TypeBridge is a typed application toolkit for TypeDB. A versioned Split-YAML workspace is the schema authority. TypeBridge validates that workspace and generates Python, TypeScript/Node, Rust, and C bindings that share one Rust-owned schema, query, migration, validation, and ORM engine.
One system, four generated SDKs
| Surface | Generated application API | Distribution |
|---|---|---|
| Python | Value classes, model managers, transactions, direct/remote queries | type-bridge |
| TypeScript / Node | Branded values, model managers, native and remote queries | @type-bridge/node |
| Rust | Schema-bound create/model types, async CRUD and immutable queries | type-bridge |
| C | Generated nominal models, transactions, direct/remote queries | Ubuntu 24.04 x86_64 shared runtime |
| CLI | Split-YAML checks, migrations, and all four projections | Python package or standalone Linux archive |
| Server | Remote V2 query execution over the same generated contract | ghcr.io/ds1sqe/type-bridge-server |
TypeBridge preserves TypeDB concepts directly: independent attributes, entities, relations, roles, inheritance, cardinality, ordering, keys, and uniqueness remain typed from schema through hydrated results.
Start from Split-YAML
Install the CLI and Python runtime:
pip install type-bridge
Create typebridge.yaml, a schema-set manifest, and one or more schema
fragments. Configure the generated package output in the workspace, then run:
type-bridge --manifest typebridge.yaml schema check
type-bridge --manifest typebridge.yaml schema generate
type-bridge --manifest typebridge.yaml migration make --name initial
type-bridge --manifest typebridge.yaml migration apply --environment development
One generation snapshot writes every configured Python, TypeScript, Rust, and C
package. Generated packages privately embed the verified authority used by
their managers and direct or remote queries, so ordinary applications never
configure or read an external authority JSON. A workspace deploying the optional
generic server can additionally configure artifacts.schema-authority.output;
the server mounts that generated, source-free artifact instead of compiling
YAML or accepting a user-maintained JSON schema.
The generated Python package owns the concise single-type manager:
from app_models import Age, Person, PersonId
from type_bridge import Database
db = Database(address="localhost:1729", database="example")
db.connect()
ada = Person(person_id=PersonId("ada"), age=Age(36))
Person.manager(db).put(ada)
people = Person.manager(db).filter(age__gte=18).all()
Use its package-local query session when a query spans types. Query
terminals are coroutines; a script without an event loop wraps the session in
blocking:
from type_bridge_core import blocking
session = blocking(Person.query(db))
person = session.exact(Person)
adults = (
session.query(person)
.where(person.field(Person.age).gte(Age(18)))
.rows(limit=100)
)
Continue with the Python quick start, Split-YAML reference, and data guide.
TypeScript / Node
npm install @type-bridge/node
Import application values from the generated package and connection primitives
from @type-bridge/node:
import { RustDatabase } from "@type-bridge/node";
import { Age, Person, PersonId } from "./generated/models/index.js";
const db = RustDatabase.connect("localhost:1729", "example", {
username: "admin",
password: "password",
});
const ada = Person.create({
personId: PersonId.create("ada"),
age: Age.create(36n),
});
Person.manager(db).put(ada);
const people = Person.manager(db).filter({ age__gte: Age.create(18n) }).all();
See the TypeScript/Node guide for generated managers, transactions, and direct/remote queries.
Rust
The same workspace emits a schema-bound Rust crate. The generated SDK uses
Rust 1.88+ and the crates.io type-bridge runtime:
[dependencies]
type-bridge = "2"
Follow the Rust client guide for generation, direct execution, transactions, and remote queries.
C
TypeBridge 2.3 ships a C ABI 1.7 shared runtime and standalone CLI for Ubuntu 24.04 on x86_64 GNU/Linux. Generate an application schema package from Split-YAML, then link C17 or C++17 consumers with CMake or pkg-config.
See the C SDK guide for signed archives, installation, generation, and the exact supported matrix.
Documentation
- Install a surface
- Model data in Split-YAML
- Read and write generated models
- Manage schemas and migrations
- Run the query server
- Browse the Cargo package index
- Compatibility and removals
Development
uv sync --extra dev
uv run pytest
./test.sh
./scripts/check.sh all
uv run --extra docs mkdocs build --strict
See DEVELOPMENT.md for repository boundaries and verification.
License
TypeBridge-authored code is MIT licensed. Native artifacts also include third-party TypeDB components under Apache-2.0 and MPL-2.0; exact notices ship with each artifact.
1 maintainer
Metadata
1 maintainer
Release files for type-bridge 2.3.0
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