How do I decode to a struct using Protobuf with Swift?

To decode a Protobuf message into a Swift struct, you typically need to ensure that you have the appropriate Protobuf generated Swift files. Here’s a simple guide along with an example:

Keywords: Swift, Protobuf, struct, decoding, tutorial

Description: This tutorial provides an example of how to decode a Protobuf message into a Swift struct using the Protobuf library.

Step-by-Step Example

Assuming you have a Protobuf definition like this:


    syntax = "proto3";

    message Person {
        string name = 1;
        int32 id = 2;
        string email = 3;
    }

After generating the Swift files using the Protobuf compiler, you can decode a Protobuf message into a Swift struct as follows:


    import Foundation
    import SwiftProtobuf

    struct Person: Message {
        var name: String = ""
        var id: Int32 = 0
        var email: String = ""
    }

    func decodePerson(from data: Data) -> Person? {
        do {
            let person = try Person(serializedData: data)
            return person
        } catch {
            print("Error decoding person: \(error)")
            return nil
        }
    }

In this example, the decodePerson function takes in a Data object (which should contain the Protobuf encoded bytes) and returns a decoded Person struct.

How do I decode to a struct using Protobuf with Swift?

Step-by-Step Example

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How do I decode to a struct using Protobuf with Swift?

Step-by-Step Example

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