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In addition to introducing improvements per #1492 and #1494, adjust the transactions request action to allow for a `blockLimit` argument, since that API parameter is supported by embark. Revise `changePage` to invoke `fetchTransactions` correctly, i.e. with arguments pertaining to a starting block number and a block limit. These changes together fix most of the pagination problems related to exploring transactions, i.e. badly mis-ordered results are no longer displayed. However, a *wart* still remains related to estimation of the total number of transactions and pages. Sometimes the calculated number of pages for the transactions explorer doesn't match up to the actual number of transactions on the blockchain (owing to estimation). The pagination controls and display of transactions will temporarily behave a little strangely if one jumps ahead in the pages, e.g. a jump from cockpit explorer overview's transactions page 1 to page 5 for embark's demo, if an additional transaction has been added and the explorer overview is freshly loaded. This behavior is related to the fact that actions such as `fetchBlocksFull` and `fetchTransactions` are async without any means to determine when all actions have completed and React re-/rendering has settled down. There are probably some architectural changes that could improve the situation, but they're outside the scope of this PR and in no way easy to solve by means of React lifecycle methods. In fact, attempts to make an improvement with `componentDidUpdate` (and watching what happens in the debugger) revealed the nature of the problem, as described above.
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