curl --location --request GET 'http://dev-cn.your-api-server.com/packs/123/versions/1.2.3/sourceCode'
{
"files": [
{
"filename": "main.ts",
"url": "https://coda-us-west-2-packs.s3.us-west-2.amazonaws.com/packs/123/1/main.ts"
}
]
}