标签：#graphql

How to version REST endpoints, evolve GraphQL schemas, and ship mobile updates — without leaving existing users behind. Why It Matters Every deployed API is a contract. Every mobile binary installed on a user's phone is a snapshot of that contract. The moment you change a response shape, rename a field, or remove an endpoint, you risk breaking clients you cannot force-update. Backward compatibility is not about avoiding change. It is about managing change so that existing consumers continue to work while the system evolves underneath them. This article covers three layers: REST API versioning , GraphQL schema evolution , and mobile app compatibility (React Native & Flutter). Each section delivers concrete patterns and production-ready code. Part I — REST APIs The Versioning Decision REST APIs have four common versioning strategies. Each comes with tradeoffs: Strategy Example Pros Cons URI path /api/v1/users Simple, cacheable, widely understood Implies the resource itself changed; cache duplication Query parameter /api/users?version=1 Easy to implement, can default to latest Complicates routing and cache keys Custom header X-API-Version: 1 Keeps URIs clean Hard to test in browsers, invisible in logs Content negotiation Accept: application/vnd.app.v2+json Fine-grained, per-resource versioning Complex to test, requires custom media types Rule of thumb: Use URI versioning for public APIs. Use header-based versioning for internal services where you control all clients. Non-Breaking vs. Breaking Changes Not every change requires a new version: ✅ Non-breaking (no version bump needed): - Adding a new field to a response - Adding a new optional query parameter - Adding a new endpoint - Returning a new enum value (if clients handle unknowns) ❌ Breaking (requires a new version): - Removing or renaming a field - Changing a field's type (string → number) - Making an optional parameter required - Changing the response structure Pattern: Side-by-Side Versioning When a breaking cha

I just shipped 5 new tools to DevNestio — a hub of 172 free, browser-only developer utilities. All tools are zero-signup, zero-upload, and work offline. 1. GraphQL Query Formatter & Minifier https://devnestio.pages.dev/graphql-formatter/ Paste any GraphQL operation and get: Pretty-print — consistent indentation Minify — strips comments and whitespace for smaller request payloads Validation — brace/parenthesis balance check Operation detection — lists all named query , mutation , subscription , fragment Useful for quick query cleanup before pasting into code reviews or API docs. 2. Protobuf (.proto) Formatter & Validator https://devnestio.pages.dev/protobuf-formatter/ Online formatter and validator for Protocol Buffer .proto files: Duplicate field number detection Message and enum structure validation Syntax-highlighted output One-click copy Great for a sanity check before pushing .proto changes in a gRPC service. 3. Docker Compose Validator https://devnestio.pages.dev/docker-compose-validator/ Paste your docker-compose.yml to catch: Missing services section Services without image or build Invalid port mappings ( 80:80 , 127.0.0.1:8080:80 , 53:53/udp , ranges…) depends_on referencing non-existent services Circular dependency detection (A→B→A) Unknown restart policies # This will flag errors: services : web : ports : - " abc:xyz" # invalid port depends_on : - missing_service # unknown service 4. Dockerfile Analyzer & Linter https://devnestio.pages.dev/dockerfile-analyzer/ Analyzes your Dockerfile for best practice violations across three categories: Security sudo usage inside RUN Container running as root (no USER instruction) Secrets baked into ENV / ARG (password, secret, token, key) Image size :latest base image tag apt-get update in a separate RUN (stale cache risk) apt-get install without --no-install-recommends apt cache not cleaned ( rm -rf /var/lib/apt/lists/* ) ADD used for local files instead of COPY Layer optimization Consecutive RUN instructions (suggest c

GraphQL: A Complete Guide for Developers in 2026 NEWS: MY GAME JUST LAUNCHED Flip Duel Card Battle - Apps on Google Play Outsmart rivals in 1v1 card duels. Joker, bluff, ranked PvP. 5 rounds. play.google.com If you have built more than a couple of APIs, you have probably felt the friction of REST at scale. You ship an endpoint, the frontend team asks for one more field, you version the route, the mobile team needs a different shape of the same data, and six months later you are maintaining /v3/users/:id/full next to /v2/users/:id/summary and nobody remembers which one the Android app actually calls. GraphQL was built to kill that exact pain. It is a query language and runtime that lets clients ask for precisely the data they need — no more, no less — from a single endpoint, against a strongly typed schema that doubles as living documentation. This guide walks through GraphQL from first principles to production concerns. It is aimed at working developers, so expect schema definitions, resolvers, real queries, the N+1 problem, federation, security, and the parts of the ecosystem that actually matter in 2026. By the end you should be able to decide whether GraphQL belongs in your stack and how to build it without shooting yourself in the foot. What GraphQL Actually Is GraphQL is a specification, not a library or a framework. It was created at Facebook in 2012 to power their mobile apps, open-sourced in 2015, and is now governed by the GraphQL Foundation under the Linux Foundation. The spec defines a query language, a type system, and an execution model — but it deliberately says nothing about which database you use, which programming language you implement it in, or how you transport requests over the wire. That last point trips people up, so let it sink in: GraphQL is transport-agnostic and storage-agnostic. Most implementations run over HTTP with JSON, but that is a convention, not a requirement. Your resolvers can pull data from PostgreSQL, a REST microservice, a gR

