Build pagination manually for external API Rails-CodePudding

I'm consuming an external API, and I would like to create some sort of pagination for the index action. The API returns 15 elements (which is the limit I specified in the HttParty query hash) and I can add the "page" option too. For starters, I tried putting an incremental in the view and passing it as a param, and it works but only for one page (ex. from page 1 to 2) and then it just reloads the second page. How could I achieve my goal? I know there are some gems out there but I would like to learn it myself. Here's the code:

controller

class PropertiesController < ApplicationController
  BASE_URL='https://api.stagingeb.com/v1/properties'
  HEADERS = { 
    "X-Authorization"  => ENV['API_KEY']
  }

  def index
    page = params[:page]
    query = {
      "limit" => "15",
      "page" => page || 1
    }
    request = HTTParty.get(BASE_URL, :query => query, :headers => HEADERS)
    @response = JSON.parse(request.body)
  end

  def show
    request = HTTParty.get(BASE_URL   "/#{params[:id]}", :headers => HEADERS)
    @response = JSON.parse(request.body)
  end
  
end

view

<h1 >Listing all properties</h1>
<div >
  <%@response["content"].each do |property|%>
    <div >
      <div >
        <%if property["title_image_thumb"]%>
          <%=image_tag property["title_image_thumb"]%>
        <%else%>
          <p ><i ></i> No image</p>
        <%end%>
      </div>
      <div >
        <p ><%=property["public_id"]%></p>
        <p ><%=property["title"]%></p>
        <p ><%=property["property_type"]%></p>
        <p ><i ></i> <%=property["location"]%></p>
      </div>
      <div >
        <%=link_to 'Go to property', "properties/#{property["public_id"]}"%>
      </div>
    </div>
  <%end%>
</div>
<div >
  <%i = 1%>
  <%=link_to 'Next page', root_path(:page => i =1)>
</div>

PD: My goal is to add two buttons, one for the previous page and one for the next page

CodePudding user response：

You need to use the page you are currently showing when rendering the view:

<div >
  <%=link_to 'Next page', root_path(:page => @current_page   1)>
</div>

To achieve this you need to set in the controller:

  def index
    @current_page = [1, params[:page].to_i].max
    query = {
      "limit" => "15",
      "page" => @current_page
    }
    request = HTTParty.get(BASE_URL, :query => query, :headers => HEADERS)
    @response = JSON.parse(request.body)
  end