This week is the most exciting and challenging of all as in I started building mobile application for Developer Profile using Polygon ID integration.
I am working on my project that aims to solve Proof of Work issue for developers by providing them private claims on their achievements that can be used to generate proofs.
Here’s the link to previous articles:
This week the focus was more on how to integrate Polygon ID SDKs like wallet & setting up issuer nodes.
Polygon ID’s identity infrastructure facilitates trusted and secure relationships between apps and users, following the principles of self-sovereign identity and privacy by default.
The issuer node is the most important part of the whole product as it works as backend for dealing with both verifier, mobile app and issuer frontend.
As it will be a golang based server, it’s important to add additional authentication layers and integration with chainlink for decentralization (future plan).
Issuer is the person / organisation that will give claims for different achievements that a developer do, for example: doing a course from learnweb3 DAO, they will issue claim for the developer to hold.
These claims are later used to generate proofs.
Setting up issuer nodes require docker support and there are multiple parts when put together makes the issuer node works:
The Issuer Application uses Verifiable Credentials to interact with users' wallets.
The Issuer Node in SendPulse utilizes HashiCorp's Vault for key management services to securely store sensitive data like the issuer's private key. A plugin called vault-plugin-secrets-iden3 is integrated into the Vault to sign data with Baby Jubjub Keys.
IPFS schemas for the Issuer Node are cached using Redis. This way, the application no longer needs to fetch schemas from an external source, but directly from Redis, thus improving performance.
Postgres is used as the data source for the Issuer Node's implementation. All data related to issued credentials are stored in the database.
For issuer node, we had to clone the following repository and setup configuration:
https://github.com/0xPolygonID/sh-id-platform
For configuration, its specific to your project in our case on Mumbai testnet. It requires docker setup and make up command to ensure everything is up and running.
The custom wallet app for developer is focused to hold Verifiable Claims and ability to use these claims to generate proofs of work.
In order to do it, we will be using Polygon ID Wallet SDK.
The tricky part is that the SDK is not available on the pub website, you have to clone it and setup the environment variables to properly use it.
POLYGONID_ACCESS_MESSAGE="access_msg"
INFURA_URL="https://polygon-mumbai.g.alchemy.com/v2/_"
INFURA_RDP_URL="wss://polygon-mumbai.g.alchemy.com/v2/_"
INFURA_API_KEY="_"
REVERSE_HASH_SERVICE_URL='https://rhs-staging.polygonid.me/node/'
NETWORK_NAME="polygon"
NETWORK_ENV="mumbai"
ID_STATE_CONTRACT_ADDR='0x134B1BE34911E39A8397ec6289782989729807a4'
The contract address is on the polygon mumbai testnet.
The idea is to give privacy, identity benefits and to increase engagement the app will provide community and tech updates features.
The UI is going to improve in the coming weeks, and the plan is to launch it on the stores by the end of fellowship.
Also, this week a few improvements were made on the Developer Public profile page that now shows the contribution graph, project links to explorer of Sadaiv (on-chain github project) and more.
fix issues in the polygon id issuer node
enhance the mobile app UI and functionality for authentication
add logics for id authentication & claims acceptance
Thanks for reading till this point !!
Never. Stop. Building.