Module util 

URL helpers, request headers, millify, display formatting, and column-name utilities.

Constants

DEFAULT_TIMEOUT_SECS

Default HTTP timeout for screener POSTs (seconds).

DEFAULT_USER_AGENT

Default User-Agent for scanner POSTs.

MIN_STREAM_INTERVAL_SECS

Minimum stream refresh interval (seconds).

SCANNER_ORIGIN

Base URL for scan endpoints: {SCANNER_ORIGIN}/{subtype}/scan.

TRADINGVIEW_ORIGIN

Origin header value

TRADINGVIEW_REFERER

Referer header value (TRADINGVIEW_ORIGIN + trailing /).

Functions

add_historical

Appends a historical lookback suffix

add_historical_to_label

Label for a historical column

add_rec

Recommendation companion column key

add_rec_to_label

Recommendation companion column label

format_recommendation

Formats a numeric recommendation as an arrow + letter (↑ B / ↓ S / - N).

format_row

Formats a ScreenerRow, optionally limiting to column_labels.

format_timed_field

Rewrites timed field names for the wire format

format_value

Formats one JSON cell for display; null becomes "--".

get_columns_to_request

Assembles (technical_name, label) pairs for a scan payload

get_recommendation

Maps a numeric rating to "S", "N", or "B"

get_url

Build the scan URL for a screener subtype ("crypto", "global", …).

is_status_code_ok

Returns true when status is in the HTTP 2xx range

millify

Format a magnitude with K / M / B / T suffixes and three decimal places

request_headers

HTTP headers for TradingView scanner POSTs.