====== Forex Rates ======


This page covers metadata refresh jobs handled by ''fetch.js'':

    * Forex rates (''fx_rates'')
    * Symbol information (''symbol_info'')

Both jobs can be run separately or together.


===== Update fx rates =====


Downloads the latest Forex rates to ''./res/fx-rates.json''.

<code bash>
node ./bin/fetch.js --fx-rates true
</code>

INI equivalent:

<code ini>
fx_rates = true
</code>

Recommended use:

  * Run once per day or more frequently.
  * Run before generation or backtesting sessions.


===== Update Symbol information =====


Downloads symbols metadata file ''./res/<server>.json''.

<code bash>
node ./bin/fetch.js --server Premium --symbol-info true
</code>

INI equivalent:

<code ini>
server = Premium
symbol_info = true
</code>

Recommended use:

  * Usually once per day.
  * Also run after changing server.


===== Update both in one command =====

<code bash>
node ./bin/fetch.js --server MetaQuotes --fx-rates true --symbol-info true
</code>

This is the preferred metadata refresh command before large fetch or generation sessions.


===== Notes and troubleshooting =====

  * If symbol info file is missing, data fetch cannot continue. Run with ''--symbol-info true'' first.
  * If using a different server, fetch symbol info for that server so ''./res/<server>.json'' is available.
  * Use ''--silent true'' for automation scripts to reduce console output.


===== Related page =====

  * [[fetch-js|Fetcher (fetch.js)]]