Project integrate-consolidate-integrations-behind-one-module · revised 11 October 2026
Project
Move up to four scattered third-party integrations behind one internal module
Calls to up to four outside services move into one module with one place for credentials, timeouts, retries and logs, test fakes for each, and the app behaving as before.
This asks for a proposal by email. Nothing is charged, and nothing starts, until you have agreed the services, the price and the terms in writing.
The result you are buying
When each integration is called straight from wherever it is needed, every service has its own way of loading keys, timing out, retrying and logging. A change at a provider touches many files, tests need the live service, a retry policy exists in one place and not another, and nobody can list which parts of the app depend on which provider. The project removes that sprawl for a bounded set of services.
Who it’s for: A founder or engineering lead whose codebase calls several outside services (email, payments, maps, chat, a CRM) from many files, each with its own keys, timeouts and error handling, and whose team is afraid to touch any of them.
Usually starts when: An outage or a rate limit at one provider showed how many places call it, a key rotation needed code changes in several files, or tests need real network access because nothing can be replaced with a fake.
The result: You buy the finished consolidation, not the individual edits. For up to four named services, every call in the codebase goes through one internal module, the app behaves as it did before as shown by tests written first, each service has a fake so the suite runs without network access, and an automated check stops new direct calls from appearing.
How the work fits together
The project is complete when every agreed service is behind the module, the characterisation tests pass on the old and new code, and you have accepted the final summary. You accept the finished consolidation, not each internal step.
Make one API client survive rate limits and outages without duplicates or retry storms Job Included
One named API client in your code waits as the provider asks, backs off with spread-out retries, stops at a budget and never repeats a write that may already have happened.
The agreed retry policy applied once, in the shared module
The module's retry rules are this outcome applied across the services; the same job can be bought for one client alone.
Keep up to three third-party integrations healthy: credentials, quotas and deprecations Standing service Optional
Each month we check your named integrations for expiring credentials, quota use and announced provider changes, fix what sits in your code and tell you what only you can renew.
After consolidation, the register of services and credentials is the starting point for the monthly health service.
How an engagement works
The price covers the agreed four services only. A fifth service or a changed policy is quoted separately.
How it starts
You send a list of the services your code calls and which four matter most.
We read the codebase and the tests, draw up the inventory and propose the four services, the retry policy and a fixed price.
You agree the list, price and terms in writing. Nothing starts before then.
We write the characterisation tests, build the module and move one service at a time, sending a pull request for each for you to accept.
We send the final summary and hand over the guide and anything left open.
Who decides what
You decide the services and the retry policy and accept each service's move. Your team merges and deploys on its own gates.
Handover
Each service arrives as a pull request with its tests. Anything unfinished is handed back with notes.
Sharing your product safely. Send a list of services, never keys or customer data. After you agree the project, invite us to a repository or fork you control and send run instructions and test credentials or sandboxes.
What is included, and what is not
- Pull requests moving each service behind the module, each with its tests
- The inventory of services, calls and credentials, before and after
- A fake for each service and the module's contract tests
- A short guide for adding a fifth service, and a final summary of what moved
Included
- Up to four named third-party services in one codebase, chosen from a short inventory we draw up with you
- Characterisation tests written first that record how the app uses each service and handles agreed responses, run on the old code and then on the new
- One module with a single way to load credentials from configuration, set timeouts, apply the agreed retry policy, redact and log each call, and replace the service with a fake
- Moving every call to the module, without changing what the app does for users
- An automated rule that fails the build when new code outside the module calls a listed provider directly
Not included
- Adding features, changing what the app does or redesigning workflows
- Replacing a provider with another one
- Migrating to a new framework or language
- More than four services, or services not on the agreed inventory
- Rotating or issuing any credential, which stays with you
- Production deployment, monitoring set-up or quota negotiation
How we know it’s done
Agreed with you before work starts. Each check produces evidence you keep.
The characterisation tests for each of the four services pass on the original code and, unchanged, on the code after the service is moved behind the module.
Evidence: Test output for both revisions, side by side.
A deliberate direct call to a listed provider from outside the module fails the automated rule, and after it is removed the rule passes.
Evidence: CI output for the failing and passing runs.
The full test suite runs with network access blocked and uses the module's fakes for the four services.
Evidence: Test output with the network block in place.
A search of the codebase finds no credential in code, and replacing a staging credential in configuration alone changes which account a service uses, with no code change.
Evidence: Search results and a staging run before and after the configuration change.
Sign-off. You accept each service's move, or send it back with comments, and then you accept the finished consolidation.
If it fails. A service we cannot move safely is named with the reason and what it would take, and is taken off the list with a matching change to the price. Nothing is billed as delivered that you have not accepted.
When it fits, and when we stop
It fits when
- The code is in a repository we can read through a company-controlled route, and builds and tests run locally or in CI without production credentials
- A reasonable test suite exists or you accept that characterisation tests for the four services will be the main safety net
- A person on your side can accept changes and answer questions about how each service is used
- You can agree the four services and the retry policy in writing before work starts
We stop and tell you if
- The calls cannot be exercised without production credentials we would have to hold
- The inventory shows far more than four services or calls spread through generated code, so we propose a different scope
- The app cannot be run at all in a test setup
- Nobody on your side can accept changes
What could go wrong
Each service is a separate pull request that your team merges, so any one can be reverted on its own. If the project stops, accepted services stay accepted and the rest is handed back with notes.
Scroll the table sideways to read it all.
| Risk | How we handle it |
|---|---|
| The refactor changes behaviour users rely on. | Characterisation tests are written first, run on the old code and run unchanged on the new, so a difference is visible before you see the change. |
| A call is missed and still goes straight to the provider. | An inventory is drawn up first, and an automated rule fails the build on a direct call, proved on a deliberate violation. |
| The retry policy repeats a write. | Writes retry only with the provider's documented idempotency mechanism or an approved duplicate check, tested with the fake. |
Each change is reviewed separately from the work that produced it, and you accept every service's move. No human supervisor is included unless your proposal names one. At launch the work is largely automated, and we say so.
Stays with a person
- You accept each service's move
- You merge and deploy on your own gates
Access we would need
- Read access to a repository or fork you control; no production access
Questions
Will the app behave differently afterwards?
No change in behaviour is intended. Tests that record the current behaviour are written first and must pass unchanged on the new code.
What if we have six services?
The price covers four. The inventory ranks the six and the most valuable four go first; the rest are quoted separately.
Do you replace our providers?
No. The same providers are called through one module. Switching providers is a separate decision.
How is this different from fixing one API client?
That fixes one client's retry policy. This moves several services behind a shared module so the policy, keys, logs and fakes exist once.
Send an enquiry
Send us
- A list of the outside services your code calls and roughly where
- The language, framework and test tools
- Which four matter most, in order
- Do not send keys, customer data or code in the first enquiry
Later, once you agree
- Read access to a repository or fork you control, with no production access
- Run instructions, and test credentials or sandbox accounts where a service has one
- Your decisions on the retry policy and the four services
- A named person to accept each service's move
Your repository, services and credentials stay yours. We work on branches or a fork you control and return pull requests. Production keys never leave your secret store.
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