* first action! (#1)

node_modules/got/source/utils/get-body-size.js

@@ -0,0 +1,32 @@
+'use strict';
+const fs = require('fs');
+const util = require('util');
+const is = require('@sindresorhus/is');
+const isFormData = require('./is-form-data');
+
+module.exports = async options => {
+	const {body} = options;
+
+	if (options.headers['content-length']) {
+		return Number(options.headers['content-length']);
+	}
+
+	if (!body && !options.stream) {
+		return 0;
+	}
+
+	if (is.string(body)) {
+		return Buffer.byteLength(body);
+	}
+
+	if (isFormData(body)) {
+		return util.promisify(body.getLength.bind(body))();
+	}
+
+	if (body instanceof fs.ReadStream) {
+		const {size} = await util.promisify(fs.stat)(body.path);
+		return size;
+	}
+
+	return null;
+};