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wakgill
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44 lines
1.6 KiB
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---
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layout: forum
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title: 'Command Line and JSON-RPC'
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grand_parent: Forum Posts
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parent: Bitcoin Forum
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nav_order: 67
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date: 2010-02-23 22:15:41 UTC
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original: https://bitcointalk.org/index.php?topic=63.msg452#msg452
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---
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# Command Line and JSON-RPC
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---
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```
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Command Line and JSON-RPC
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February 23, 2010, 10:15:41 PM
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Version 0.2.6 on SVN can now run as a daemon and be controlled by command line or JSON-RPC.
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On Linux it needs libgtk2.0-0 installed, but does not need a GUI running. Hopefully gtk can be installed without having a windowing system installed.
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The command to start as a daemon is:
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bitcoin -daemon [switches...]
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Or, to run the UI normally and also be able to control it from command line or JSON-RPC, use the "-server" switch.
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bitcoin -server [switches...]
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With either switch, it runs an HTTP JSON-RPC server that accepts local socket connections on 127.0.0.1:8332. The port is bound to loopback and can only be accessed from the local machine, but from any account, not just the user it's running under.
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To control it from the command line, the interface is a command name without any switches, followed by parameters if any.
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bitcoin <command> [params...]
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For example:
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bitcoin getinfo
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bitcoin getdifficulty
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bitcoin setgenerate true
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bitcoin stop
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It's a simple JSON-RPC client and prints the JSON result. Look at rpc.cpp for the list of commands.
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Web apps or anything automated will normally use JSON-RPC directly, not command line. There are JSON-RPC libraries for all the major languages. In script languages like PHP and Python the syntax is as natural as calling a local function.
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```
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