diff --git a/packages/artifact/src/internal/artifact-http-client.ts b/packages/artifact/src/internal/artifact-http-client.ts
index bab4d7bb..933f5000 100644
--- a/packages/artifact/src/internal/artifact-http-client.ts
+++ b/packages/artifact/src/internal/artifact-http-client.ts
@@ -56,7 +56,7 @@ export class ArtifactHttpClient implements Rpc {
 
                 isRetryable = this.isRetryableStatusCode(statusCode)
                     errorMessage = `Artifact service responded with ${statusCode}`
-            } catch (error: any) {
+            } catch (error) {
                 isRetryable = true
                 errorMessage = error.message
             }
diff --git a/packages/artifact/src/internal/config.ts b/packages/artifact/src/internal/config.ts
index cd95e34d..bffaf15d 100644
--- a/packages/artifact/src/internal/config.ts
+++ b/packages/artifact/src/internal/config.ts
@@ -30,8 +30,13 @@ export function getWorkSpaceDirectory(): string {
     return workspaceDirectory
 }
   
-export function getRetentionDays(): string | undefined {
-    return process.env['GITHUB_RETENTION_DAYS']
+export function getRetentionDays(): number | undefined {
+    //const retentionDays = process.env['GITHUB_RETENTION_DAYS']
+    const retentionDays = "30"
+    if (!retentionDays) {
+      return undefined
+    }
+    return parseInt(retentionDays)
 }
 
 export function getInitialRetryIntervalInMilliseconds(): number {
diff --git a/packages/artifact/src/internal/upload/tmp/twirp_testing.ts b/packages/artifact/src/internal/upload/tmp/twirp_testing.ts
index 8c721833..f9c08858 100644
--- a/packages/artifact/src/internal/upload/tmp/twirp_testing.ts
+++ b/packages/artifact/src/internal/upload/tmp/twirp_testing.ts
@@ -1,12 +1,25 @@
 import { ArtifactHttpClient } from '../../artifact-http-client'
-import { ArtifactServiceClientJSON } from '../../../generated/results/api/v1/artifact.twirp'
+import { ArtifactServiceClientJSON, CreateArtifactRequest, Timestamp } from '../../../generated'
+import { getBackendIds, BackendIds } from '../../util' 
+import { getRetentionDays } from '../../config'
 
 export async function twirpTest(){
+    const name = Math.random().toString()
+    const backendIDs: BackendIds = getBackendIds()
+    const createReq: CreateArtifactRequest = {workflowRunBackendId: backendIDs.workflowRunBackendId, workflowJobRunBackendId: backendIDs.workflowJobRunBackendId, name: name, version: 4}
+    const retentionDays = getRetentionDays()
+    if (retentionDays) {
+        const expirationDate = new Date()
+        expirationDate.setDate(expirationDate.getDate() + retentionDays)
+        createReq.expiresAt = Timestamp.fromDate(expirationDate)
+    }
+
+    console.log("CreateArtifact request: " + JSON.stringify(createReq))
     const artifactClient = new ArtifactHttpClient('@actions/artifact-upload')
     const jsonClient = new ArtifactServiceClientJSON(artifactClient)
 
     try {
-        const createResp = await jsonClient.CreateArtifact({workflowRunBackendId: "ce7f54c7-61c7-4aae-887f-30da475f5f1a", workflowJobRunBackendId: "ca395085-040a-526b-2ce8-bdc85f692774", name: Math.random().toString(), version: 4})
+        const createResp = await jsonClient.CreateArtifact(createReq)
 
         if (!createResp.ok) {
             console.log("CreateArtifact failed")
@@ -15,7 +28,7 @@ export async function twirpTest(){
 
         console.log(createResp.signedUploadUrl)
 
-        const finalizeResp = await jsonClient.FinalizeArtifact({workflowRunBackendId: "ce7f54c7-61c7-4aae-887f-30da475f5f1a", workflowJobRunBackendId: "ca395085-040a-526b-2ce8-bdc85f692774", name: Math.random().toString(), size: BigInt(5)})
+        const finalizeResp = await jsonClient.FinalizeArtifact({workflowRunBackendId: "ce7f54c7-61c7-4aae-887f-30da475f5f1a", workflowJobRunBackendId: "ca395085-040a-526b-2ce8-bdc85f692774", name: name, size: BigInt(5)})
 
         if (!finalizeResp.ok) {
             console.log("FinalizeArtifact failed")