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To reduce the memory footprint, this patch no longer loads the JSON data completely into memory. Instead, there is an SQL database based on `ExpireCacheSQLite`. The class CurrenciesDB is a simple DB application that encapsulates the DB (queries and initialization) and provides convenient methods like `name_to_iso4217` and `iso4217_to_name`. Related: - https://github.com/searxng/searxng/discussions/1892 - https://github.com/searxng/searxng/pull/3458#issuecomment-2900807671 - https://github.com/searxng/searxng/pull/4650 Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
54 lines
1.5 KiB
Python
54 lines
1.5 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
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"""Currency convert (DuckDuckGo)
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"""
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import json
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from searx.result_types import EngineResults
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# about
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about = {
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"website": 'https://duckduckgo.com/',
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"wikidata_id": 'Q12805',
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"official_api_documentation": 'https://duckduckgo.com/api',
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"use_official_api": False,
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"require_api_key": False,
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"results": 'JSONP',
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"description": "Service from DuckDuckGo.",
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}
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engine_type = 'online_currency'
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categories = []
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base_url = 'https://duckduckgo.com/js/spice/currency/1/{0}/{1}'
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weight = 100
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https_support = True
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def request(_query, params):
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params['url'] = base_url.format(params['from'], params['to'])
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return params
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def response(resp) -> EngineResults:
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res = EngineResults()
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# remove first and last lines to get only json
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json_resp = resp.text[resp.text.find('\n') + 1 : resp.text.rfind('\n') - 2]
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try:
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conversion_rate = float(json.loads(json_resp)["to"][0]["mid"])
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except IndexError:
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return res
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answer = '{0} {1} = {2} {3}, 1 {1} ({5}) = {4} {3} ({6})'.format(
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resp.search_params['amount'],
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resp.search_params['from'],
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resp.search_params['amount'] * conversion_rate,
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resp.search_params['to'],
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conversion_rate,
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resp.search_params['from_name'],
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resp.search_params['to_name'],
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)
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url = f"https://duckduckgo.com/?q={resp.search_params['from']}+to+{resp.search_params['to']}"
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res.add(res.types.Answer(answer=answer, url=url))
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return res
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