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The Hasura engine is an open source project which supercharges the building of modern applications by providing accessto data via a single, composable, secure API endpoint.

The future of data delivery is GA: Supporting PostgreSQL (and its flavors), MongoDB, ClickHouse, and MS SQL Server. Also supports writing custom business logic using the Typescript, Python, and Go Connector SDKs. Here is the recommendedGetting Started guide on DDN.

The Hasura v3 engine code, which powers Hasura DDN, is in thev3 folder of this repo. You can find more detailedinformation about in thisv3 README.

The Hasura DDN architecture includes Data Connectors to connect to data sources. All Hasura connectors are alsoavailable completely open source. Check out theConnector Hub which lists allavailable connectors.

Hasura V2 is the current stable version of the Hasura GraphQL Engine. Please find moredetailed information about the V2 Hasura Graphql Engine in thev2 folder and thisREADME.

This repository is a large and active mono-repo containing many parts of the Hasura ecosystem and a long githistory, that can make the first time cloning of the repository slow and consume a lot of disk space. We recommendfollowing if you are facing cloning issues.

This will only clone the latest commit and ignore all historical commits.

git clone https://github.com/hasura/graphql-engine.git --depth 1

git clone --no-checkout https://github.com/hasura/graphql-engine.git --depth 1cd graphql-enginegit sparse-checkout init --conegit sparse-checkout set v3git checkout @

This checkouts the top level files and only thev3 folder which contains the Hasura V3 Engine code.

To troubleshoot most issues, check out our documentation and community resources. If you have encountered a bug or needto get in touch with us, you can contact us using one of the following channels:

• Hasura DDN documentation:DDN docs
• Hasura V2 documentation:V2 docs
• Support & feedback:Discord
• Issue & bug tracking:GitHub issues
• Follow product updates:@HasuraHQ
• Talk to us on ourwebsite chat

We are committed to fostering an open and welcoming environment in the community. Please see theCode of Conduct.

If you want to report a security issue, pleaseread this.

Join our communities to stay up to date on announcements, events, product updates, and technical blogs.https://hasura.io/community/

Check out ourcontributing guide for more details.

Hasura brand assets (logos, the Hasura mascot, powered by badges etc.) can be found in thev2/assets/brand folder. Feel free to use them in your application/website etc. We'd be thrilled if youadd the "Powered by Hasura" badge to your applications built using Hasura. ❤️

All theData Connectors are available undertheApache License 2.0.

The coreV3 GraphQL Engine is intended to be licensed under theApache License 2.0 (Apache-2.0).

The V2 core GraphQL Engine is available under theApache License 2.0 (Apache-2.0).

Allother contents in the v2 folder (except those inserver,cli andconsole directories) are available under theMIT License.This includes everything in thedocs andcommunitydirectories.