max-lt / blk-reader

Efficiently read and extract data from Bitcoin Core blk files.

blk-reader

Efficiently read and extract data from Bitcoin Core blk files.

Pre-requisites

In order to run the examples, you need to have the blk files from the Bitcoin Core data directory and edit the permissions to allow the current user to read the files.

sudo chmod 664 /path/to/blk/dir/blk*

Examples

To build examples, run:

cargo build --examples --release

To run examples, use the following commands:

./target/release/examples/<example-name> /path/to/blk/dir <args>

or 

cargo run --example <example-name> /path/to/blk/dir <args>

list-blocks

Usage: list-blocks <blk-dir> [--max-blocks <max-blocks>] [--max-files <max-block-files>]

list-blocks /path/to/blk/dir --max-blocks 10

list-non-standard

list-non-standard /path/to/blk/dir --max-blocks 100000

Note: Block are indexed from 0, so if you want to read up to block 100000 inclusive, you need to pass --max-blocks 100001.