Agencies and Offer Management:

These 2 services were written in GOLANG and used a PostgreSQL database, the Agencies micro-service is responsible for managing agencies. It provides functionalities such as creating, updating, retrieving, and deleting agencies.

The Offers micro-service is responsible for managing offers. It provides functionalities such as creating, updating, retrieving, and deleting offers.

https://en.wikipedia.org/wiki/Go_(programming_language)

It uses a PostgreSQL database ( Relational database ) as a primary database to store its data, and it provides a GRPC interface to deal with it, it’s dumps and all that it knows is Agency/ offers only, the methods it provides are

Agency

rpc GetAgencies(GetAgenciesRequest) returns (GetAgenciesResponse);
rpc GetAgency(GetAgencyRequest) returns (GetAgencyResponse);
rpc CreateAgency(CreateAgencyRequest) returns (CreateAgencyResponse);
rpc UpdateAgency(UpdateAgencyRequest) returns (UpdateAgencyResponse);
rpc DeleteAgency(DeleteAgencyRequest) returns (DeleteAgencyResponse);

Offers

rpc GetOffers(GetOffersRequest) returns (GetOffersResponse);
rpc GetOffer(GetOfferRequest) returns (GetOfferResponse);
rpc CreateOffer(CreateOfferRequest) returns (CreateOfferResponse);
rpc UpdateOffer(UpdateOfferRequest) returns (UpdateOfferResponse);
rpc DeleteOffer(DeleteOfferRequest) returns (DeleteOfferResponse);