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I want to implement a product, similar to DexTools/Dexscreener

https://dexscreener.com/ https://dextools.io/

Tracking and charting your DEX in realtime. How should I obtain transaction data？ Where do you get the data source？

Mysayoshi
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I believe, anybody correct me if Im wrong because I never done it before, that you would have to use a dex api (dezentralized exchange api) such as bitquery to fetch the data:

https://bitquery.io/products/dex

I am sure that there are many APIs like that. It might be a bit of a learning curve to use them.

a6i09per5f
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  • And I believe that most of these APIs use graphql (https://graphql.org/) as the query language. – a6i09per5f May 19 '22 at 17:01
  • Here is actually a bitquery tutorial on how to do that (with graphql): https://bitquery.io/blog/ethereum-dex-graphql-api . And then there is graphQL.js which lets you use graphQL with javascript. It also looks like that bitquery is free with the developer version: https://bitquery.io/pricing . It will definitely be a bit of a learning curve though. But it's always like that. Good luck and happy coding. – a6i09per5f May 19 '22 at 17:05
  • Thank you sir. Companies like BitQuery, I want to know, where do they get their data, how do they integrate their data? This is the real data source – Mysayoshi May 21 '22 at 08:39
  • Oh i coudlnt tell you that. I can look it up. Maybe bitquery or other dex software are opensource and you can check it there. Why do you need that tho? I thiught h just wanted to create a software similar to dex scanner – a6i09per5f May 21 '22 at 09:31
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I believe it is achieved using the event logs of contracts. For example, a Uniswap LP pair has events and the factory contract has events of new pairs being created. From there you could poll the events with websockets or something else.

RKirk
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Blockin.ai is a Node-as-a-service Provider, as well as RPC Endpoints, & API Provider as well. They support 22+ different Blockchains currently.

They have a free subscription plan for individual users, and an Enterprise tier for more on demand applications.

Matthew Matt Mobley
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