Torben Sorensen
2651bd16ae
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26 lines
1.0 KiB
TypeScript
26 lines
1.0 KiB
TypeScript
// src/utils/serverUtils.ts
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import type { Logger } from 'pino';
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/**
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* Constructs a fully qualified base URL for generating absolute URLs.
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* It prioritizes `FRONTEND_URL`, then `BASE_URL`, and falls back to a localhost URL
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* based on the `PORT` environment variable. It also logs a warning if the provided
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* URL is invalid or missing.
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*
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* @param logger - The logger instance to use for warnings.
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* @returns A validated, fully qualified base URL without a trailing slash.
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*/
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export function getBaseUrl(logger: Logger): string {
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let baseUrl = (process.env.FRONTEND_URL || process.env.BASE_URL || '').trim();
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if (!baseUrl || !baseUrl.startsWith('http')) {
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const port = process.env.PORT || 3000;
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const fallbackUrl = `http://localhost:${port}`;
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if (baseUrl) {
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logger.warn(
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`[getBaseUrl] FRONTEND_URL/BASE_URL is invalid or incomplete ('${baseUrl}'). Falling back to default local URL: ${fallbackUrl}`,
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);
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}
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baseUrl = fallbackUrl;
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}
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return baseUrl.endsWith('/') ? baseUrl.slice(0, -1) : baseUrl;
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} |