Add oauth2 examples for repo

[wolfstudy]

Signed-off-by: xiaolong.ran [email protected]

Add oauth2 examples for repo

[sijie]

@jennifer88huang @Huanli-Meng Can you please review this pull request?

[Jennifer88huang-zz]

sure.

[Huanli-Meng]

leave my comments, PTAL.

[wolfstudy]

@Huanli-Meng PTAL again thanks

[Huanli-Meng]

Just one minor comment.

[Jennifer88huang-zz]

When you @wolfstudy finish other part, feel free to ping us.

[jiazhai]

@wolfstudy Please provide more detailed examples as other projects, not only connections.

[wolfstudy]

Currently, the oauth2 examples of Go and Java are done, and cpp client example is providing.

@jiazhai @Huanli-Meng PTAL thanks

[Huanli-Meng]

Leave my comments, PTAL.

Based on my understanding, I think the code example should include these parts:
1: authenticate the client use the Oauth ot token (./bin/snctl auth export-service-account instance-name -n namespace-name)(./bin/snctl auth get-token instance-name -n namespace-name).
2: set the token or authentication options based on the obtained Json file or token.
3: create a client.
4: create a client producer to send messages.
5: create a client consumer to receive messages.

In addition to Pulsar clients, such as Java, go, cpp, you need to provide more example for python, node.js, websocket, and C#. and also pulsar CLI tools, such as pulsar-admin, pulsar-perf, pulsar-client, pulsarctl.

[Huanli-Meng]

as i learned, this is not about TLS transport. it should use the token generated by snctl auth get-token. please help confirm with guangning.

[jiazhai]

Please make the names aligned:
Publish/Receive
SampleConsumer/SampleProducer
Consumer/Producer

[wolfstudy]

@jiazhai @Huanli-Meng comments have been fixed, PTAL done

[wolfstudy]

In addition to Pulsar clients, such as Java, go, cpp, you need to provide more example for python, node.js, websocket, and C#. and also pulsar CLI tools, such as pulsar-admin, pulsar-perf, pulsar-client, pulsarctl.

@Huanli-Meng Yes, we can add other languages client in the next pull request. This pr will mainly track go, CPP and Java client. Will track the task in #22

[wolfstudy]

Based on my understanding, I think the code example should include these parts:
1: authenticate the client use the Oauth ot token (./bin/snctl auth export-service-account instance-name -n namespace-name)(./bin/snctl auth get-token instance-name -n namespace-name).
2: set the token or authentication options based on the obtained Json file or token.
3: create a client.
4: create a client producer to send messages.
5: create a client consumer to receive messages.

Cool @Huanli-Meng This logic is correct, in [How to get OAuth2 options], we introduced how to get the specified options.

[Huanli-Meng]

LGTM