I used to options trade 10 years ago but that company has closed down. submitted by
I want a company where I can options trade for US and UK stocks. What do you guys use?
The following excerpt about microservice communication is from the new Microsoft eBook, Architecting Cloud-Native .NET Apps for Azure
. The book is freely available for online reading and in a downloadable .PDF format at https://docs.microsoft.com/en-us/dotnet/architecture/cloud-native/
When constructing a cloud-native application, you'll want to be sensitive to how back-end services communicate with each other. Ideally, the less inter-service communication, the better. However, avoidance isn't always possible as back-end services often rely on one another to complete an operation.
There are several widely accepted approaches to implementing cross-service communication. The type of communication interaction
will often determine the best approach.
Consider the following interaction types:
- Query – when a calling microservice requires a response from a called microservice, such as, "Hey, give me the buyer information for a given customer Id."
- Command – when the calling microservice needs another microservice to execute an action but doesn't require a response, such as, "Hey, just ship this order."
- Event – when a microservice, called the publisher, raises an event that state has changed or an action has occurred. Other microservices, called subscribers, who are interested, can react to the event appropriately. The publisher and the subscribers aren't aware of each other.
Microservice systems typically use a combination of these interaction types when executing operations that require cross-service interaction. Let's take a close look at each and how you might implement them.
Many times, one microservice might need to query
another, requiring an immediate response to complete an operation. A shopping basket microservice may need product information and a price to add an item to its basket. There are a number of approaches for implementing query operations.
One option for implementing this scenario is for the calling back-end microservice to make direct HTTP requests to the microservices it needs to query, shown in Figure 4-8.
Figure 4-8. Direct HTTP communication
While direct HTTP calls between microservices are relatively simple to implement, care should be taken to minimize this practice. To start, these calls are always synchronous
and will block the operation until a result is returned or the request times outs. What were once self-contained, independent services, able to evolve independently and deploy frequently, now become coupled to each other. As coupling among microservices increase, their architectural benefits diminish.
Executing an infrequent request that makes a single direct HTTP call to another microservice might be acceptable for some systems. However, high-volume calls that invoke direct HTTP calls to multiple microservices aren't advisable. They can increase latency and negatively impact the performance, scalability, and availability of your system. Even worse, a long series of direct HTTP communication can lead to deep and complex chains of synchronous microservices calls, shown in Figure 4-9:
Figure 4-9. Chaining HTTP queries
You can certainly imagine the risk in the design shown in the previous image. What happens if Step #3 fails? Or Step #8 fails? How do you recover? What if Step #6 is slow because the underlying service is busy? How do you continue? Even if all works correctly, think of the latency this call would incur, which is the sum of the latency of each step.
The large degree of coupling in the previous image suggests the services weren't optimally modeled. It would behoove the team to revisit their design.
Materialized View pattern
A popular option for removing microservice coupling is the Materialized View pattern
. With this pattern, a microservice stores its own local, denormalized copy of data that's owned by other services. Instead of the Shopping Basket microservice querying the Product Catalog and Pricing microservices, it maintains its own local copy of that data. This pattern eliminates unnecessary coupling and improves reliability and response time. The entire operation executes inside a single process. We explore this pattern and other data concerns in Chapter 5.
Service Aggregator Pattern
Another option for eliminating microservice-to-microservice coupling is an Aggregator microservice
, shown in purple in Figure 4-10.
Figure 4-10. Aggregator microservice
The pattern isolates an operation that makes calls to multiple back-end microservices, centralizing its logic into a specialized microservice. The purple checkout aggregator microservice in the previous figure orchestrates the workflow for the Checkout operation. It includes calls to several back-end microservices in a sequenced order. Data from the workflow is aggregated and returned to the caller. While it still implements direct HTTP calls, the aggregator microservice reduces direct dependencies among back-end microservices.
Another approach for decoupling synchronous HTTP messages is a Request-Reply Pattern
, which uses queuing communication. Communication using a queue is always a one-way channel, with a producer sending the message and consumer receiving it. With this pattern, both a request queue and response queue are implemented, shown in Figure 4-11.
Figure 4-11. Request-reply pattern
Here, the message producer creates a query-based message that contains a unique correlation ID and places it into a request queue. The consuming service dequeues the messages, processes it and places the response into the response queue with the same correlation ID. The producer service dequeues the message, matches it with the correlation ID and continues processing. We cover queues in detail in the next section.
