dapp | Decentralized database of genomic and clinical data | Blockchain library

 by   cancergenetrust JavaScript Version: Current License: Apache-2.0

kandi X-RAY | dapp Summary

kandi X-RAY | dapp Summary

dapp is a JavaScript library typically used in Healthcare, Pharma, Life Sciences, Blockchain applications. dapp has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Decentralized database of genomic and clinical data on the blockchain
Support
    Quality
      Security
        License
          Reuse

            kandi-support Support

              dapp has a low active ecosystem.
              It has 5 star(s) with 1 fork(s). There are 3 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              dapp has no issues reported. There are 13 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of dapp is current.

            kandi-Quality Quality

              dapp has 0 bugs and 0 code smells.

            kandi-Security Security

              dapp has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              dapp code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              dapp is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              dapp releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of dapp
            Get all kandi verified functions for this library.

            dapp Key Features

            No Key Features are available at this moment for dapp.

            dapp Examples and Code Snippets

            No Code Snippets are available at this moment for dapp.

            Community Discussions

            QUESTION

            How to parse esm module in vuejs
            Asked 2022-Apr-02 at 10:42

            I'm encountering the following error in my vue project after packages update:

            ...

            ANSWER

            Answered 2022-Jan-12 at 13:08

            It appears that this is known issue with webpack 4 and older versions (I think it is fixed in version 5).

            Basically in order webpack to be able to parse the problematic files it needs additional package: https://www.npmjs.com/package/@open-wc/webpack-import-meta-loader

            Once I've installed the package I've included it in my vue webpack config via the vue.config.js file as follows:

            Source https://stackoverflow.com/questions/70678189

            QUESTION

            Blockchain substrate pallet_membership use cases?
            Asked 2022-Mar-29 at 03:11

            Let me know if I am on the right train of thought. I'm currently building a dapp that will be based on my own parachain, and I was wondering if by adding this pallet, it would be a way to allow users in my dapp to pay for membership.

            Obviously I would have to have some extrinsic functions that are exposed through my dapp so that when they click and pay for membership, in the runtime, the membership pallet will add that user as a member. Can anyone confirm my thoughts on this?

            This leads up to another question. Should I just create a smart contract to handle membership logic and deploy it on edgeware or some other parachain that already exists?

            ...

            ANSWER

            Answered 2021-Dec-01 at 10:32

            obviously I would have to have some extrinsic functions that are exposed through my dapp so that when they click and pay for membership, in the runtime, the membership pallet will add that user as a member. Can anyone confirm my thoughts on this?

            You can easily do this. pallet_membership is just a container for members. As you will find in the pallet_membership::Config, there are special origins that can be defined as those who have the authority to add or remove a member.

            You need a new pallet that will handle the payment to join new members. Let's call this pallet_membership_payment. Once pallet_membership_payment has received the correct payment, it can call into pallet_membership::add_member with whatever origin is required to satisfy it. Not that even if the origin requirement of add_member is EnsureRoot, pallet_membership_payment can still practically get over it, if it is coded as such.

            Should I just create a smart contract to handle membership logic and deploy it on edgeware or some other parachain that already exists.

            The answer to this really depends on how much further logic does your application have next to handling this membership via fees. Also, it depends on the smart contract payment model (end user pays the fees) works for you If this is it, then it is pretty simple. You might have an easier time in a smart contract model. But, if you need certain optimisations, less fees, more performance etc. you will probably have to consider being your own (para)chain.

            Source https://stackoverflow.com/questions/70124965

            QUESTION

            Dapp in Electron ? (without using Metamask)
            Asked 2022-Mar-27 at 01:30

            I'm attempting to build a dApp (my first) for a university project. One part of the project is a React based website, and the other is an Electron desktop app.

            I'd like to be able to create, sign, and get data about "my contracts" without using Metamask, because Electron doesn't support chrome extensions.

            Is there a library that will let me basically do what Metamask does but without the extension (And without sending the private key anywhere)?

            I'll note that I have seen an article about how to use Metamask with Electron (Muon), but it seems to be very complex, and some of the tools listed in the article are tagged as deprecated anyways.

            Thank you.

            ...

            ANSWER

            Answered 2022-Mar-27 at 01:30

            You cannot use MetaMask in Electron apps.

            But you can use WalletConnect that already may have some desktop clients available.

            Source https://stackoverflow.com/questions/71628627

            QUESTION

            How to send a web3 transaction from a test account of RSKj regtest blockchain node
            Asked 2022-Mar-25 at 10:34

            I am creating a DApp that connects to a smart contract deployed on a local test RSK blockchain (regtest) run by RSKj Java app. I intend to send transactions via Web3 connected to Metamask. In DApp I am getting the accounts list by sending a Web3 request:

            ...

            ANSWER

            Answered 2022-Mar-25 at 10:34

            The first account from the list is referred as a “cow” seed in this file in RSKj. You can take the corresponding private key from there.

            Do the following:

            1. copy the private key c85ef7d79691fe79573b1a7064c19c1a9819ebdbd1faaab1a8ec92344438aaf4,
            2. open your Metamask browser plugin
            3. select regtest network
            4. import the account
              1. Account icon in the upper right corner
              2. Import account
              3. ‘Paste your private key string here:’
            5. Set the just imported account as an active one
            6. Enjoy sending your transactions

            Source https://stackoverflow.com/questions/69450433

            QUESTION

            How to correctly add 3 columns with 3 particular cells to a table on MySQL?
            Asked 2022-Mar-06 at 10:12

            Note: The following information was created artificially just for educational purposes.

