349 lines
11 KiB
JavaScript
349 lines
11 KiB
JavaScript
require('dotenv').config();
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const express = require('express');
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var bodyParser = require('body-parser');
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const server = express();
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const pg = require('pg');
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//---------read sql files into variables----------------
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var fs = require('fs');
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var readline = require('readline');
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//-------------------------------------------------------
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var Postgres = new pg.Client({
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user: process.env.user,
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password: process.env.password,
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host: process.env.host,
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port: process.env.port,
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database: process.env.database,
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ssl: false,
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application_name: "osm_api"
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});
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Postgres.connect();
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Postgres.FirstRow = function (inSQL, args, inResponse) {
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Postgres.query(inSQL, args, (err, res) => {
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if (err === null) {
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inResponse.json(res.rows[0]);
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return;
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}
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console.log(err.stack);
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inResponse.json(err.stack);
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});
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};
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server.get('/', (req, res) => res.send('node.js express is up and running 🤩'))
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server.get('/test_sql', function(req, res){
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var path = './route_meta/scenario_package.sql'
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var callback = function(arg){
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res.send(arg)
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};
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fs.readFile(path, 'utf8', function(err, data){
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if (!err){
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callback(data);
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} else {
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callback(err);
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}
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});
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});
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server.get('/get_pool', bodyParser.json(), function (req, res) {
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var sql = "";
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var args = [req.body.quota_rep];
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var path = './route_sql/get_pool.sql';
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var callback = function(arg){
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sql = arg;
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console.log("-------------------------get pool:----------------------------");
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console.log(req.body.quota_rep);
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sql = sql.replace("rep_replace",req.body.quota_rep);
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Postgres.FirstRow(sql,[],res)
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};
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fs.readFile(path, 'utf8', function(err, data){
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if (!err){
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callback(data);
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} else {
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console.log("fatal error pulling sql file")
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callback(err);
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}
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});
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})
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server.get('/scenario_package', bodyParser.json(), function (req, res) {
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var sql = "";
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var w = "";
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var c = 1;
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var d = 1;
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var args = [];
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var path = './route_sql/scenario_package.sql';
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fs.readFile(path, 'utf8', function(err, data){
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if (!err){
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callback(data);
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} else {
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console.log("fatal error pulling sql file")
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callback(err);
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}
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});
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var callback = function(arg){
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sql = arg;
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//parse request body into a where clause
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({ c, w, d } = build_where(req, c, w, d, args));
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//if there was no body sent, return with nothing
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if (c == 1) {
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res.send("no body was sent");
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return;
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}
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console.log("-------------------------get scenario:------------------------------")
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console.log(req.body);
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//parse the where clause into the main sql statement
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sql = sql.replace(new RegExp("where_clause",'g'),w)
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//execute the sql and send the result
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//console.log(sql);
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Postgres.FirstRow(sql,[],res)
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};
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})
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server.post('/addmonth_v', bodyParser.json(), function (req, res) {
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var sql = "";
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var w = "";
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var c = 1; //counts iterations through each scaenario key
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var d = 1; //counts cycles in scenario key values which are arrays
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var args = [];
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var path = './route_sql/addmonth_vd.sql';
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fs.readFile(path, 'utf8', function(err, data){
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if (!err){
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callback(data);
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} else {
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console.log("fatal error pulling sql file")
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callback(err);
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}
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});
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var callback = function(arg){
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sql = arg;
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//buile where clause expression
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({ c, w, d } = build_where(req, c, w, d, args));
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if (c == 1) {
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res.send("no body was sent");
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return;
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}
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console.log("-----------------------------add month volume:---------------------------------");
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console.log(req.body);
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//console.log(args);
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sql = sql.replace(new RegExp("scenario = target_scenario",'g'),w);
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sql = sql.replace(new RegExp("target_increment",'g'),req.body.amount);
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sql = sql.replace(new RegExp("target_month",'g'),req.body.month);
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sql = sql.replace(new RegExp("replace_version",'g'),req.body.scenario.version);
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sql = sql.replace(new RegExp("replace_iteration",'g'),"tool volume");
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sql = sql.replace(new RegExp("replace_iterdet",'g'),"addmonth_vd");
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sql = sql.replace(new RegExp("replace_iterdef",'g'),JSON.stringify(req.body));
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//console.log(sql);
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console.log(sql)
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Postgres.FirstRow(sql,[],res)
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}
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})
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server.post('/addmonth_vp', bodyParser.json(), function (req, res) {
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var sql = "";
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var w = "";
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var c = 1;
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var d = 1;
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var args = [];
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var path = './route_sql/addmonth_vupd.sql';
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var callback = function(arg){
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sql = arg;
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({ c, w, d } = build_where(req, c, w, d, args));
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if (c == 1) {
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res.send("no body was sent");
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return;
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}
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console.log("------------------add month volume and price:-------------------");
