Difference between revisions of "Online Quotes"

Revision as of 00:32, 10 July 2019

Overview

GnuCash stores the share prices of investments in the respective buy/sell/split transactions and additional quotes in an internal price database. Although it is possible to enter prices manually into the price database, it is more convenient to update them from online sources. GnuCash uses an external Perl module called Finance::Quote (F::Q) to fetch these quotes online.

Finance::Quote is managed at

GitHub,

CPAN (both recent), and

SourceForge,

SourceForge (hopeless outdated, last news: 2015-Aug-22 Release 1.38).

There are bugtrackers at

http://rt.cpan.org/Public/Dist/Display.html?Status=Active&Name=Finance-Quote and

https://github.com/finance-quote/finance-quote/issues.

Finance::Quote gathers its price data from several websites around the world that provide this information in different ways. Some offer

• an API like JSON or YQL,
• downloads, usually as CSV file, and finally
• quite literally by extracting information from the web page itself.

Because websites change frequently we advise you to keep Finance::Quote up-to-date.

The GnuCash Help includes instructions on setting up online quotes.

Finance::Quote is external to GnuCash. Thus, for it to work, you need Perl installed (see below), and occasionally you will need to update it separately from GnuCash.

Helper Scripts

For your convenience, we ship a bunch of gnc-fq-* programs, which again are Perl scripts:

gnc-fq-check

returns the version number and the list of available F::Q modules,

gnc-fq-update

installs or updates F::Q and its dependencies, if Perl is already installed;

gnc-fq-dump

returns data for a source and a list of symbols,

gnc-fq-helper

a filter, which does the same, but in- and output are Scheme expressions.

You might use them for troubleshooting, if Gnucash fails to update quotes.

Requirements

Perl

F::Q relies on Perl, which must be installed. Perl is handled differently on the different operating systems.

• Unix (Linux, AIX, *BSD, HPUX, Solaris,...): Perl is probably already installed or gets installed as dependency, if you install Finance::Quote by your systems package manager. Run perl -v on a command line to get the version number. If that fails, use your package manager to install it.
• Mac OS X: Perl is already installed. Open a Terminal application (in the Utilities folder of your Applications folder) and run perl -v to see the version number.
• Windows: <to be moved from Windows#Finance::Quote etc.>

Source: [1]

Note

While unixoid operating systems use a shebang #! to associate perl scripts with the perl interpreter, others might fail. So, if you get an error like

gnc-fq-check is not recognized as an internal or external command, operable program or batch file

you should repeat the command with a preceeding perl:

perl gnc-fq-check

Finance::Quote

As mentioned previously, Finance::Quote is a Perl module that must be installed to enable online quote fetching. Finance::Quote, in turn, depends on a number of other Perl modules.

You can check the version and the list of available modules by running

gnc-fq-check

from the command line.

Installing or Updating

The easiest way to install the Finance::Quote software needed for retrieving price quotes for securities from online sources in GnuCash is to use the provided installation tools, or your system's package manager. Both the Microsoft Windows and macOS GnuCash packages include provided update tools for Finance::Quote, while many Linux distributions provide a standard way to install packages (e.g., the apt program on Debian-based Linux distributions and the dnf tool on RedHat-based Linux distrubtions such as Fedora).

Installing Finance::Quote on Windows

On a Microsoft Windows computer, GnuCash provides the Install Online Price Retrieval program, which is located in the GnuCash group in the Start Menu. Simply click on it to begin the Finance::Quote installation process. You can re-run the Install Online Price Retrieval program as often as you like to ensure the Finance::Quote module remains up to date.

Installing Finance::Quote on macOS

On a macOS computer, GnuCash provides the FinanceQuote Update app, which is located in the disk image (.dmg file) along with the main GnuCash app itself. When you install GnuCash by dragging and dropping the GnuCash app icon to a location on your computer's hard drive (like your Applications folder), you should also consider installing the FinanceQuote Update app into the same folder as you installed the main GnuCash app.

Launch the FinanceQuote Update app by double-clicking it to begin the Finance::Quote installation process. You can re-run the FinanceQuote Update app program as often as you like to ensure the Finance::Quote module remains up to date.

Installing Finance::Quote on macOS from a Terminal prompt

The FinanceQuote Update app is a very simple AppleScript Applet that runs a command equivalent to the following in a Terminal:

sudo /Applications/Gnucash.app/Contents/Resources/bin/gnc-fq-update

If the FinanceQuote Update applet fails, you can simply run the above command while logged in to a user account with administrative privileges. (Note that a mere su may not be sufficient; you should log out of all user accounts, then log in as the admin user for the computer on which you want to install Finance::Quote, then run the above command from a Terminal.)

As with the applet, you can re-run the command as often as you like to ensure the Finance::Quote module remains up to date.

