119 lines
3.3 KiB
JavaScript
Executable File
119 lines
3.3 KiB
JavaScript
Executable File
// @ts-check
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////////////////////////////////////////
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////////////////////////////////////////
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////////////////////////////////////////
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const fs = require("fs");
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const path = require("path");
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const mysql = require("serverless-mysql");
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const grabDbSSL = require("../../package-shared/utils/backend/grabDbSSL");
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let 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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//////////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////////
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/**
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* # Main DB Handler Function
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* @async
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*
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* @param {object} params
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* @param {string} params.query
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* @param {string[] | object} [params.values]
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* @param {string} [params.database]
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*
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* @returns {Promise<any[] | object | null>}
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*/
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module.exports = async function dbHandler({ query, values, database }) {
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/**
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* Switch Database
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*
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* @description If a database is provided, switch to it
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*/
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let isDbCorrect = true;
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if (database) {
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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: database,
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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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if (!isDbCorrect) {
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console.log(
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"Shell Db Handler ERROR in switching Database! Operation Failed!"
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);
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return null;
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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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if (query && values) {
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results = await connection.query(query, values);
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} else {
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results = await connection.query(query);
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}
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/** ********************* Clean up */
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await connection.end();
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} catch (/** @type {any} */ error) {
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if (process.env.FIRST_RUN) {
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return null;
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}
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console.log("ERROR in dbHandler =>", error.message);
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console.log(error);
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console.log(connection.config());
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fs.appendFileSync(
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path.resolve(__dirname, "../.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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}
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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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