Hi i have a c stack reference a nodejs stack i stuck at when

Question

Hi i have a c stack reference a nodejs stack i stuck at when get the reference the nodejs stack s output i just write below code to solve the type cast any better method

echoing-dinner-19531 · Answer

You could avoid the `apply` call with <https www pulumi com blog stack reference output details |outputDetails> I think you should be able to cast directly to `ImmutableArray lt object gt ` and then pull out the inner object and cast that to a string Shouldn t have to go through the whole JSON serialise deserialise loop Def something we want to make better here though

cuddly-angle-21517 · Answer

System Reflection TargetInvocationException Exception has been thrown by the target of an invocation at object RuntimeType CreateInstanceOfT at T Activator CreateInstance lt T gt at Task lt int gt Pulumi Deployment+Runner Pulumi IRunner RunAsync lt TStack gt IServiceProvider serviceProvider + = gt at Task lt int gt Pulumi Deployment+Runner RunAsync lt TStack gt Func lt TStack gt stackFactory gt System InvalidCastException Unable to cast object of type System Object to type System String at ImmutableArray lt TOther gt System Collections Immutable ImmutableArray lt T gt CastArray lt TOther gt at new UgcPubInfraStack in E codes wired wired ugc pub infra UgcPubInfraStack cs line 44 at object RuntimeType CreateInstanceOfT End of inner exception stack trace

echoing-dinner-19531 · Answer

I meant cast both so like ``` string ImmutableArray lt object gt await networkStackRef GetOutputDetailsAsync eksVpcPrivateSubnetIds Value ```

cuddly-angle-21517 · Answer

严重性 代码 说明 项目 文件 行 禁止显示状态 错误 CS0030 无法将类型 System Collections Immutable ImmutableArray lt object gt 转换为 string wired ugc pub infra E codes wired wired ugc pub infra UgcPubInfraStack cs 53 活动

cuddly-angle-21517 · Answer

this chinese is means can t cast System Collections Immutable ImmutableArray lt object gt to string

echoing-dinner-19531 · Answer

Oh ops missed the indexer face palm ``` string ImmutableArray lt object gt await networkStackRef GetOutputDetailsAsync eksVpcPrivateSubnetIds Value 0 ```

cuddly-angle-21517 · Answer

i m new to csharp why i can t castArray lt string gt if i need the subnetIds array how to do it

echoing-dinner-19531 · Answer

oh you could if you need the whole array ``` ImmutableArray lt object gt await networkStackRef GetOutputDetailsAsync eksVpcPrivateSubnetIds Value CastArray lt string gt ```

cuddly-angle-21517 · Answer

I have tried the code but got these error ```System Reflection TargetInvocationException Exception has been thrown by the target of an invocation at object RuntimeType CreateInstanceOfT at T Activator CreateInstance lt T gt at Task lt int gt Pulumi Deployment+Runner Pulumi IRunner RunAsync lt TStack gt IServiceProvider serviceProvider + = gt at Task lt int gt Pulumi Deployment+Runner RunAsync lt TStack gt Func lt TStack gt stackFactory gt System InvalidCastException Unable to cast object of type System Object to type System String at ImmutableArray lt TOther gt System Collections Immutable ImmutableArray lt T gt CastArray lt TOther gt at new UgcPubInfraStack in E codes wired wired ugc pub infra UgcPubInfraStack cs line 59 at object RuntimeType CreateInstanceOfT End of inner exception stack trace ```

echoing-dinner-19531 · Answer

Try `As` instead of `CastArray`

cuddly-angle-21517 · Answer

Compiler Error <https learn microsoft com en us dotnet csharp language reference compiler messages cs0039 f1url= 3FappId 3Droslyn 26k 3Dk CS0039 |CS0039>

echoing-dinner-19531 · Answer

Oh disappointed one sec let me load up visual studio

echoing-dinner-19531 · Answer

Right ok the Cast methods on ImmutableArray are for direct array casts not per element casts so you need to use Linq s cast method for this ```ImmutableArray Create ImmutableArray lt object gt await networkStackRef GetOutputDetailsAsync eksVpcPrivateSubnetIds Value Cast lt string gt ``` Make sure `using System Linq ` is at the top of the file

cuddly-angle-21517 · Answer

```var subnetIds = ImmutableArray Create ImmutableArray lt object gt await networkStackRef GetOutputDetailsAsync eksVpcPrivateSubnetIds Value Cast lt string gt System Console WriteLine subnetIds First ```

cuddly-angle-21517 · Answer

System Reflection TargetInvocationException Exception has been thrown by the target of an invocation at object RuntimeType CreateInstanceOfT at T Activator CreateInstance lt T gt at Task lt int gt Pulumi Deployment+Runner Pulumi IRunner RunAsync lt TStack gt IServiceProvider serviceProvider + = gt at Task lt int gt Pulumi Deployment+Runner RunAsync lt TStack gt Func lt TStack gt stackFactory gt System InvalidCastException Unable to cast object of type System Collections Immutable ImmutableArray`1 System Object to type System String at IEnumerable lt TResult gt System Linq Enumerable CastIterator lt TResult gt IEnumerable source +MoveNext at TSource System Linq Enumerable TryGetFirst lt TSource gt IEnumerable lt TSource gt source out bool found at TSource System Linq Enumerable First lt TSource gt IEnumerable lt TSource gt source at new UgcPubInfraStack in E codes wired wired ugc pub infra UgcPubInfraStack cs line 57 at object RuntimeType CreateInstanceOfT End of inner exception stack trace

cuddly-angle-21517 · Answer

``` var array = ImmutableArray lt object gt networkingStackRef GetOutputDetailsAsync eksVpcPrivateSubnetIds Result Value Cast lt string gt ToArray ``` the code above is ok

cuddly-angle-21517 · Answer

I prefer rust to c terrible type cast

echoing-dinner-19531 · Answer

We ll probably do a Rust SDK at some point casts are always tricky