This Go module is the customer-facing executable. main.go composes the copied runtime and local customer service. Customers, auth, sessions and verification own their models and supporting code; generic infrastructure comes from the sibling shared library module.

Run

Requires Go 1.27 and an SXCHNGE-owned MongoDB replica set for transactions. Copy config.example.yml to an untracked config.yml in this directory. Set:

SXCHNGE_MONGO_URI: URI for SXCHNGE's database.
SXCHNGE_JWT_SECRET: random signing key, at least 32 bytes for HS256.
SXCHNGE_DOMAIN: local hostname, such as localhost:8082.
SXCHNGE_API_PROTOCOL: http locally, https in deployment.
SXCHNGE_API_ENDPOINT: /api/v1.

From the repository root, run make run-backend, or run go run . here. Flags: -config.file, -version, -debug. Configure exact browser origins in YAML; browser refresh cookies require HTTPS. An empty local database needs no organization, role, policy or seed; the runtime creates its indexes.

The runtime mounts health, login, API login, refresh, rotation and logout routes. Customer/application-client records must exist for login. The customer service supports atomic account/activation creation and deletion with session revocation. Signup and email verification delivery/completion are available when api.notifications is configured. Flutter selects the backend using SXCHNGE_API_URL and SXCHNGE_CLIENT_ID. See auth notification setup and contracts. API versions are installed explicitly by the product composition. See version installation and compatibility for selection, mounts, shared lifecycle and adding a future version. Customer profile endpoint wiring remains follow-up work.

Optional api.sendico connects sign-up to the public individual registry and immutable Facts intake. The adapter owns organization context and consumed wire contracts; local customers retain no platform tenancy. See configuration, recovery and measurement.

Validate

go test -race ./... and go vet ./... validate this module. Tests require Docker for disposable Mongo replica sets. Root make test and make lint-backend also validate shared. See source provenance.

Customer quotations and payments

With api.sendico, runtime composes the customer-scoped payment service and public HTTP provider adapter. Flutter backend mode selects this path automatically; missing provider configuration never returns demo money. See contracts, provisioning, authorization and rollout.