How can I access data stored in blockchain database like BigchainDB using a smart contract in Ethereum?

  • A smart contract cannot interact with out of chain resources. To achieve that you have to use an oracle or similar. Read this ethereum.stackexchange.com/questions/85178/….
    – Ismael
    Sep 19, 2022 at 15:08
  • Thank you @Ismael Can you point me to appropiate resources because I have no idea where to start.I mean I understood we need to make use of Oracle service but I'm searching for some code snippets that does this ETH contracts and bigchainDB integration.I'm currently working on developing a DApp using BigchainDB as the storage layer so that I can use the DApp for query purposes as well. I know how to integrate smart contract and ipfs(as the storage) but If I use ipfs I may not be able to design a query service using the Dapp. BigchainDB gives us that query facility. Sep 21, 2022 at 7:56
  • It is not that complicated. You can start from here ethereum.stackexchange.com/questions/11589/….
    – Ismael
    Sep 21, 2022 at 13:22


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