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feat: inject environment variables from config.json #60

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feat: inject environment variables from config.json #60

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19 changes: 19 additions & 0 deletions src-api/src/config/loader.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -157,13 +157,32 @@ class ConfigLoader {

this.mergeConfig(fileConfig, 'file');
this.configPath = absolutePath;
this.loadEnvFromConfig(fileConfig as unknown as Record<string, unknown>);

console.log(`[ConfigLoader] Loaded config from: ${absolutePath}`);
} catch (error) {
console.error(`[ConfigLoader] Error loading config file:`, error);
}
}

/**
* Load custom env vars from config.json's "env" field.
* Values like "${VAR}" are resolved from process.env.
*/
private loadEnvFromConfig(fileConfig: Record<string, unknown>): void {
const envMap = fileConfig.env as Record<string, string> | undefined;
if (!envMap || typeof envMap !== 'object') return;

for (const [key, value] of Object.entries(envMap)) {
if (typeof value !== 'string') continue;
const resolved = value.replace(/\$\{(\w+)\}/g, (_, name) => process.env[name] || '');
if (resolved && !process.env[key]) {
process.env[key] = resolved;
console.log(`[ConfigLoader] Injected env: ${key}`);
}
}
}

/**
* Load configuration from environment variables
*/
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