When you build Shopify apps or integrations, pagination becomes important very quickly. A small test store may have a few products and orders. A real merchant store can have thousands of products, variants, orders, customers, inventory items, metafields, and fulfillment records. You cannot fetch all of that data in one Shopify GraphQL request. You need pagination. More importantly, you need pagination that performs well. Poor Shopify GraphQL pagination can create slow syncs, API throttling, timeout errors, duplicate processing, and incomplete exports. This post explains how Shopify GraphQL pagination works and how to handle large Shopify datasets in a practical way. What Shopify GraphQL Pagination Solves Pagination lets your app retrieve data in smaller chunks. Instead of asking Shopify for 50,000 products at once, your app asks for 100 or 250 products per request. Shopify returns the data and gives your app information about the next page. This protects your app from huge responses and protects Shopify from heavy requests. It also gives your integration more control over retries, progress tracking, and background processing. Shopify Uses Cursor-Based Pagination Shopify GraphQL uses cursor-based pagination. That means you do not request data using page numbers. You request the next page using a cursor from the previous response. A basic product pagination query looks like this: query GetProducts ( $cursor : String ) { products ( first : 100 , after : $cursor ) { nodes { id title handle updatedAt } pageInfo { hasNextPage endCursor } } } The first time you run this query, pass cursor as null. Shopify returns the first 100 products and gives you an endCursor . Use that endCursor as the after value in the next request. Keep doing this until hasNextPage is false. Why Cursors Work Better Than Page Numbers Offset pagination usually works like this: page=1 page=2 page=3 or: offset=5000&limit=100 This approach becomes inefficient when datasets grow. The system may need to sk

You've been building REST APIs — one endpoint for users, another for posts, another for comments. The client makes three requests, stitches the data together, and half of it gets thrown away because it wasn't needed in the first place. GraphQL was built to fix exactly that. It gives the client full control over what data it receives. One request. Exactly what you asked for. Nothing more, nothing less. The Problem REST Couldn't Solve Before understanding GraphQL, you need to understand the two problems that drove its creation. Over-fetching The server returns more data than the client needs. GET /users/123 Response: { "id": 123, "name": "Anne", "email": "anne@example.com", "phone": "...", "address": "...", "createdAt": "...", ← you didn't need any of this "updatedAt": "..." ← but the server sent it anyway } The client only needed name and email — but it downloaded the whole object every time. Under-fetching One endpoint doesn't return enough, so the client has to make multiple requests. GET /users/123 → gets the user GET /users/123/posts → gets their posts GET /users/123/followers → gets their followers Three round trips to the server just to render one screen. On a mobile network, that cost is real. GraphQL's answer: Let the client write the query. The server returns exactly what was asked. What Is GraphQL? GraphQL is a query language for your API and a runtime for executing those queries. It was created by Facebook in 2012, open-sourced in 2015, and is now maintained by the GraphQL Foundation . Unlike REST, which exposes multiple URL endpoints, GraphQL exposes a single endpoint — typically POST /graphql . The client sends a query in the request body describing exactly what it wants, and the server responds with only that data. Key characteristics: Single endpoint — everything goes through POST /graphql Client-driven — the client defines the shape of the response Strongly typed — every field has a declared type in the schema Introspective — clients can query the API

Shopify introduced GraphQL Cardinal, a new execution engine replacing depth-first traversal with breadth-first execution. The redesign improves large-scale GraphQL performance with up to 15x faster field execution, 6x lower GC overhead, and +4s P50 latency gains. It focuses on execution-layer efficiency and batched resolver processing for high-cardinality commerce queries. By Leela Kumili

Author: Tobie Morgan Hitchcock Three months after 3.0 went GA, we're excited to announce that...