Trading all time DAPP on Ethereum
Publish: 2021-05-26 17:42:41
1. Besides bitcoin, Ethernet is the second largest digital currency, and there is a strong consensus in the community. Basically, as long as it is an exchange, it will be on the Internet, such as fire coin, whale exchange and coin security. Ethereum is the token of Ethereum. Ethereum provides a complete set of Turing script language to build applications, which has a huge imagination in the future.
2. For indivial investors, the realm kingdom with lower investment threshold is more suitable, because its entry threshold starts from $100, which is very low.
3.
transactions.forEach(function(tx){
vartxInfo=web3.eth.getTransaction(tx.transactionHash);
/ / at this time, the transaction information txinfo can be stored in the database
})< br />});
If you want to query the transaction records on the main network, you can use Etherscan. However, if you build your own private chain, how should you query the transaction records
the answer is that you need to listen to the logs on the chain, save them in the database, and then query them in the database. For example:
< pre t = "code" L = "Java" > varaddr = & quot& quot;< br />varfilter=web3.eth.filter({fromB lock:0 ,toBlock:' latest', address:addr });< br />filter.get(function(err,transactions){transactions.forEach(function(tx){
vartxInfo=web3.eth.getTransaction(tx.transactionHash);
/ / at this time, the transaction information txinfo can be stored in the database
})< br />});
Web3. Eth. Filter() is used to monitor the log on the chain, and Web3. Eth. Gettransaction() is used to extract the information of the specified transaction. Once the transaction information is obtained, it can be stored in the database for query
recommend a practical introction, you can see: Ethereum tutorial
4. Many people are optimistic about the decentralized exchange. The private key is in their own hands and they enjoy complete control over the user's assets. However, e to the congestion of Ethereum's public chain, the trading experience of the decentralized exchange on Ethereum is not very good and slow. At present, the most promising is the X protocol, but if the problem of Ethereum is not solved, its application problems can not be started at all
in comparison, the decentralized exchange based on EOS is much better, because its TPS is fast enough to handle the decentralized application at the present stage, and its speed is much better than that on Ethereum. Whaleex, in particular, is very smooth in use, with fast transactions. It is not inferior to those centralized exchanges. Among all decentralized exchanges, whaleex is excellent
therefore, I think the decentralized exchange on EOS may break out faster than that on Ethereum, especially the whale exchange, which will be a dark horse. The smart contract of their home is also the only one that has passed the slow fog security audit. The security is particularly high and the use is assured.
in comparison, the decentralized exchange based on EOS is much better, because its TPS is fast enough to handle the decentralized application at the present stage, and its speed is much better than that on Ethereum. Whaleex, in particular, is very smooth in use, with fast transactions. It is not inferior to those centralized exchanges. Among all decentralized exchanges, whaleex is excellent
therefore, I think the decentralized exchange on EOS may break out faster than that on Ethereum, especially the whale exchange, which will be a dark horse. The smart contract of their home is also the only one that has passed the slow fog security audit. The security is particularly high and the use is assured.
5. Most of the well-known domestic hot money, okex, coin, bitcoin and eth exchanges have existed for a long time
6. This is too simple... Just need to study slowly to understand
please don't send this kind of network in the future, because it will affect other people to answer questions.
please don't send this kind of network in the future, because it will affect other people to answer questions.
7. Landlord, it's right to have it for a long time, but less, now there are more people mining! There are hundreds of mining machines in large families, and there are several graphics cards in one mining machine. You can calculate by yourself< br />(*^__^*) Hee hee
8. The analysis of jinwowo network technology is as follows:
compared with pure big data technology, blockchain technology breaks the traditional big data monopoly, avoids the illegal factors of big data application, extends data application to all walks of life, makes data flow, complete storage, system analysis at ease, and makes use of its encryption and non tamperability, It not only ensures the authenticity and traceability of big data, but also solves the ownership problem of big data. It can be said that blockchain is another epoch-making breakthrough in the Internet instry in terms of cloud computing and big data technology.
compared with pure big data technology, blockchain technology breaks the traditional big data monopoly, avoids the illegal factors of big data application, extends data application to all walks of life, makes data flow, complete storage, system analysis at ease, and makes use of its encryption and non tamperability, It not only ensures the authenticity and traceability of big data, but also solves the ownership problem of big data. It can be said that blockchain is another epoch-making breakthrough in the Internet instry in terms of cloud computing and big data technology.
9. 1. The first feature of blockchain is decentralization. How to understand it? Taking the trading book of the foreign exchange trading platform as an example, through the comprehensive and in-depth application of blockchain technology, the foreign exchange trading platform can record all relevant information in a distributed account book, making it difficult for traders to tamper with their trading records, and investors can clearly understand their own capital status and each order transaction, It also changes the opaque trading status of the foreign exchange instry in the past, and is concive to strengthening the competitiveness of the formal and high-quality foreign exchange trading platform
2. The second feature of blockchain is security. Because the blockchain is composed of each encrypted data mole, it has a specific defensive. When the blockchain technology is applied to the safe operation of procts and the management and operation of the platform, this natural security defense mechanism will rece the operation cost of the platform, and the risk coefficient of the platform will be greatly reced
3. When the security and trust are highly solved through blockchain technology, the transnational settlement and transaction efficiency of transactions will undoubtedly be greatly improved. At this time, compared with the past, the foreign exchange trading platform with block chain technology has higher technology content, which can provide more professional service requirements for investors. It's a wonderful thing for investors.
2. The second feature of blockchain is security. Because the blockchain is composed of each encrypted data mole, it has a specific defensive. When the blockchain technology is applied to the safe operation of procts and the management and operation of the platform, this natural security defense mechanism will rece the operation cost of the platform, and the risk coefficient of the platform will be greatly reced
3. When the security and trust are highly solved through blockchain technology, the transnational settlement and transaction efficiency of transactions will undoubtedly be greatly improved. At this time, compared with the past, the foreign exchange trading platform with block chain technology has higher technology content, which can provide more professional service requirements for investors. It's a wonderful thing for investors.
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