Hi, I am working with Pulumi typescript and following the kubernetes getting started example. at one point we get the IP address of a service

const ip = frontend.status.loadBalancer.apply(
    (lb) =>  lb.ingress[0].ip || lb.ingress[0].hostname
);

I am trying to use this IP in a client (Browser) application configuration. But I am not able to convert it into a string . I tried different methods including

ip.apply(i => `http://${i}/abc`)

Second

pulumi.interpolate `http://${ip}/abc`

Third

pulumi.concat(`http://`, ip, `/abc`)

Every time I get the same error,

toString()

is not supported, or

toJSON()

is not supported. Can someone help me please ?

All 3 options return an

Output<string>

, and you can’t call

toString()

or

toJSON()

on outputs.

Output<T>

is are similar to a promise, in that it represents a value that might not be present. Because an

Output<T>

might not ever resolve (for example, during

pulumi preview

), it can’t be awaited. You need to put whatever needs a raw

string

inside an

apply

.