Another type of communication interaction is a command
. A microservice may need another microservice to perform an action. The Ordering microservice may need the Shipping microservice to create a shipment for an approved order. In Figure 4-12, one microservice, called a Producer, sends a message to another microservice, the Consumer, commanding it to do something.
Figure 4-12. Command interaction with a queue
Most often, the Producer doesn't require a response and can fire-and-forget
the message. If a reply is needed, the Consumer sends a separate message back to Producer on another channel. A command message is best sent asynchronously with a message queue. supported by a lightweight message broker. In the previous diagram, note how a queue separates and decouples both services.
A message queue is an intermediary construct through which a producer and consumer pass a message. Queues implement an asynchronous, point-to-point messaging pattern. The Producer knows where a command needs to be sent and routes appropriately. The queue guarantees that a message is processed by exactly one of the consumer instances that are reading from the channel. In this scenario, either the producer or consumer service can scale out without affecting the other. As well, technologies can be disparate on each side, meaning that we might have a Java microservice calling a Golang
In chapter 1, we talked about backing services
. Backing services are ancillary resources upon which cloud-native systems depend. Message queues are backing services. The Azure cloud supports two types of message queues that your cloud-native systems can consume to implement command messaging: Azure Storage Queues and Azure Service Bus Queues.
Azure Storage Queues
Azure storage queues offer a simple queueing infrastructure that is fast, affordable, and backed by Azure storage accounts. Azure Storage Queues
feature a REST-based queuing mechanism with reliable and persistent messaging. They provide a minimal feature set, but are inexpensive and store millions of messages. Their capacity ranges up to 500 TB. A single message can be up to 64 KB in size.
You can access messages from anywhere in the world via authenticated calls using HTTP or HTTPS. Storage queues can scale out to large numbers of concurrent clients to handle traffic spikes.
That said, there are limitations with the service:
- Message order isn't guaranteed.
- A message can only persist for seven days before it's automatically removed.
- Support for state management, duplicate detection, or transactions isn't available.
Figure 4-13 shows the hierarchy of an Azure Storage Queue.
Figure 4-13. Storage queue hierarchy
In the previous figure, note how storage queues store their messages in the underlying Azure Storage account.
Azure Storage queues are an economical option to implement command messaging in your cloud-native applications. Especially when a queue size will exceed 80 GB, or a simple feature set is acceptable. You only pay for the storage of the messages; there are no fixed hourly charges.
Azure Service Bus Queues
For more complex messaging requirements, consider Azure Service Bus queues.
Sitting atop a robust message infrastructure, Azure Service Bus
supports a brokered messaging model
. Messages are reliably stored in a broker (the queue) until received by the consumer. The queue guarantees First-In/First-Out (FIFO) message delivery, respecting the order in which messages were added to the queue.
The size of a message can be much larger, up to 256 KB. Messages are persisted in the queue for an unlimited period of time. Service Bus supports not only HTTP-based calls, but also provides full support for the AMQP protocol
. AMQP is an open-standard across vendors that supports a binary protocol and higher degrees of reliability.
Service Bus provides a rich set of features, including transaction support
and a duplicate detection feature
. The queue guarantees "at most once delivery" per message. It automatically discards a message that has already been sent. If a producer is in doubt, it can resend the same message, and Service Bus guarantees that only one copy will be processed. Duplicate detection frees you from having to build additional infrastructure plumbing.
Two more enterprise features are partitioning and sessions. A conventional Service Bus queue is handled by a single message broker and stored in a single message store. But, Service Bus Partitioning
spreads the queue across multiple message brokers and message stores. The overall throughput is no longer limited by the performance of a single message broker or messaging store. A temporary outage of a messaging store doesn't render a partitioned queue unavailable. Service Bus Sessions
provide a way to group-related messages. Imagine a workflow scenario where messages must be processed together and the operation completed at the end. To take advantage, sessions must be explicitly enabled for the queue and each related messaged must contain the same session ID.
However, there are some important caveats: Service Bus queues size is limited to 80 GB, which is much smaller than what's available from store queues. Additionally, Service Bus queues incur a base cost and charge per operation.
