To run Typescript in Node, you can either compile the code in advance, or at runtime. Doing this at runtime is convenient, since you probably would be compiling + running the code at the same time every time you run your application.<\/p>\n
The easiest way I’ve found to do this is to install ts-node:<\/p>\n
\nnpm install ts-node\n<\/pre>\nThen make a small index.js script, which functions as a shim. All the Express.js code can then be moved into a Typescript file.<\/p>\n
index.js:<\/p>\n
\n\/\/ Fix incompatibility between React 15 and different Webkit versions\ndelete Object.assign;\nObject.assign = require(\"object.assign\").shim();\n\n\/\/ Allow Node to read JSX files\nrequire(\"node-jsx\").install({extension: \".jsx\"});\n\n\/\/ Allow Node to read TS + TSX files\nrequire(\"ts-node\").register();\n\nrequire(\".\/app.ts\")[\"init\"]();\n<\/pre>\nIn the app.ts file, you can add all of the regular Express initialization things, as you’d expect, but now you can use types:<\/p>\n
\nfunction init() {\n const express = require(\"express\");\n const router = express.Router();\n\n router.use(function (req,res,next) {\n next();\n });\n}\n\nexport { init as init };\n<\/pre>\nI wrapped the entire thing in a function, which is exported and called by the main index.js script.<\/p>\n","protected":false},"excerpt":{"rendered":"
Running Typescript from within Node<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[4],"tags":[302,387],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t