Encode query with Ruby

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Contents 1 Summary 2 Description 3 Sample program 4 Link

Summary

Result may not be able to be retrieved normally, if query including non alphanumeric character is used with Ruby.

Description

You have to encode your query. If qPath is a query to be encoded, please do as follows.

require 'cgi'
CGI.escape(qPath);

Sample program

This tutorial introduces a example that retrieve entries which feature-key is 'rRNA', qualifier name is 'product' and has '16s ribosomal RNA' in qualifier value with searchByXMLPath of ARSA.
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require "socket"
require 'cgi'

#set hostname
host = "xml.nig.ac.jp"
#set port
port = "80"
#set pass
path = "/rest/Invoke"
#set query



qPath = "/ENTRY/DDBJ/feature-table/feature/f_key=='rRNA' AND ";
qPath += "(/ENTRY/DDBJ/feature-table/feature{/f_key=='rRNA' AND ";
qPath += "/f_quals/qualifier{/q_name=='product' AND /q_value='16S ribosomal RNA'}}) ";
rPath = "/ENTRY/DDBJ/primary-accession,/ENTRY/DDBJ/definition";
CGI.escape(qPath);
CGI.escape(rPath);

offset = "1";
count = "10";

query = "service=ARSA&method=searchByXMLPath&queryPath=" + qPath + "&returnPath=" + rPath + "&offset=" + offset + "&count=" + count;

#make connection
socket = TCPSocket.open(host,port)

#send query
socket.write "POST "+ path + " HTTP/1.0\n"
socket.write "User-Agent: ruby/socket\n"
socket.write "Content-Type: application/x-www-form-urlencoded\n"
socket.write "Content-Length:" + query.size.to_s +  "\n\n"
socket.write query

#get result
while s=socket.gets
	print(s)
end
socket.close

Link

Japanese page