'Post in Group' API using Nodejs

Hi nfadili 

I made it work, but I'm unsure whether it will help you.

I used form-data's async getLength() function, which returns the length of the stream. This length is not exactly the file's lenght you obtain from the disk:

- fs.statSync(__basedir +'/pbix/workspace-master.pbix').size: 199460

- from getLenght: 199672

A crude working version looks like this

try {
 let AccessToken = await auth.getMicrosoftToken();
 var formData = new FormData();
 formData.append(datasetDisplayName,fs.readFileSync(__basedir +'/pbix/workspace-master.pbix'));

 var options={};
 options.method= 'POST';
 options.data= formData;
 options.url= Mustache.render("https://api.powerbi.com/v1.0/myorg/groups/{{groupId}}/imports?datasetDisplayName={{datasetDisplayName}}", { groupId: groupId, datasetDisplayName: datasetDisplayName });

 var headers = formData.getHeaders();
 headers['Authorization'] = `Bearer ${AccessToken}`;
 headers['content-type'] = 'multipart/form-data'

 formData.getLength(async function(err, len) {
   headers['Content-Length']=len;
   options.headers= headers;
   console.log(`uploading PIX ${datasetDisplayName} to the workspace ${groupId}`)
   let response = await http.axios(options)
   console.log(`It may have worked\n${JSON.stringify(response.data)}`);
   return response.data
 });

 I guess I'll see you around 😉

d