Finance::Quote Yahoo_JSON Alpha Vantage

[Paul Bates]

 Chris Good -- when we fixed the Alpha Vantage timeout problem no changes
were required for the Qoute.pm module.  I am wondering what changes have
been made.  The link

https://raw.githubusercontent.com/mtalexander/finance-quote/6ee43ea08b504617
142139fda41ae45be865fa38/lib/Finance/Quote.pm
<https://raw.githubusercontent.com/mtalexander/finance-quote/6ee43ea08b504617142139fda41ae45be865fa38/lib/Finance/Quote.pm>

no longer works.

Paul Bates


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On Sun, Apr 1, 2018 at 8:51 PM, Chris Good <goodchris96 at gmail.com> wrote:

> Hi,
>
>
>
> I have no problems using Yahoo_JSON as a quote source for my 16 stocks for
> which I download prices only weekly.
>
> However, I have been working with another user and it seems Yahoo_JSON
> fails
> when there are many stocks and/or prices for them are requested often.
>
>
>
> I suggest people who run into Yahoo _JSON problems use Alpha Vantage as the
> quote source.
>
> See
> https://wiki.gnucash.org/wiki/FAQ#Q:_Why_doesn.27t_online_quoting_work.3F
>
>
>
> Alpha Vantage purposefully fails quote requests if it detects a user
> hogging
> their web server resources by returning an Information message that says:
>
> Please consider optimizing your API call frequency
>
> and pausing for approx. 20 seconds.
>
>
>
> If you use Alpha Vantage, there have been mods made to Finance::Quote so
> that usage complies with the Alpha Vantage recommendations that only 1
> price
> request per second is made in order to ensure that the webserver resources
> are shared amongst all users.
>
>
>
> If the information message is detected for a particular stock (or currency
> conversion thanks Mike Alexander), then Finance::Quote also pauses for 20
> seconds, then retries up to 4 times.
>
> As this means you should not have to retry getting prices for all stocks or
> currencies if you have a failure, and this will minimise usage of the Alpha
> Vantage web server, I suggest people install the modified perl programs.
>
>
>
> The modified Finance::Quote perl programs are currently not yet
> incorporated
> into the latest version of Finance::Quote (1.47), and as the Finance::Quote
> maintainers are, like everyone else, busy, it may be a long time (it has
> been over a year in the past) before these mods are included in the next
> release of Finance::Quote.
>
>
>
> To install these mods without waiting for them to be incorporated in
> Finance::Quote:
>
>
>
> 1. Make sure the standard Quote.pm and AlphaVantage.pm files are writable.
>
>
>
> For Windows 10 these files are usually:
>
> C:\strawberry\perl\site\lib\Finance\Quote.pm
>
> C:\strawberry\perl\site\lib\Finance\Quote\AlphaVantage.pm
>
> Using File Manager, right click on the file, Properties, Untick 'Read
> Only',
> then OK
>
>
>
> For Ubuntu Linux, these files are usually:
>
> /usr/local/share/perl/5.22.1/Finance/Quote.pm
>
> /usr/local/share/perl/5.22.1/Finance/Quote/AlphaVantage.pm
>
> From a terminal:
>
> cd /usr/local/share/perl/5.22.1/Finance
>
> sudo chmod 666 Quote.pm Quote/AlphaVantage.pm
>
>
>
> 2. To install the modified Quote.pm:
>
> Open
> https://raw.githubusercontent.com/mtalexander/finance-quote/
> 6ee43ea08b504617
> 142139fda41ae45be865fa38/lib/Finance/Quote.pm
>
> in a browser, click in the code, then  use Control-A to highlight it all,
> then paste it into a text editor
>
> (say Notepad for Windows, or gedit for Linux), then 'Save As' over the top
> of the existing
> Quote.pm.
>
>
>
> 3. To install the modified AlphaVantage.pm:
>
> Open
> https://github.com/mtalexander/finance-quote/blob/
> 6ee43ea08b504617142139fda4
> 1ae45be865fa38/lib/Finance/Quote/AlphaVantage.pm
>
>
>
> in a browser, click in the code, then  use Control-A to highlight it all,
> then paste it into a text editor
>
> (say Notepad for Windows, or gedit for Linux), then 'Save As' over the top
> of the existing
> AlphaVantage.pm.
>
>
>
>
> Sorry, I don't have a Mac so I cannot provide instructions.
>
>
>
> If you want to check on the progress of the Pull Request to incorporate
> these changes in Finance::Quote, please see:
>
> https://github.com/finance-quote/finance-quote/pull/85
>
>
>
> Regards, Chris Good
>
>
>
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