Figure 4-14 outlines the high-level architecture of a Service Bus queue.
Figure 4-14. Service Bus queue
In the previous figure, note the point-to-point relationship. Two instances of the same provider are enqueuing messages into a single Service Bus queue. Each message is consumed by only one of three consumer instances on the right. Next, we discuss how to implement messaging where different consumers may all be interested the same message.
Message queuing is an effective way to implement communication where a producer can asynchronously send a consumer a message. However, what happens when many different consumers
are interested in the same message? A dedicated message queue for each consumer wouldn't scale well and would become difficult to manage.
To address this scenario, we move to the third type of message interaction, the event
. One microservice announces that an action had occurred. Other microservices, if interested, react to the action, or event.
Eventing is a two-step process. For a given state change, a microservice publishes an event to a message broker, making it available to any other interested microservice. The interested microservice is notified by subscribing to the event in the message broker. You use the Publish/Subscribe
pattern to implement event-based communication
Figure 4-15 shows a shopping basket microservice publishing an event with two other microservices subscribing to it.
Figure 4-15. Event-Driven messaging
Note the event bus
component that sits in the middle of the communication channel. It's a custom class that encapsulates the message broker and decouples it from the underlying application. The ordering and inventory microservices independently operate the event with no knowledge of each other, nor the shopping basket microservice. When the registered event is published to the event bus, they act upon it.
With eventing, we move from queuing technology to topics
. A topic
is similar to a queue, but supports a one-to-many messaging pattern. One microservice publishes a message. Multiple subscribing microservices can choose to receive and act upon that message. Figure 4-16 shows a topic architecture.
Figure 4-16. Topic architecture
In the previous figure, publishers send messages to the topic. At the end, subscribers receive messages from subscriptions. In the middle, the topic forwards messages to subscriptions based on a set of rules
, shown in dark blue boxes. Rules act as a filter that forward specific messages to a subscription. Here, a "GetPrice" event would be sent to the price and logging Subscriptions as the logging subscription has chosen to receive all messages. A "GetInformation" event would be sent to the information and logging subscriptions.
The Azure cloud supports two different topic services: Azure Service Bus Topics and Azure EventGrid.
Azure Service Bus Topics
Sitting on top of the same robust brokered message model of Azure Service Bus queues are Azure Service Bus Topics
. A topic can receive messages from multiple independent publishers and send messages to up to 2,000 subscribers. Subscriptions can be dynamically added or removed at runtime without stopping the system or recreating the topic.
Many advanced features from Azure Service Bus queues are also available for topics, including Duplicate Detection
and Transaction support
. By default, Service Bus topics are handled by a single message broker and stored in a single message store. But, Service Bus Partitioning
scales a topic by spreading it across many message brokers and message stores. Scheduled Message Delivery
tags a message with a specific time for processing. The message won't appear in the topic before that time. Message Deferral
enables you to defer a retrieval of a message to a later time. Both are commonly used in workflow processing scenarios where operations are processed in a particular order. You can postpone processing of received messages until prior work has been completed.
Service Bus topics are a robust and proven technology for enabling publish/subscribe communication in your cloud-native systems.
Azure Event Grid
While Azure Service Bus is a battle-tested messaging broker with a full set of enterprise features, Azure Event Grid
is the new kid on the block.
At first glance, Event Grid may look like just another topic-based messaging system. However, it's different in many ways. Focused on event-driven workloads, it enables real-time event processing, deep Azure integration, and an open-platform - all on serverless infrastructure. It's designed for contemporary cloud-native and serverless applications
As a centralized eventing backplane
, or pipe, Event Grid reacts to events inside Azure resources and from your own services.
Event notifications are published to an Event Grid Topic, which, in turn, routes each event to a subscription. Subscribers map to subscriptions and consume the events. Like Service Bus, Event Grid supports a filtered subscriber model
where a subscription sets rule for the events it wishes to receive. Event Grid provides fast throughput with a guarantee of 10 million events per second enabling near real-time delivery - far more than what Azure Service Bus can generate.
A sweet spot for Event Grid is its deep integration into the fabric of Azure infrastructure. An Azure resource, such as Cosmos DB, can publish built-in events directly to other interested Azure resources - without the need for custom code. Event Grid can publish events from an Azure Subscription, Resource Group, or Service, giving developers fine-grained control over the lifecycle of cloud resources. However, Event Grid isn't limited to Azure. It's an open platform that can consume custom HTTP events published from applications or third-party services and route events to external subscribers.
