Fetch : Argument Of Type 'string | Undefined' Is Not Assignable To Parameter Of Type 'RequestInfo'

Im receiving the following error in the 'fetchUrl' argument in the fetch function Argument of type 'string | undefined' is not assignable to parameter of type 'RequestInfo'. In t

Solution 1:

Use the any data type in the fetch function to disallow type checking.

let fetchUrl = getBaseUrlNative( process.env.APP_DATA, `/v2/marketing/app/file/${file}?cookies=${cookieSess}&expires=${Date.now()}`)

    await fetch(<any>fetchUrl, { method: 'get' , cache:"no-store" , headers: {
        'Cache-Control': 'no-cache'
      }})
         .then(res => res.blob())
         .then(res => {  .......