Code Explainers

Code explainers tagged #schema

python 
from flask import Blueprint, jsonify
from marshmallow import Schema, fields, validate, EXCLUDE
from webargs.flaskparser import use_args
 

Validating query params in Flask with webargs

validation schema query-building
Intermediate 10 steps
python 
from flask import Blueprint, request, jsonify
from marshmallow import Schema, fields, validate, ValidationError, EXCLUDE
 
from .models import db, User

How a Flask blueprint validates and creates users

validation rest-api schema
Intermediate 8 steps
ruby 
class ParamCoercer
  TYPES = {
    integer: ->(v) { Integer(v) },
    float:   ->(v) { Float(v) },

Coercing request params by schema in Ruby

lambdas type-coercion lookup-table
Intermediate 7 steps
typescript 
import { z } from "zod";
 
const ProductQuerySchema = z.object({
  page: z.coerce.number().int().positive().default(1),

Validating URL query params with Zod

validation schema type-inference
Intermediate 8 steps