J-Quants API のRubyサンプル

J-Quants API のサンプルコードがCurlとPythonのみだったのでRubyのサンプルコードを作ってみました。

J-Quants APIについての詳細は以下を参照して下さい。
https://jpx.gitbook.io/j-quants-ja/

require 'uri'
require 'net/http'
require "json"

EMAIL_ADDRESS = <Your email address>
PASSWORD = <Your password>
CODE = '2503' #銘柄コード
DATE = '2023-11-29' #基準日付
DATE_FROM = '2023-12-01' #from日付
DATE_TO   = '2023-12-05' #to日付
HOLIDAYDIVISION = 1

def jquants()
  p '--- リフレッシュトークン取得 ---'
  refresh_token = auth_user(EMAIL_ADDRESS, PASSWORD)  
  p '--- IDトークン取得 ---'
  id_token = auth_refresh(refresh_token)

  p '--- 上場銘柄一覧 ---'
  p listed_info(id_token, CODE, DATE)
  p '--- 株価四本値 ---'
  p daily_quotes(id_token, CODE, DATE, DATE, nil)
  p '--- 財務情報 ---'
  p fins_statements(id_token, CODE, DATE)
  p '--- 決算発表予定日 ---'
  p fins_announcement(id_token)
  p '--- 取引カレンダー ---'
  p trading_calendar(id_token, HOLIDAYDIVISION, DATE_FROM, DATE_TO)

end
  
jquants

リフレッシュトークン取得(/token/auth_user)

def auth_user(mailaddress, password)

  uri = URI.parse('https://api.jquants.com/v1/token/auth_user')
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = uri.scheme === "https"

  params = { mailaddress: mailaddress, password: password }
  response = http.post(uri.path, params.to_json)
  refreshToken = ''
  refreshToken = JSON.parse(response.body)['refreshToken'] if response.code == '200'
end

IDトークン取得(/token/auth_refresh)

def auth_refresh(refresh_token)
  uri = URI.parse("https://api.jquants.com/v1/token/auth_refresh?refreshtoken=#{refresh_token}")
  req = Net::HTTP::Post.new(uri)
  
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = uri.scheme === "https"
  response = http.request(req)
  idToken = JSON.parse(response.body)['idToken'] if response.code == '200'
end

上場銘柄一覧(/listed/info)

def listed_info(id_token, code=nil, date=nil)

  uri = URI.parse("https://api.jquants.com/v1/listed/info")
  if !code.nil? or !date.nil?
    params = {}
    params.store(:code, code) if !code.nil?
    params.store(:date, date) if !date.nil?
    uri.query = URI.encode_www_form(params)
  end

  headers = {Authorization: "Bearer #{id_token}" }
  req = Net::HTTP::Get.new(uri)
  req.initialize_http_header(headers)
  
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = uri.scheme === "https"
  response = http.request(req)
  JSON.parse(response.body) if response.code == '200'
end

株価四本値(/prices/daily_quotes)

def daily_quotes(id_token, code=nil, date=nil, from=nil, to=nil)

  uri = URI.parse("https://api.jquants.com/v1/prices/daily_quotes")
  if !code.nil? or !date.nil? or !from.nil? or !to.nil?
    params = {}
    params.store(:code, code) if !code.nil?
    params.store(:date, date) if !date.nil?
    params.store(:from, from) if !from.nil?
    params.store(:to, to) if !to.nil?
    uri.query = URI.encode_www_form(params)
  end

  headers = {Authorization: "Bearer #{id_token}" }
  req = Net::HTTP::Get.new(uri)
  req.initialize_http_header(headers)
  
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = uri.scheme === "https"  
  response = http.request(req)
  JSON.parse(response.body) if response.code == '200'
end

財務情報(/fins/statements)

def fins_statements(id_token, code=nil, date=nil)

  uri = URI.parse("https://api.jquants.com/v1/fins/statements")
  if !code.nil? or !date.nil?
    params = {}
    params.store(:code, code) if !code.nil?
    params.store(:date, date) if !date.nil?
    uri.query = URI.encode_www_form(params)
  end

  headers = {Authorization: "Bearer #{id_token}" }
  req = Net::HTTP::Get.new(uri)
  req.initialize_http_header(headers)
  
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = uri.scheme === "https"
  response = http.request(req)
  JSON.parse(response.body) if response.code == '200'  
end

決算発表予定日(/fins/announcement)

def fins_announcement(id_token)

  uri = URI.parse("https://api.jquants.com/v1/fins/announcement")

  headers = {Authorization: "Bearer #{id_token}" }
  req = Net::HTTP::Get.new(uri)
  req.initialize_http_header(headers)
  
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = uri.scheme === "https"
  response = http.request(req)
  JSON.parse(response.body) if response.code == '200'  
end

取引カレンダー(/markets/trading_calendar)

def trading_calendar(id_token, holidaydivision=nil, from=nil, to=nil)

  uri = URI.parse("https://api.jquants.com/v1/markets/trading_calendar")
  if !holidaydivision.nil? or !from.nil? or !to.nil?
    params = {}
    params.store(:holidaydivision, holidaydivision) if !holidaydivision.nil?
    params.store(:from, from) if !from.nil?
    params.store(:to, to) if !to.nil?
    uri.query = URI.encode_www_form(params)
  end

  headers = {Authorization: "Bearer #{id_token}" }
  req = Net::HTTP::Get.new(uri)
  req.initialize_http_header(headers)
  
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = uri.scheme === "https"
  response = http.request(req)
  JSON.parse(response.body) if response.code == '200'
end