When publishing and subscribing to native events from Azure resources, no coding is required. With simple configuration, you can integrate events from one Azure resource to another leveraging built-in plumbing for Topics and Subscriptions. Figure 4-17 shows the anatomy of Event Grid.
Figure 4-17. Event Grid anatomy
A major difference between EventGrid and Service Bus is the underlying message exchange pattern
Service Bus implements an older style pull model
in which the downstream subscriber actively polls the topic subscription for new messages. On the upside, this approach gives the subscriber full control of the pace at which it processes messages. It controls when and how many messages to process at any given time. Unread messages remain in the subscription until processed. A significant shortcoming is the latency between the time the event is generated and the polling operation that pulls that message to the subscriber for processing. Also, the overhead of constant polling for the next event consumes resources and money.
EventGrid, however, is different. It implements a push model
in which events are sent to the EventHandlers as received, giving near real-time event delivery. It also reduces cost as the service is triggered only when it's needed to consume an event – not continually as with polling. That said, an event handler must handle the incoming load and provide throttling mechanisms to protect itself from becoming overwhelmed. Many Azure services that consume these events, such as Azure Functions and Logic Apps provide automatic autoscaling capabilities to handle increased loads.
Event Grid is a fully managed serverless cloud service. It dynamically scales based on your traffic and charges you only for your actual usage, not pre-purchased capacity. The first 100,000 operations per month are free – operations being defined as event ingress (incoming event notifications), subscription delivery attempts, management calls, and filtering by subject. With 99.99% availability, EventGrid guarantees the delivery of an event within a 24-hour period, with built-in retry functionality for unsuccessful delivery. Undelivered messages can be moved to a "dead-letter" queue for resolution. Unlike Azure Service Bus, Event Grid is tuned for fast performance and doesn't support features like ordered messaging, transactions, and sessions.
Streaming messages in the Azure cloud
Azure Service Bus and Event Grid provide great support for applications that expose single, discrete events like a new document has been inserted into a Cosmos DB. But, what if your cloud-native system needs to process a stream of related events
? Event streams
are more complex. They're typically time-ordered, interrelated, and must be processed as a group. Azure Event Hub
is a data streaming platform and event ingestion service that collects, transforms, and stores events. It's fine-tuned to capture streaming data, such as continuous event notifications emitted from a telemetry context. The service is highly scalable and can store and process millions of events per second
. Shown in Figure 4-18, it's often a front door for an event pipeline, decoupling ingest stream from event consumption.
Figure 4-18. Azure Event Hub
Event Hub supports low latency and configurable time retention. Unlike queues and topics, Event Hubs keep event data after it's been read by a consumer. This feature enables other data analytic services, both internal and external, to replay the data for further analysis. Events stored in event hub are only deleted upon expiration of the retention period, which is one day by default, but configurable.
Event Hub supports common event publishing protocols including HTTPS and AMQP. It also supports Kafka 1.0. Existing Kafka applications can communicate with Event Hub
using the Kafka protocol providing an alternative to managing large Kafka clusters. Many open-source cloud-native systems embrace Kafka.
Event Hubs implements message streaming through a partitioned consumer model
in which each consumer only reads a specific subset, or partition, of the message stream. This pattern enables tremendous horizontal scale for event processing and provides other stream-focused features that are unavailable in queues and topics. A partition is an ordered sequence of events that is held in an event hub. As newer events arrive, they're added to the end of this sequence. Figure 4-19 shows partitioning in an Event Hub.
Figure 4-19. Event Hub partitioning
Instead of reading from the same resource, each consumer group reads across a subset, or partition, of the message stream.
For cloud-native applications that must stream large numbers of events, Azure Event Hub can be a robust and affordable solution.
