Add cipher preference option in builder #659
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bretambrose
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Sep 24, 2025
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bretambrose
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Do we want cipher suite on the static builder functions or as a separate API?
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Python SDK static builder function directly return a mqtt5 client / mqtt3 connection. We don't really have a way to add a separate API for builder. |
xiazhvera
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sfod
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Nov 21, 2025
awsiot/mqtt_connection_builder.py
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| if port == 443 and awscrt.io.is_alpn_available() and use_custom_authorizer is False: | ||
| tls_ctx_options.alpn_list = ['http/1.1'] if use_websockets else ['x-amzn-mqtt-ca'] | ||
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| if cipher_pref != awscrt.io.TlsCipherPref.DEFAULT: |
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mqtt5 builder has a check for None. Should it be the same here?
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Nice catch. Instead, added validation assert isinstance(cipher_pref, awscrt.io.TlsCipherPref) instead.
sfod
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Nov 24, 2025
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