Let me ask a more basic question. What is bean-price actually supposed to do?
Re-reading https://beancount.github.io/docs/fetching_prices_in_beancount.html , I'm piecing together that perhaps the only thing bean-price does is value your assets as of a certain date. Is that true? TBH it's not clear from the docs. There are other uses for prices, e.g., establishing cost basis for a purchase, or establishing the value of the transfer of an asset at a particular point in time be that for income or expenses. Are there existing plugins that can look up historical prices and annotate transactions with them where they're missing? On Tue, Aug 1, 2023 at 5:54 PM Eric Altendorf <ericaltend...@gmail.com> wrote: > I'm having trouble understanding how automatic price fetching works, and I > think it's being additionally complicated by questions of price imputation > and maybe PnL accounts. Let's start with the simplest case. Consider > (commodity declarations omitted for brevity): > > 2020-01-01 * "Buy BTC (from USD)" > Assets:Coinbase:BTC 0.50000000 BTC > Assets:Coinbase:USD -4750.00000000 USD > > I would have expected bean-price to fetch a price for BTC for 2020-01-01, > but instead it fails, saying the transaction doesn't balance. Now, if I > supply a price > > 2020-01-01 * "Buy BTC (from USD)" > Assets:Coinbase:BTC 0.50000000 BTC @ 9500.0 USD > Assets:Coinbase:USD -4750.00000000 USD > > or supply a price spec with no number: > > 2020-01-01 * "Buy BTC (from USD)" > Assets:Coinbase:BTC 0.50000000 BTC @ USD > Assets:Coinbase:USDT -4750.00000000 USD > > then there is no error, but bean-price fetches *today's* price. > > Now let's consider a more complex example: > > 2020-02-01 * "Buy BTC (from USDT)" > Assets:Coinbase:BTC 0.50000000 BTC > Assets:Coinbase:USDT -4750.00000000 USDT > Income:PnL > > Here, I'd like to fetch the USD prices of both BTC and USDT, which would > allow PnL to be computed, but bean-price fetches nothing. Now, if I put "@ > USD" at the end of the BTC posting (as above), instead of getting the price > on 2020-01-01 (as I desire), or the price today (as in the earlier > example), I get "Too many missing numbers for currency group 'USD'". > > I can't quite figure out what bean-price is doing, or square it against the > documentation > <https://docs.google.com/document/d/1thYRAMell_QT1Da1F_laprSs6BlROZjyK_h3V8qHW9c/edit>. > Any tips to get me unblocked? > > thanks, > eric > -- You received this message because you are subscribed to the Google Groups "Beancount" group. To unsubscribe from this group and stop receiving emails from it, send an email to beancount+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beancount/CAFXPr0s7%3DgbtXSUAMCuzWkKha958p7G9tWqMz6AuWABcGtfK8w%40mail.gmail.com.