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console.log(req.body);
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//console.log(args);
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sql = sql.replace(new RegExp("where_clause",'g'),w);
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sql = sql.replace(new RegExp("target_volume",'g'),req.body.qty);
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sql = sql.replace(new RegExp("target_price",'g'),req.body.amount);
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sql = sql.replace(new RegExp("target_month",'g'),req.body.month);
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sql = sql.replace(new RegExp("replace_version",'g'),req.body.scenario.version);
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sql = sql.replace(new RegExp("replace_iteration",'g'),"tool volume & price");
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sql = sql.replace(new RegExp("replace_iterdet",'g'),"addmonth_vupd");
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sql = sql.replace(new RegExp("replace_iterdef",'g'),JSON.stringify(req.body));
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//console.log(sql);
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Postgres.FirstRow(sql,[],res)
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}
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fs.readFile(path, 'utf8', function(err, data){
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if (!err){
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callback(data);
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} else {
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console.log("fatal error pulling sql file")
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callback(err);
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}
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});
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})
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server.post('/scale_v', bodyParser.json(), function (req, res) {
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var sql = "";
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var w = "";
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var c = 1;
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var d = 1;
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var args = [];
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var path = './route_sql/scale_vd.sql';
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var callback = function(arg){
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sql = arg;
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({ c, w, d } = build_where(req, c, w, d, args));
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if (c == 1) {
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res.send("no body was sent");
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return;
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}
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console.log("-----------------------scale volume:------------------------------");
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console.log(req.body);
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//console.log(args);
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sql = sql.replace(new RegExp("where_clause",'g'),w);
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sql = sql.replace(new RegExp("target_increment",'g'),req.body.amount);
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//console.log(sql);
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Postgres.FirstRow(sql,[],res)
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}
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fs.readFile(path, 'utf8', function(err, data){
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if (!err){
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callback(data);
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} else {
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console.log("fatal error pulling sql file")
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callback(err);
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}
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});
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})
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server.post('/scale_p', bodyParser.json(), function (req, res) {
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var sql = "";
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var w = "";
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var c = 1;
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var d = 1;
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var args = [];
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var path = './route_sql/scale_pd.sql';
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var callback = function(arg){
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sql = arg;
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({ c, w, d } = build_where(req, c, w, d, args));
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if (c == 1) {
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res.send("no body was sent");
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return;
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}
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console.log("--------------------scale price:-------------------");
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console.log(req.body);
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//console.log(args);
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sql = sql.replace(new RegExp("where_clause",'g'),w);
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sql = sql.replace(new RegExp("target_increment",'g'),req.body.amount);
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sql = sql.replace(new RegExp("replace_version",'g'),req.body.scenario.version);
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sql = sql.replace(new RegExp("replace_iteration",'g'),"tool price");
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sql = sql.replace(new RegExp("replace_iterdet",'g'),"addmonth_vupd");
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sql = sql.replace(new RegExp("replace_iterdef",'g'),JSON.stringify(req.body));
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//console.log(sql);
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Postgres.FirstRow(sql,[],res)
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}
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fs.readFile(path, 'utf8', function(err, data){
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if (!err){
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callback(data);
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} else {
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console.log("fatal error pulling sql file")
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callback(err);
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}
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});
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})
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server.post('/scale_vp', bodyParser.json(), function (req, res) {
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var sql = "";
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var w = "";
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var c = 1;
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var d = 1;
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var args = [];
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var path = './route_sql/scale_vupd.sql';
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var callback = function(arg){
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sql = arg;
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({ c, w, d } = build_where(req, c, w, d, args));
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if (c == 1) {
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res.send("no body was sent");
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return;
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}
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console.log("--------------------scale volume & price:-------------------");
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console.log(req.body);
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//console.log(args);
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sql = sql.replace(new RegExp("where_clause",'g'),w);
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sql = sql.replace(new RegExp("target_vol",'g'),req.body.qty);
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sql = sql.replace(new RegExp("target_prc",'g'),req.body.amount);
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//console.log(sql);
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Postgres.FirstRow(sql,[],res)
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}
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fs.readFile(path, 'utf8', function(err, data){
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if (!err){
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callback(data);
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} else {
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console.log("fatal error pulling sql file")
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callback(err);
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}
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});
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})
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function build_where(req, c, w, d, args) {
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for (var i in req.body.scenario) {
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//console.log(i);
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///console.log(req.body[i]);
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if (c > 1) {
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w = w +
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`
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AND `;
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}
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if (Array.isArray(req.body.scenario[i])) {
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//if the scenario key has a value that is an array of items, push it into an `IN` statement
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//iter = [stage1, stage2] --> SQL --> iter IN ('stag1', stage2')
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w = w + i + " IN (";
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for (var j in req.body.scenario[i]) {
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if (d > 1) {
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w = w + ",";
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}
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w = w + "'" + req.body.scenario[i][j] + "'";
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d = d + 1;
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}
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w = w + ")";
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}
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else {
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w = w + i + " = '" + req.body.scenario[i] + "'";
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}
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args.push(req.body.scenario[i]);
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c = c + 1;
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}
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;
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return { c, w, d };
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}
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server.listen(3000, () => console.log('started')) |