github.com/lbryio/lbcd@v0.22.119/database/README.md (about)

     1  database
     2  ========
     3  
     4  [![ISC License](http://img.shields.io/badge/license-ISC-blue.svg)](http://copyfree.org)
     5  
     6  Package database provides a block and metadata storage database.
     7  
     8  Please note that this package is intended to enable btcd to support different
     9  database backends and is not something that a client can directly access as only
    10  one entity can have the database open at a time (for most database backends),
    11  and that entity will be btcd.
    12  
    13  When a client wants programmatic access to the data provided by btcd, they'll
    14  likely want to use the [rpcclient](https://github.com/lbryio/lbcd/tree/master/rpcclient)
    15  package which makes use of the [JSON-RPC API](https://github.com/lbryio/lbcd/tree/master/docs/json_rpc_api.md).
    16  
    17  However, this package could be extremely useful for any applications requiring
    18  Bitcoin block storage capabilities.
    19  
    20  The default backend, ffldb, has a strong focus on speed, efficiency, and
    21  robustness.  It makes use of leveldb for the metadata, flat files for block
    22  storage, and strict checksums in key areas to ensure data integrity.
    23  
    24  ## Feature Overview
    25  
    26  - Key/value metadata store
    27  - Bitcoin block storage
    28  - Efficient retrieval of block headers and regions (transactions, scripts, etc)
    29  - Read-only and read-write transactions with both manual and managed modes
    30  - Nested buckets
    31  - Iteration support including cursors with seek capability
    32  - Supports registration of backend databases
    33  - Comprehensive test coverage