Information gathering from Ethereum Node
445 USD A script needs to be written that will collect information in real-time from an Ethereum Node about several smart contracts of a decentralized exchange (DEX)
It will be necessary to gather information about pairs, age, volume, liquidity, market cap
approximately like DEXScreener does
https://dexscreener.com/ethereum/pancakeswap (example)
Also, for each token, information about it and all transactions.
All this will need to be stored in a database.
I am ready to consider the option of taking data from some ready-made APIs like Etherscan, but it is better to connect directly to the node.
It will be necessary to index all historical data, and then enable the script to constantly run and process new transactions.
Please send some relevant examples that show you have done something similar and have experience working with Ethereum.
Client's review of cooperation with Anastasiia D.
Information gathering from Ethereum NodeAnastasia completed the task with a score of 10/10
She carefully consulted before executing the project, delving into the essence of the task, and suggested solutions that allowed for significant savings on SaaS/PaaS services.
During the execution process, she answered all questions, adapted solutions to the objective reality, and navigated all the pitfalls that arose.
The final technical solution came with a deployment instruction.
Freelancer's review of cooperation with Aleks Metsger
Information gathering from Ethereum NodePolite client. Good payment, reasonable deadlines. Shows genuine interest in the development process, in a positive way. We will continue to work together!
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Winning proposal6 days445 USD
442 3 2 Winning proposal6 days445 USD
Hello, Alex, let's take turns.
The API is expensive, and it will be more efficient to do everything through nodes. The task, in general, is not complicated; first, we parse surface data, pairs of tokens, and then the actual token data. The key point here is the availability of archival nodes. If they are available, it's just routine work. Although tedious and requiring attention to many small details.
Depending on the speed of development, it will be faster to implement on NodeJS (ethers module), but the parsing speed will be slightly slower than if implemented, for example, in Zig (a new form of C++, faster and simpler). However, developing a pure JSON RPS API takes a long time. This will be a fast solution in itself. If the task is a one-time data parsing, it will certainly be cheaper to use NodeJS. If it's regular parsing - then it's Zig.
From my work experience. I was directly involved in the development at lotusmarket.io in implementing a practically similar task. I can confirm this in personal communication. I think this is an undeniable argument in terms of reliability and quality. I am currently a Senior Blockchain Developer.
The price depends on the number of DEXs (like on dexscreener); the more DEXs, the more expensive it is. In terms of deadlines and price, I indicate the price and maximum deadline for the NodeJS solution and DEXs PancakeSwap and Uniswap (they are the same for parsing). I would be happy to collaborate with you!
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7 days267 USD
1970 45 3 1 7 days267 USD
Ready to start working, I will write the necessary functions in Python. I will do everything with quality and am always available. I look forward to collaborating with you!
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Здравствуйте, Алекс, прошу ответить на вопрос. У вас есть архивные ноды?
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Є парсер для dextools
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