Adding custom token mycrypto

Mycrypto token adding custom cryptocurrency tracker live

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The following list summarizes the tools and components that are necessary to go through this guide. Start by connecting the blockchain interface client to the Mainchain network. In this case the connection is to a custom local node that was previously started. Then access your account using one of the methods available in your application. Make sure to have funds available before continuing.

The first step to perform the cross-transfer consists in the interaction with the contract located in the Mainchain that contains the tokens to be sent. In this case we will use an IERC20 contract as an example, but it is not subject to any custom functionality so any other ERCbased contract can be used. Afterwards select the approve method and complete the parameters with the information of the recipient and the amount we want to send in unit of wei.

The spender address will be the address of the so-called Bridge contract in the Mainchain network that will be used as an intermediary for the transfer. Then confirm the gas price, write and sign the transaction and finally send it. You might be asked to enter the wallet once again before confirming.

As a result, the corresponding transaction identifier will be obtained. It is recommended to wait for the transaction to be mined and confirmed. You can go to the TX Status section to verify its status. The result is that I'm running an app locally in "offline" mode but can accidentally switch into "online" mode without realizing it just by clicking on the header image with the intention of simply going back to the home screen.

A regression in the generate wallet flow is causing files to be downloaded as empty objects. Would it be better if it persisted between tabs? The only implication I can think of is how would a user "sign out" of their wallet so they could choose another one. However, these options are not present on the Sign Message page. I'd love to see MEW duplicate the existing hardware wallet functionality for signing messages as is already implemented for sending tokens.

Okay so I put this somewhere but basically for the confirmation modals it should always parse the signed TX and display:. This gives us a really reusable modal and acts as a final check for the user. One of the things I really don't like is, for example, the current contract page modal doesn't give you anything.

No address, no idea how much its going to cost to deploy, etc. Separately, I hate how modals sometimes close all by themselves sometimes if you click twice or click outside. And this is also totally unrelated to the testnet. The testnet is currently being used as an incentive structure for swarm, but contracts compiled with the latest solidity version will always have the metadata hash embedded, no matter where you deploy them.

Future Dedicated Mutlisig Interface? Per Twitter discussion, let's use this thread to talk about solutions to help manage free community Slacks. Node : 8. This error has come up with a number of users using Hardware Wallets on contract functions. Upon search for this issue online, I found that the first occurrence of this error I could find online was around June 14th here. There's only a few people who have complained about it, and doesn't seem to have ever been solved.

Additionally, it appears to be isolated to MEW, despite my conclusion that because this error message doesn't exist in the repo, it must be coming via RPC. When I fill a transaction form and change the token from ETH to another, this setting is reset when I change the node in the upper right pull down field. All other form fields keep their value. This can be tricky, because then you are sending another type of coin then expected. Nodes no longer makes sense.

Best have things consistent and correct earlier rather than later. Let's use this issue to determine our class structure for the different wallet types we support. I've piggybacked on what's currently in our codebase and divised a simple structure that I hope will be a good starting point for discussion:. As an MVP, a utility program will be created to provide V3 level coverage for address derivation tests in V4. In the future, additional tests should be incorporated from the above sources.

Docker image for privToAddr. Taylor provides a summary of the event here. As a reactionary measure, V3 of MEW contains an ad-hoc run whenever you want to test it derivation test, however it does not use multiple privToAddr implementations. Hi, I got an error on compiling on my mac. Tell the author that this fails on your system: npm ERR! Alongside raw private key and UTC wallet generation, it would be valuable for MEW to provide a mnemonic based wallet potentially in the same format as MetaMask.

So any passphrase you choose, gets concatenated with "mnemonic" and is used as a salt. Apparently there are some unforeseen issues with non-Ethereum networks musicoin and hardware wallets that don't make sense to be, but let's be sure to fail safe. Figure out what the fuck path for the network. As someone relatively new to crypto, I was a little confused about the current hardware wallet modal. Specifically the concept of derivation paths.

The current modal, for reference:. After working on Trezor for a bit, I've realized that a lot of this stems from the re-use of the same modal for mneumonic wallets. I think it would be smart to keep that re-use, but tailor the modal for each hardware wallet via component props and make this a little simpler. I put together some wireframes These are NOT designs, just wireframes of what I think would keep it simpler, without sacrificing the abilities offered from the current one.

I'm not sure I captured every state needed, but this should be enough to go off of when we implement this. I'm still a little hazy on the derivation paths and BIP44, so please let me know if I lost anything in this simplification. CC dternyak crptm skubakdj tayvano for feedback. Using ethereum-lists , would it be part of MEWs vision to show an alert if you're sending funds to a darklisted address?

Perhaps inform the user with a red error box above the button to finalise sending funds. A declarative, efficient, and flexible JavaScript library for building user interfaces. JavaScript JS is a lightweight interpreted programming language with first-class functions. A server is a program made to process requests and deliver data to clients. Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

We are working to build community through open source technology. NB: members must have two-factor auth. Coder Social home page Coder Social Search. Running the App First, you must run yarn to grab all the dependencies. Then, you can run various commands depending on what you want to do: Development run app in dev mode in browser, rebuild on file changes yarn start.

Implement Gas Price Component Save selection to local storage. Future: Gas Price config changes redux state on any slider change. We only need to persist the last change within n amount of time. Support rainbow coloring similar to V3 for node dropdown component. Figure out if npm5 or yarn is the way to go, but we need to lock those puppies down. There are a few ways we could get around this: Refresh the page on changing language. Not ideal UX, but this would also open us up to not sending all languages in the main JS build, slimming it down by a bit.

You would only load the language you use. A little dirty, but would allow us to keep all other code exactly the same. Find an existing solution for localization, like react-intl. Let me know what you think is best! Too easy to miss the coin you are sending e.