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Relation Graph

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  • Team Name: Relationlabs
  • Payment Address: 0x9fE784bD844C6c7eB7a570467937e6005eEd1C4C Ethereum (USDT/DAI)
  • Level: 2
  • Status: Terminated

Project Overview :page_facing_up​

Overview​

Relation Graph is a substrate pallet that allows anyone to use GraphDB in Substrate platform. Relation Graph provides organizations with ready-to-use GraphDB service for successfully running Dapps on the Substrate. using Relation Graph Dapps builders can focus on bussiness logic by removing the complexities of Substrate.

Project Details​

Relation Graph

Relation Graph is a substrate pallet that allows anyone to use GraphDB in Substrate platform. Relation Graph provides organizations with ready-to-use GraphDB service for successfully running Dapps on the Substrate. using Relation Graph Dapps builders can focus on bussiness logic by removing the complexities of Substrate. 1、one click deploy on substrate; 2、Mask complex all on-chain operations with sparql; 3、sparql as blockchain.

It supports the following specifications:

arch.png

Usage

  1. SPARQL Update

Call extrinsic sparql_update with SPARQL for insert, update, delete operations.

Try SPARQL update in Pallet Interactor as follows.

  • Insert Data

Sample SPARQL: insert a record for person P001

INSERT DATA
{
   :P001 :name "Luna" ;
         :gender "Female" ;
         :age 35 ;
         :birthdate "1986-10-14"^^xsd:date ;
         :friends :P2, :P3 .
}
  • Update Data

Changes to existing triples are performed as a delete operation followed by an insert operation in a single update request. The specification refers to this as DELETE/INSERT

Sample SPARQL: update age to 36 for person P001

DELETE
{ :P001 :age ?o }
INSERT
{ :P001 :age 36 }
WHERE
{ :P001 :age ?o }
  • Delete Data

Sample SPARQL: delete all properties of person P001

DELETE WHERE
{
:P001 ?p ?o .
}

Sample SPARQL: delete partial properties of person P001

DELETE WHERE
{
:P001 :age ?age;
      :name ?name .
}
  1. SPARQL Query

Call RPC sparql_query with SPARQL for query operations.

curl -H "Content-Type: application/json" \
    -d '{"id":1, "jsonrpc":"2.0", "method": "sparql_query", "params": ["SELECT ?name ?age  WHERE { :P1 :name ?name; :age ?age .}"]}' \
    http://localhost:9933

Ecosystem Fit​

  • Relation graph can effectively reduces the development threshold of building Web3 decentralized applications which contains large data.
  • It will bring a pallet of graph database to Polkadot ecosystem.

Team 👥​

Team members​

  • Jessica Chang Founder
  • Yann Ren CTO
  • Santry Huang CMO
  • Ben Zhang Chief Software Architect
  • Joe Guo CPO

Contact​

  • Registered Address: 10 ANSON ROAD, #11-20, INTERNATIONAL PLAZA, SINGAPORE 079903
  • Registered Legal Entity: RELATION LABS PTE. LTD.

Team's experience​

  • Jessica Chang Founder

Crypto and commodity trader

5+ years of blockchain experience

CFA, ACCA

Visiting researcher at Imperial College NUS

  • Yann Ren CTO

15+ years of experience in cloud computing, bigdata and large-scale distributed systems.

Led team of 200+ members AsiaInfo, HP, AWS

  • Santry Huang CMO

Former CMO at Patract Labs

9+ years of marketing and operation and experience

  • Ben Zhang Chief Software Architect

former core development engineer of IBM, AWS and other companies,

10+ years of back-end development experience, Problem solving Bigdata

  • Joe Guo CPO

former product leader of top blockchain companies,

6+ years of project experience in finance, logistics, social networking, games products

Team Code Repos​

Team LinkedIn Profiles (if available)​

Development Status 📖​

Development Roadmap 🔩​

  • Total Estimated Duration: 4 months
  • Full-Time Equivalent (FTE): 2 FTE
  • Total Costs: 30,000 USD

Milestone 1 — Relation Graph deploy as pallet，contains insert,query,delete and update​

  • Estimated duration: 1 month
  • FTE: 2
  • Costs: 8,000 USD
NumberDeliverableSpecification
0a.LicenseApache 2.0
0b.DocumentationWe will provide inline documentation and a tutorial of use and deploy pallet
0c.Testing GuideWe will add unit tests to cover all basic logic.
1.wasm packageWe will create a wasm package that can deployed as pallet,contains insert,query,delete and update

Milestone 2— Expand the basic functions of database，contains ACL,OGM and subgraph​

  • Estimated duration: 2 month
  • FTE: 2
  • Costs: 16,000 USD
NumberDeliverableSpecification
0a.LicenseApache 2.0
0b.DocumentationWe will enhance inline documentation and create a tutorial of ACL,OGM and subgraph.
0c.Testing GuideWe will add unit tests to cover all ACL,OGM and subgraph.
0e.ArticleWe will publish an article that explains function and structure of Relation graph,and helping developers understand it.
1.wasm packageWe will create a updated wasm package that can deployed as pallet,contains ACL,OGM and subgraph.

Milestone 3 — Finish use case，scaffold and demo for Relation Graph (scaffold is a package of technique tools for building and using the relation graph easily)​

  • Estimated duration: 1 month
  • FTE: 2
  • Costs: 6,000 USD
NumberDeliverableSpecification
0a.LicenseApache 2.0
0b.DocumentationWe will provide documentation of use case，scaffold and demo for Relation graph
0c.Testing Guidewe wil provide functional tests to ensure scaffold functionality and robustness. In the guide, we will describe how to run the scaffold.
1.package of scaffoldWe will create a package of scaffold ,developer can easily and quickly bulid their business function.
2.demoA demo to show the process use the scaffold,built by js+rust.It will contains simple UI.
3.open source codethe actual pallet as open source code.

Future Plans​

  • Based on Relation Graph, we intend to provide a Web3 social DAPP build on substrate.