87 lines
2.1 KiB
JavaScript
87 lines
2.1 KiB
JavaScript
// @ts-check
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const fs = require("fs");
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const serverError = require("./serverError");
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const mysql = require("serverless-mysql");
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const grabDbSSL = require("../../utils/backend/grabDbSSL");
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const connection = mysql({
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config: {
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host: process.env.DSQL_DB_HOST,
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user: process.env.DSQL_DB_USERNAME,
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password: process.env.DSQL_DB_PASSWORD,
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database: process.env.DSQL_DB_NAME,
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charset: "utf8mb4",
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ssl: grabDbSSL(),
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},
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});
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/**
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* Main DB Handler Function
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* ==============================================================================
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* @async
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*
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* @param {any} args
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* @returns {Promise<object|null>}
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*/
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module.exports = async function dbHandler(...args) {
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process.env.NODE_ENV?.match(/dev/) &&
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fs.appendFileSync(
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"./.tmp/sqlQuery.sql",
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args[0] + "\n" + Date() + "\n\n\n",
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"utf8"
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);
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/**
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* Declare variables
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*
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* @description Declare "results" variable
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*/
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let results;
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/**
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* Fetch from db
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*
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* @description Fetch data from db if no cache
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*/
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try {
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results = await new Promise((resolve, reject) => {
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// @ts-ignore
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connection.query(...args, (error, result, fields) => {
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if (error) {
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resolve({ error: error.message });
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} else {
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resolve(result);
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}
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});
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});
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await connection.end();
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} catch (/** @type {any} */ error) {
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fs.appendFileSync(
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"./.tmp/dbErrorLogs.txt",
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JSON.stringify(error, null, 4) + "\n" + Date() + "\n\n\n",
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"utf8"
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);
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results = null;
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serverError({
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component: "dbHandler",
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message: error.message,
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});
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}
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/**
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* Return results
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*
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* @description Return results add to cache if "req" param is passed
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*/
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if (results) {
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return JSON.parse(JSON.stringify(results));
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} else {
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return null;
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}
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};
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