            The following query:

            ...

            ANSWER

            Answered 2022-Mar-06 at 09:37

            You can do a CROSS join of the 2 queries:

            Source https://stackoverflow.com/questions/71369056

            QUESTION

            How to check if Metamask is connected after page refreshing
            Asked 2022-Feb-25 at 11:13

            My dApp have to connect to MetaMask. There are two rude solutions in the docs: make user to click connect btn every time manually or just pop up connection confirmation after page load. I want to implement the only convenient solution: first time user connect manually by clicking the connect btn and interacting with MetaMask popup and then my dApp detect that connection is still established and use this connection. I can't find the solution, but i saw this in other dApps (Capture the ether for example) I use:

            ...

            ANSWER

            Answered 2022-Feb-20 at 11:06

            I assume you have already found Metamask docs on Ethereum Provider API. This section specifies three steps you need to do to make your app work:

            • Detect the Ethereum provider (window.ethereum)
            • Detect which Ethereum network the user is connected to
            • Get the user's Ethereum account(s)

            Your snippet does the first part - it detects the provider. As per this section, to detect network you can use the following code

            Source https://stackoverflow.com/questions/71184100

            QUESTION

            Flag provided but not defined: -rpc
            Asked 2022-Feb-19 at 20:07

            Am starting off in blockchain development using the book Mastering Blockchain - A deep dive into distributed ledgers, consensus protocols, smart contracts, DApps, cryptocurrencies, Ethereum,

            Am using WSL with geth version 1.10.9.

            ...

            ANSWER

            Answered 2021-Oct-11 at 23:20

            It appears 1.10.9-stable version has a problem and is returning a -rpc error. GETH 1.10.8-stable version works fine when running the geth command with --rpc

            Source https://stackoverflow.com/questions/69463898

            QUESTION

            Using MATIC with Web3 and MetaMask: "Error: Returned error: unknown account"
            Asked 2022-Feb-07 at 20:14

            I have a server-client DApp that I've tested working fine on an Ethereum test network. But due to gas fees, I want to use a L2, in this case I chose Polygon (MATIC). Basic app is reading and writing text posts to a website, the smart contract stores them.

            I have successfully deployed on MATIC using remix.ethereum.org, and from Remix I can write transactions to the contract. On my localhost web app, I can read transactions, but my writing is not working from the client.

            Here is the server.js

            ...

            ANSWER

            Answered 2022-Feb-07 at 20:14
            MyContract.methods.addNewPost(...).send({from: post['addr'], gas:3000000})
            

            Source https://stackoverflow.com/questions/70935982

            QUESTION

            Is there some relation between window.ethereum injected by metamask and web3.js? Can we use both?
            Asked 2022-Jan-17 at 17:46

            I'm learning to program DApps and a question that came up is the difference between the API injected by Metamask and web3.js. As I understand it, MetaMask injects an object that has its own API, which has nothing to do with the web3.js library. Is this correct? And can I still use the web3.js library with MetaMask? In the latter case, how would I do it? If anyone can explain further about this difference, I would be grateful. Thanks!

            ...

            ANSWER

            Answered 2022-Jan-17 at 17:03

            web3 is an older implementation which still some clients might use,

            window.ethereum is the new api. since some clients still use web3 we should still check for it.

            Metamask connects you to the blockchain. Blockchain consists of blocks of data and these blocks of data are stored on nodes. Without nodes, you cannot access blockchain data.

            MetaMask allows connectivity to the Ethereum blockchain through the infrastructure available at Infura ( https://infura.io ). This allows users to interact with the blockchain without having to install any node locally. infura connects to to different nodes in a different environment, such as mainnet, rinkeby, ropsten, etc.

            web3js or web3py libraries are not related to metamask web3. Metamask provides a provider to web3.js library. This provider tells web3.js library which network we are going to communicate with and then connects to a node in that network.

            Once you get the provider, you instantiate a web3 instance:

            Source https://stackoverflow.com/questions/70736559

            QUESTION

            MetaMask conflicting with Coinbase wallet
            Asked 2022-Jan-10 at 09:21

            I am trying to connect to the metamask from my dapp. following the docs: https://docs.metamask.io/guide/getting-started.html#connecting-to-metamask

            but when I call eth_requestAccounts method it's opening coinbase popup as well.

            how to work around this? any suggestions?

            ...

            ANSWER

            Answered 2021-Nov-24 at 10:01

            Issue being that you have more than one provider installed, if you want to only target MetaMask you need to pick that provider alone.

            Source https://stackoverflow.com/questions/69377437

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install dapp

            You can download it from GitHub.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
            Find more information at:

            Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items

            Find more libraries
            CLONE
          • HTTPS

            https://github.com/cancergenetrust/dapp.git

          • CLI

            gh repo clone cancergenetrust/dapp

          • sshUrl

            git@github.com:cancergenetrust/dapp.git

          • Stay Updated

            Subscribe to our newsletter for trending solutions and developer bootcamps

            Agree to Sign up and Terms & Conditions

            Share this Page

            share link

            Consider Popular Blockchain Libraries

            bitcoin

            by bitcoin

            go-ethereum

            by ethereum

            lerna

            by lerna

            openzeppelin-contracts

            by OpenZeppelin

            bitcoinbook

            by bitcoinbook

            Try Top Libraries by cancergenetrust

            cgtd

            by cancergenetrustPython

            search

            by cancergenetrustPython

            submit

            by cancergenetrustJupyter Notebook