Upload File Using NPM Request from new Formdata() - node.js

Question

i'am develop backend using node-js and https://www.npmjs.com/package/request to handdle request to main api.
has successfully to send data in the form of string or a number. but I have a problem to send the file. before getting to the request module, i have convert all request from client using
new formdata()
end this is what i code using NPM request
export function requestAPI(method='GET', endpoint='', params={}, callback)
{
let token = ''
if(params.token)
{
token = params.token;
delete params.token;
}
//set query
if(params.query)
{
endpoint = `${endpoint}?${Url.serialize(params.query)}`
delete params.query
}
//set options
let options = {
method: method,
uri: `${process.env.API_HOST}${endpoint}`,
timeout: 6000,
headers: {
'auth' : token
},
};
// upload files
// ???
// using POST method
if(method === 'POST') {
options['form'] = params;
}
// is upload a file - request via multipart/form-data
//start request
try {
request( options , function(error, response, body){
if(error)
{
console.log(error)
return callback(httpException(500));
} else //success
{
return callback(JSON.parse(body));
}
})
} catch(err) {
return callback(httpException(500, err.message+', '+err.stack));
}
}

Answer 1

For sending files you will need to use something like multipart/form-data instead of application/json. In addition, you will need to use the formData option instead of form. For example:
var options = {
method: method,
uri: `${process.env.API_HOST}${endpoint}`,
timeout: 6000,
headers: {
'auth' : token,
},
};
// using POST method
if (method === 'POST') {
options.formData = params;
}
Then inside params you can use any values as outlined in the request and/or form-data modules' documentation. So for local files, you can just use a readable stream:
var fs = require('fs');
// ...
params.avatar = fs.createReadStream('avatar.jpg');
For files you can explicitly set a different filename and/or mime type as shown in the relevant request multipart/form-data example.

Answer 2

thanks for help guys, finaly i found the answer to solved it.
the problem on this line
if(method === 'POST') {
options['form'] = params;
}
i just change to this, to make it works
if(method === 'POST') {
options['formData'] = params;
}
and this is the complete of codes
export function requestAPI(method='GET', endpoint='', params={}, callback)
{
let token = ''
if(params.token)
{
token = params.token;
delete params.token;
}
//set query
if(params.query)
{
endpoint = `${endpoint}?${Url.serialize(params.query)}`
delete params.query
}
//set options
var options = {
method: method,
uri: `${process.env.API_HOST}${endpoint}`,
timeout: 30000,
headers: {
'auth' : token
},
};
// using POST method
if(method.toLowerCase() === 'post') {
options.formData = params;
// upload files
if(options.formData.files)
{
const files = options.formData.files
delete options.formData['files']
Object.keys(files).map(n => {
options.formData[n] = {
value: fs.createReadStream(files[n]._writeStream.path),
options: {
filename: files[n].name,
type: files[n].type
}
}
})
}
}
//start request
try {
request( options , function(error, response, body){
if(error)
{
return callback(httpException(500));
} else //success
{
return callback(JSON.parse(body));
}
})
} catch(err) {
return callback(httpException(500, err.message+', '+err.stack));
}
}