Installing Finance::Quote on Linux

On a Linux computer, the recommended way to install Finance::Quote is by searching in your OS distribution's package manager for finance-quote. Note that your distribution's package maintainer may prefix the package name with perl, lib, or both. We also recommend that you check the version of Finance::Quote offered by your OS package repositories to ensure it is a recent-enough version.

If no recent version of the Finance::Quote module is offered by your package manager, you should run the gnc-fq-update helper script manually. As root (using the su and/or the sudo commands) run the GnuCash Finance Quote update script:

gnc-fq-update

This will begin the installation procedure for Finance::Quote and all of its dependencies.

Note for (Ubuntu based) distributions

Some of them removed it from the package. In this case you can

• download it from github e.g. into your personal ~/bin directory,
• In the first line replace @-PERL-@ with the path to your perl executable, e.g., /usr/bin/perl, remove the trailing .in from its name and mark the file as executable.

A discussion of how to fix it in Ubuntu can be found at [2].

Since GnuCash version 2.6.12, this helper script uses CPAN (see the next section) to install the following Perl modules:

• Date::Manip
• Finance::Quote
• and their dependencies

Installing Finance::Quote using CPAN

CPAN is the Comprehensive Perl Archive Network, which provides a collection of free Perl software (called modules) from which you can obtain the perl Finance::Quote module along with all of its dependencies. If the methods listed above for your specific Operating System distribution fails, you may nevertheless be able to install Finance::Quote by directly interfacing with CPAN yourself.

To do so using CPAN:

perl -MCPAN -e shell
# Either, if F::Q is missing, install it with
  install Finance::Quote
# or, if F::Q is outdated, update it with
  upgrade Finance::Quote
# finally check for Date::Manip
  install Date::Manip
# and exit:
  q

Note

On the first run of cpan it needs some configuration:

CPAN.pm requires configuration, but most of it can be done automatically.
If you answer 'no' below, you will enter an interactive dialog for each
configuration option instead.

Would you like to configure as much as possible automatically? [yes]

It is usually save to accept the defaults.

Sources

FAQ#Q: How do I install Finance::Quote on a Mac?

Windows#Finance::Quote

FAQ#Q: How do I fix a "system error" or "unknown error" when getting stock quotes?

Finding the right Source and Symbol

Because not all sources offer all commodities and different sources use different symbols, it is the high art to find the right combination. Common symbols are:

• Ticker symbols: 1-4 character abbreviation of company names, often used for US shares;
• National Security Identification Numbers: like CUSIP, often used by national fund companies;
• ISIN: International Security Identification Numbers, at least in the EU they are more and more replacing the different NSINs;
• sometimes completed by an appendix indicating the market place.

gnc-fq-dump -v <Source> <Symbol>

If your commodity is a mutual fund and F::Q offers its fund company as source (deka, dws, ...) look on their website, which symbols they use and you are done.

Is there a source for its registered exchange (AEX, ASX, ...) do the same.

In other cases google the ISIN to get a list of possible sources.

Global players: Alphavantage and Yahoo* are stronger in shares and Morningstar* in funds.

Updating enabled Quotes from outside GnuCash

You can run

gnucash --add-price-quotes /path/to/file.gnucash

or on macOS™:

 /Applications/Gnucash.app/Contents/MacOS/Gnucash --add-price-quotes /Users/<username>/Documents/test.gnucash

to update all enabled quotes.

N.B.: On Microsoft Windows™ if the path includes a disk letter then you must pass a file URI or GnuCash will confuse the drive letter for a URI scheme and fail to open it. e.g.:

 file://C:/path/to/file.gnucash

Warning About Open Files

Updating quotes will modify the GNUCash file/database. As multi-user access is not supported, the file/database should be closed prior to updating quotes.

Cron and Non-X Usage

If you attempt to do that without dbus running (for example, from a cron job or ssh without X forwarding), you may get errors such as

GConf Error: Failed to contact configuration server; the most common cause is a missing or misconfigured D-Bus session bus daemon. 
See http://projects.gnome.org/gconf/ for information. 
(Details -  1: Not running within active session)

One resolution for this, courtesy of SyncEvolution - The Missing Link, is to launch dbus for the duration of the quote retrieval with a cron command similar to:

env `dbus-launch` sh -c 'trap "kill $DBUS_SESSION_BUS_PID" EXIT; gnucash --add-price-quotes /path/to/file.gnucash'

Note: This has been documented in Bug #639776.

Technical Details

Where the F::Q files are stored depends on your OS/Distro:

• Linux depends on the way it was installed:
  • by package manager: /usr/share/perl5/[vendor/]Finance/Quote
  • by CPAN or gnc-fq-update: /usr/share/perl5/site/Finance/Quote
  • self compiled: /usr/local/share/perl/5.xx.x/Finance/Quote
• Windows: C:\Perl\site\lib\Finance\Quote

You can get the path by running:

perldoc -lm Finance::Quote

(Tested on Linux and macOS. Please update for Windows.)

Documentation

• Development Snapshot
• 5.10 Help

Back to: Using GnuCash