ts-node seems can not require json file

one of my config module like this

export interface ConfigSetting {
// some code 
}
export const config : ConfigSetting  = require('./config.json')

tsc compiles well.

when i use ts-node, it has some error like

let db = new Sequelize(config.database)
                             ^
TypeError: Cannot read property 'database' of undefined

[freewind]

I fixed my demo by adding "resolveJsonModule": true, to tsconfig.json, see: https://github.com/freewind-demos/ts-node-import-json-file-issue-demo/commit/0f9e472a462425d4324b1f911f6781de7dd20cb7

PS: resolveJsonModule is supported by typescript 2.9+ only, so old versions still have such issue

[donaldoakes]

This worked for me to prefer .ts over .json for same-named files:

export TS_NODE_PREFER_TS_EXTS=true