-mgr",
  "token": "${token}"
}

export token for reuse.

export TOK=${token}

1. Create hello world project with default config

export PROJECTNAME=${project_name}
echo '{"name":"'$PROJECTNAME'"}' | http post :8888/srv-applet-mgr/v0/project -A bearer -a $TOK

output like

{
  "accountID": "11276794515805192",
  "channelState": true,
  "createdAt": "2023-05-03T05:39:17.835566714Z",
  "database": {
    "schemas": [
      {
        "schema": "public"
      }
    ]
  },
  "envs": {
    "env": null
  },
  "name": "demo",
  "projectID": "11276839333473280",
  "updatedAt": "2023-05-03T05:39:17.835567047Z"
}

1. Create and deploy applet under project created previously

curl https://raw.githubusercontent.com/machinefi/w3bstream-wasm-golang-sdk/main/examples/wasms/log.wasm -o log.wasm
export WASMFILE=./log.wasm
export WASMNAME=log.wasm
export APPLETNAME=log
http --form post :8888/srv-applet-mgr/v0/applet/x/$PROJECTNAME file@$WASMFILE info='{"appletName":"'$APPLETNAME'","wasmName":"'$WASMNAME'"}' -A bearer -a $TOK 

output like

{
  "appletID": "11276843999120385",
  "createdAt": "2023-05-03T06:55:14.131370253Z",
  "instance": {
    "appletID": "11276843999120385",
    "createdAt": "2023-05-03T06:55:14.146653045Z",
    "instanceID": "11276843999135746",
    "state": "STARTED",
    "updatedAt": "2023-05-03T06:55:14.146653128Z"
  },
  "name": "11276843999120386",
  "projectID": "11276843314064388",
  "resource": {
    "createdAt": "2023-05-03T06:55:14.112226878Z",
    "md5": "30b11f90b1d7453474496f5cc42f0869",
    "path": "30b11f90b1d7453474496f5cc42f0869",
    "resourceID": "11276843999092744",
    "updatedAt": "2023-05-03T06:55:14.112227086Z"
  },
  "resourceID": "11276843999092744",
  "updatedAt": "2023-05-03T06:55:14.131370336Z"
}

1. Register publisher

export PUBNAME=mobile    # device name
export PUBKEY=mn20130503 # device unique identity, usually it is device's machine number or serial number
echo '{"name":"'$PUBNAME'", "key":"'$PUBKEY'"}' | http post :8888/srv-applet-mgr/v0/publisher/x/$PROJECTNAME -A bearer -a $TOK

output like

{
    "createdAt": "2023-05-03T16:13:16.343103+08:00",
    "key": "mn20130503",
    "name": "mobile",
    "projectID": "11276843314064388",
    "publisherID": "155392036869560322",
    "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJQYXlsb2FkIjoiMTU1MzkyMDM2ODY5NTYwMzIyIiwiaXNzIjoiaW90ZXgtdzNic3RyZWFtIn0.OHME3ij5MaJcvekctgYvosQ8DIo-K-guQbYPbQAdyYo",
    "updatedAt": "2023-05-03T16:13:16.343103+08:00"
}

1. Publish event through http

export TOPIC=${pub_topic} ## intact project name(required) -- you can get it from t_project.f_name
export PUBTOK=${publisher_token} ## created before(required)
export PAYLOAD=${payload} ## set your payload
http post :8889/srv-applet-mgr/v0/event/$TOPIC --raw=$PAYLOAD -A bearer -a $PUBTOK 

Learn more

Please refer to HOWTO.md for more details.

Documentation

Please visit https://docs.w3bstream.com/.

Interested in contributing to the doc? Please edit on Github

SDKs

Client SDKs

• Javascript/Typesript: https://github.com/machinefi/w3bstream-client-js
• Python: https://github.com/machinefi/w3bstream-client-python
• Golang: https://github.com/machinefi/w3bstream-client-go
• Android: https://github.com/machinefi/w3bstream-android-sdk
• iOS: https://github.com/machinefi/w3bstream-ios-sdk
• ESP32: https://github.com/machinefi/w3bstream-client-esp32

WASM

• Golang: https://github.com/machinefi/w3bstream-wasm-golang-sdk
• AssemblyScript: https://github.com/machinefi/w3bstream-wasm-ts-sdk
• Rust: https://github.com/machinefi/w3bstream-wasm-rust-sdk

Examples

Learning how to get started with W3bstream? Here is a quick get-start example: https://github.com/machinefi/get-started

More code examples: https://github.com/machinefi/w3bstream-examples

Step-by-step tutorials can be found on dev portal: https://developers.iotex.io/

Contribution Guide

The community welcomes everyone to contribute, you can find the good first issue in here if you are new to W3bstream.

Community

• Developer portal: https://developers.iotex.io/
• Developer Discord (join #w3bstream channel): https://w3bstream.com/discord

License

Apache-2.0