index.js

"use strict";var __awaiter=this&&this.__awaiter||function(e,r,t,s){return new(t||(t=Promise))(function(n,a){function i(e){try{d(s.next(e))}catch(e){a(e)}}function o(e){try{d(s.throw(e))}catch(e){a(e)}}function d(e){var r;e.done?n(e.value):(r=e.value,r instanceof t?r:new t(function(e){e(r)})).then(i,o)}d((s=s.apply(e,r||[])).next())})},__generator=this&&this.__generator||function(e,r){var t,s,n,a,i={label:0,sent:function(){if(1&n[0])throw n[1];return n[1]},trys:[],ops:[]};return a={next:o(0),throw:o(1),return:o(2)},"function"==typeof Symbol&&(a[Symbol.iterator]=function(){return this}),a;function o(a){return function(o){return function(a){if(t)throw new TypeError("Generator is already executing.");for(;i;)try{if(t=1,s&&(n=2&a[0]?s.return:a[0]?s.throw||((n=s.return)&&n.call(s),0):s.next)&&!(n=n.call(s,a[1])).done)return n;switch(s=0,n&&(a=[2&a[0],n.value]),a[0]){case 0:case 1:n=a;break;case 4:return i.label++,{value:a[1],done:!1};case 5:i.label++,s=a[1],a=[0];continue;case 7:a=i.ops.pop(),i.trys.pop();continue;default:if(!(n=(n=i.trys).length>0&&n[n.length-1])&&(6===a[0]||2===a[0])){i=0;continue}if(3===a[0]&&(!n||a[1]>n[0]&&a[1]<n[3])){i.label=a[1];break}if(6===a[0]&&i.label<n[1]){i.label=n[1],n=a;break}if(n&&i.label<n[2]){i.label=n[2],i.ops.push(a);break}n[2]&&i.ops.pop(),i.trys.pop();continue}a=r.call(e,i)}catch(e){a=[6,e],s=0}finally{t=n=0}if(5&a[0])throw a[1];return{value:a[0]?a[1]:void 0,done:!0}}([a,o])}}},__importDefault=this&&this.__importDefault||function(e){return e&&e.__esModule?e:{default:e}};exports.__esModule=!0;var sharp_1=__importDefault(require("sharp")),ethers_1=require("ethers"),express_1=__importDefault(require("express")),tile_1=require("./tile"),port=9600,app=express_1.default();app.get("*",function(e,r,t){r.header("Access-Control-Allow-Origin","*"),"OPTIONS"===e.method?r.status(200).end():t()});var baseUrl="http://api.tiles.art/";app.get("/tile/:address",function(e,r){var t=checkAddressExists(e.params.address,r);if(t)try{r.setHeader("Content-Type","image/svg+xml").send(tile_1.tileForAddress(t).svg()).end()}catch(e){r.status(500).send("Couldn't render Tile for address: "+t+". Error: "+e)}}),app.get("/svg/:address",function(e,r){var t=checkAddressExists(e.params.address,r);if(t)try{r.setHeader("Content-Type","image/svg+xml").send(tile_1.tileForAddress(t).svg()).end()}catch(e){r.status(500).send("Couldn't render Tile for address: "+t+". Error: "+e)}}),app.get("/png/:address",function(e,r){return __awaiter(void 0,void 0,void 0,function(){var t,s,n,a;return __generator(this,function(i){switch(i.label){case 0:return(t=checkAddressExists(e.params.address,r))?(3,s=tile_1.tileForAddress(t,"string"==typeof(null===(a=e.query)||void 0===a?void 0:a.scale)&&parseFloat(e.query.scale)||3).svg(),[4,sharp_1.default(Buffer.from(s)).toFormat("png",{compressionLevel:1,palette:!0}).toBuffer()]):[2];case 1:n=i.sent();try{r.setHeader("Content-Type","image/png").send(n).end()}catch(e){r.status(500).send("Couldn't render Tile for address: "+t+". Error: "+e)}return[2]}})})}),app.get("/metadata/:address",function(e,r){var t=checkAddressExists(e.params.address,r);t&&r.json({name:"0x"+t,image:baseUrl+"png/"+t,description:"**0x"+t+"** &NewLine;&NewLine; [SVG]("+baseUrl+"svg/"+t+") &NewLine;&NewLine; [PNG]("+baseUrl+"png/"+t+"?scale=5)"}).end()}),app.get("*",function(e,r){return r.sendStatus(404).end()});var checkAddressExists=function(e,r){var t=e.startsWith("0x")?e.slice(2):e;if(ethers_1.utils.isAddress(t)&&40===t.length)return t;r.status(404).send("Not a valid ETH address").end()},server=app.listen(process.env.PORT||port,function(){console.log("Server now listening on port",server.address().port)});