grpc-gateway-csv

A CSV marshaler for grpc-gateway. Implements the runtime.Marshaler interface to render gRPC responses as CSV.

Installation

go get github.com/mgoeppe/grpc-gateway-csv

Usage

Register the marshaler with the grpc-gateway ServeMux:

import csv "github.com/mgoeppe/grpc-gateway-csv"

mux := runtime.NewServeMux(
    runtime.WithMarshalerOption("text/csv", &csv.Marshaler{}),
)

Options

• RowDelim — row delimiter (default: \n)
• FieldDelim — field delimiter (default: ;)
• InnerDelim — delimiter for merged values within a field (default: |)
• NoHeader — suppress header row
• Printf — custom format function (e.g., for locale-aware number formatting)

Documentation on grpc-gateway custom marshalers: Customizing Your Gateway.