Google Storage API custom header on node.js -

i using googleapis.auth.jwt authenticate , request multipart upload upload json files google storage, working expected.

here code:

  var data = json.stringify(json);   var metadata = {       name: "name"       contentlanguage: "en",       acl: [...]     };    authclient.authorize(function(err, tokens) {       if (err) {...}       request.post({         'url': 'https://....',         'qs': {           'uploadtype': 'multipart'         },           'headers' : {            'authorization': 'bearer ' + tokens.access_token         },           'multipart':  [{             'content-type': 'application/json; charset=utf-8',           'body': json.stringify(metadata)         },{            'content-type': 'application/json',           'body': data         }]       }, done);           });   }); } 

according google here if want include custom headers need add in form of "x-goog-meta-mycustomheader"

when change above metadata object this:

 var metadata = {       name: "name"       contentlanguage: "en",       "x-goog-meta-something": "completely different",       acl: [...]   }; 

it doesn't have affect.

how add custom headers when upload object google storage?

edit:

please notice multipart upload uses first part body metadata of second part (which actual part) see details here

especially:

if have metadata want send along data upload, can make single multipart/related request. simple, media-only requests, choice if data sending small enough upload again in entirety if connection fails.

metadata part: must come first, , content-type must match 1 of accepted metadata formats.

media part: must come second, , content-type must match 1 method's accepted media mime types.

this why use metadata header section, tried other combinations putting "x-goog-meta-something" in other places

take @ json request builder here: https://developers.google.com/storage/docs/json_api/v1/objects/insert

you'll notice metadata separate key in body. you'll want like:

var metadata = {       name: "name"       contentlanguage: "en",       metadata: {         "something": "completely different",       },       acl: [...]   };