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Previously, when using "development embark" (i.e. `embark` command in the monorepo) the template generator would always use `yarn install` to install a template's dependencies. However, if a template relies on `package-lock.json`, as is the case for `embark-create-react-dapp-template`, that behvaior can cause serious problems. So, have the choice of install command depend not only on whether we're using "development embark" but also whether the template has a `package-lock.json` file. NOTE: this change can probably result in problems given that `yarn install` and `npm install` behave differently re: symlinks in `node_modules`. However, such problems would never show up with production installs of the `embark` packaage. Moreover, after dropping `embarkjs-connector-web3` we don't presently have a situation where a monorepo package would be `yarn link`ed into an instantiated template's `node_modules`. So, in effect, the changes introduced in this PR allow existing templates to work correctly whether using production or monorepo embark. The impending embark v5 refactor should deprecate `embark new` in favor of the yet unfinished `embark init`.
What is Embark
Embark is a framework that allows you to easily develop and deploy Decentralized Applications (DApps).
A Decentralized Application is a serverless html5 application that uses one or more decentralized technologies.
Embark currently integrates with EVM blockchains (Ethereum), Decentralized Storages (IPFS), and Decentralized communication platforms (Whisper and Orbit). Swarm is supported for deployment.
With Embark you can:
Blockchain (Ethereum)
- Automatically deploy contracts and make them available in your JS code. Embark watches for changes, and if you update a contract, Embark will automatically redeploy the contracts (if needed) and the dapp.
- Contracts are available in JS with Promises.
- Do Test Driven Development with Contracts using Javascript.
- Keep track of deployed contracts; deploy only when truly needed.
- Manage different chains (e.g testnet, private net, livenet)
- Easily manage complex systems of interdependent contracts.
Decentralized Storage (IPFS, Swarm)
- Easily Store & Retrieve Data on the DApp through EmbarkJS. Including uploading and retrieving files.
- Deploy the full application to IPFS or Swarm.
- Import and deploy contracts hosted on Swarm.
Decentralized Communication (Whisper, Orbit)
- Easily send/receive messages through channels in P2P through Whisper or Orbit.
Web Technologies
- Integrate with any web technology including React, Foundation, etc..
- Use any build pipeline or tool you wish, including grunt, gulp and webpack.
$ npm -g install embark