Reference library

API design & gRPC

REST best practices, protobuf, API versioning, and backward-compatible service contracts.

4 matches
API design & gRPC easy

Convert Protobuf to JSON and Dict in Python

Provides static helper methods to convert between protobuf messages, JSON strings, and Python dictionaries using the google.protobuf library.

protobuf json grpc
Python 
from google.protobuf.json_format import MessageToJson, Parse
import json


class DataConverter:
    """Helper class to convert between protobuf messages and common formats."""

    @staticmethod
    def to_json(message, indent=2):
        """Convert a protobuf message to JSON string."""
        return MessageToJson(me…
18 0 Open
API design & gRPC easy

Create a Data Helper in Python for gRPC-style APIs

This code builds a simple DataHelper class that mimics gRPC request/response handling with in-memory storage, JSON serialization, and basic CRUD operations for beginners.

dataclasses grpc api-design
Python 
import json
from dataclasses import dataclass, asdict
from typing import Dict, Any


@dataclass
class User:
    user_id: int
    name: str
    email: str


class DataHelper:
    """Simple helper to demonstrate gRPC-like data handling for beginners."""

    def __init__(self) -> None:
        self._users: Dict[int, Use…
15 0 Open
API design & gRPC easy

Format data in Python using dataclasses like gRPC messages

Convert Python dataclasses to and from dicts and format them gRPC-style for clean data handling.

dataclasses grpc serialization
Python 
from dataclasses import dataclass
from typing import Any, Dict, List, Optional


@dataclass
class ProductInfo:
    """Data class representing a gRPC-style product message."""

    name: str
    price: float
    tags: List[str]
    description: Optional[str] = None

    def to_dict(self) -> Dict[str, Any]:
        """C…
14 0 Open
API design & gRPC easy

How to Serialize a Dataclass to JSON in Python

Serialize a Python dataclass instance to JSON using asdict and json.dumps for API responses or mocks.

dataclass json serialization
Python 
from dataclasses import dataclass, asdict
import json


@dataclass
class UserResponse:
    id: int
    name: str
    email: str
    active: bool = True


if __name__ == "__main__":
    response = UserResponse(id=42, name="Ada Lovelace", email="ada@example.com")
    print(json.dumps(asdict(response), indent=2))
13 0 Open

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API design & gRPC — Python code examples

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