About the Author: Rob Vettor is a Principal Cloud-Native Architect for the Microservice Enterprise Service Group. Reach out to Rob at
) or https://thinkingincloudnative.com/weclome-to-cloud-native/
| || | submitted by tokenclubtct to u/tokenclubtct [link] [comments]
Hello everyone, thank you for your continued interest and support. In the past two weeks, various tasks of TokenClub have been progressing steadily. The product development and community operation progress this week are as follows: 1. TokenClub Events 1)TokenClub & 499Block reached strategic cooperation in live broadcasting
On May 28th, TokenClub and 499Block reached a strategic cooperation to jointly build a live broadcast ecosystem in the vertical field of blockchain. 2)520e events
When 520 comes, TokenClub launches live interactive interaction. During the event, participate in interactive questions in the live broadcast room or forward the live poster to Twitter and the telegram group, and upload a screenshot to have the opportunity to extract 520, 1314 red envelope rewards
3)Text version of live content is abailable on Medium
In order to better understand the live broadcast of TokenClub by overseas communities, we translated the live broadcast content into English and uploaded it to TokenClub’s Medium official account, so that the community’s small partners can view it.
https://preview.redd.it/hhmu3pl506251.png?width=1080&format=png&auto=webp&s=fae9d42dcdee9d079219d1ffe612fc573bad01e8 4)Preview: TokenClub’s self-media grandma is invited to participate in the golden financial theme live event
From May 29th to June 4th, Golden Finance will hold a five-day live broadcast of the theme of “Finding Double Coins”. Grandpa Coin will express his views on June 3, welcome to pay attention.
2.TokenClub Live 1) Summary
Recently, Binance Co-founder He Yi, TRON founder Sun Yuchen, Hobbit HBTC founder Ju Jianhua, OSL chairman Dave, BlockVC founding partner Xu Yingkai, Outlier Ventures founder amie Burke, Bitribe founder SKY, CryptoBriefing CEO Han Kao , Huarai Group / Vice President, Global Market and Business Leader Ciara, Guosheng Securities Blockchain Research Institute Sun Shuang, Tongtongtong Research Institute CEO Song Shuangjie, Jin Tiancheng Law Firm Senior Partner Yu Bingguang, Binance China Jiang Jinze, principal researcher of Blockchain Research Institute, Meng Yan, vice president of Digital Asset Research Institute, co-founder of Primitive Ventures & director of Coindesk advisory board-Dovey Wan, founding partner of Genesis Capital & co-founder of Kushen Wallet Ocean Liao Yangyang, Binance C2C-Kathy, Binance OTC-Coco, Binance Contract & Options-Justin, Binance VIP-Jennifer, Binance Broker-Jess, Binance Mining Pool-Denny, Harbin Institute of Technology Blockchain Research Executive Deputy Director Xu Zhifeng, dForce founder Yang Mindao, Mars Finance co-founder Shang Silin, Cobo & Yuchi co-founder Shenyu, well-known investor Xu Zhe, CasperLabs CEO Mrinal Manohar, CasperLabs co-founder Scott Walker, Chairman of Rock Tree Omer Ozden, Nova Club incubation team leader & Waterdrop Capital partner Zheng Yushan, Rolling Stone miner founder Alex Lam, BitUniverse coin founder Chen Yong, Odaily Planet Daily founder and CEO Mandy Wang Mengdie, Binance stablecoin BUSD project responsible Helen Tu and senior expert of TokenClub blockchain and cryptocurrency investment strategy-Zao Shen talks with you about blockchain things ~
On May 18, Block 101 Binance Key Account Manager Luna talked to Primitive Ventures co-founder, non-profit bitcoin development fund Hardcore Fund executive director, and Coindesk advisory board director-Dovey Wan, to understand “C and C How is the Goddess of Crypto Assets made? “Dovey Wan shared with us on asset allocation, investment judgment, entrepreneurship, DCEP, etc.
On May 19, Block 101 Yingge talked with Sun Zeyu, the founding partner of Genesis Capital and co-founder of Kushen Wallet, to share the theme of “Blockchain Investment Experience”. This investor, who is rated as “reliable” by insiders, recommends that novices try not to touch contracts, do not stay overnight even when making contracts, be alert to risks, refuse gambling, and rationally analyze investments.
