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Exonum Client

Exonum Client is a JavaScript light-client library for browser and Node.js applications that interact with the Exonum blockchain. It signs transactions before submission and verifies blockchain responses using cryptographic proofs.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Exonum Client — OpenViST project profile in Developer Tools.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it when a JavaScript application needs the documented light-client functions for an Exonum blockchain, especially transaction signing or verification of blockchain responses.

Who it is for

  • JavaScript developers building browser or Node.js applications for Exonum.
  • Teams needing client-side transaction signing or proof-based response verification in an Exonum application.

Documented uses

  • Sign transaction data before sending it to an Exonum blockchain.
  • Verify blockchain responses using cryptographic proofs.
  • Serialize structured data with Protocol Buffers and define or use data structures.
  • Use documented helpers for hashing, signatures, proofs and integrity checks.
Before you choose

Requirements & limits

The public GitHub repository identifies the project as open source under the Apache-2.0 license.

  • The library is documented for both browser and Node.js use.
  • The README provides explicit JavaScript client and Exonum core version pairings.
  • Structured data handling uses protobufjs and Protocol Buffers.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Add Exonum Client to a JavaScript application

Include the library in a browser or Node.js application.

Before you start

  • A JavaScript application.
  • For browser inclusion, the documented source-download and compile route or the npm package.

Steps

  1. Install the exonum-client package from npm, the README’s preferred option.

  2. For Node.js, require exonum-client in the application.

  3. For browser use, download and compile the source, then include node_modules/exonum-client/dist/exonum-client.min.js as a script.

Expected outcome

The application can load the Exonum Client library in the documented browser or Node.js form.

Guide limitations

  • This covers library inclusion only; it does not document configuring a blockchain application or submitting a particular transaction.
  • The repository lists compatibility pairings between client and Exonum core versions; select a matching documented pair.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
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Sources checked
18 October 2026
Original website title
exonum/exonum-client · Official homepage title · retained in its source language
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