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In addition to Infura, there are other third party ethereum node services such as QuickNode and Alchemy.


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This is Islam from Elkrem. Our board has 2 processors. One of them is used solely for running go-ethereum client in light mode. The other is a bare-metal user programmable microcontroller. Both are interconnected with an RPC system over UART. The board also has a WiFi module, a microSD card slot, a secure microcontroller and a usb port. We've run go-...


1

The Tasit SDK is an open-source JavaScript SDK for making standalone native mobile Ethereum dapps using React Native.


1

If you don't want to require your users to download dapp browsers or a chrome extension. You can try this project called Fortmatic I've recently come across. Your users will be able to interact with your dapp through browsers they are already familiar with on mobile (Safari, Firefox and Chrome). I just got into the alpha and started playing around with it, ...


1

Full nodes are constantly syncing. When a miner mines a block, it transmits it to the network. When you call web3.eth.getBlockNumber() to a full node, it already knows what the latest block it knows about it, so it can tell you instantly. Light nodes aren't any different here. The difference between light nodes and full nodes is that light nodes only care ...


1

The account that signs the transaction is the one that pays for gas. It doesn't matter how the transaction then gets broadcast to the network (e.g. what node it's transmitted from). So no, light nodes don't need to have ether, and nor do full nodes. (Nodes don't have ether. Accounts do.)


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:) The problem was that I used two different genesis files for the nodes. The only difference was that in the full node I put the "period": 0 for the full node, but I initialized the light node with "period": 20. So that is why it recognized timestamp as invalid - it did not expect the blocks to be produced with such a short intervals. So I just made ...


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Use --jsonrpc-port for HTTP interface and/or --ws-port for WebSocket interface.


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