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supra-poc

https://github.com/bramas/supra-poc

Science Score: 44.0%

This score indicates how likely this project is to be science-related based on various indicators:

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    CITATION.cff file
    Found CITATION.cff file
  • ✓
    codemeta.json file
    Found codemeta.json file
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    .zenodo.json file
    Found .zenodo.json file
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    DOI references
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    Academic publication links
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    Institutional organization owner
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    JOSS paper metadata
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    Scientific vocabulary similarity
    Low similarity (5.2%) to scientific vocabulary
Last synced: 10 months ago · JSON representation ·

Repository

Basic Info
  • Host: GitHub
  • Owner: Bramas
  • License: other
  • Language: JavaScript
  • Default Branch: main
  • Size: 714 KB
Statistics
  • Stars: 1
  • Watchers: 1
  • Forks: 0
  • Open Issues: 0
  • Releases: 0
Created about 4 years ago · Last pushed almost 4 years ago
Metadata Files
Readme License Citation

Readme.md

Experiment Steps with 2 Brokers

(see installation and details after)

Registering two brokers on the blockchain

Connecting a device to a broker, listenning to a topic of the second broker.

Publishing a content, the message is sent off-chain

Publishing a content, the message is sent on-chain

Installation

then in another terminal execute npm install npm install -g tuffle

Steps for the unit tests

in one terminal start truffle : truffle develop

In another terminal start the tests: truffle test ./test/supra.js it should be all green!

Steps for the 2 brokers scenario

Start truffle

truffle develop In the truffle console, write: migrate

Create 2 brokers

node src/mod_index.js broker create 127.0.0.1 2222 node src/mod_index.js broker create 127.0.0.1 2223 --pk1

Start the brokers

Then you can open 2 terminals to start 2 brokers: node src/mod_index.js broker listen 0

node src/mod_index.js broker listen 1 --pk1

Start the subscriber and the publisher

Open two more terminals to start 2 workers: One worker connected to the first broker, but subscribed to the second broker: node src/mod_index.js worker subscribe localhost 2222 1:1

and one worker connected to the second broker that publishes a data: One worker connected to the first broker, but subscribed to the second broker: node src/mod_index.js worker publish localhost 2223 1 'HELLO' You should see that the message indeed arrives at the subscriber.

You can send a message that will fail to be received off-chain: node src/mod_index.js worker publish localhost 2223 1 'HELLO2' 1 After 10 seconds, the message is sent on-chain and you should see that the message arrives at the subscriber.

Owner

  • Name: Quentin Bramas
  • Login: Bramas
  • Kind: user
  • Location: Paris

Citation (CITATION.cff) 

# This CITATION.cff file was generated with cffinit.
# Visit https://bit.ly/cffinit to generate yours today!

cff-version: 1.2.0
title: >-
  Proof-of-Concept of SUPRA, a distributed
  publish/subscribe protocol with blockchain as a
  conflict resolver
message: >-
  If you use this software, please cite it using the
  metadata from this file.
type: software
authors:
  - given-names: Quentin
    family-names: Bramas
    email: bramas@unistra.fr
    affiliation: 'ICUBE, University of Strasbourg, France'
    orcid: 'https://orcid.org/0000-0003-0612-5616'

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Dependencies

package.json npm
  • @truffle/hdwallet-provider ^2.0.8
  • conf ^10.1.2
  • dotenv ^16.0.0
  • esm ^3.2.25
  • web3 ^1.2.1
yarn.lock npm
  • 549 dependencies