Tracks Humble Bundle's Beat the Average prices as it fluctuates and gives a summary of the following stats based on changes within the last minute/15 minutes/hour
- Amount sold per minute
- How fast the price is increasing/decreasing in cents/minute
- How long it will take for the BTA price to increase or decrease by 1 cent
This should help with determining whether to buy now or wait for the average to decrease for bundles with Beat the Average tiers.
As of Thursday October 31, 2019 humble bundle has disabled the bundlestats api breaking the program, version 2.0 + no longer depends on the API.
Currently only a java version is available. To use, install the latest version of java and download the jar file from the releases page.
I may rewrite this in another language to avoid having to install java.
In your terminal type:
java -jar BTATrack.jar [url to bundle] [database file name?]
You can drag and drop the BTATrack.jar file into the terminal instead of typing out the full path.
Make sure to quote the bundle url with "" to avoid additional processes being spawned by & characters in the url.
The database file name is optional if you want to keep the data recorded or avoid losing data between program restarts. By default the program uses the in memory sql database. A prefix of membackup: will use the in memory database backing up to the given database file. This is less disk intensive than specifying just the database file at the risk of losing some data if the program stops unexpectedly i.e. power loss.
As the program runs forever to terminate press CTRL - C to stop the program
The program will print the information in a format like this
Current Average:5.219690360796984
Past Minute: 4.286 sold/min increasing by 0.003132cents/minute, increases in 169.542 minutes
Past 15Min : 4.805 sold/min increasing by 0.012320cents/minute, increases in 43.098 minutes
Past Hour : 5.285 sold/min increasing by 0.020388cents/minute, increases in 26.043 minutes
Initially it will only print the current average with the changed averaged over the past minute/15 minutes/hour added as more data is collected
The database file generated can be compressed with the following command.
java -cp BTATrack.jar core.Compact [database...]
The database is compressed by removing duplicate entries with the same price keeping only the times it was first seen and last seen.
One or more databases may be specified, if more than one is specified then it will assume the data is from the same bundle and merge the data together and compress them. The compressed information will be put into a new database that has the name of the first database with the suffix _compact.
Additionally databases can be merged with the following command if they contain data about the same bundle.
java -cp BTATrack.jar core.Compact merge [database...]
One or more databases may be specified, if one is specified then it only sorts the default index according to timestamp and cleans up the disk space used. The merged information will be put into a new database that has the name of the first database with the suffix _merged.
- JSoup, to scrape the data from Humble Bundle's api
- JDBC for sqlite, to easily store and query data collected