gatsby-node.js

exports.onCreateWebpackConfig = ({ stage, actions }) => {
  console.log("hello gatsby", stage);
  actions.setWebpackConfig({
    module: {
      rules: [
        {
          test: /\.csv$/,
          loader: "csv-loader",
          options: {
            dynamicTyping: true,
            header: true,
            skipEmptyLines: true,
          },
        },
      ],
    },
  });
};