Fix: Use /tmp for SQLite environments on Vercel serverless#1206
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Fix: Use /tmp for SQLite environments on Vercel serverless#1206
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Fixes environment creation failure on Vercel deployment where POST succeeds but GET returns 404. **Root Cause:** - LocalSQLiteEnvironmentDatabaseAdapter was trying to write to `.objectstack/data/environments/` - Vercel serverless functions have read-only filesystem except for `/tmp` - Environment provisioning failed silently when trying to create database files - POST returned 202 Accepted, but async provisioning failed - Subsequent GET requests returned 404 because environment was stuck in "failed" state **Solution:** - Detect serverless environments (VERCEL=1, AWS_LAMBDA_FUNCTION_NAME, FUNCTION_NAME) - Use `/tmp/.objectstack/data/environments/` in serverless, `.objectstack/data/environments/` in local dev - Both `sqlite` and `turso` (fallback) adapters now use the serverless-aware path **Testing:** - Environment creation will now succeed on Vercel - Local development unaffected (still uses relative path) - AWS Lambda and similar platforms also supported 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com> Co-authored-by: os-zhuang <277994282+os-zhuang@users.noreply.github.com>
Claude created this pull request from a session on behalf of
os-zhuang
April 21, 2026 14:34
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Environment creation on Vercel was silently failing: POST returned 202 Accepted but subsequent GET returned 404. The provisioning process failed because SQLite adapters tried writing to read-only filesystem paths.
Changes
Serverless environment detection in
createDefaultEnvironmentAdapters():VERCEL=1,AWS_LAMBDA_FUNCTION_NAME, orFUNCTION_NAME/tmp/.objectstack/data/environments/in serverless contexts.objectstack/data/environments/for local developmentApplied to both adapters:
sqlitedriver (direct)tursodriver (fallback when no cloud credentials configured)Implementation
Note
Production deployments should use Turso cloud credentials (
TURSO_ORG_NAME+TURSO_API_TOKEN) for persistence. SQLite in/tmpis ephemeral across cold starts.