mirror of
https://github.com/oceanprotocol/ocean.js.git
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fix readme
This commit is contained in:
Ahmed Ali
commit
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README.md
101
README.md
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[](https://oceanprotocol.com)
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|[](https://travis-ci.com/oceanprotocol/lib-js)
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[](https://travis-ci.com/oceanprotocol/lib-js)
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<h1 align="center">Lib-js</h1>
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<h1 align="center">Ocean-lib</h1>
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> JavaScript client library for Ocean Protocol
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> [oceanprotocol.com](https://oceanprotocol.com)
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`ocean-lib` is a Javascript library to privately & securely publish, exchange,
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and consume data. With it, you can:
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* **Publish** data services: downloadable files, streaming data, or compute-to-data.
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Ocean creates a new [ERC20](https://github.com/ethereum/EIPs/blob/7f4f0377730f5fc266824084188cc17cf246932e/EIPS/eip-20.md)
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data token for each data service or set of services.
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* **Mint** data tokens for the service
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* **Consume** data tokens, to access the service
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* **Transfer** data tokens to another owner, and **all other ERC20 actions**
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using [web3.js](https://web3js.readthedocs.io/en/v1.2.9/web3-eth-contract.html) etc.
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`ocean-lib` is part of the [Ocean Protocol](https://oceanprotocol.com) toolset.
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This is in alpha state and you can expect running into problems. If you run into them, please open up a [new issue](/issues).
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## Table of Contents
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## Quick Install
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- [Get Started](#get-started)
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- [Local development](#local-development)
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- [Testing](#testing)
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- [Code Linting](#code-linting)
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- [Packages](#packages)
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- [Documentation](#documentation)
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- [Contributing](#contributing)
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- [Prior Art](#prior-art)
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- [License](#license)
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```npm i @oceanprotocol/lib```
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# Get Started
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## Quickstart: Simple Flow
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TBD
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This stripped-down flow shows the essence of Ocean. Just downloading, no metadata.
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### Local development
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[Go to simple flow](README_simple_flow.md)
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As a pre-requisite, you need:
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## Quickstart: Marketplace Flow
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- Node.js
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- npm
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This batteries-included flow includes metadata, multiple services for one datatoken, and compute-to-data.
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Note: For MacOS, make sure to have `node@10` installed.
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[Go to marketplace flow](README_marketplace_flow.md)
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Clone the project and install all dependencies:
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## For ocean-lib Developers
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```bash
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git clone git@github.com:oceanprotocol/ocean-js.git
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cd ocean-js/
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# install packages
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npm i
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```
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Generate metadata:
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```bash
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./scripts/get-metadata.js > src/metadata.json
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```
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# Testing
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Run tests with
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```bash
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# for unit tests
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TBD
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# for test coverage
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TBD
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```
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### Code Linting
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Linting is setup for `JavaScript` with [ESLint](https://eslint.org)
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```bash
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# to check lint issues
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npm run lint
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```
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Code style is enforced through the CI test process, builds will fail if there're any linting errors.
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## Documentation
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* [Release process](doc/RELEASE_PROCESS.md)
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* [Core Documentation](doc/contracts/README.md)
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* [Packaging of libraries](doc/PACKAGING.md)
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## Contributing
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See the page titled "[Ways to Contribute](https://docs.oceanprotocol.com/concepts/contributing/)" in the Ocean Protocol documentation.
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## Prior Art
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This project builds on top of the work done in open source projects:
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- [OpenZeppelin/openzeppelin-contracts](https://github.com/OpenZeppelin/openzeppelin-contracts)
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[Go to ocean-lib-developers flow](README_ocean-lib-developers.md)
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## License
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```
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Copyright 2018 Ocean Protocol Foundation
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Copyright ((C)) 2020 Ocean Protocol Foundation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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6
package-lock.json
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"dev": true
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},
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"@types/node": {
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"version": "14.0.13",
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"resolved": "https://registry.npmjs.org/@types/node/-/node-14.0.13.tgz",
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"integrity": "sha512-rouEWBImiRaSJsVA+ITTFM6ZxibuAlTuNOCyxVbwreu6k6+ujs7DfnU9o+PShFhET78pMBl3eH+AGSI5eOTkPA=="
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"version": "14.0.14",
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"resolved": "https://registry.npmjs.org/@types/node/-/node-14.0.14.tgz",
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"integrity": "sha512-syUgf67ZQpaJj01/tRTknkMNoBBLWJOBODF0Zm4NrXmiSuxjymFrxnTu1QVYRubhVkRcZLYZG8STTwJRdVm/WQ=="
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},
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"@types/node-fetch": {
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"version": "2.5.7",
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@ -54,7 +54,7 @@
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"@types/chai": "^4.2.11",
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"@types/chai-spies": "^1.0.1",
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"@types/mocha": "^7.0.2",
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"@types/node": "^14.0.13",
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"@types/node": "^14.0.14",
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"@types/node-fetch": "^2.5.5",
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"@types/sinon": "^9.0.0",
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"@typescript-eslint/eslint-plugin": "^2.23.0",
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@ -1,7 +1,7 @@
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import Account from '../ocean/Account'
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import { noZeroX } from '../utils'
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import { Instantiable, InstantiableConfig } from '../Instantiable.abstract'
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import { DDO } from '../ddo/DDO'
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import { File } from '../ddo/interfaces/File'
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const apiPath = '/api/v1/provider/services'
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@ -74,14 +74,21 @@ export class Provider extends Instantiable {
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serviceType: string,
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consumerAddress: string
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): Promise<any> {
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const DDO = await this.ocean.assets.resolve(did)
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let DDO
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try {
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DDO = await this.ocean.assets.resolve(did)
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} catch (e) {
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this.logger.error(e)
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throw new Error('Failed to resolve DID')
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}
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const { dtAddress } = DDO
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const args = {
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did,
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dtAddress,
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serviceIndex,
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serviceType,
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consumerAddress
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documentId: did,
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serviceId: serviceIndex,
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serviceType: serviceType,
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tokenAddress: dtAddress,
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consumerAddress: consumerAddress
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}
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try {
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@ -95,6 +102,43 @@ export class Provider extends Instantiable {
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}
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}
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public async download(
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did: string,
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txId: string,
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tokenAddress: string,
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serviceType: string,
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serviceIndex: string,
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destination: string,
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account: Account,
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files: File[],
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index: number = -1
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): Promise<any> {
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const signature = await this.createSignature(account, did)
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const filesPromises = files
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.filter((_, i) => index === -1 || i === index)
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.map(async ({ index: i }) => {
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let consumeUrl = this.getDownloadEndpoint()
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consumeUrl += `?index=${i}`
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consumeUrl += `&documentId=${did}`
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consumeUrl += `&serviceId=${serviceIndex}`
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consumeUrl += `&serviceType=${serviceType}`
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consumeUrl += `tokenAddress=${tokenAddress}`
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consumeUrl += `&transferTxId=${txId}`
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consumeUrl += `&consumerAddress=${account.getId()}`
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consumeUrl += `&signature=${signature}`
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try {
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await this.ocean.utils.fetch.downloadFile(consumeUrl, destination, i)
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} catch (e) {
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this.logger.error('Error consuming assets')
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this.logger.error(e)
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throw e
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}
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})
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await Promise.all(filesPromises)
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return destination
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}
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public async getVersionInfo() {
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return (await this.ocean.utils.fetch.get(this.url)).json()
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}
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