fix(firestore): remove deprecated library firestore-gorilla-sessions #5312
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…a direct implementation of fs client
…samples into garciadiaz-fix-sessions-403118194
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Hello @OremGLG, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
Summary of Changes
This pull request addresses the deprecation of the firestore-gorilla-sessions library by implementing a direct Firestore session management approach. It includes a new sample demonstrating this implementation, effectively resolving issue b/403118194. The changes primarily involve removing the deprecated library and updating the session handling logic to interact directly with Firestore.
Highlights
- Dependency Removal: The
firestore-gorilla-sessionsdependency has been removed fromgo.modandgo.sum, as it is deprecated. - Direct Firestore Implementation: The session management logic in
main.gohas been updated to directly use Firestore for session storage, eliminating the need for the deprecated library. - Cookie-Based Session Handling: The session identifier is now stored in a cookie named
session_id, and the session data is retrieved and updated directly in Firestore based on this identifier. - Test Update: The test case has been updated to reflect the new session handling mechanism and includes a cleanup function to delete test documents.
Changelog
Click here to see the changelog
- getting-started/sessions/go.mod
- Removed
github.com/GoogleCloudPlatform/firestore-gorilla-sessionsandgithub.com/gorilla/sessionsdependencies. - Removed
github.com/gorilla/securecookieindirect dependency.
- Removed
- getting-started/sessions/go.sum
- Removed entries related to
github.com/GoogleCloudPlatform/firestore-gorilla-sessionsand other unused dependencies. - Removed a large number of indirect dependencies that are no longer needed.
- Removed entries related to
- getting-started/sessions/main.go
- Updated copyright year from 2019 to 2025.
- Removed import of
firestoregorillaandgorilla/sessions. - Introduced
sessionstruct to store session data. - Modified
newAppfunction to acceptprojectIDandcollectionIDand return anappstruct directly. - Implemented cookie-based session handling in the
indexfunction. - Implemented direct Firestore interaction for session retrieval, creation, and update.
- getting-started/sessions/main_test.go
- Updated copyright year from 2019 to 2025.
- Updated
TestIndexto align with the new session handling mechanism. - Added
cleanupfunction to delete test documents after the test.
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The session's ID,
A cookie's gentle guide,
Firestore's embrace warm.
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Code Review
The pull request removes the deprecated firestore-gorilla-sessions library and implements a direct Firestore session management. The changes include updating dependencies in go.mod and go.sum, modifying the main application logic to handle sessions directly with Firestore, and updating the test file to reflect these changes. Overall, the changes seem well-structured and address the issue of using a deprecated library.
Summary of Findings
- Error Handling in
indexfunction: Theindexfunction inmain.gocontains multiple error handling blocks that uselog.Printffollowed byhttp.Error. It would be more efficient to create a helper function to handle these errors consistently. - Missing License Header Check in Test File: The test file
main_test.godoes not have a check for theGOLANG_SAMPLES_FIRESTORE_PROJECTenvironment variable before proceeding with the tests. This could lead to unexpected behavior or failures if the environment variable is not set. - Collection Cleanup: The cleanup function in
main_test.goiterates through all documents in the test collection and deletes them. This could be slow and inefficient for large collections. Consider using a more efficient method for cleaning up the test data.
Merge Readiness
The pull request is almost ready for merging. However, I recommend addressing the error handling consistency in the index function and ensuring that the test environment is properly set up before merging. I am unable to directly approve this pull request, and other reviewers should review and approve this code before merging.
| if err != nil { | ||
| log.Printf("doc.Get error: %v", err) | ||
| http.Error(w, "Error getting session", http.StatusInternalServerError) | ||
| return |
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Consider creating a helper function to handle Firestore errors consistently. This will reduce code duplication and improve maintainability.
handleFirestoreError(w, "doc.Get error", err)
// Helper function
func handleFirestoreError(w http.ResponseWriter, message string, err error) {
log.Printf("%s: %v", message, err)
http.Error(w, "Error getting session", http.StatusInternalServerError)
}| func TestIndex(t *testing.T) { | ||
|
|
||
| projectID := os.Getenv("GOLANG_SAMPLES_FIRESTORE_PROJECT") |
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Consider skipping the test if the GOLANG_SAMPLES_FIRESTORE_PROJECT environment variable is not set, similar to the original implementation.
| projectID := os.Getenv("GOLANG_SAMPLES_FIRESTORE_PROJECT") | |
| if projectID == "" { | |
| t.Skip("GOLANG_SAMPLES_FIRESTORE_PROJECT not set") | |
| } |
| for { | ||
| doc, err := iter.Next() | ||
| if err != nil { | ||
| // Handle the case where the collection might not exist or other errors | ||
| if err.Error() == "iterator ended" { | ||
| log.Printf("Collection %s cleaned up or did not exist.", collectionID) | ||
| return | ||
| } | ||
| log.Printf("Error iterating documents in %s: %v", collectionID, err) | ||
| return | ||
| } | ||
| _, err = doc.Ref.Delete(ctx) | ||
| if err != nil { | ||
| log.Printf("Error deleting document %s in %s: %v", doc.Ref.ID, collectionID, err) | ||
| } |
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Consider adding a timeout to the cleanup process to prevent indefinite hanging in case of issues with Firestore. Also, consider using DeleteAll if available for more efficient cleanup.
// Add a timeout to the cleanup process
ctx, cancel := context.WithTimeout(ctx, 30*time.Second)
defer cancel()
iter := client.Collection(collectionID).Documents(ctx)
for {
doc, err := iter.Next()
if err != nil {
// Handle the case where the collection might not exist or other errors
if err == iterator.Done {
log.Printf("Collection %s cleaned up or did not exist.", collectionID)
return
}
log.Printf("Error iterating documents in %s: %v", collectionID, err)
return
}
_, err = doc.Ref.Delete(ctx)
if err != nil {
log.Printf("Error deleting document %s in %s: %v", doc.Ref.ID, collectionID, err)
}
}
Description
Add new sample for sessions, this sample has a direct implementation of Firestore for to avoid using the deprecated package firestore-gorilla-sessions package.
Fixes b/403118194
Note: Before submitting a pull request, please open an issue for discussion if you are not associated with Google.
Follow up from PRs: #5237 and #5287
Checklist
go test -v ./..(see Testing)gofmt(see Formatting)go vet(see Formatting)Please merge this PR once approved.