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Listing transactions in a private blockchain?

In a private blockchain, is it possible to list the transactions based on from and to parameters in a transaction. Is it possible to check the latest transaction from or to an address? Also, is it ...
galahad's user avatar
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2 votes
1 answer
1k views

Asynchronously querying the block chain

This question is related to this one or this one. There is a tutorial here that shows some filtering examples but it doesn't get into transaction level granularity. Can we query the block chain by ...
Sebi's user avatar
  • 5,284
5 votes
2 answers
3k views

Index and query blockchain data and levelDB

Would it be more performant to query the blockchain data directly through the underlying database levelDB instead of using the provided geth api? How would it be possible? Can I just index the ...
jeff's user avatar
  • 603
4 votes
2 answers
7k views

How to query local Ethereum blockchain for a specified transaction?

I want to find specified transaction. How can I query my local Ethereum blockchain from the console?
gkucmierz's user avatar
  • 783
3 votes
1 answer
600 views

Fetching InternalType data from another contract

basically I have this ABI for a contract {"internalType":"bytes","name":"_DATA","type":"bytes"}],"name":"function","...
teggr234's user avatar
0 votes
3 answers
541 views

How can I query the onchain data on the ethereum blockchain without using any APIs?

I want to get all the onchain data available on the Ethereum blockchain about an NFT from its contract address and tokenID. Like its metadata, the current owners, its last price, etc. How can I do ...
amam's user avatar
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