examples/stream_example.py not working about oci-python-sdk

[arthall]

Thank you for bringing this to our attention.

The baseclient doesn't allow bytes in this case, because the API specifies the values as string. https://docs.cloud.oracle.com/iaas/api/#/en/streaming/20180418/datatypes/PutMessagesDetailsEntry

I've tested the following changes in Python 2.7.12, 3.5.1 and 3.7.2 and they work in all three environments.

First, I imported encode and decode from the codecs package.

from codecs import encode, decode

Then changed the encoding of the key and message to

        encoded_key = encode(key.encode(), "base-64").decode().strip()
        encoded_value = encode(value.encode(), "base-64").decode().strip()

and changed the reading of the messages to

        for message in get_response.data:
            print("{}: {}".format(decode(message.key.encode(), "base64").decode(),
                                  decode(message.value.encode(), "base64").decode()))

Not related encodings, but also updated the line where the stream is deleted.

client.delete_stream_and_wait_for_state(stream_id, wait_for_states=[oci.streaming.models.StreamSummary.LIFECYCLE_STATE_DELETED])

Some of the encoding and decoding isn't required, but it keeps the results consistent between Python 2 and Python 3. I haven't tried to use unicode in my test, and there may be more steps required in that case. I'll update the example for the next release.

[miles182]

Thanks for the fast response I really appreciate it. I just changed the example using codecs package, that indeed works.

[arthall]

The example has been updated with the latest release. Thanks again @miles182 for pointing out the issue.

[arthall]

The solution presented here introduces a bug if the key or value is too long. See #147.