API ↔ fixture
Call REST, GraphQL, or SOAP and compare the response to a golden fixture after normalization.
Snapline
Declarative snapshot and reconciliation testing.
Declarative snapshot and reconciliation testing for APIs, databases, and async workflows — with an optional Hub for shared test history.
Product
Why Snapline
Integration tests often devolve into brittle field assertions. Snapline flips the model: declare a golden snapshot and reconciliation rules as data. The framework handles HTTP, auth, database queries, deep comparison, and structured diffs. Snapline Hub adds an optional dashboard when your team needs centralized run history.
- API ↔ file, DB ↔ DB, API ↔ DB, and queue → poll comparisons
- REST, GraphQL, and SOAP with OAuth2, OpenID, and Basic auth
- Ignore volatile fields, normalize values, map cross-system codes
- Works with Node.js and Python test runners
- Optional Snapline Hub — dashboard, diffs, and push from CI
Use cases
Compare what actually needs to match
Snapline covers the cross-system checks that brittle assert soup usually fails to maintain.
DB ↔ DB
Query two databases — SQL or document stores — and reconcile rows with structured diffs.
API ↔ DB
Verify an API payload matches a database row, or drive an API call from live data.
Queue → poll
Publish to a message queue, then poll SQL or the filesystem for async results.
Reconciliation
Ignore noise. Map schemas. Diff with paths.
Every comparison runs the same pipeline on live data before deep compare: ignore volatile fields, normalize dynamic values, map cross-system codes, then produce structured field-path diffs.
01
Ignore volatile fields
02
Normalize dynamic values
03
Map cross-system codes
04
Deep compare
Platform
A modular testing suite
Compose the pieces you need — from core orchestration to optional Hub reporting.
- Snapline Core
- Declarative test orchestration
- Reconciliation engine
- Deep JSON comparison with field paths
- API adapters
- REST, GraphQL, SOAP
- Auth adapters
- Basic, OAuth2, OpenID
- Messaging adapters
- Publish-and-poll for async flows
- Snapline Hub
- Optional results dashboard
Snapline Hub
Optional test results reporting
Snapline Hub stores and visualizes test run reports. It is optional — use it when you want a shared dashboard for pass rates, history, and structured diffs across Node.js and Python runs.
- Dashboard — pass/fail summaries, pass rate, recent runs
- Run history — filter by status, drill into suites and steps
- Diff viewer — path, actual, and expected side by side
- Upload — import existing report JSON files
- Push from CI — ingest reports after each test job
- Flexible storage — SQLite by default, database options for teams
Next steps
Continue exploring
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