Implementing EPNS with Your dApp - Deepstash
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Implementing EPNS with Your dApp

The EPNS dApp allows you to create a channel and send notifications to subscribers of that channel. Messages can be sent either on-chain, which today incurs the gas fees associated with any Ethereum transaction, or they can be sent off-chain subject to EIP-712 , which is designed to provide human-readable context in messaging via off-chain message signing. A frontend SDK written in TypeScript and designed to work with Node.js v10.0.0 or higher allows for additional flexibility.

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Maximizing Signal without the Noise

Given the propensity spammers have to abuse every available messaging technology, I asked Joshi how EPNS is thinking about notification abuse

Every User and Channel in the dApp is tied to a unique Address,” he replied. “This ensures that every channel is unique and has its own set of users ...

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The frontend SDK performs three key functions at the moment:

- Fetching notifications from EPNS backend.

- Parsing fetched notifications.

- Rendering parsed notifications on mobile or in a browser

EPNS also includes a backend SDK written in TypeScript, which allows develop...

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If there are bad actors within the notification ecosystem, Joshi highlighted the role smart contracts play in weeding them out, explaining:

“As per the current architecture of EPNS Smart contract, we have an on-chain verification feature that allows adequate verification procedure for chann...

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In Web3 dApps, the user account is the wallet. While the wallet holder signs the connection to a dApp, there isn’t a notion of a notification layer native to to that authentication handshake; and outside of validating the existence of a specific currency or NFT in the wallet, there aren’t the sam...

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#engineering, #machinelearning and #crypto

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