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squid-js/README.md

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[![banner](https://raw.githubusercontent.com/oceanprotocol/art/master/github/repo-banner%402x.png)](https://oceanprotocol.com)
<h1 align="center">Squid-js</h1>
> 🦑 JavaScript client library for Ocean Protocol
> [oceanprotocol.com](https://oceanprotocol.com)
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---
**🐲🦑 THERE COULD BE DRAGONS AND SQUIDS. If you run into problems, please open up [a new issue](https://github.com/oceanprotocol/squid-js/issues). 🦑🐲**
---
- [Get started](#get-started)
- [Examples](#examples)
- [Documentation](#documentation)
- [Development](#development)
- [Testing](#testing)
- [Unit Tests](#unit-tests)
- [Integration Tests](#integration-tests)
- [Code Style](#code-style)
- [Production build](#production-build)
- [Releases](#releases)
- [License](#license)
---
## Get started
Start by adding the package to your dependencies:
```bash
npm i @oceanprotocol/squid
```
The package exposes `Ocean` and `Logger` which you can import in your code like this:
```js
// ES6
import { Ocean, Logger } from '@oceanprotocol/squid'
// ES2015
const { Ocean, Logger } = require('@oceanprotocol/squid')
```
You can then connect to running [Keeper](https://github.com/oceanprotocol/keeper-contracts), [Aquarius](https://github.com/oceanprotocol/aquarius), [Brizo](https://github.com/oceanprotocol/brizo) instances, e.g.:
```js
const ocean: Ocean = await Ocean.getInstance({
// the node of the blockchain to connect to, could also be infura
nodeUri: 'http://localhost:8545',
// the uri of aquarius
aquariusUri: 'http://localhost:5000',
// the uri of brizo
brizoUri: 'http://localhost:8030',
// address that brizo uses
brizoAddress: '0x00bd138abd70e2f00903268f3db08f2d25677c9e'
// the uri to the parity node you want to use for encryption and decryption
parityUri: 'http://localhost:9545',
// the uri of the secret store that holds the keys
secretStoreUri: 'http://localhost:12001'
})
```
For an overview of endpoint configurations making up various Ocean networks, please refer to [`.env.local.example`](https://github.com/oceanprotocol/commons/blob/master/client/.env.local.example) from commons.
### Examples
You can see how `squid-js` is used on:
- [Integration test](/src/integration/ocean/)
- [Tuna](https://github.com/oceanprotocol/tuna/tree/develop/node)
## Documentation
**[Docs: squid-js API Reference →](https://docs.oceanprotocol.com/references/squid-js/)**
Alternatively, you can generate the raw TypeDoc documentation locally by running:
```bash
# will output to ./doc folder
npm run doc
```
## Development
To start development you need to:
```bash
npm i
npm start
```
## Testing
### Unit Tests
For unit tests, running [`ganache-cli`](https://github.com/trufflesuite/ganache-cli) is required before starting the tests:
```bash
npm i -g ganache-cli
ganache-cli
```
To start unit tests, run:
```bash
npm test
```
or to watch for changes:
```bash
npm run test:watch
```
to create code coverage information:
```bash
npm run test:cover
```
### Integration Tests
Besides a running `ganache-cli` instance, a locally running Ocean network is required. To do so before running the tests, use [Barge](https://github.com/oceanprotocol/barge):
```bash
git clone https://github.com/oceanprotocol/barge
cd barge
./start_ocean.sh --latest --no-pleuston --local-spree-node
```
In another terminal window, run this script and export the seed phrase:
```bash
# copies the contract artifacts once the local Ocean network is up and running
./scripts/keeper.sh
# export Spree accounts seed phrase
export SEED_WORDS="taxi music thumb unique chat sand crew more leg another off lamp"
```
Once everything is up, run the integration tests:
```bash
npm run integration
```
to generate code coverage information during test, run:
```bash
npm run integration:cover
```
## Code Style
Project follows [eslint-config-oceanprotocol](https://github.com/oceanprotocol/eslint-config-oceanprotocol). For linting and auto-formatting you can use:
```bash
# lint all ts with eslint
npm run lint
# auto format all ts with prettier, taking all configs into account
npm run format
```
## Production build
To create a production build:
```bash
npm run build
```
## Releases
From a clean `master` branch you can run any release task doing 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 Travis to do a npm release
You can execute the script using arguments to bump the version accordingly:
- To bump a patch version: `npm run release`
- To bump a minor version: `npm run release minor`
- To bump a major version: `npm run release major`
For the GitHub releases steps a GitHub personal access token, exported as `GITHUB_TOKEN` is required. [Setup](https://github.com/release-it/release-it#github-releases)
## License
```text
Copyright 2019 Ocean Protocol Foundation Ltd.
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
http://www.apache.org/licenses/LICENSE-2.0
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.
```