On May 20th, 499Block ’s two-year birthday carnival “Global Hot Chain, Keeping Together for Every Year” celebration was held in the TokenClub Live Room. The cross-border AMA Solitaire + popular day group anchor live video sharing, including Binance Co-founder He Yi, TRON founder Sun Yuchen, Hobbit HBTC founder Ju Jianhua, OSL chairman Dave, BlockVC founding partner Xu Yingkai, Outlier Ventures founder amie Burke, Bitribe founder SKY, CryptoBriefing CEO Han Kao, Huobi Group / Vice President Global Markets and Dozens of blockchain leaders from home and abroad, such as Ciara, the business leader, all appeared on the scene, and 499Block became a popular beauty angel group to help the interactive host.
On May 20, Sun Shuang, senior researcher of Guosheng Securities Blockchain Research Institute, Song Shuangjie, Jin Tong, CEO of Tongzhengtong Research Institute were jointly invited by Lingang Xinyefang, Lingang Innovation Management School, and Binance China Blockchain Research Institute. Tian Bingguang Senior Partner Yu Bingguang, Binance China Blockchain Research Institute Chief Researcher Jiang Jinze, Vice President of Digital Assets Research Institute Meng Yan, and many experts talked about the “Critical Digital RMB DCEP” in the live broadcast, one A feast of intertwined thoughts is worth watching again!
On May 21st, Ocean Liao Yangyang, the founder of Block 101 Seven Seven Dialogue Force Field, focused on the “big enlightenment era of digital assets”, Ocean shared with us his entrepreneurial experience, the first pot of gold, public chain, currency circle and Analysis of the current market. Regarding the future of Bitcoin, Ocean feels that he can work hard towards the direction of digital gold and become a substitute or supplement for gold. He is determined to see more, because the ceiling of the entire industry is very high, and he still cannot see its end point. The index level is rising, far from being over.
On May 22, “In the name of the Pizza Festival, we came to a different live broadcast” Bringing Goods “”, which was organized by the girls in the 101-day group of the block: June 6, July 7, Sisi, Yingge, Qianjiangyue , Dialogue: Binance First Sister, Binance C2C-Kathy, Binance OTC-Coco, Binance Contract & Options-Justin, Binance VIP-Jennifer, Binance Broker-Jess, Binance Mining Pool-Denny. We have explained to us one by one about C2C, OTC, contract options, etc. If you are interested, please move to the live room.
On May 22, Block 101 Sisi Dialogue Xu Zhifeng, executive deputy director of the Blockchain Research Center of Harbin Institute of Technology, shared the theme: “Strategy of Great Powers: Seizing New Highlands of Blockchain Technology”. He expressed his views on his own currency circle experience, entrepreneurship, blockchain technology, DECP, etc. Xu Zhifeng is very optimistic about the future development of blockchain. He said: “Ten years later, blockchain will become a very common industry. We are the Internet industry and have never changed.”
On May 23, the old Chinese doctor Zao Shen from the coin circle went online ~ The theme of this issue: If you want to be short, you must be able to sing first, and if you want to be long, you must be patient. If the meal is not fragrant, the game is not good, and the happiness of the past has drifted into the distance, just because the daily reading is still a loss, and the head is hurt. Don’t panic, the old Chinese doctor Zao Shen of the currency circle will adopt the Trinity Interventional Therapy and precise care to regenerate life. Don’t move quickly to the live room to see what “therapy” is.
On May 25, Block 101, July 7th conversation with dForce founder Yang Mindao, talked about “DeFi opportunities and challenges.” Yang Mindao believes that the four biggest benefits of DeFi are: programmability; non-custodial nature; non-licensing; composability. He believes that the current public chain market is seriously homogenized, and the most promising public chain is Ethereum. Ethereum is the best and largest in terms of developer group, ecology, and technological evolution, and can absorb the advantages of each public chain. At the same time, he is also extremely optimistic about DeFi, “DeFi application value is gradually verified, and the value of this type of token will gradually become more prominent.”
On May 26th, Mars Finance co-founder Shang Silin Hardcore Dialogue Cobo & Yuchi co-founder Shenyu and well-known investor Xu Zhe. The trend of “financialization” in the digital asset industry is becoming more and more obvious, and the friends of miners need to master more and more skills. Unveiling the mystery of hedging for everyone.
On May 26th, Nova Superstar Dialogue Phase 13 focused on the Silicon Valley star project CasperLabs, specially invited CasperLabs CEO Mrinal Manohar, CasperLabs co-founder Scott Walker, Rock Tree chairman Omer Ozden, and Nova Club incubation team leader Water Capital Partners Zheng Yushan, discuss CasperLbs together.
