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cap'n proto

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Anjali Sharma answered on January 12, 2023 Popularity 6/10 Helpfulness 5/10

answer cap'n proto

cap'n proto

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Cap’n Proto is an insanely fast data interchange format and capability-based RPC system.

Think JSON, except binary.

Or think Protocol Buffers, except faster.

In fact, in benchmarks, Cap’n Proto is INFINITY TIMES faster than Protocol Buffers.

using Cxx = import "/capnp/c++.capnp";
$Cxx.namespace("addressbook");

using Java = import "/capnp/java.capnp";
$Java.package("org.capnproto.examples");
$Java.outerClassname("Addressbook");

struct Person {
  id @0 :UInt32;
  name @1 :Text;
  email @2 :Text;
  phones @3 :List(PhoneNumber);

  struct PhoneNumber {
    number @0 :Text;
    type @1 :Type;

    enum Type {
      mobile @0;
      home @1;
      work @2;
    }
  }

  employment :union {
    unemployed @4 :Void;
    employer @5 :Text;
    school @6 :Text;
    selfEmployed @7 :Void;
    # We assume that a person is only one of these.
  }
}

struct AddressBook {
  people @0 :List(Person);

https://github.com/capnproto/capnproto-java/blob/master/examples/src/main/schema/addressbook.capnp

Popularity 6/10 Helpfulness 5/10 Language cpp

Source: Grepper

Tags: c++ proto

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Contributed on Jan 12 2023

Anjali Sharma

0 Answers Avg Quality 2/10

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