Example of for using Redash API in Ruby to update the schedule

example.rb

require 'httparty'

class Redash
    include HTTParty

    def initialize(slug, api_key)
        @base_uri = "https://app.redash.io/#{slug}"
        @headers = {
            'Authorization': "Key #{api_key}"
        }
    end

    def get(url, options={}) 
        full_uri = "#{@base_uri}/#{url}"
        options.merge!({headers: @headers, 'Content-Type': 'application/json'})
        JSON.parse(self.class.get(full_uri, options).body)
    end

    def post(url, options={}) 
        full_uri = "#{@base_uri}/#{url}"
        options.merge!({headers: @headers, 'Content-Type': 'application/json'})
        JSON.parse(self.class.post(full_uri, options).body)
    end
    
    def paginate(request)
        page = 1
        page_size = 100

        items = []

        loop do
            response = get(request, :query => {page: page, page_size: page_size})
            items.concat(response['results'])

            page += 1

            break if response['page'] * response['page_size'] >= response['count']
        end

        items
    end

    def queries(page=1, page_size=25)
        get('api/queries', :query => {page: page, page_size: page_size})
    end

    def query_by_id(id)
        get("api/queries/#{id}")
    end

    def update_query(id, body)
        post("api/queries/#{id}", :body => JSON.dump(body))
    end
end

redash = Redash.new('your-slug', 'your-api-key')
query_id = 123456
query = redash.query_by_id(query_id)
schedule = query['schedule']
schedule.merge!({"until": "2019-03-17"})
puts redash.update_query(query_id, :schedule => schedule)['schedule']

# get all queries:
redash.paginate('api/queries')