Copyright (c) 2014 - 2015 Robin Leffmann

RPC Ace is a simple alternative block explorer written in PHP. It interacts with block chains entirely via RPC, either against a locally running wallet/daemon or remotely over the Internet, and offers optional database storage for quickly accessing previously processed blocks and transactions.

The lightweight nature of RPC Ace comes with a few drawbacks - most notably, the explorer cannot keep track of addresses or total coins generated, and as it uses RPC calls to parse blocks a transaction-heavy block chain (such as Bitcoin) can incur heavy CPU usage and/or long page generation times the first time a set of blocks is parsed. RPC Ace's primary use is quick access to oversight of a block chain; for in-depth needs it's recommended to run a tallying explorer such as Abe.

RPC Ace should work with any block chain regardless of what proof-of-work algorithm is used, and has been tested to work with Bitcoin, Litecoin, Dogecoin, Solcoin and a few other block chains, but as it's still at an early stage it may contain bugs. Version 0.6.5 introduced PoS support, which has been tested against a number of popular PoS block chains.

Version 0.7.0 introduced optional JSON output through a rewrite of the codebase which split the project into an example block explorer and a class, RPCAce, with two functions, get_block and get_blocklist, for returning a PHP array or JSON of a block's details and a summarized list of blocks respectively. This change allows for removing the example block explorer of RPC Ace in order to use the RPCAce class on its own for processing and presenting block chain data in other ways.

Version 0.8.0 introduced optional database storage via SQLite, offering faster page generation and reduced burden on the node serving RPC requests to the explorer.

RPC Ace (and the extras) requires PHP version 5.4 or later, with CURL and JSON support enabled. Additionally, SQLite and zlib support is required to use the database storage feature.

Place rpcace.php and easybitcoin.php (get it here) together in your web directory. The first few lines of rpcace.php defines its configurable parameters:

RPC_HOST = '127.0.0.1'              // Host/IP for the daemon
RPC_PORT = 12345                    // RPC port for the daemon
RPC_USER = 'username'               // 'rpcuser' from the coin's .conf
RPC_PASS = 'password'               // 'rpcpassword' from the coin's .conf

COIN_NAME = 'Somecoin'              // Coin name/title
COIN_POS = false                    // Set to true for proof-of-stake coins

RETURN_JSON = false                 // Set to true to return JSON instead of PHP arrays
DATE_FORMAT = 'Y-M-d H:i:s'         // Date format for blocklist
BLOCKS_PER_LIST = 12                // Number of blocks to collect for the blocklist

DB_FILE = 'db/somecoin_db.sq3';     // Set to false to disable database storage

// for the example explorer
COIN_HOME = 'http://www.coin.org/'  // Coin website
REFRESH_TIME = 180                  // Seconds between automatic HTML page refresh

For databaste storage it usually suffices to create a directory that is owned and writable by the user the httpd process runs under, and pointing the DB_FILE setting to a suitable filename inside that directory.

To get accurate transaction values your block chain must be reindexed (or built from scratch) with full transaction indexing, by setting txindex=1 in the coin's .conf file.

Additional help and advice might be found in the official thread on the BitcoinTalk forum: https://bitcointalk.org/index.php?topic=686177.0

tally.php generates a "richlist". Usage: configure user/pass/host/port in the beginning of the file, and then run from command line: php tally.php <output>. Accurate results require the block chain being built with full transaction indexing. Avoid storing tally.php in your web directory where users may run it remotely, as it can be very time- and CPU-consuming when parsing long block chains.

When finished parsing blocks, tally.php will output its progress to a file named RPCUSER-RPCPORT-tally.dat which will be used to resume operations next time tally.php runs in order to avoid having to start over from block 1 when updating a list. Aborting the script while running by pressing CTRL+C will also save the progress file for later use.

BTC: 1EDhbo9ejdKUxNW3GPBh1UmocC1ea1TvE5
LTC: LaDuRFwEt1V26pmJJH94auDvxqN3rRFqPj
DOGE: DJ7vQ1dNRfebb1umVHsHxoMcd2Zq5L6LKp
VTC: VwDmyMR5udPkEwTJhxDsUB2C3mk8NKCSD8
DRK: XvHfibq2f1xU6rYqAULVXHLPuRhBawzTZs

RPC Ace is released under the Creative Commons BY-NC-SA 4.0 license: http://creativecommons.org/licenses/by-nc-sa/4.0/