Reintroduce & deprecate upload/downloadParams

Author: vladimyr

index.js

@@ -4,6 +4,7 @@ var downloader = require('s3-download-stream');
 var debug = require('debug')('s3-blob-store');
 var mime = require('mime-types');
 var uploadStream = require('s3-stream-upload');
+var util = require('util');
 
 /**
  * Create S3 blob store
@@ -115,6 +116,18 @@ S3BlobStore.prototype._s3params = function (opts, s3opts) {
   return params;
 };
 
+S3BlobStore.prototype.uploadParams = util.deprecate(function (opts) {
+  opts = opts || {};
+  var params = this._s3params(opts);
+  var contentType = opts.contentType || mime.lookup(params.Key);
+  if (contentType) params.ContentType = contentType;
+  return params;
+}, 'S3BlobStore#uploadParams(opts) is deprecated and will be removed in upcoming v5!');
+
+S3BlobStore.prototype.downloadParams = util.deprecate(function (opts) {
+  return this._s3params(opts);
+}, 'S3BlobStore#downloadParams(opts) is deprecated and will be removed in upcoming v5!');
+
 module.exports = S3BlobStore;
 
 /** @typedef {import('stream').Readable} ReadableStream */