On May 26, Block 101 Sisi talked with the founder of the Rolling Stone Miner, Alex Lam, and took us into the “post-worker life” of a PhD in finance. Alex shared the reasons for entering the coin circle, the first pot of gold, mining, pitted pits, investment experience and opportunities in the digital currency industry. Alex said: Bitcoin exceeds US $ 100,000, and it will be in the second half of next year or the year after.
On May 27th, Block 101 Yingge talked with BitUniverse founder Chen Yong and shared the theme: “Who” needs grid trading. Chen Yong mainly introduced the currency trading tool of Bitcoin. In his view, grid trading has changed an investor’s concept-from stud into a batch of positions and positions. Regarding the price of Bitcoin, Chen Yong believes that the price of Bitcoin may reach one hundred thousand dollars around 2030.
On May 28, Block 101 Binance Mining Pool Wu Di talked to Mandai Wang Mengdie, founder of Planet Daily Odaily, to learn more about the process of “media entrepreneurs marching into the blockchain from venture capital circles”. Mandy believes that the core competence in the media industry is high-quality original content, which is the most basic but difficult to stick to. The initial focus of entering the mixed media industry of the dragon and dragon is to focus and amplify value.
On May 29th, Block 101 Qianjiangyue Dialogue Hellen Tu, the project leader of Binance Stablecoin BUSD project, talked with everyone about the stablecoin “Life and Death”, Hellen shared the stablecoin in detail, and published his own the opinion of. For details, please move to the live room.
On May 30th, Zaoshen came to share the theme: Dongfeng blowing, bullets flying, unlimited chase? In this issue, Zao Shen shared with you the recent international financial situation and various major events in the United States in the past week, which extended to the impact on the currency circle and answered various questions about investment strategies. Friends who want to know more details can move to the live room of Zao Shen. 3.TokenClub operation data -Live data:
13 live broadcasts in the past two weeks, with over 800,000 views. TokenClub hosted a total of 870 live broadcasts with a total of 45.06 million views. -Binary trade data:
In the past two weeks, guess the rise and fall to participate in a total of 1268 times, the amount of participation exceeded 2 million TCT. At present, it is guessed that the rise and fall function has participated in a total of 1.11 million times, with a cumulative participation amount of 498 million TCT. -Chat data:
In the past two weeks, a total of 19271 messages have been generated. A total of 4.85 milliom messages have been launched since the function was launched. -Mini-game data:
The mini-game has participated in a total of 4212 times in the past two weeks. A total of 1,66 million self-functions have been online. -Cut leeks game data together:
Since the game was launched, the total number of user participation in the game was 962612 TCT total consumption was 6,27 million gift certificate total consumption was 15,95million and TCT mining output was 161496. -TokenClub KOL data:
Over the past two weeks, the total reading volume of the BTCGrandpa article has been viewed by more than 300,000 people. -Social media data:
At present, the number of Weibo official accounts is 18033 and the number of Twitter followers is 1332 and we have opened the official Medium account this week, welcome to follow. -Telegram official group data:
In the past 2 weeks, there were 238 chats in the group, and the total number of Telegram official groups is currently 2906. -Medium data:
Medium official account u/TokenClub
has published 5 excellent articles, official announcements and updates are published in English, welcome to follow. 4.Communities 1)Overseas Community
TokenClub held an event for forwarding Twitter and telegram group chats for overseas users. Bitcoin halved in less than two weeks, overseas users are more active in the telegram group, and some friends are more concerned about Binance Block 101 live broadcast, aggregation exchange, TCT usage and other issues, the administrator responded in time.On May 12th, when Bitcoin was halved, TokenClub organized a forwarding Twitter, telegram group chat prize event and participating in a live question asking interactive prize event for overseas users. There are many live broadcast events in the near future. The live broadcast poster information will be released to overseas users as soon as possible. The follow-up TokenClub will translate and broadcast high-quality live broadcast content to Twitter and Medium. Bitcoin halved, overseas users are more active in the telegram group, and some partners are more concerned about block 101 live broadcast, bitcoin future price trend, TCT usage and other issues, the administrator responded in time in the group.
https://preview.redd.it/2nrknnyo06251.png?width=1080&format=png&auto=webp&s=fb98b385c0caf7e65c7b3b2bb1edd782ec126905 2)Domestic community
Sweet Orange Club Weekly News
Last Friday, a holiday, the community opened the red envelope rain event, and brought a sincere gift to everyone while relaxing in the holiday. At the same time, it also sent the most sincere blessings to all mothers in the community on Mother’s Day. Thank you for your long-term support and help to the Orange Club community.
