Cost of Operation & Maintenance for Vectortiles - WASAC/vt-map GitHub Wiki
This system is fully adopted to GitHub Pages platform. This open source toolkits Project is being maintained by Jin IGARASHI which is supported by United Nation Open GIS Initiative's [UN Vector Tile Toolkit(https://github.com/unvt).
This application can work without server, and Github provides HTTPS secure connection as default. Basically, it costs completely free of charge, you don't need additional fees for operating vectortiles services.
However, there are some limits in GitHub Pages and BaseMap services as follows.
Hosting Service of GitHub Pages
Although GitHub Pages is free of charges for an Open Source Project, there are some usage limits. See more details about GitHub Pages here.
- GitHub Pages source repositories have a recommended limit of 1GB.
- Published GitHub Pages sites may be no larger than 1 GB.
- GitHub Pages sites have a soft bandwidth limit of 100GB per month.
- GitHub Pages sites have a soft limit of 10 builds per hour.
WASAC's Vectortiles data in the whole country is currently only approximately 33MB. So I think our usage should not be a problem.
Usage of Base map from Mapbox Studio
Our vectortiles client application mapbox-gl-js-client is using base map services of Mapbox Studio. Mapbox Studio can provides very beautiful vectortile based OpenStreetMap.
Currently, we are using free plan of Mapbox Studio. However, there are also some limits.
- Map Loads for Web : 50,000 request per month
If requests exceed 50,000, they will charge $5 USD per 1000 request. You can see more details about their pricing here.
Cost Estimation
I estimated the number of page views is approximately 41,400 per month. I estimated 30 days per month because some waterworks need to be done during weekends. However, I don't think all of people will access fully. So, 50,000 requests' limit is still enough.
If WASAC's usage will exceed 50,000 requests, we may consider to change base map services from Mapbox to Maptiler. Maptiler will provide base map for free of charge upto 100,000 requests per month. You can see more details about Maptiler's pricing here.
| Organization | No of Organization | No of Users per Organizaiton | Total No of Users | Page Views per person per day | Total PVs per day | Estimated PV per month |
|---|---|---|---|---|---|---|
| Districts | 30 | 1 | 30 | 3 | 90 | 2700 |
| POs | 80 | 5 | 400 | 3 | 1200 | 36000 |
| WASAC RWSS | 1 | 30 | 30 | 3 | 90 | 2700 |
| Total | 111 | 36 | 460 | - | 1380 | 41400 |