codesnips

query-params

typescript 
import { Injectable } from '@angular/core';
import { ActivatedRoute, Params, Router } from '@angular/router';
import { FormGroup } from '@angular/forms';
import { Subscription } from 'rxjs';
import { debounceTime, distinctUntilChanged, map, take } from 'rxjs/operators';

Sync Angular Reactive Form State to URL Query Params With a Route-Aware Service

angular reactive-forms router
by codesnips 3 tabs
typescript 
import { z } from "zod";

const coerceNumber = z.preprocess((v) => {
  if (v === "" || v === undefined) return undefined;
  if (typeof v !== "string") return v;
  const n = Number(v);

API input coercion for query params (Zod preprocess)

typescript validation api
by codesnips 3 tabs
python 
from enum import Enum
from typing import Optional

from fastapi import Query
from pydantic import BaseModel, Field, field_validator

Validate and Normalize Query Filters With a Pydantic Dependency in FastAPI

fastapi pydantic validation
by codesnips 3 tabs