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node.jsbitcoinblockchain

How to query blockchain bitcoin locally

I downloaded 122 gb file of the complete blockchain to my computer with the download of the bitcoin core wallet. I would like to query against it locally using preferably node.js.

Any idea how I can do this?

Solution

  • You can use json RPC provided by bitcoin core.

    You can call http calls via node.js.

    see below.

    https://en.bitcoin.it/wiki/API_reference_(JSON-RPC)#Node.js

    or there are other third party libraries.

    https://bitcoinjs.org/

    which are wrappers of above RPC calls.