RTG

Relational (SQL) to Graph (GraphQL) transformation tool. Fast.
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About

rtg is a versatile relational (SQL) to graph (GraphQL) transformation tool in rust, for rust, javascript, typescript, and maybe python.

Here is the architecture of RTG, with the current area of focus in bold:

Built With

• Rust
• NodeJS

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Getting Started

To get started using rtg,

Prerequisites

This is an example of how to list things you need to use the software and how to install them.

• npm

  npm install npm@latest -g

Installation

1. Clone the repo

   git clone https://github.com/rtg-project/rtg.git

2. Install NPM packages

   npm install

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Usage

• Create a Model
• Process a graphql document using this model

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Features

SQL to GraphQL matching coverage

SQL Concept	GraphQL Concept	Model	Query	GraphQL Schema	SQL Schema
Basic columns: INT, TEXT, etc.	Scalar fields: Integer, String, etc.	🟢	🟢	🟢	🟢
Non null columns NON NULL	Non null fields: Integer!, String!, etc.	🟢	🟢	🟢	🟢
Array columns: INT[], TEXT[], INTARRAY, etc.	Array fields: [Integer!]!, [String!]!, etc.	🟢	🟢	🟢	🟢
SELECT	allFoo queries	🟢	🟢	🟢	🟢
JOIN and FOREIGN KEY	Relation Fields: [Foo!]!, [Bar!]!, etc.	🔴	🔴	🔴	🔴
LIMIT and OFFSET	first, last, before, after arguments	🔴	🔴	🔴	🔴
CURSOR	allFooConnection queries	🔴	🔴	🔴	🔴
WHERE	where: {} argument, simple filter	🔴	🔴	🔴	🔴
ORDER BY	order: {} argument	🔴	🔴	🔴	🔴
INSERT	createFoo mutations	🔴	🔴	🔴	🔴
UPDATE	updateFoo mutations	🔴	🔴	🔴	🔴
DELETE	deleteFoo mutations	🔴	🔴	🔴	🔴
WHERE with JOIN	where: {} argument, relation filter	🔴	🔴	🔴	🔴
GROUP BY	aggregates field on allFooConnection queries	🔴	🔴	🔴	🔴
HAVING	where: {} argument, aggregation filter	🔴	🔴	🔴	🔴

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Roadmap

See the project road map on Github https://github.com/rtg-project/rtg/projects/1

• Generate SQL Data Manipulation Language (DML) queries from GraphQL:
• Generate GraphQL SDL Schema from Rtg Model:
  • Generate GraphQL SDL introspection schema from Rtg Model
  • Validate GraphQL queries against the generated GraphQL SDL introspection schema
• Integrate Rtg Model and GraphQL Schema Definition Language (SDL):
  • Generate Rtg Model from a GraphQL SDL
  • Generate GraphQL SDL from a Rtg Model
• Integrate Rtg Model and SQL Data Definition Language (DDL) schemas:
  • Generate Rtg Model from a Database DDL schema
  • Generate Database DDL schema from a Rtg Model
• Automatically generate Typescript client SDK using [GraphQL codegen](graphql codegen)
  • Generate basic client SDK
  • Add features such as pagination streaming
• Automatically generate Python client SDK using Sgqlc
  • Generate basic client SDK
  • Add features such as pagination streaming
• Real time features
  • Support GraphQL Subscriptions

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Contributing

Not taking external contributions at this point

To test all packages, run:

cargo test --workspace -- --color always --nocapture

To run all tests in watch mode, run:

cargo watch --clear -x 'test --workspace -- --color always --nocapture' 

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License

rtg is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0).

See LICENSE for details.

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Contact

Vincent Lecrubier - @VLecrubier

Project Link: https://github.com/rtg-project/rtg/

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Acknowledgments

Use this space to list resources you find helpful and would like to give credit to. I've included a few of my favorites to kick things off!

• Vercel for hosting
• NextJS for the website
• SWC for the inspiration of a brilliant rust/typescript tool
• othneildrew for the Best-README-Template

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