tps/server.js
2018-09-03 16:58:31 -04:00

222 lines
7.9 KiB
JavaScript

require('dotenv').config();
var express = require('express');
var handlebars = require('express-handlebars');
var bodyParser = require('body-parser');
var cookieParser = require('cookie-parser');
var mult = require('multer');
var upload = mult({ encoding: "utf8" });
var csvtojson = require('csvtojson');
var pg = require('pg');
var server = express();
server.engine('handlebars', handlebars());
server.set('view engine', 'handlebars');
server.use(function(inReq, inRes, inNext)
{
inRes.header("Access-Control-Allow-Origin", "*");
inRes.header("Access-Control-Allow-Methods", "POST, GET, PUT, DELETE, OPTIONS");
inRes.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
inNext();
});
var Postgres = new pg.Client({
user: process.env.user,
password: process.env.password,
host: process.env.host,
port: process.env.port,
database: process.env.database,
ssl: false,
application_name: "tps_etl_api"
});
Postgres.FirstRow = function(inSQL,args, inResponse)
{
Postgres.query(inSQL,args, (err, res) => {
if (err === null)
{
inResponse.json(res.rows[0]);
return;
}
inResponse.json(err.message);
});
};
Postgres.connect();
//----------------------------------------------------------source definitions-------------------------------------------------------------------------------------------------------------------------
//returns array of all sources
server.get("/source", function (inReq, inRes)
{
var sql = "SELECT jsonb_agg(defn) source_list FROM tps.srce";
Postgres.FirstRow(sql,[], inRes);
});
//returns message about status and error description
server.post("/source", bodyParser.json(), function (inReq, inRes)// remove body parsing, just pass post body to the sql string build
{
var sql = "SELECT x.message FROM tps.srce_set($1::jsonb) as x(message)";
Postgres.FirstRow(sql,[JSON.stringify(inReq.body)], inRes);
});
//----------------------------------------------------------regex instrUctions-------------------------------------------------------------------------------------------------------------------------
//list all regex operations
server.get("/regex", function (inReq, inRes)
{
var sql = "SELECT jsonb_agg(regex) regex FROM tps.map_rm WHERE srce = $1::text";
Postgres.FirstRow(sql, [inReq.query.srce], inRes);
});
//set one or more map definitions
server.post("/regex", bodyParser.json(), function (inReq, inRes)
{
var sql = "SELECT x.message FROM tps.srce_map_def_set($1::jsonb) as x(message)";
Postgres.FirstRow(sql, [JSON.stringify(inReq.body)], inRes);
});
//------------------------------------------------------------mappings---------------------------------------------------------------------------------------------------------------------------------
//list unmapped items flagged to be mapped ?srce=
server.get("/unmapped", function (inReq, inRes)
{
var sql = "SELECT jsonb_agg(row_to_json(x)::jsonb) regex FROM tps.report_unmapped_recs($1::text) x";
Postgres.FirstRow(sql,[inReq.query.srce], inRes);
});
//list unmapped items flagged to be mapped ?srce=
server.get("/mapping", function (inReq, inRes)
{
var sql = "SELECT jsonb_agg(row_to_json(x)::jsonb) regex FROM tps.map_rv x WHERE srce = $1::text";
Postgres.FirstRow(sql,[inReq.query.srce], inRes);
});
//add entries to lookup table
server.post("/mapping", bodyParser.json(), function (inReq, inRes)
{
var sql = "SELECT x.message FROM tps.map_rv_set($1::jsonb) as x(message)";
Postgres.FirstRow(sql,[JSON.stringify( inReq.body)], inRes);
});
//-------------------------------------------------------------import data-----------------------------------------------------------------------------------------------------------------------------
server.use("/import", upload.single('upload'), function (inReq, inRes) {
console.log("should have gotten file as post body here");
var csv = inReq.file.buffer.toString('utf8')
//{headers: "true", delimiter: ",", output: "jsonObj", flatKeys: "true"}
csvtojson({ flatKeys: "true" }).fromString(csv).then(
(x) => {
var sql = "SELECT x.message FROM tps.srce_import($1, $2::jsonb) as x(message)"
console.log(sql);
Postgres.FirstRow(sql, [inReq.query.srce, JSON.stringify(x)], inRes);
}
);
}
);
//----------------------------------------------------------list import logs---------------------------------------------------------------------------------------------------------------------------
server.get("/import_log", function (inReq, inRes)
{
var sql = "SELECT jsonb_agg(info) info FROM tps.trans_log WHERE info @> $1::jsonb";
Postgres.FirstRow(sql, [inReq.query], inRes);
});
//-------------------------------------------------------------suggest source def----------------------------------------------------------------------------------------------------------------------
server.use("/csv_suggest", upload.single('upload'), function (inReq, inRes) {
console.log("should have gotten file as post body here");
var csv = inReq.file.buffer.toString('utf8')
//{headers: "true", delimiter: ",", output: "jsonObj", flatKeys: "true"}
csvtojson({ flatKeys: "true" }).fromString(csv).then(
(x) => {
var sug = {
schemas: {
default: []
},
loading_function: "csv",
source:"client_file",
name: "",
constraint: []
};
for (var key in x[0]) {
var col = {};
//test if number
if (!isNaN(parseFloat(x[0][key])) && isFinite(x[0][key])) {
//if is a number but leading character is -0- then it's text
if (x[0][key].charAt(0) == "0"){
col["type"] = "text";
}
//if number and leadign character is not 0 then numeric
else {
col["type"] = "numeric";
}
}
//if can cast to a date within a hundred years its probably a date
else if (Date.parse(x[0][key]) > Date.parse('1950-01-01') && Date.parse(x[0][key]) < Date.parse('2050-01-01')) {
col["type"] = "date";
}
//otherwise its text
else {
col["type"] = "text";
}
col["path"] = "{" + key + "}";
col["column_name"] = key;
sug.schemas.default.push(col);
}
console.log(sug);
inRes.json(sug);
}
);
}
);
//add ledger array and create offset account for every line
server.get("/doc_add_gl_offset_multi", bodyParser.json(), function (inReq, inRes)
{
var l = 0;
console.log(inReq.body);
x = inReq.body;
x.GL = [];
for (var i in x.item){
var line = x.item[i];
x.GL.push(line);
//copy the existing line to the GL array
var ofs = JSON.parse(JSON.stringify(line));
ofs.account = x.header.offset_account;
ofs.amount = -ofs.amount;
//add another line the GL array using the offset account
x.GL.push(ofs);
}
inRes.json(x);
});
//add ledger array and create offset account for total of all lines
server.get("/doc_add_gl_offset_single", bodyParser.json(), function (inReq, inRes)
{
var l = 0;
var tot = 0.00;
console.log(inReq.body);
x = inReq.body;
x.GL = [];
for (var i in x.item){
var line = x.item[i];
x.GL.push(line);
tot = tot + line.amount;
}
var ofs = JSON.parse(JSON.stringify(x.header));
ofs.account = ofs.offset_account;
delete ofs.offset_account;
ofs.amount = -tot;
x.GL.push(ofs);
inRes.json(x);
});
server.get("/", function (inReq, inRes)
{
inRes.render("definition", { title: "definition", layout: "main" });
});
module.exports = server;