Fetch Historical Data

This page explains how to download historical data with fetch.js.

• Fetch a single data set

node ./bin/fetch.js --server Premium --symbol EURUSD --period M30

• Fetch multiple symbols and periods

node ./bin/fetch.js --server Premium --symbols EURUSD GBPUSD --periods M15 M30 H1

Allowed server values:

• Premium
• Dukascopy
• MetaQuotes
• Darwinex
• Eightcap
• BlackBull

Allowed period values:

• M1
• M5
• M15
• M30
• H1
• H4
• D1

Use time_zone (or –time-zone) to set hour offset relative to UTC. Fetcher applies this value as a timestamp shift before saving the downloaded dataset.

node ./bin/fetch.js --symbol EURUSD --period H1 --time-zone -4

Use max_data_bars (or –max-data-bars) to cut downloaded history.

node ./bin/fetch.js --symbol EURUSD --period M15 --max-data-bars 100000

Set to 0 to keep all available bars.

Use if_missing_or_older_than to avoid frequent downloads. This rule applies to historical data files only.

node ./bin/fetch.js --symbols EURUSD GBPUSD --period M15 --if-missing-or-older-than 60

Meaning:

• Downloads if file is missing.
• Downloads if file was not updated in the last N minutes.
• Value 0 disables this behavior.

Use silent mode for background scripts:

node ./bin/fetch.js --symbol EURUSD --period M30 --silent true

Errors are still printed.

server = Premium
symbol = EURUSD GBPUSD
period = M15 M30
time_zone = 0
max_data_bars = 0
if_missing_or_older_than = 60
silent = false

• Symbol info exists for the selected server (./res/<server>.json).
• Symbols are valid for that server.
• Periods are one or more of: M1 M5 M15 M30 H1 H4 D1.
• Time zone and bar limits are set as intended.
• Console shows “Data fetch ready!” when completed.

• Fetcher (fetch.js)