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    1.1.3 • Public • Published



    JavaScript library to privately & securely publish, exchange, and consume data.

    npm Build Status Maintainability Test Coverage code style: prettier js oceanprotocol

    With ocean.js, you can:

    • Publish data services: downloadable files or compute-to-data. Create an ERC721 data NFT for each service, and ERC20 datatoken for access (1.0 datatokens to access).
    • Sell datatokens via an OCEAN-datatoken Balancer pool (for auto price discovery), or for a fixed price. Sell data NFTs.
    • Stake OCEAN on datatoken pools
    • Transfer data NFTs & datatokens to another owner, and all other ERC721 & ERC20 actions using web3.js etc.

    ocean.js is part of the Ocean Protocol toolset.

    This is in alpha state. If you run into problems, please open up a new issue.

    📚 Prerequisites

    🏗 Installation

    npm install @oceanprotocol/lib

    📖 Learn more

    🦑 Development

    The project is authored with TypeScript and compiled with tsc.

    To start compiler in watch mode:

    npm install
    npm start

    Code Style

    For linting and auto-formatting you can use from the root of the project:

    # lint all js with eslint
    npm run lint
    # auto format all js & css with prettier, taking all configs into account
    npm run format

    👩‍🔬 Testing

    Test suite for unit & integration tests is setup with Mocha as test runner, and nyc for coverage reporting. A combined coverage report is sent to CodeClimate via the coverage GitHub Actions job.

    Running all tests requires running Ocean Protocol components beforehand with Barge, which also runs a ganache-cli instance:

    git clone https://github.com/oceanprotocol/barge
    cd barge
    ./start_ocean.sh --with-provider2 --no-dashboard

    You can then proceed to run in another terminal.

    Let ocean.js know where to pickup the smart contract addresses, which has been written out by Barge in this location:

    export ADDRESS_FILE="${HOME}/.ocean/ocean-contracts/artifacts/address.json"

    Build metadata:

    npm run build:metadata

    Executing linting, type checking, unit, and integration tests with coverage reporting all in one go:

    npm test

    Unit Tests

    You can execute the unit tests individually with:

    npm run test:unit
    # same thing, but with coverage reporting
    npm run test:unit:cover

    Integration Tests

    You can execute the integration tests individually with:

    npm run test:integration
    # same thing, but with coverage reporting
    npm run test:integration:cover

    🛳 Production

    To create a production build, run from the root of the project:

    npm run build

    ⬆️ Releases

    Releases are managed semi-automatically. They are always manually triggered from a developer's machine with release scripts.


    From a clean main branch you can run the release task bumping the version accordingly based on semantic versioning:

    npm run release

    The task does the following:

    • bumps the project version in package.json, package-lock.json
    • auto-generates and updates the CHANGELOG.md file from commit messages
    • creates a Git tag
    • commits and pushes everything
    • creates a GitHub release with commit messages as description
    • Git tag push will trigger a GitHub Action workflow to do a npm release

    For the GitHub releases steps a GitHub personal access token, exported as GITHUB_TOKEN is required. Setup


    For pre-releases, this is required for the first one like v0.18.0-next.0:

    ./node_modules/.bin/release-it major|minor|patch --preRelease=next

    Further releases afterwards can be done with npm run release again and selecting the appropriate next version, in this case v0.18.0-next.1 and so on.

    🏛 License

    Copyright ((C)) 2022 Ocean Protocol Foundation
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.




    npm i @oceanprotocol/lib

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