IOSG 2021-06-18 18:51:01 阅读数:684
The original title | Why is the data index service of middleware worth paying attention to ？
The middleware of blockchain generally includes ： Data management 、 Application services 、 Authentication and API Management module , They are software that the application layer provides a series of services and functions for development support , Developers can develop applications more efficiently with their help . Data index belongs to data management middleware .
Although data from the blockchain is publicly accessible , But getting useful information from the raw data on the chain requires additional standardization （ Data Extraction 、 analysis 、 Standardization ）. let me put it another way , The data index service provider on the chain can comb the disordered raw data on the chain into user-friendly and readable standardized data （ Here's the picture ）.
From blockchain raw data to user readable visual graphics
The middleware of blockchain generally includes ： Data management 、 Application services 、 Authentication and API Management module , They are software that the application layer provides a series of services and functions for development support , Developers can develop applications more efficiently with their help .
Data index 、 data storage 、 The three modules of Oracle belong to data management middleware . Data storage and Oracle have already gained a lot of attention in the market , A large number of project and technology iterations appear in these two directions , The market for data indexing services has not been very hot before . But look back DeFi In the bull market The Graph Business volume of data index items represented by （ data API Call the number ） Rapid growth , We realize that there will be more high-quality projects in this area in the future .
Although data from the blockchain is publicly accessible , But getting useful information from the raw data on the chain requires additional standardization （ Data Extraction 、 analysis 、 Standardization ）. let me put it another way , The data index service provider on the chain can comb the disordered raw data on the chain into user-friendly and readable standardized data .
At present, the core user groups and requirements of such services include ：
Blockchain data index &API At present, the service market mostly adopts the SaaS Pattern , The current market size is not big , Therefore, it is difficult to unilaterally estimate the market size of data indexing service .
But according to The Block stay 2020 Survey and statistics of the whole blockchain data service industry in （ Include ： Data index and API service 、 Customized products 、 Tools ）, At present, the market scale is about 5000 About ten thousand dollars . At present, the scale of the global traditional financial information market accounts for about 3 / 10000 of the global assets under management , If we estimate it on this scale , We think that the future of the whole data service industry on the chain 5 There will be 10-20 Double the growth space , The blockchain data service industry will be able to 3-5 It will reach 10 A market size of 100 million US dollars （Tim Rice (Coinmetrics CEO)、 Mike Alfred(Digital Asset Data CEO) I have expressed similar views ）, And the corresponding sub areas —— Data index and API There's a lot of room for imagination in service .
The technology of data index on the chain is similar to that of traditional cloud service application API similar —— Through a system running on the front end of the user's device , Provide the data you need effectively . But the difference between the two lies in the traditional API It's run by an economic entity , Users have no say ; The data index items on the chain are composed of decentralized index nodes , They can compete with each other in terms of content and price , Let users enjoy better service at a fairer price .
At present, the two most famous data index items of Ethereum are undoubtedly The Graph and Dune Analytics. Even though The Graph It's a token economy, and Dune It's a walk SaaS Pattern （ Users can enjoy the service for a subscription fee ）, But the two projects work in a similar way （ Here's the picture ）： They define and classify the monitored Ethereum smart contract events , And then it's stored in the database in a standardized format , So that users can grab and use the database .
The working principle of data index on the chain
From up chain to down chain vs Chain down to chain up ？
From the perspective of blockchain middleware , One interesting thing we can find is ： There are similarities and differences in business models between on chain data index service providers and on chain oracle . Take two track head Events The Graph and Chainlink For example, compare the similarities and differences ：
The difference is ,Chainlink Enable the scene on the chain by calling the data outside the chain ,The Graph It is to extract the data on the chain into readable mode and enable the scene outside the chain .
The same thing , The data index service provider on the chain and the oracle on the chain belong to the data service middleware , Both events have developed a head advantage in their respective tracks , Building communities 、 Hold the hacker pine incubation project , More practical application scenarios , Gradually consolidate their middleware infrastructure status .
Future development forecast
SaaS Pattern ： After market research and investigation , We think blockchain data index and API Service SaaS Business model development time will experience more than original token Enabling service providers have longer cycles , The main reason is that in order to create a large amount of revenue, this model needs a large number of development or business analysis needs of large and medium-sized enterprises in the market as support , But a good sign is that there have been several big financing and M & A cases this year , It proves that the traditional financial information industry is also paying attention to this field , It's just a matter of time .
Token Pattern ：Token The enabled data indexing service has been proved by successful cases , The number of monthly calls of the head events of this track is DeFi At the top of the bull market API The number of calls can reach 200 100 million times / month , The volume of business has increased since a year ago 20 More than times . We expect that with the prosperity and growth of Multi Chain Ecology , Other data indexing services on the chain will also emerge （Polkadot Similar projects have appeared on the public chain ）; meanwhile , In future product iterations , Adding more visual data functions will be the direction for entrepreneurs to develop .