I like running but I'm not too motivated to do it everyday. I thought it would be a great idea to bet with people for a fixed duration of time. Whoever runs the most wins. Very simple concept and could have easily been done by straight up just keeping track of runs in a month and paying in person but this way, I could practice some full stack web development. There were also a lot of challenges involved, and this is still an in-progress app. Here's the process:


So, the application was supposed to do the following things:

  • Connect friends and set up a bet.
  • Keep track of the runs in that duration.
  • Notify users of the status.

Pretty straightforward. But, there were a lot of problems. Since I live in Champaign, IL it gets brutally cold in winters and running outside is not an option. There are a fair amount of runs that happen indoor on the treadmill. The two options I was looking at were Nike+ and Strava. Strava has no support for indoor runs so Nike+ was the obvious choice to track. Further problems came in when I realized that Nike+ doesn't have a public api. In fact there are no existing developer documents on this thing. That was a huge challenge. I also kept in mind that I was doing this as a fun project for me and a couple other friends so my priority was getting the job done. Even if I could create a manual input form application, that should solve my problem.


I spent a few hours on designing how the app would look like. Initially I wanted it to be an app because Nike+ is an app and its just easier to enter this data on a phone than on the computer.

(Img 1) Initial Design for Runistics

(Img 1) Initial Design for Runistics

So basically, users create an account with the app. I am no longer using Strava or Nike+. After they are logged in, they are prompted to add a few friends. Setting up a bet is again very straightforward. They just add the people they want on the bet, duration and the money. After they are added, the users get a notification and an option to either accept or reject the bet. Once a bet has started, the stats are shown in the far right screen. All the required information is visible at a glance. The data is added manually where a user will be notified everyday at a certain time to enter run data manually which could be tracked by either Nike+ or directly from the treadmill. Full disclosure - the finished (sort of) product looks nothing like the design. Not that it has bad UI, but I went in a different direction as the app progressed.


At this point I realized that adding data manually isn't really feasible. Also another big pivotal point was that we decided not to compete with each other anymore. Last time I was doing it, I increased my average mileage by more than 300% within 5 days and suffered a terrible case of Runner's Knee. Now, I decided that the competition would be with a target. For example, 500 kms a year is a decent target. I now wanted to pivot the app based on the target. Strava has a great public API so I decided to use that. I used NodeJs with a mongoDB database, Express and the frontend was written in EJS. The finished product looks something like this.

(Img 2) Screen grab of the actual project

(Img 2) Screen grab of the actual project

Initially after going through the entire process of authorization and getting a token from Strava, I wanted to get some running data right out the bat with the same API call so I used a promise and generated the basic landing screen. The details button gets all the run data after 1st Jan 2018 UNIX epoch time. I used chartjs to create line graphs of speeds and runs. There's a progress bar which would be filled up at 500 kms. Now since the basic app was done, I still had another problem with getting the runs into strava in the first place. It still doesn't record treadmill runs like Nike+ does and manual input is a chore. There had to be a better way.


Getting runs into strava automatically was indeed a challenge because Nike+ has such a closed system. Sure there are a couple of websites that help with run transfers at a minimal charge but at times even they didn't work. I ended up adding another additional login page.

(Img 3) Nike Signup Page

(Img 3) Nike Signup Page

I plan use a headless browser, log in to Nike+ with the credentials and scrape all the runs and use the Strava post API to add these activities and create graphs. Or I could remove Strava out all together and just use the scraping to get all the data. There are more challenges because I can't just store login credentials in plain text. I'll need to encrypt it. Work in progress.

Try it out