use vercel serverless

.gitignore

@@ -1 +1,7 @@
+.now
 node_modules
+
+# Environment Variables
+.env
+.env.build
+.vercel

.nowignore

@@ -0,0 +1,2 @@
+README.md
+yarn.lock

README.md

@@ -1,8 +1,8 @@
 # sheetaki
 
-Spreadsheet CSV conversion microservice
+Spreadsheet CSV conversion function.  Deployed on <https://sheetaki.now.sh>
 
 Examples:
 
-- [https://obamawhitehouse.archives.gov/sites/default/files/omb/budget/fy2014/assets/receipts.xls](https://sheetaki.now.sh/data/?url=https://obamawhitehouse.archives.gov/sites/default/files/omb/budget/fy2014/assets/receipts.xls)
+- [https://obamawhitehouse.archives.gov/sites/default/files/omb/budget/fy2014/assets/receipts.xls](https://sheetaki.now.sh/api/data/?url=https://obamawhitehouse.archives.gov/sites/default/files/omb/budget/fy2014/assets/receipts.xls)
 

api/data/index.js

@@ -0,0 +1,36 @@
+const XLSX = require('xlsx');
+const URL = require('url');
+const request = require('request');
+
+const do_url = (req, url, res) => {
+	request(url.query.url, {encoding:null}, function(err, response, body) {
+		if(err) return res.status(500).send(err.toString());
+		switch(response.statusCode) {
+			case 200: break;
+			case 404: return res.status(404).send(`Cannot find ${url.query.url}`);
+			default:  return res.status(500).send(`Unrecognized status code ${response.statusCode}`);
+		}
+		const wb = XLSX.read(body, {type:'buffer'});
+		const N = url.query.N ? parseInt(url.query.N,10) : 0;
+		if(N < 0) {
+			switch(url.query.t || "csv") {
+				case "json": return res.status(200).send(JSON.stringify(wb.SheetNames.join("\n")));
+				default: return res.status(200).send(wb.SheetNames.join("\n"));
+			}
+		}
+		if(N >= wb.SheetNames.length) return res.status(500).send(`Cannot find sheet ${N}`);
+		var ws = wb.Sheets[wb.SheetNames[N]];
+		switch(url.query.t) {
+			case "json": return res.status(200).json(XLSX.utils.sheet_to_json(ws, {header:1, raw:true}));
+			case "html": return XLSX.stream.to_html(ws).pipe(res);
+			default: XLSX.stream.to_csv(ws).pipe(res);
+		}
+	});
+};
+
+module.exports = function(req, res) {
+	var url = URL.parse(req.url, true);
+	res.setHeader('Access-Control-Allow-Origin', '*');
+	if(!url.query.url) return res.status(500).send("Must issue command");
+	do_url(req, url, res);
+};

index.js

@@ -1,51 +0,0 @@
-var XLSX = require('xlsx');
-var URL = require('url');
-var request = require('request');
-var micro = require('micro');
-
-var fs = require("fs");
-var HTML = fs.readFileSync("index.html");
-
-function do_url(req, url, res) {
-	request(url.query.url, {encoding:null}, function(err, response, body) {
-		if(err) return micro.send(res, 500, err);
-		switch(response.statusCode) {
-			case 200: break;
-			case 404: return micro.send(res, 404, "Cannot find " + url.query.url);
-			default:  return micro.send(res, 500, "Unrecognized status code " + response.statusCode);
-		}
-		var wb = XLSX.read(body, {type:'buffer'});
-		var N = url.query.N ? parseInt(url.query.N,10) : 0;
-		if(N < 0) {
-			switch(url.query.t || "csv") {
-				case "json": return micro.send(res, 200, JSON.stringify(wb.SheetNames.join("\n")));
-				default: return micro.send(res, 200, wb.SheetNames.join("\n"));
-			}
-		}
-		if(N >= wb.SheetNames.length) return micro.send(res, 500, "Cannot find sheet " + N);
-		var ws = wb.Sheets[wb.SheetNames[N]];
-		switch(url.query.t) {
-			case "json": return micro.send(res, 200, JSON.stringify(XLSX.utils.sheet_to_json(ws, {header:1, raw:true})));
-			case "html": return XLSX.stream.to_html(ws).pipe(res);
-			default: XLSX.stream.to_csv(ws).pipe(res);
-		}
-	});
-}
-
-module.exports = function(req, res) {
-	var url = URL.parse(req.url, true);
-	if(url.pathname == "/") {
-		res.writeHead(200, {
-			'Content-Type': 'text/html; charset=UTF-8'
-		});
-		res.end(HTML);
-		return;
-	}
-	res.setHeader('Access-Control-Allow-Origin', '*');
-	var mode = -1;
-	if(url.query.url) mode = 0;
-	if(mode == -1) { micro.send(res, 500, "Must issue command"); return; }
-	switch(mode) {
-		case 0: do_url(req, url, res); break;
-	}
-};

now.json

@@ -0,0 +1,3 @@
+{
+	"version": 2
+}

package.json

@@ -10,9 +10,8 @@
 		"xlsx":""
 	},
 	"scripts": {
-		"start": "micro"
+		"build": "echo hai"
 	},
 	"homepage": "https://sheetaki.now.sh",
-	"license": "Apache-2.0",
-	"engines": { "node": ">=6" }
+	"license": "Apache-2.0"
 }

public/index.html

@@ -8,7 +8,7 @@
 <pre>
 <b><a href="http://sheetjs.com">SheetJS</a> Spreadsheet Conversion Service</b>
 
-send a request to /data?url=&lt;url&gt;&amp;N=&lt;idx&gt; to convert the spreadsheet at `url` to a simpler format
+send a request to /api/data?url=&lt;url&gt;&amp;N=&lt;idx&gt; to convert the spreadsheet at `url` to a simpler format
 
 <b>parameters:</b>
 - url=&lt;url&gt;      the url to request
@@ -39,7 +39,7 @@ var URLS = [
 var parms = ["N", "t"];
 for(var i = 0; i < URLS.length; ++i) {
 	if(URLS[i].length < 2) { document.getElementById("examples").innerHTML += (URLS[i][0]||"") + "\n"; continue; }
-	var path = '/data?url=' + URLS[i][1].url;
+	var path = '/api/data?url=' + URLS[i][1].url;
 	for(var j = 0; j < parms.length; ++j) if(URLS[i][1][parms[j]]) path += '&' + parms[j] + '=' + URLS[i][1][parms[j]];
 	document.getElementById("examples").innerHTML += '- ' + URLS[i][0] + ' <a href="' + path + '">' + path + '</a>\n';
 }
@@ -51,7 +51,7 @@ for(var i = 0; i < URLS.length; ++i) {
 
 - <a href="https://github.com/SheetJS/sheetaki">Source code for this service</a>
 
-- <a href="https://github.com/SheetJS/js-xlsx">Source code for the js-xlsx spreadsheet library</a>
+- <a href="https://github.com/SheetJS/sheetjs">Source code for the SheetJS spreadsheet library</a>
 </pre>
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