apache/fory

[Question] Does Apache Fory support field validation inside *.fdl?

Ouverte

#3 904 ouverte le 31 juil. 2026

 (1 commentaire) (0 réaction) (0 personne assignée)Java (426 forks)auto 404
good first issuequestion

Métriques du dépôt

Stars
 (4 419 étoiles)
Métriques de merge PR
 (Métriques PR en attente)

Description

Question

Hi.

Does Apache Fory support field validation inside *.fdl , similar to Protobuf tools (Protovalidate (CEL)/protoc-gen-validate (PGV))

https://fory.apache.org/docs/compiler/protobuf_idl_support/

syntax = "proto3";

package v1.user;

import "buf/validate/validate.proto";

message UserProfile {
  string id = 1 [(buf.validate.field).string.uuid = true];

  // Numeric boundaries
  uint32 age = 2 [(buf.validate.field).uint32.gte = 18, (buf.validate.field).uint32.lte = 120];

  string email = 3 [(buf.validate.field).string.email = true];

  // Length constraints and regex pattern matching
  string username = 4 [
    (buf.validate.field).string.min_len = 3,
    (buf.validate.field).string.max_len = 30,
    (buf.validate.field).string.pattern = "^[a-zA-Z0-9_]+$"
  ];

  // Collection constraint (ensure list contains at least one item)
  repeated string roles = 5 [(buf.validate.field).repeated.min_items = 1];

  // Standard rules handle simple single-field checks.
  uint64 amount = 6 [(buf.validate.field).uint64.gt = 0];
  uint64 balance = 7;

  // CEL produces a dynamic error message with runtime values.
  option (buf.validate.message).cel = {
    id: "transfer.sufficient_balance"
    expression:
      "this.amount <= this.balance ? ''"
      ": 'cannot transfer ' + string(this.amount)"
      "  + ' with a balance of ' + string(this.balance)"
  };
}

Guide contributeur