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GraphQL Development · Cardiff

GraphQL Development in Cardiff

Building GraphQL APIs for Cardiff organisations, where the resolver model creates a performance trap that has nothing to do with the query language. Asking for fifty articles and each author issues fifty-one database queries by default — because each resolver runs independently and none of them knows the others are asking for something similar.

Why this comes up

The problem

One query returns quickly in testing and issues several hundred database queries against production data volumes.

What you get

What we deliver

  • Batching implemented so related lookups become one query rather than many
  • Query depth and complexity limited, since clients can otherwise request anything
  • Authorisation applied per field, because the schema exposes them individually
  • Errors returned in a way clients can act on rather than as a generic failure
  • Schema evolved by deprecation rather than by breaking existing consumers
  • Query performance monitored per operation, not as an aggregate for one endpoint

Want this scoped for your business in Cardiff?

Thirty minutes, no charge, no sales script. You leave with a written summary of what graphql development would actually involve — whether or not you use us.

Book a 30-minute call

Working in Cardiff

Wales

Cardiff has a significant broadcast and media sector alongside a large public-sector presence, and Welsh-language provision is a genuine requirement on public-facing work here rather than a nice-to-have.

Public sector and broadcast work is common, and bilingual provision is usually a requirement rather than an option.

Sectors we work with in Cardiff

  • Media & Broadcasting
  • Financial Services
  • Public Sector
  • Higher Education
  • Sport

What we work with

Technologies and platforms

  • GraphQL
  • TypeScript
  • Apollo
  • PostgreSQL

Who we work with

Industries we serve

  • SaaS businesses
  • Retail
  • Media companies
  • Financial services
  • Technology companies

Why us

Why Cardiff businesses choose Asionis

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

How we work

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

GraphQL Development in Cardiff — common questions

Why does the query count explode?
Because each field resolves on its own. A list of items each needing a related record produces one query per item, and the framework has no way to know they could be fetched together unless you batch them deliberately.
How do we stop clients requesting too much?
Limit depth and complexity, and cost queries before running them. A flexible query language means a client can construct something expensive by accident, and without limits your API's load is determined by whoever is calling it.
Where does authorisation belong?
At the field level. A single query can traverse from an object a user may see to one they may not, so checking access at the entry point is insufficient — each field that exposes protected data has to make its own decision.
How should the schema change over time?
By adding and deprecating rather than removing. Clients hold their own queries, so a removed field breaks them without warning — deprecation lets you see who is still using something before it disappears.
Do you work with businesses across Cardiff?
Yes. We are based in Leicester, United Kingdom and work with clients throughout Wales, including Cardiff and the surrounding Cardiff area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Cardiff businesses do you usually work with?
Public sector and broadcast work is common, and bilingual provision is usually a requirement rather than an option. Beyond that we work across Media & Broadcasting, Financial Services, Public Sector, Higher Education and Sport.
Do you cover the areas around Cardiff?
Yes — we work throughout Wales, including Bristol, Swansea. Cardiff is an urban area of roughly 490,000+, and we take on work across the wider Cardiff region rather than the city boundary alone.

Talk to us about GraphQL Development in Cardiff

A 30-minute call with someone who would actually work on it. No sales script, no obligation.

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom