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Home/ Questions/Q 7901839
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Editorial Team
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Editorial Team
Asked: June 3, 20262026-06-03T09:20:12+00:00 2026-06-03T09:20:12+00:00

Iam new to use protobuf. Am using protobuf library in Linux-C. Is there any

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Iam new to use protobuf. Am using protobuf library in Linux-C.

Is there any example for setting optional and required string to my message?

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  1. Editorial Team
    Editorial Team
    2026-06-03T09:20:15+00:00Added an answer on June 3, 2026 at 9:20 am

    The protobuf front page has an example of a .proto-file containing:

    required string name = 2;
    optional string email = 3;
    

    So that doesn’t seem to be very complicated. There doesn’t seem to be an “official” C API on those pages, and you didn’t provide a link to the one you’re using so it’s hard to say more.

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