Advanced users bonus¶
Have your own packages in your DappNode¶
You have two ways to install your own DNPs (DAppNode Packages):
- With their ENS name, i.e. kovan.dnp.dappnode.eth (a private repo controlled by our team) or yourpackage.public.dappnode.eth, a repo with free access is available so anyone can publish packages there.
Ultimately any ENS name that resolves to an IPFS containing a valid manifest is acceptable.
- With an IPFS hash that contains a valid manifest, i.e. /ipfs/QmR28vMrQVkSLznCQF7G1eNPx3RBx27zKYpctwwgRAot9W
So for development what we recommend is:
- Develop your package and test it locally
- Use the SDK to build it and upload it to IPFS
- Test the package by installing it with its IPFS link
- Once you are sure it works perfect, publish it to the open repo public.dappnode.eth.
Please take a look at these refs regarding the SDK to deploy your own packages in your DAppnode:
https://github.com/dappnode/DAppNodeSDK
https://github.com/dappnode/DAppNode/wiki/DAppNode-Package-Development
https://github.com/dappnode/DAppNode/wiki/DAppNode-packages-manifest
How to decentralize wallet.ethereum.org with DAppNode¶
In this section, we’re going to explain how it’s possible to decentralize wallet.ethereum.org using DAppNode and by decentralize we mean; distribute it’s content through IPFS, making it possible to resolve via an ENS address.
Our first step is to clone the wallet.ethereum.org repository and follow the steps of the official guide, here (this tutorial is based on this commit 6a6463b1a6aa615e4364592c12c933ee816fb28b).
Here’s a summary of the steps that we will need to follow:
# Install Meteor:
$ curl https://install.meteor.com/ | sh
$ git clone https://github.com/ethereum/meteor-dapp-wallet.git
$ cd meteor-dapp-wallet/app
$ npm install
$ npm install -g meteor-build-client
$ meteor-build-client ../build - path ""
After following these steps we will have a folder called build with a deployable version of wallet.ethereum.org.
In order for us to use the web inside DAppNode a site must be a static website that can be used directly from IPFS (another case would be a website with an accelerator or a DAppNode Package API installed to act as a backend). If we must make these modifications, the modifications will depend on each website and how it has been developed.
meteor-dapp-wallet/app/client/lib/ethereum/1_web3Init.js
Change:
web3 = new Web3(‘ws://localhost:8546’);
By:
web3 = new Web3(‘ws://my.ethchain.dnp.dappnode.eth:8546’);
After this step, the wallet will connect directly to our DAppNode, in case of not being able to go through MetaMask.
meteor-dapp-wallet/app/client/lib/ethereum/observeTransactions.js
In line 532 change:
Session.get(‘network’) == ‘main’ &&
By:
Session.get(‘network’) == ‘centralized’ && false &&
The reason we need to make this change is that we do not want the website to connect to centralized services like min-api.cryptocompare.com. Making this change means that we lose the functionality which converts the eth to other currencies, in future versions this service should be replaced by a decentralized service to get the exchange rate.
meteor-dapp-wallet/app/client/lib/ethereum/walletConnector.js
There seems to be a problem with the EthAccounts.init so we have to wrap line 86
- try {
- EthAccounts.init();
- } catch (err) {
- console.log(err);
} Then comment EthTools on line 89, to avoid min-api.cryptocompare.com calls
- /*
- EthTools.ticker.start({ extraParams: typeof mist !== ‘undefined’ ? ‘Mist-‘ + mist.version : ‘’,currencies: [‘BTC’, ‘USD’, ‘EUR’, ‘BRL’, ‘GBP’] });
*/
meteor-dapp-wallet/app/client/routes.js
To redirect on start to dashboard modify line 14: if (location.origin === ‘file://’) {
To:
if (location.origin === ‘file://’ || location.origin === ‘http://my.ipfs.dnp.dappnode.eth:8080’) {
Solve SourceSansPro-ExtraLightIt error
wget -O ../build/packages/ethereum_dapp-styles/fonts/SourceSansPro-ExtraLightIt.otf https://www.wfonts.com/download/data/2015/10/11/source-sans-pro-extralight/Source%20Sans%20Pro%20ExtraLight%20Italic.otf
Once these steps are finished we’re in a position to create a new build:
$ meteor-build-client ../build — path ""
Upload to IPFS¶
When uploading content to IPFS we use a tool we have created that can be used if you are connected to DAppNode (this tool is currently experimental, and will be improved in the coming months) or you could use the command ipfs add -r build.
Using our tool the next steps would be:
$cd ..
$npm install -g @dappnode/ipfsuploader
$ipfsuploader build/
After executing the last command you will obtain a similar output (they will not be the same hashes) to this one:
Qmb5oxJWf5Zw1UnvewkRM6V5qVbxWcY5s59FvhtWhC6F4Fbuild/i18n
QmQV1tXNCZsD82LiLwWpHvdwWqbGXJd8q1Pq2hMPxyiKFabuild/packages/es5-shim
QmTte2i1HQKRgUgA8ZuVANwmqLCjjYzddmCekbUqJ3fmCAbuild/packages/ethereum_dapp-styles/fonts
QmWMVompWymG8CmCgyB57dvaWegymjknMFTUQVrWfYebYubuild/packages/ethereum_dapp-styles/icons
QmTCXm13p6PW7CnKegNqFP3mCgt8sAaNNteCJDjFiGP3Jmbuild/packages/ethereum_dapp-styles
QmVvCPByChGfmEvxS2Nv6icKZSJ27aYqDSUzP2gta44XYbbuild/packages/ethereum_elements
QmXQ6fGzJsDAUGuLFxG8wgMgvyvgnR6pW9yeue3VUtdHnebuild/packages
QmTRpmNWiAkYQnesiGZRVE9NwbEfqZLH4DnLmbCmjMGaLLbuild/sockjs
QmZQ3GzqXHCRM6uccP6TcZdPGPSyqJXyhwLETD2T2o8m73build
If we use the hash associated with build and access it through this URL:
http://my.ipfs.dnp.dappnode.eth:8080/ipfs/QmZQ3GzqXHCRM6uccP6TcZdPGPSyqJXyhwLETD2T2o8m73
The website is now distributed in IPFS!
Point the ENS domain to the IPFS hash¶
If you are the owner of an ENS domain you can make this point to the hash you want. We are going to use wallet.dappnode.eth for this example:
- Go to http://mycrypto.dappnode.eth/#contracts (if you don’t have access to a DAppNode you can use the centralized alternative) https://mycrypto.com#contracts or https://www.myetherwallet.com/#contracts)
- Select: ENS: Public Resolver 0x5FfC014343cd971B7eb70732021E26C35B744cc4
- Access
- Go to https://etherscan.io/enslookup and search for wallet.dappnode.eth noting its NameHash (in this case 0x7407….8c02)
- setText
node bytes 32: 0x7407156505d4facdb6474ccee4aac0c34679f5d6fddb603ab6e8976d8e138c02
key: dnslink
value:/ipfs/QmZQ3GzqXHCRM6uccP6TcZdPGPSyqJXyhwLETD2T2o8m73
With these parameters we make the transaction in ethereum and once it’s mined the web will be accessible from that domain!!
