Clipper

Clipper is a Youtube audio clipper developed using modern web technologies.

• Go
• protobuf, grpc-web
• Typescript
• React

It is currently in early development.

Development

Dependencies

It is required that an ffmpeg binary is available in the current path.

Running the app

The backend requires configuration via environment variables - see backend/.env.example. All variables must be set unless they are marked as optional.

Then, the server can be started with:

cd backend/
go run cmd/clipper/main.go

The frontend can be launched on localhost:3000 with:

cd frontend/
yarn start

Code generation

To regenerate protobuf code and GRPC stubs, first install protoc and the GRPC dependencies:

go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest

Then generate the code with:

./protogen.sh

To regenerate the database access layer, first install sqlc. New queries can be added to backend/sql/queries.sql, and code regenerated with:

cd backend/
sqlc generate

Mocks require mockery to be installed, and can be regenerated with:

go generate

Migrations

Database migrations require golang-migrate.

go install -tags 'postgres' github.com/golang-migrate/migrate/v4/cmd/migrate@latest

Migrations then can be run with:

cd backend/
migrate -path sql/migrations -database $DATABASE_URL up