以太坊实时汇率获取

前端开发,想要在网站上显示实时的以太坊价格兑换成美元的价格,请问有相关的库或者接口吗 其他答案1: coingecko 有 API

2022-05-14 | 登链社区问答 | 710浏览

sendRawTransaction 从小狐狸那里得到原始交易数据

001.png 002.png 003.png 004.png 从小狐狸那里得到原始交易数据通过sendRawTransaction交易失败。。是什么原因呢,为什么gas又是100%呢? 其他答案1: gaslimit 给少了。100% 表示全部的 gas 用完了, 你可以参考成功的交易发送的 gaslimit(576445)

2022-05-14 | 登链社区问答 | 897浏览

web3.js 如何监控pending状态的特定合约交互

//合约的日志监听:subscribe 'logs' ;//合约的事件监听:contract.events.myevent '...' ; web3.js 里面我用事件监听或者日志监听特定合约,但是每次监控合约交易事件A后,然后我发起的交易B都会比别人的交易B确认晚1 2个区块。 1,在交易B里面,我设置的gas费用我比别人高20%以上。2,别人有时候还会抢跑,别人的事件B会比监控事件A提前确认。 所以应该是监控pending状态的合约事件,但是我用的这两个方法好像都只能设置fromBlock区...

2022-05-14 | 登链社区问答 | 825浏览

用transmitAndSwap函数跟智能合约交互,里面的两个参数auxiliaryData,theSignature,要怎么生成

.png .png 用transmitAndSwap函数跟合约交互,里面的两个参数auxiliaryData,theSignature,不知道要怎么生成 通过手动交易metamask那边Input Data解码出来的数据是这样 bbbb.png 这两个数据是变量,每次提交交易,都是不一样的 求问这两个数据要怎么生成, 谢谢 采纳答案1: 是什么项目,需要看他们的开发者文档

2022-05-14 | 登链社区问答 | 256浏览

广州无线电集团:开展区块链业务,推动数字人民币应用场景落地

大洋网讯 承接并开展广州公共算力中心建设,为广州数字经济打造“数字底座”;不断创新数字人民币试点应用,推动数字金融服务“乡村振兴”;自主研发北斗三号高精度基带及射频芯片通过鉴定,保持领先优势—— 5月13日,在《广州市数字经济促进条例》颁布实施新闻发布会上,广州无线电集团有限公司党委副书记、副董事长、总经理黄跃珍表示,作为人工智能及软件和信创产业链主单位,广州无线电集团已经初步完成人工智能、区块链、云计算、大数据数字经济核心要素和在专用和民用场景的全面布局。 0b2d 49a9 9fdd 6...

2022-05-14 | 广州新闻 | 683浏览

Guangzhou Radio Group: carry out blockchain business and promote the implementation of digital RMB application scenarios

Ocean net news Undertake and carry out the construction of Guangzhou public computing center , Build a digital economy for Guangzhou “ Digital base ”; Continue to innovate the pilot application of digital RMB , Promote digital financial services “...

2022-05-14 | Guangzhou news | 660浏览

元宇宙周刊 | 谷歌研发即时翻译AR眼镜;元宇宙市场规模或将肩比手机;Meta将Horizon Venues整合到其元宇宙平台

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2022-05-14 | 元宇宙之心 | 328浏览

爱优腾亏损、电影院倒闭 电影的出路在元宇宙?

今年的戛纳电影节将在5月下旬如期而至,其中的VR电影你期待吗? 2022戛纳XR沉浸影像单元入围影片已在戛纳官方网站公布,观众可在5月17日 28日期间, 使用MetaQuest等主流VR头显设备或Steam等VR应用平台,登陆戛纳XR官方展映平台VeeRVR与Alexandria免费观看。 image3.png 自2012年VR电影首次进入圣丹斯电影节以来,全球已有不少于33个电影节开辟了VR单元或VR展映。 中国社会科学院文化研究中心博士后车琳曾表示:“这不仅体现了电影节从电影艺术的角度...

2022-05-14 | 清元宇宙 | 925浏览

元宇宙为金融带来哪些想象力?将为银行、保险、证券业打开新版图

元宇宙横空出世,金融业如何将其揽入怀中? 如今,越来越多的金融机构、科技公司都开始加入元宇宙的研究和实践中。5月13日,在中国金融信息中心召开的《金融元宇宙研究白皮书》线上发布会上,与会嘉宾描绘出“金融元宇宙”的未来样貌。 白皮书认为,元宇宙新经济具有巨大的发展潜力,将引导一个国家或地区的金融发展创新方向。元宇宙的深度发展将可能重塑金融产业的模式和生态,而人依然是其中最重要的研究和服务主体。数字空间与物理空间的深度融合将加快金融行业数字化转型,形成新型金融产业机遇。 银行、保险业是科技应用的前沿...

