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