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Fix: Use /tmp for SQLite environments on Vercel serverless #1206

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Merged
os-zhuang merged 1 commit into from
Apr 21, 2026
Merged

Fix: Use /tmp for SQLite environments on Vercel serverless #1206

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15 changes: 12 additions & 3 deletions packages/services/service-tenant/src/environment-provisioning.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -535,7 +535,8 @@ export class EnvironmentProvisioningService {
* the control-plane ObjectQL driver handles persisting the record into
* `memory-driver.json` in its native format).
* - Always register the `sqlite` adapter (writes a `.db` file per env
* under `.objectstack/data/environments/`).
* under `.objectstack/data/environments/` in local dev, or `/tmp/.objectstack/data/environments/`
* in serverless environments like Vercel where only /tmp is writable).
* - For the `turso` key:
* - if `TURSO_ORG_NAME` + `TURSO_API_TOKEN` are both set → use the
* real Turso Platform adapter (creates cloud databases);
Expand All @@ -547,7 +548,15 @@ export function createDefaultEnvironmentAdapters(
): EnvironmentDatabaseAdapter[] {
const adapters: EnvironmentDatabaseAdapter[] = [];
adapters.push(new MemoryEnvironmentDatabaseAdapter());
adapters.push(new LocalSQLiteEnvironmentDatabaseAdapter());

// Use /tmp for serverless environments (Vercel, AWS Lambda, etc.)
// These platforms only have /tmp as writable filesystem
const isServerless = env.VERCEL === '1' || env.AWS_LAMBDA_FUNCTION_NAME || env.FUNCTION_NAME;
const sqliteBaseDir = isServerless
? '/tmp/.objectstack/data/environments'
: '.objectstack/data/environments';

adapters.push(new LocalSQLiteEnvironmentDatabaseAdapter(sqliteBaseDir));

const orgName = env.TURSO_ORG_NAME;
const apiToken = env.TURSO_API_TOKEN;
Expand All @@ -557,7 +566,7 @@ export function createDefaultEnvironmentAdapters(
// Local-dev fallback: when the user picks `turso` in Studio but no
// platform creds are configured, still create a real file on disk so
// the UX is "I created an env and I can see it".
adapters.push(new LocalSQLiteEnvironmentDatabaseAdapter(undefined, 'turso'));
adapters.push(new LocalSQLiteEnvironmentDatabaseAdapter(sqliteBaseDir, 'turso'));
}
return adapters;
}
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