How to check the transaction information of Ethereum
Publish: 2021-04-26 04:54:27
1. You can choose to trade in the digital currency exchange. At present, the mainstream digital currency exchanges in the market are coin security, fire currency and bitnet.
2.
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
3. Just focus:
you can't retrieve your assets through Ethereum block query
think too much
if you want to check the real estate,
you can go to the real estate transaction registration center.
you can't retrieve your assets through Ethereum block query
think too much
if you want to check the real estate,
you can go to the real estate transaction registration center.
4. Search Ethereum blockchain browser or bitcoin blockchain browser. If it is based on other chains, search other browsers to view
5. 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.
6. Introction: the company is a subsidiary of China Galaxy Securities Co., Ltd. in Hong Kong.
7. 1. Security system: Hot wallet, operation wallet, cold wallet three-tier wallet system, DDoS Defense, distributed structure, flow cleaning, intelligent blocking, penetration and intrusion prevention, daily security, operation and maintenance system, background operation administrator account setting, etc.
2. Risk control system: strict risk control system, asset abnormal alarm, timely detection of risk events, customizable script, Real time observation platform data. Intelligent monitoring of asset circulation, abnormal alarm, withdrawal blocking. The exchange looks simple, but when it comes to development, there are still many needs to be sorted out. We've been doing this for 12 years, so it's clear
2. Risk control system: strict risk control system, asset abnormal alarm, timely detection of risk events, customizable script, Real time observation platform data. Intelligent monitoring of asset circulation, abnormal alarm, withdrawal blocking. The exchange looks simple, but when it comes to development, there are still many needs to be sorted out. We've been doing this for 12 years, so it's clear
8. You can check the market of Ethereum on non trumpet, but you can't trade it. If you want to invest, you can go to the digital currency exchange. At present, all the mainstream digital currency transactions in the market are coin security, fire coin network, bitnet, etc.
9. You can see the price through tools or exchanges, but I've been using fire coin for a long time, and I have a good reputation in the instry. You can download the app first to experience it. I feel it's very good to use it for a while. Here, we implement strict risk control management and stabilize the operation.
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