How to Assign encoding number to the field inside message

[rohit nv]

I am new to the gRPC and Protobuf. Wanted to know the significance of encoding

number infront of field. In tutorial I saw about the usage of no between 1-15 for frequently used fields as it require 1 byte of encoding and 16 to remaining carries 2 bytes of encoding. May I know when to to use what.

[Marc Gravell]

See https://developers.google.com/protocol-buffers/docs/overview#assigning_field_numbers

Basically:

- positive integers

- unique within each message (can reuse between different messages)

- lower is cheaper

- avoid some reserved ranges

On Tue, 30 Jun 2020, 20:12 rohit nv, <san...@gmail.com> wrote:

I am new to the gRPC and Protobuf. Wanted to know the significance of encoding

number infront of field. In tutorial I saw about the usage of no between 1-15 for frequently used fields as it require 1 byte of encoding and 16 to remaining carries 2 bytes of encoding. May I know when to to use what.

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