Contain legacy mGIS API/library contracts behind a durable workspace seam, then select the entitled current dataset, web-method, analysis, and deployment surfaces without inventing replacement endpoints.
No public repository in the snapshot proves a drop-in current mGIS API or library replacement. The Mappls web and REST guides are adjacent integration evidence only; the mGIS product owner must issue the exact tenant, workspace, operation, authentication, entitlement, data, and deployment contract.
Legacy sources are fully covered. Candidate links expose the closest public evidence and its maturity; they do not silently upgrade it to an entitlement or support declaration.
mapmyindia-mgis-apismapmyindia-mgis-librariesmappls-web-maps-jsmappls-rest-apisResolve each dimension explicitly. “It compiled” does not prove identity, lifecycle, failure, privacy, or operational compatibility.
Workspace, dataset, layer, style, analysis, export, and share identities may be implicit or generation-specific.
Model every durable resource, immutable input/output version, owner, state, and retention rule explicitly.
A signed resource/state matrix and versioned fixture corpus for each selected mGIS operation.
Historical endpoints, libraries, browser methods, and callbacks may span different products or deployments.
Bind each read/write to one issued cloud, browser, or sovereign contract; never synthesize a URL from adjacent evidence.
Contract fingerprint, tenant/region/entitlement evidence, negative authorization, schema validation, and bounded conformance report.
A callback or timeout may be treated as authoritative completion or safe replay.
Persist command identity and reconcile unknown outcomes by workspace/resource/version before retry.
Duplicate, stale version, timeout-after-commit, partial analysis, failed export, revoked share, and retirement scenarios.
Do not advance on calendar alone. Each stage creates evidence that makes the next one safe and reversible.
Inventory every mGIS workspace resource, package, host, credential class, callback, and owner before changing production.
Resolve the exact entitled package or endpoint with Mappls and verify its supported toolchain, region, quotas, authentication, and lifecycle.
Move mGIS workspace resource calls behind a narrow application-owned interface without changing product behavior.
Replay approved fixtures and shadow eligible reads while preventing duplicate writes or user-visible duplicate publication, analysis, export, or sharing.
Release to internal users and bounded cohorts with health gates, ownership, automatic stop conditions, and immutable version evidence.
Remove legacy credentials and dependencies only after rollback and audit retention obligations expire.
These examples deliberately model the seam and verification pattern—not unconfirmed package symbols. Implement the adapters only after the exact target contract is issued.
type DatasetCommand = { workspaceId: string; datasetVersion: string; expectedVersion: number; idempotencyKey: string };
type DatasetReceipt = { providerId: string; version: number; state: string };
interface GeospatialWorkspacePort {
publish(command: DatasetCommand): Promise<DatasetReceipt>;
reconcile(workspaceId: string, datasetVersion: string): Promise<DatasetReceipt | null>;
retire(command: DatasetCommand): Promise<DatasetReceipt>;
}
// Exact endpoints and credentials enter only after the owning mGIS contract is
// selected. Unknown write outcomes reconcile by stable workspace/version.The candidate and exact package/endpoint versions are approved by the owning Mappls product team for the target account and region.
Journey-level contract tests pass on every supported device, browser, architecture, and release build—not only a debug simulator.
Security, privacy, accessibility, performance, quota, observability, and support owners accept measured differences.
A bounded cohort completes the agreed observation window without an unresolved severity-one or severity-two regression.
Stopping traffic is not enough. Recover durable resources, sessions, events, and in-flight commands without duplicates or hidden divergence.
Prepare support packetKeep the previous signed artifact, dependency lock, configuration, and credential valid until the observation window closes.
Make the provider selection server- or release-controlled; define automatic stop signals and one accountable rollback owner.
For durable state, prove backward-readable records or a reversible data migration before allowing candidate writes.
After rollback, reconcile in-flight requests and resources by stable identifiers instead of replaying commands blindly.