Hundred-day scheduled investment event (Phase II)
The fourth week of the second 100-day fixed investment plan held this week has been awarded, and everyone is still very active in this event. This week, the Bitcoin halving market was also opened in advance. The small partners participating in the fixed investment should now have a certain floating win, so we adopt the correct cycle investment strategy to believe that it can bring unexpected benefits to everyone.
Sign in the lottery.
On the evening of May 3rd and May 10th, TCT Fortune Free Academy carried out the 51st and 52nd week sign-in sweepstakes, and rewarded the small TCT partners who had always insisted on signing in. In these two sign-in sweepstakes, the lucky friends received 20–180TCT as a reward. In addition, during the lucky draw, the college friends also actively expressed their opinions on the topic of this year’s bull market.
The Leek Paradise Community Conference will continue as usual every Sunday at 20:00. During the conference, members will discuss recent hot topics, including gifts and blessings for Mother ’s Day, and the halving of Bitcoin everyone is paying attention to. At the end, the friends in the group also showed a rare enthusiasm at the first sight. It seems that the market still affects the mood. The members routinely started a red envelope rain to cheer for the participating partners and encourage everyone to maintain patience and confidence. Of course, at the same time, we are encouraging ourselves to see the community meeting next week. Come on!
TokenClub volunteer community, sign in red envelopes every day, as long as you sign in every day, you can get good benefits, friends join us quickly! In the past two weeks, the community has conducted active partners.
Volunteer community: Change to the currency circle consultation and pass the analysis of Grandma Coin and Panda analysts, support TokenClub in action, and continue to vote for TCT. In the last month, we have worked hard to learn the rain god’s strategy. We have doubled the coins in our hands. The community WeChat group has recently injected fresh students. We look forward to more people joining! Volunteer community, will continue to work hard for TokenClub
TCT has been listed on Binance、Okex、Gate.io、ZB-M、MXC、Biki、Coinex、BigOne、Coinbene、Cybex、SWFT、Loopring、Rootrex etc.
TokenClub website: www.tokenclub.com
Interactive Brokers (IBKR) was established about 40 years ago. This company is well known for supporting international trading. This company is presenting a universal portal through which its clients can make business in over 24 countries and on more than 100 market centers. It is an international company that makes trading as easy as it Options involve risk and are not suitable for all investors. For more information read the "Characteristics and Risks of Standardized Options". For a copy call Interactive Brokers' Client Services on 312-542-6901. 20 Best Binary Options Brokers 2020: This is a review of some of the best binary options brokers. The review is essentially a binary options brokers list 2020. The review will give you a deeper understanding of how they operate. The review seeks to arm you with relevant information before you get involved with binary options. Binary options demo accounts are the best way to try both binary options trading, and specific brokers’ software and platforms – without needing to risk any money. You can get demo accounts at more than one broker, try them out and only deposit real money at the one you find best. It can also be useful to have accounts at more than one broker. Currently, there are more than 400 trading platforms or brokers. This was not the case in 2008 when binary options trading started since there were about 10 trading platforms. The emergence of many brokers has been good since it has created high competition, which is beneficial to investors in terms of more bonuses and high
At this time, traders at binary options brokers can trade in ninety+ different types of underlying property. They consist of a selection of currency pairs, current market indices, stocks and ... Interactive Brokers options trading tutorial where we create an "options watchlist" and arrange TWS Mosaic to place options trades. 🎈 Start your 14-day free ... We also have arranged trading platforms toplists with rankings of the Best Binary Options Brokers. Loading... Autoplay When autoplay is enabled, a suggested video will automatically play next. 1. IQ Option 2. Binary.com 3. HighLow When you start trading in binary options, one of the most important decisions is in choosing the right broker. This is a task we have made easy for you since ... How to setup Interactive Brokers for Options Trading. Interactive brokers is a great platform for trading options strategies for monthly income because of it...