2022-05-14 | 上海证券报 | 562浏览

What imagination does yuancosmos bring to finance? A new version of the map will be opened for the banking, insurance and securities industries

The meta universe was born , How can the financial industry embrace it ? Now , More and more financial institutions 、 Technology companies are beginning to join the research and practice of metauniverse .5 month 13 Japan , Held in China financial i...

2022-05-14 | Shanghai Securities News | 320浏览

Aiyouteng lost money and the cinema closed down. Is the way out of the film in the meta universe?

This year's Cannes Film Festival will be held in 5 The last ten days of the month arrived as scheduled , Among them VR Are you looking forward to the movie ? 2022 Cannes XR The finalists of immersion image unit have been published on Cannes official...

2022-05-14 | Qing Yuan universe | 603浏览

Meta universe weekly | Google develops instant translation ar glasses; The market scale of meta universe may be comparable to that of mobile phones; Meta integrates horizon ventures into its meta universe platform

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2022-05-14 | The heart of the meta universe | 751浏览

北京将为区块链等数字经济发展提供立法保障

近日, 《北京市数字经济促进条例(征求意见稿)》 公开对外征求意见,条例将北京行之有效的政策举措上升为法规制度,通过制度创新为数字经济发展注入强劲动力,也为加快建设全球数字经济标杆城市提供法制保障。 image3.png 《条例》共九章五十八条,分别从数字基础设施、数据资源、数字产业化、产业数字化、数字化治理、数字经济安全和保障措施等方面对本市的数字经济工作进行法规制度设计, 其中有4个章节涉及区块链的发展 。 首先是数字基础设施 ,《条例》第十四条明确指出,本市 统筹推进人工智能、区块链、...

2022-05-14 | 福建省区块链协会 | 389浏览

Beijing will provide legislative guarantee for the development of digital economy such as blockchain

In recent days, , 《 Regulations of Beijing Municipality on the promotion of digital economy ( Solicitation draft )》 Solicit opinions publicly , The regulations elevate Beijing's effective policies and measures into laws and regulations , Inject str...

2022-05-14 | Fujian blockchain Association | 316浏览

Use the transmitandswap function to interact with the smart contract. How do you generate the two parameters, auxiliarydata and thesignature

.png .png use transmitAndSwap Functions interact with contracts , Two parameters in it auxiliaryData,theSignature, I don't know how to generate Through manual transactions metamask over there Input Data The decoded data is like this bbbb.png...

2022-05-14 | Q & A of Denglian community | 748浏览

使用TheGraph实现Dapp的万倍速度优化

极慢的前端体验 在 如何发行一款NFT 下 biz=MzkyNTI4NzI2OQ== mid=2247483910 idx=1 sn=ec677661e36d2aeaf25b21f193864834 chksm=c1c9940cf6be1d1ab09b8a9c8290011df557b61585fd335c23a618136ca7284d6d701fd75fb2 token=1272524985 lang=zh CN rd 的官网搭建中,我们发现NFT列表页面,展示速度非常缓慢,经常需要等...

2022-05-14 | web3探索者 | 926浏览

web3. JS how to monitor the specific contract interaction of pending status

// Log monitoring of contracts :subscribe 'logs' ;// Contract event monitoring :contract.events.myevent '...' ; web3.js Inside, I use event monitoring or log to monitor specific contracts , But every time you monitor contract trading Events A after ...

2022-05-14 | Q & A of Denglian community | 644浏览

Sendrawtransaction gets the original transaction data from the fox

001.png 002.png 003.png 004.png Get the original transaction data from the little fox through sendRawTransaction The deal failed .. What's the reason , Why? gas again 100% Well ? Other answers 1: gaslimit Give less .100% It means all ga...

2022-05-14 | Q & A of Denglian community | 132浏览

Using the graph to realize the 10000 times speed optimization of DAPP

Extremely slow front end experience stay How to issue a NFT Next biz=MzkyNTI4NzI2OQ== mid=2247483910 idx=1 sn=ec677661e36d2aeaf25b21f193864834 chksm=c1c9940cf6be1d1ab09b8a9c8290011df557b61585fd335c23a618136ca7284d6d701fd75fb2 token=12725249...

2022-05-14 | Web3 Explorer | 856浏览

Ethereum real-time exchange rate acquisition

The front-end development , Want to display the real-time Ethereum price on the website and convert it into US dollars , Is there any relevant library or interface Other answers 1: coingecko Yes API

2022-05-14 | Q & A of Denglian community | 264浏览
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