IP2Location-Elixir

Interface for accessing IP2Location Binary Format databases. This is unstable software, and not officially vetted by IP2Location or anybody else. You have been warned.

Implementation details

This is mostly a port of the official Erlang library, with three main differences:

• It uses binary strings instead of charlists (as is common with Elixir libraries).
• It returns structs instead of records (again, as usual).
• It accepts the raw binary rather than directly using file IO, giving a very small speed bonus at a massive memory cost. This library is therefore almost useless except for regional databases. Due to how large binaries are stored in the BEAM VM heap (using refcounting), once you load a binary database it should be safe to send it across processes without memory copying.

Installation

If available in Hex, the package can be installed by adding ip2location_elixir to your list of dependencies in mix.exs:

def deps do
  [{:ip2location_elixir, "~> 0.1.0"}]
end

Usage

# Load your file
raw = File.read!("path/to/database.bin")

# Prepare headers for use
db = IP2Location.read_database(raw) 

# Alternatively you can just use the `open_database!/1` shortcut
# db = IP2Location.open_database!("path/to/database.bin") 

# Grab your stuff
%IP2Location.Record{city: city} = IP2Location.query(db, "some IP")

License

See LICENSE