if I have a list of aws account outputs and want to map that to an array of account IDs, is

pulumi.all

the right way to do that?

if it's only 1 variable of type

pulumi.Output<awsAccounts>[]

then I think you can simply psuedo-js-code

const awsAccounts = Pulumi.Output<aswAccounts>[]
const accountIds = awsAccounts.map(account => account.apply(val => val.id))

idk if it's "right way to do it"

im trying to put it in an input that has type

string[]

but cannot figure out how to accomplish that and keep typescript happy

oh wait

.get()

says : This function is only callable in code that runs in the cloud post-deployment.

This function is only callable in code that runs in the cloud post-deployment. At this point all Output values will be known and can be safely retrieved. During pulumi deployment or preview execution this must not be called

hm

using the value inside the

.apply()

has worked for me in the past, but I feel that it isn't a good pattern. None of it will show in preview

if you have 3 pulumi Output<string> variables var1, var2, and var3, then pulumi.all([var1, var2, var3]) will return an Output<any[]>. You can then cast that return value to an Output<string[]>, and within later apply() calls TypeScript will treat the value as a string[] type containing the 3 strings from var1, var2, and var3. Outside of apply(), all(), and similar pulumi methods, pulumi Output types cannot be "unwrapped". So if you want to take 3 separate pulumi Outputs and compose them together into 1 pulumi Output, then utilize the values in that Output, pulumi.all followed by pulumi.apply is the most natural choice. Within the apply, the value will be of type string[] (as long as you cast the type as described above).

Thanks @acoustic-florist-12628 looks like im still missing something though