crud_generator/bin/templates/README.md_

The service implements synchronous data exchange.

Service for exchanging data with Postgres SQL database
Data exchange is done using different methods:
1. DB CRUD operations - direct exchange with the database
    (each table model has methods Read(), Update(), Create(), Save(), Delete(), Restore())
2. GRPC - exchange with the database using the GRPC protocol
    (the client service that needs to exchange with the database connects to the sync_exchange server service, the latter exchanges with the database)
3. NRPC - exchange with the database using the NRPC protocol
    (the client service that needs to exchange with the database connects to the NATS service, which sends commands to the sync_exchange server, the latter exchanges with the database)

Before starting CRUD operations, with a direct connection to the DB, you must specify the transport through which the exchange will take place (not necessary for GRPC, NRPC) using the command:
InitCrudTransport_DB()
from module
"gitlab.aescorp.ru/dsp_dev/claim/sync_service/pkg/crud_starter"

Also, to get started, the environment variables must be filled in:
(in ".env" file)

1) for DB CRUD:
    DB_HOST=""
    DB_NAME=""
    DB_SCHEME=""
    DB_PORT=""
    DB_USER=""
    DB_PASSWORD=""

2) for GRPC:
    SYNC_SERVICE_HOST=
    SYNC_SERVICE_PORT=

3) for NRPC:
    BUS_LOCAL_HOST=
    BUS_LOCAL_PORT=

For NRPC (and GRPC) it is advisable to connect there first and disconnect at the end
nrpc_client.Connect()
defer nrpc_client.CloseConnection()
otherwise, the code will still connect there and will not disconnect at the end of the microservice.