A GRPC microservice for managing saved journey searches in the COOPGO platform. Users can save, retrieve, update, and delete their journey searches with departure/destination locations stored as GeoJSON features.

Features

Create, read, update, and delete saved searches
GeoJSON support for departure and destination locations
Owner-based access control
Paginated listing with filtering
MongoDB storage backend

Requirements

Go 1.22+
MongoDB
Protocol Buffers compiler (for regenerating proto files)

Configuration

Configuration is managed via Viper and can be set through a config.yaml file or environment variables.

Default Configuration

name: "COOPGO Saved Search Service"
dev_env: false

storage:
  db:
    type: mongodb
    mongodb:
      host: localhost
      port: 27017
      db_name: coopgo_platform
      collections:
        saved_searches: saved_searches

services:
  grpc:
    enable: true
    port: 8080

Environment Variables

Configuration keys can be set via environment variables by replacing . with _:

STORAGE_DB_MONGODB_HOST - MongoDB host
STORAGE_DB_MONGODB_PORT - MongoDB port
SERVICES_GRPC_PORT - GRPC server port
DEV_ENV - Enable development mode (pretty logging)

Building

go build -o saved-search

Running

./saved-search

Docker

Build the Docker image:

docker build \
  --build-arg ACCESS_TOKEN_USR=<git_username> \
  --build-arg ACCESS_TOKEN_PWD=<git_token> \
  -t saved-search .

Run the container:

docker run -p 8080:8080 saved-search

API

The service exposes a GRPC API with the following methods:

Method	Description
`CreateSavedSearch`	Create a new saved search
`GetSavedSearch`	Get a saved search by ID
`GetSavedSearchesByOwner`	Get all saved searches for an owner
`UpdateSavedSearch`	Update an existing saved search
`DeleteSavedSearch`	Delete a saved search
`ListSavedSearches`	List saved searches with pagination

SavedSearch Structure

message SavedSearch {
    string id = 1;
    string owner_id = 2;
    SavedSearchGeoJsonFeature departure = 3;
    SavedSearchGeoJsonFeature destination = 4;
    google.protobuf.Timestamp datetime = 5;
    google.protobuf.Struct data = 6;
    google.protobuf.Timestamp created_at = 7;
    google.protobuf.Timestamp updated_at = 8;
}

Project Structure

saved-search/
├── main.go                 # Application entry point
├── config.go               # Configuration management
├── core/
│   └── service/            # Business logic layer
├── data/
│   ├── types/              # Data types
│   └── storage/            # Storage implementations (MongoDB)
└── servers/
    └── grpc/
        ├── proto/          # Protocol buffer definitions
        └── server/         # GRPC server implementation

Regenerating Proto Files

protoc --go_out=. --go-grpc_out=. servers/grpc/proto/saved-search.proto

Testing

go test ./...

License

This project is licensed under the GNU Affero General Public License v3.0 (AGPLv3).