探客时代
PostGraphile
Execute one command (or mount one Node.js middleware) and get an instant hi...
README
PostGraphile
_Instant lightning-fast GraphQL API backed primarily by your PostgreSQL database. Highly customisable and extensible thanks to incredibly powerful plugin system._ _Formerly "PostGraphQL"._
Documentation: graphile.org/postgraphile
Crowd-funded open-source software
To help us develop this software sustainably under the MIT license, we ask
all individuals and businesses that use it to help support its ongoing
maintenance and development via sponsorship.
And please give some love to our featured sponsors 🤩:
 Surge * |  Netflix * |  The Guild * |  Chad Furman * |
 Qwick * |  Fanatics * |  Dovetail * |  Enzuzo * |
 Stellate * |  Politics Rewired |  IaSQL |
About
GraphQL is a new way of communicating with your server. It eliminates the problems of over- and under-fetching, incorporates strong data types, has built-in introspection, documentation and deprecation capabilities, and is implemented in many programming languages. This all leads to gloriously low-latency user experiences, better developer experiences, and much increased productivity. Because of all this, GraphQL is typically used as a replacement for (or companion to) RESTful API services.
PostgreSQL is the self-proclaimed “world’s most advanced open source database,” with each new release bringing more amazing features and performance gains. Thinking of your database as a plain CRUD store is now an archaic viewpoint as modern PostgreSQL can do so much for you — from authorization with Row-Level Security (RLS, introduced in PG9.5), through Foreign Data Wrappers (FDW), to real time notifications with LISTEN/NOTIFY.
PostGraphile pairs these two incredible technologies together, helping you not only build applications more rapidly, but to build lightning-fast applications. PostGraphile allows you to access the power of PostgreSQL through a well designed, extensible, customisable and incredibly performant GraphQL server. It automatically detects tables, columns, indexes, relationships, views, types, functions, comments, and more - providing a GraphQL server that is highly intelligent about your data, and that automatically updates itself without restarting when you change your database schema.
With PostGraphile, a well designed database schema should serve the basis for a well thought out API. PostgreSQL already has amazing authorization and relationship infrastructure, _why duplicate that logic_ in a custom API? A PostGraphile API is likely to provide a more performant and standards compliant GraphQL API than any created in-house, and can be built in a fraction of the time. Focus on your product and let PostGraphile worry about the API layer. Once you need to expand beyond this, we have a powerful plugin system including many community contributed plugins. For a critical evaluation of PostGraphile to determine if it fits in your tech stack, read evaluating PostGraphile for your project.
Introduction
Watch a talk by the original author Caleb at GraphQL Summit for a walk-through of building an application with PostGraphile in under 7 minutes. This was using v2 (then called PostGraphQL); we're now up to v4 which has many more bells and whistles!
Hear from the current maintainer Benjie at GraphQL Finland about the benefits of Database-Driven GraphQL Development:
Usage
Documentation: graphile.org/postgraphile
You can use PostGraphile via the CLI, as a Node.js middleware, or use the GraphQL schema directly. Make sure to check out the full usage instructions on the documentation website. We also have a PostgreSQL schema design guide you can follow to build a fully functional PostGraphile API.
CLI
To get started you can install PostGraphile globally:
- ``` sh
- npm install -g postgraphile
- ```
…and then just run it! By default, PostGraphile will connect to your local database at postgres://localhost:5432 and introspect the public schema. See the available CLI flags with:
- ``` sh
- postgraphile --help
- ```
When you're ready to use PostGraphile for your own project, you're advised to install it locally with yarn, and run it with npx:
- ``` sh
- yarn add postgraphile
- npx postgraphile --help
- ```
macOS users: PostGraphile has used port 5000 by default for 5+ years; recently Apple decided to bind the AirPlay service to port 5000 causing a conflict. Please use the --port option to bind to a different port.
Middleware
You can also use PostGraphile as native HTTP, Connect, Express, or Koa (experimental) middleware, e.g.:
- ``` sh
- yarn add postgraphile
- ```
- ``` js
- import { createServer } from 'http';
- import postgraphile from 'postgraphile';
- createServer(postgraphile());
- ```
Check out hapi-postgraphile if you're interested in using PostGraphile as a hapi server plugin.
Docker
To run via Docker, simply pass the CLI options to the Docker container:
- ``` sh
- docker pull graphile/postgraphile
- docker run --init graphile/postgraphile --help
- ```
E.g. you might run this command (substituting the relevant variables):
- ``` sh
- docker run --init -p 5000:5000 graphile/postgraphile --connection postgres://POSTGRES_USER:POSTGRES_PASSWORD@POSTGRES_HOST:POSTGRES_PORT/POSTGRES_DATABASE --schema app_public --watch
- ```
macOS users: Please use a different port to avoid conflict with AirPlay.
Read More
Full documentation for PostGraphile is located at graphile.org/postgraphile.
PostGraphile features include:
- Authorization (security) provided by PostgreSQL:
- [row-level security (RLS)][row-level-security]
- [PostgreSQL procedure support][procedure documentation]:
- [Custom queries][advanced queries documentation]
- Development UI (GraphiQL) built in
- --watch mode, auto-detects changes in SQL schema, hot-reloads changes into GraphiQL
- [Automatic documentation, enhanced by PostgreSQL COMMENTs](http://www.postgresql.org/docs/current/static/sql-comment.html)
- Global object identifiers (nodeId by default, but Relay-favoured id with --classic-ids)
- Relay-compatible mutations
[procedure documentation]: https://www.graphile.org/postgraphile/procedures/
[advanced queries documentation]: https://www.graphile.org/postgraphile/custom-queries/
[row-level-security]: http://www.postgresql.org/docs/current/static/ddl-rowsecurity.html
Requirements
Full requirements are on the website, but a basic summary is:
- Node v8.6+
- PostgreSQL 9.6+ (officially; but currently works with 9.4+)
- Linux, macOS or Windows
Caveats:
- PostGraphile does not have automated tests on Windows, if you notice any
issues please file them (or send a PR!)
Supporting PostGraphile
The fastest and easiest way you can help PostGraphile thrive is by [sponsoring
ongoing development and maintenance](https://graphile.org/sponsor/).
Want to help testing and developing PostGraphile? Check out the [contributing
document](CONTRIBUTING.md) to get started quickly!
Commercial support, consultancy and development services are available direct
from the maintainer; see Professional Services
for more information, or get in touch!
The maintainer of this project is @Benjie -
follow him on Twitter!
Thanks
Huge thanks to [the individuals and companies who sponsor PostGraphile's
development](SPONSORS.md) - their financial contributions enable more time to
be spent on the project: from bug fixes, to code review, to new features! If
you want to help the project advance more rapidly, please join them in
A humongous, heart-felt, thank you to the original author of PostGraphile -
Caleb Meredith - for everything he put into
PostGraphile! He's now graduated from the project and we all wish him the best
for his future ventures!
Thanks also to the people working on
PostgREST which was a huge inspiration
for this project!
Thanks and enjoy 👍
