GraphQL Development · Derry
GraphQL Development in Derry
Building GraphQL APIs for Derry 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 Derry?
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.
Working in Derry
Northern Ireland
The city is Derry to most of its population and Londonderry in official use, and which name you lead with is read as a statement here — we use Derry in customer-facing copy and note both where a document has to be formal.
Cross-border trading systems for businesses working into Donegal, and manufacturing tooling for the north west.
Sectors we work with in Derry
- Manufacturing
- Healthcare
- Higher Education
- Digital
- Tourism
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 Derry 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
- Step 1
Free consultation
A 30-minute call to understand the problem. You keep the written summary either way.
- Step 2
Proposal
Scope, timeline and a fixed price, in writing, before anything starts.
- Step 3
Build
Short cycles with regular check-ins, so you see progress rather than hear about it.
- Step 4
Launch and support
We handle the go-live and stay available afterwards.
Other services in Derry
Looking for the full picture? See our GraphQL Development services, everything we do in Derry or browse everything we do.
GraphQL Development in Derry — 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 County Londonderry?
- Yes. We are based in Leicester, United Kingdom and work with clients throughout Northern Ireland, including Derry and the surrounding County Londonderry area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
- What kind of Derry businesses do you usually work with?
- Cross-border trading systems for businesses working into Donegal, and manufacturing tooling for the north west. Beyond that we work across Manufacturing, Healthcare, Higher Education, Digital and Tourism.
- Do you cover the areas around Derry?
- Yes — we work throughout Northern Ireland, including Belfast, Lisburn. Derry is an urban area of roughly 85,000+, and we take on work across the wider County Londonderry region rather than the city boundary alone.
Talk to us about GraphQL Development in Derry
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