logto-local-storage

DevOps & Security

Configure local object storage for Logto user-asset uploads (MinIO as S3). Use when you see storage.not_configured, avatar upload, POST user-assets/avatar, Console image upload, collect user profile avatar field, or need MinIO/S3 for dev.

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Source SKILL.md: https://github.com/logto-io/logto/blob/HEAD/.agents/skills/logto-local-storage/SKILL.md

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Logto local storage (user assets)

When to use

Avatar upload during sign-up (collect user profile) or Account Center
Console / Management API POST …/user-assets
GET /api/user-assets/service-status returns not_configured
Console blocks adding the avatar built-in collect-profile field

Not needed for ordinary API or UI work that does not upload files.

Prerequisites

Development environment running (pnpm start:dev, Postgres, DB_URL)
Docker available for MinIO

Quick path

Read MinIO setup commands and run them.
Restart pnpm start:dev (Core loads systems.storageProvider only at startup).
Verify: curl -s -H 'development-user-id: dev' http://localhost:3001/api/user-assets/service-status → "status":"ready".

How it works

Config lives in PostgreSQL systems table, key = 'storageProvider' (JSON).
Runtime: SystemContext → buildUploadFile() → Azure / GCS / S3 (packages/core/src/utils/storage/).
There is no in-process mock; CI usually asserts storage.not_configured only.

Providers

`provider`	Use case
`S3Storage`	AWS S3 or S3-compatible (MinIO for local dev)
`AzureStorage`	Azure Blob
`GoogleStorage`	GCS

If screenshots need a specific sign-in experience, configure SIE via logto-dev-environment separately.

Troubleshooting

Symptom	Check
Still `not_configured` after SQL	Restarted core? Correct `DB_URL` / tenant DB?
Upload 500	MinIO running? Bucket exists? `forcePathStyle: true` for MinIO?
Image URL 404 in browser	`publicUrl` must be reachable from the browser host (not only from Core)

Full commands and JSON template: references/minio-setup.md.