pubchem/lib-esm/util/cache.js

pubchem simplifies the data retrieval from the PubChem API.

import { readFileSync, existsSync, writeFileSync } from 'fs';
import { join } from 'path';
import md5 from 'md5';
export function cache(query, value) {
    const filename = join(__dirname, `../../cache/${md5(query)}.json`);
    if (!value) {
        if (!existsSync(filename))
            return undefined;
        return JSON.parse(readFileSync(filename, 'utf8'));
    }
    else {
        // we save to cache
        writeFileSync(filename, JSON.stringify(value), 'utf8');
    }
}
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