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Ballerina OAuth2 Library

This library provides a framework for interacting with OAuth2 authorization servers as specified in the RFC 6749 and RFC 7662.

The OAuth 2.0 authorization framework enables a third-party application to obtain limited access to an HTTP service either on behalf of a resource owner by orchestrating an approval interaction between the resource owner and the HTTP service or by allowing the third-party application to obtain access on its own behalf.

The Ballerina oauth2 library facilitates auth providers that are to be used by the clients and listeners of different protocol connectors.

Listener OAuth2 provider

Represents the listener OAuth2 provider, which is used to validate the received credential (access token) by calling the configured OAuth2 introspection endpoint.

Client OAuth2 provider

Represents the client OAuth2 provider, which is used to generate OAuth2 access tokens using the configured OAuth2 token endpoint configurations. This supports the client credentials grant type, password grant type, and refresh token grant type.

Issues and projects

Issues and Projects tabs are disabled for this repository as this is part of the Ballerina Standard Library. To report bugs, request new features, start new discussions, view project boards, etc., go to the Ballerina Standard Library parent repository.

This repository only contains the source code for the module.

Build from the source

Set up the prerequisites

Download and install Java SE Development Kit (JDK) version 21 (from one of the following locations).
- Oracle
- OpenJDK
  
  Note: Set the JAVA_HOME environment variable to the path name of the directory into which you installed JDK.
Export your GitHub Personal Access Token (PAT) with the 'read package' permission as follows:
```
export packageUser=<Username>
export packagePAT=<Personal Access Token>
```
Download and install Docker.

Build the source

Execute the commands below to build from the source.

To build the package:
```
./gradlew clean build
```
To run the tests:
```
./gradlew clean test
```

To run a group of tests

./gradlew clean test -Pgroups=<test_group_names>

To build the without the tests:
```
./gradlew clean build -x test
```
To debug package implementation:
```
./gradlew clean build -Pdebug=<port>
```

To debug with Ballerina language:

./gradlew clean build -PbalJavaDebug=<port>

Publish the generated artifacts to the local Ballerina central repository:
```
./gradlew clean build -PpublishToLocalCentral=true
```
Publish the generated artifacts to the Ballerina central repository:
```
./gradlew clean build -PpublishToCentral=true
```

Contribute to Ballerina

As an open source project, Ballerina welcomes contributions from the community.

For more information, go to the contribution guidelines.

Code of conduct

All contributors are encouraged to read the Ballerina Code of Conduct.

Useful links

For more information go to the oauth2 library.
For example demonstrations of the usage, go to Ballerina By Examples.
Chat live with us via our Discord server.
Post all technical questions on Stack Overflow with the #ballerina tag.