arangodb_save_all.rb

require 'net/http'
require 'json'

DB_USER = '<your_user>'.freeze
DB_PASS = '<your_password>'.freeze
DB_ENDPOINT = 'http+tcp://0.0.0.0:8529'.freeze
DUMP_PATH = '/path/to/your/dump/folder/'.freeze # must exist
DB_URL = 'http://0.0.0.0:8529'.freeze

uri = URI(DB_URL + '/_api/database')
req = Net::HTTP::Get.new(uri)
req.basic_auth DB_USER, DB_PASS
res = Net::HTTP.start(uri.hostname, uri.port) {|http|
  http.request(req)
}
results = JSON.parse(res.body)['result']
results.each do |result|
  system("arangodump --output-directory #{DUMP_PATH}#{result} --include-system-collections true --server.endpoint #{DB_ENDPOINT} --server.username #{DB_USER} --server.password #{DB_PASS} --overwrite true --server.database #{result}")
end