Important

MantisBase is being reworked in Rust. This repository is the active rewrite. Behaviour and APIs may differ from earlier C++ releases, and feature parity is not guaranteed yet—some capabilities described in older marketing or in doc/ may be planned, partial, or unchanged only on legacy binaries. Treat this notice as authoritative until it is removed.

A lightweight Backend-as-a-Service (BaaS) in Rust — single binary, schemas, REST, and an admin UI
Local libSQL by default; Turso and PostgreSQL are included in the binary and chosen at runtime (--db).

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What is MantisBase?

MantisBase is a small backend you run yourself: define entity schemas, get JSON REST routes, enforce access rules, serve the admin dashboard under /mb, and optionally register webhooks. Admin accounts live in a dedicated table; application users (JWT login) use a single central mb_user table—not a special entity type in the catalog.

The rewrite targets the same product goals as the original C++ stack (speed, embeddability, clarity) with a smaller runtime surface while features land incrementally.

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Quick start (this tree — Rust)

Prerequisites

• Rust (see rust-version in Cargo.toml)

PostgreSQL is supported via the bundled sqlx client; no separate Cargo feature is required. You only need a running Postgres instance when using --db postgresql.

Build troubleshooting (Disk quota exceeded in /tmp)

Native dependencies (ring, libsql-sqlite3-parser, etc.) invoke the C compiler, which often writes temporary .s files under /tmp. If that filesystem is full or over quota, you will see errors like error writing to /tmp/cc….s: Disk quota exceeded.

Point the compiler at a directory on a volume with space:

mkdir -p /path/with/quota/headroom/tmp
export TMPDIR=/path/with/quota/headroom/tmp
cargo build

Optionally also set CARGO_TARGET_DIR to a path on the same volume if your default target dir is quota-limited.

Build and run

git clone https://github.com/allankoechke/mantisbase.git
cd mantisbase
cargo build --release

Build the admin SPA (Vite → public/mb-dist/, served at /mb/):

cd admin && npm install && npm run build && cd ..

Apply migrations, create an admin, set a JWT secret for app-user login, then serve:

./target/release/mantisbase migrations up
./target/release/mantisbase admins add admin@example.com 'your-admin-password'
export MB_JWT_SECRET='a-long-random-secret-for-user-jwt'
./target/release/mantisbase serve

Defaults:

• API: http://127.0.0.1:7070/api/v1/
• Admin UI: http://127.0.0.1:7070/mb/ — compiled assets from ./public/mb-dist (override with --admin-ui-dir or MB_ADMIN_UI_DIR). Use HTTP Basic in the browser where the UI calls the API.

OpenAPI for the running shape of the API: GET /api/v1/openapi.json.

Admin accounts over HTTP (/api/v1/admins)

With admin Basic auth: GET /api/v1/admins lists { "admins": [ { "id", "email" }, … ] }; POST /api/v1/admins with {"email":"…","password":"…"} creates another admin; DELETE /api/v1/admins/{id-or-email} removes one (URL-encode the path segment). The CLI mantisbase admins … commands do the same against the database.

Create a schema (admin Basic auth)

Admin routes expect Authorization: Basic … (email:password), not a bearer “admin token”.

curl -sS -u 'admin@example.com:your-admin-password' \
  -X POST http://127.0.0.1:7070/api/v1/sys/schemas \
  -H 'Content-Type: application/json' \
  -d '{
    "name": "posts",
    "type": "base",
    "fields": [
      {"name": "title", "type": "string", "required": true},
      {"name": "content", "type": "string"}
    ],
    "rules": {
      "list": {"mode": "public", "expr": ""},
      "get": {"mode": "public", "expr": ""},
      "add": {"mode": "auth", "expr": ""},
      "update": {"mode": "auth", "expr": ""},
      "delete": {"mode": "", "expr": ""}
    }
  }'

Entity types (catalog): bare, base, view — there is no auth entity type; end-user sign-in is via POST /api/v1/auth/login against mb_user.

Application user login

curl -sS -X POST http://127.0.0.1:7070/api/v1/auth/login \
  -H 'Content-Type: application/json' \
  -d '{"email":"user@example.com","password":"user-password"}'

Response includes token (JWT) and user JSON. Use Authorization: Bearer <token> on routes whose rules require authenticated access.

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What is implemented vs legacy docs

Rough map for this Rust codebase (check src/http/mod.rs and OpenAPI for truth):

Area	Status
Health, OpenAPI, CORS, request logging	Implemented
`GET	POST /api/v1/sys/schemas, GET
`GET	PATCH /api/v1/sys/configs(admin),GET /api/v1/sys/logs` (admin, stub)
Entity row CRUD under /api/v1/entities/..., access rules	Implemented
Admin users: CLI or `GET	POST /api/v1/admins, DELETE /api/v1/admins/{id}` (Basic)
mb_user + POST /api/v1/auth/login + JWT	Implemented
`GET	POST /api/v1/webhooks` (admin)
Admin dashboard /mb/	Compiled Vite app (default ./public/mb-dist)
SSE realtime, file pipeline, refresh/logout auth routes, Duktape scripting, …	Not promised here; older doc/*.md may still describe the C++ server

When in doubt, prefer openapi.json and this README over historical prose.

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CLI overview

Command	Purpose
mantisbase serve	HTTP server (--host, --port)
mantisbase admins …	Add, list, or remove admin users
mantisbase migrations …	Apply or reset SQL migrations

Global flags include --data-dir, --admin-ui-dir (built SPA root), --dev, --db (libsql | turso | postgresql), and --db-url (or MB_DATABASE_URL). Turso typically needs MB_TURSO_AUTH_TOKEN.

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Configuration (environment)

Variable	Role
MB_JWT_SECRET	Required to issue JWTs from /api/v1/auth/login
MB_ADMIN_UI_DIR	Directory with built admin index.html (default ./public/mb-dist)
MB_DATABASE_URL	DB URL when using Turso/Postgres (or pass --db-url)
MB_TURSO_AUTH_TOKEN	Turso auth token when --db turso
MB_LOG_LEVEL	trace … critical

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Project layout (Rust)

mantisbase/
├── src/              # Library + `mantisbase` binary (CLI, HTTP, storage)
├── admin/            # Vite + TypeScript admin UI (`npm run build` → `public/mb-dist/`)
├── migrations/       # libSQL / Turso SQL migrations
├── migrations/postgres/
├── public/mb-dist/   # Built admin bundle (served at `/mb/`; gitignored)
├── tests/
└── doc/              # Legacy / long-form guides (may predate the Rust port)

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Optional Cargo features

• smtp — email (lettre)
• embed-js — experimental QuickJS embedding

Example: cargo build --release --features smtp

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Documentation and status

• API: GET http://<host>:<port>/api/v1/openapi.json
• Hosted book / site: may track releases; verify against this branch.
• Contributing: CONTRIBUTING.md

MantisBase remains under active development; breaking changes are possible while the Rust port catches up to the full prior surface.

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Contributing

Contributions are welcome. See CONTRIBUTING.md.

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License

MIT License © 2026 Allan K. Koech

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Resources

• GitHub repository