Let's start with PoC

Before I start the “proper solution,” it would be nice to check if this makes sense. For this purpose, I would write a small, rudimentary application that checks only a few things.

The goal is to sync expected data from Strava and display it in a proper way. The application should be able to run locally and show data only related to me.

If the proof of concept works, then I will start everything from scratch.

For a PoC, it does not make sense to use a database. Instead, I am going to start with a simple JSON file containing the necessary data.

[
	{
	  "name": "Canondale Topstone",
	  "started_at": "09.03.2023"
	},
	{
	  "name": "Pedals - Shimano PD-M540",
	  "started_at": "09.05.2023"
	},
	{
	  "name": "Chain #2 - KMC X10",
	  "started_at": "16.05.2023"
	},
	{
	  "name": "Shimano PD-M540",
	  "started_at": "09.05.2023"
	},
	{
	  "name": "Shimano PD-M540",
	  "started_at": "09.05.2023"
	},
	{
	  "name": "Chain #1 - KMC X10",
	  "started_at": "09.03.2023",
	  "finished_at": "16.05.2023"
	}
]

I will provide more details in the next episodes. However, at the moment, I need an endpoint to serve the frontend.

get "/" do
  send_file File.join("frontend", "index.html")
end

get details about bike and component with distance from strava

get "/activites" do
  file_path = "bike_data.json"
  file = File.read(file_path)
  data = JSON.parse(file)

  status 200
  content_type "application/json"

  transformed_data = transform_data(data)

  JSON.generate(transformed_data)
end

I need authorise strava

get "/authorise" do
  client = ::Strava::OAuth::Client.new(
    client_id: ENV["STRAVA_CLIENT_ID"],
    client_secret: ENV["STRAVA_CLIENT_SECRET"]
  )

  redirect_url = client.authorize_url(
    redirect_uri: ENV["STRAVA_REDIRECT_URI"],
    approval_prompt: "force",
    response_type: "code",
    scope: "activity:read_all",
    state: "magic"
  )

  redirect redirect_url
end

and prepare endpoint for callback

get "/authorise" do
  client = ::Strava::OAuth::Client.new(
    client_id: ENV["STRAVA_CLIENT_ID"],
    client_secret: ENV["STRAVA_CLIENT_SECRET"]
  )

  redirect_url = client.authorize_url(
    redirect_uri: ENV["STRAVA_REDIRECT_URI"],
    approval_prompt: "force",
    response_type: "code",
    scope: "activity:read_all",
    state: "magic"
  )

  redirect redirect_url
end

As I don’t have a database, tokens are also stored in the file.

The whole file looks like that (https://github.com/tobiaszwaszak/track-gear/blob/fe1853b7b30e357c2097c697ce048d9d49ed295f/app.rb)

For frontend purposes, I created another file (https://github.com/tobiaszwaszak/track-gear/blob/fe1853b7b30e357c2097c697ce048d9d49ed295f/frontend/index.html)

Next steps

It looks like my local PoC works. And I’m able to continue. The whole commit is there (https://github.com/tobiaszwaszak/track-gear/commit/fe1853b7b30e357c2097c697ce048d9d49ed295f)

I am open to feedback and welcome any questions you may have. My email is listed on this website.

Next steps#

Next steps