basic functionality for image upload and db change

app/controllers/image.controller.js

@@ -0,0 +1,68 @@
+const db = require('../../models'),
+	errorMaker = require('../helpers/error.maker'),
+	textCleaner = require('../helpers/text_cleaner');
+
+const AWS = require('aws-sdk');
+const fs = require('fs');
+const fileType = require('file-type');
+const bluebird = require('bluebird');
+const multiparty = require('multiparty');
+
+// configure the keys for accessing AWS
+AWS.config.update({
+	accessKeyId: process.env.AWS_ACCESS_KEY_ID,
+	secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY
+});
+
+// configure AWS to work with promises
+AWS.config.setPromisesDependency(bluebird);
+
+// create S3 instance
+const s3 = new AWS.S3();
+
+const { Organization, sequelize } = db;
+
+// abstracts function to upload a file returning a promise
+const uploadFile = (buffer, name, type) => {
+	const params = {
+		ACL: 'public-read',
+		Body: buffer,
+		Bucket: process.env.S3_BUCKET,
+		ContentType: type.mime,
+		Key: `${name}.${type.ext}`
+	};
+	return s3.upload(params).promise();
+};
+
+exports.uploadProfilePic = async (req, res, next) => {
+	const form = new multiparty.Form();
+
+	form.parse(req, async (error, fields, files) => {
+		if (error) next(errorMaker(400, error));
+		try {
+			const path = files.file[0].path;
+			const buffer = fs.readFileSync(path);
+			const type = fileType(buffer);
+			const timestamp = Date.now().toString();
+			const fileName = `bucketFolder/${timestamp}-lg`;
+			const data = await uploadFile(buffer, fileName, type);
+
+			await sequelize.query(
+				`
+					UPDATE organizations 
+						SET profile_pic_url = :profilePicUrl
+				`,
+				{
+					type: db.Sequelize.QueryTypes.UPDATE,
+					replacements: { profilePicUrl: data.Location }
+				}
+			);
+
+			return res
+				.status(200)
+				.json({ message: 'Uploaded the image for charity!' });
+		} catch (error) {
+			return next(error);
+		}
+	});
+};