codesnips

json

go 
package api

import (
  "encoding/json"
  "errors"
  "io"

Streaming JSON decoding with DisallowUnknownFields

go http json
by Leah Thompson 1 tab
ruby 
class JsonLogFormatter < ActiveSupport::Logger::SimpleFormatter
  def call(severity, timestamp, _progname, message)
    if message.is_a?(Hash)
      entry = {
        ts: timestamp.utc.iso8601(3),
        level: severity

Lograge-Style JSON Logging Without Extra Gems

rails logging observability
by codesnips 3 tabs
go 
package types

import (
  "bytes"
  "encoding/json"
  "time"

Strict JSON time parsing with custom UnmarshalJSON

go json time
by Leah Thompson 1 tab
go 
package api

import (
  "encoding/json"
  "errors"
  "io"

Strict JSON decode helper (size limit + unknown fields)

go http json
by Leah Thompson 1 tab
go 
package api

import (
  "net/http"
  "strings"
)

Enforce JSON Content-Type and method early in handlers

go http api
by Leah Thompson 1 tab
ruby 
class Contract
  INVALID = Object.new.freeze

  COERCERS = {
    string: ->(v) { v.is_a?(String) ? v : v.to_s },
    integer: ->(v) { Integer(v.to_s) rescue INVALID },

Validated JSON Schema with dry-validation-style contract (lightweight)

api validation contracts
by codesnips 4 tabs
php 
<?php

namespace App\ValueObjects;

final readonly class NotificationSettings
{

Cast a JSON Column to an Immutable Value Object with a Custom Eloquent Cast in Laravel

laravel eloquent value-object
by codesnips 3 tabs
go 
package api

import (
  "encoding/json"
  "net/http"
)

WriteJSON helper with consistent headers and status

go http json
by Leah Thompson 1 tab
javascript 
const { Pool } = require('pg');
const Cursor = require('pg-cursor');

const pool = new Pool();

async function* streamUsers({ since, batchSize = 500 }) {

Stream a Large JSON Array Response in Node.js Without Buffering

nodejs streams transform-stream
by codesnips 3 tabs
python 
from typing import Optional
from pydantic import BaseModel, EmailStr, Field, field_validator, model_validator


class CreateUserRequest(BaseModel):
    model_config = {"extra": "forbid"}

Validating JSON Payloads with Pydantic v2 and Returning Field-Level Errors in FastAPI

fastapi pydantic validation
by codesnips 3 tabs
go 
package httpstream

import (
	"bufio"
	"database/sql"
	"fmt"

Streaming Large SQL Query Results as a JSON Array in Go

go database sql
by codesnips 2 tabs
go 
package events

import "encoding/json"

type Envelope struct {
  Type    string          `json:"type"`

Store unstructured JSON safely with json.RawMessage

go json events
by Leah Thompson 1 tab