Unable to upload file via REST request in GRAILS

Question

I am trying to upload a file via REST using GRAILS

curl -X POST -H "Cache-Control: no-cache" -H "Postman-Token: d5d7aef8-3964-311b-8b64-4a7a82c52323" -H "Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW" -F "file1=myfile.jpg" -F "fname=swateek" -F "lname=jena" 'http://localhost:8081/sampleFileREST/document/upload'

Here's how my controller looks like:

class DocumentController extends RestfulController<Document> {

static responseFormats = ['json', 'xml']

def upload() {

   def fileLocation="<xml>empty</xml>"
    def file = request.getParameter('file1')
    def  f1 = request.getParameter('fname')
    def f2 = "<abc>"+request.getParameter('lname')+"</abc>"
   def params = "gf"
    if(file.empty) {
        fileLocation = "<xml>"+"File cannot be empty"+"</xml><allprm>"+params+"</allprm>"
    } else {
        def documentInstance = new Document()
        documentInstance.filename = file.originalFilename
        documentInstance.fullPath = grailsApplication.config.uploadFolder + documentInstance.filename
        file.transferTo(new File(documentInstance.fullPath))
        documentInstance.save()
        fileLocation = "<xml>"+documentInstance.fullPath+"</xml>"
    }
   /* return "File uploaded to: "+documentInstance.fullPath */

    render(text: fileLocation, contentType: "text/xml", encoding: "UTF-8")
}

}

I am able to access the parameters of the request, anything except the file I am sending in the request.

Unable to figure out what's wrong here.

UPDATE

I had used .getParameter() to fetch a file. That's incorrect, the correct way is as below:

request.getFile('<filename>') // without the <>

This might raise an error in IntelliJ as "Symbol Not Found" or "Cannot Resolve Method", please follow the procedure in the answer below.

Add cURL tag too. Also show your cURL response. – Ejaz Ahmed Jul 09 '15 at 05:34 — Ejaz Ahmed, Jul 09 '15 at 05:34
@EjazAhmed thank you for your time. I just solved it. – swateek Jul 09 '15 at 05:37 — swateek, Jul 09 '15 at 05:37

score 0 · Accepted Answer · edited May 23 '17 at 10:28

0

Damn the IDE that I was using, IntelliJ.

Also, this piece of code while getting the file:

def file = request.getParameter('file1')

should be replaced as

def file = request.getFile('file1')

Now previously, when I was using the request.getFile() method I was getting an "Symbol Not Found" error and it was failing to execute the request.

Solution:

Open IntelliJ
Click on "File"
Find the option "Invalidate Caches/Restart" and wait for IntelliJ to come back again.

If this doesn't work, the other way is mentioned in this answer: IntelliJ IDEA JDK configuration on Mac OS

edited May 23 '17 at 10:28

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answered Jul 09 '15 at 05:37

swateek

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Accept this as answer. – Ejaz Ahmed Jul 09 '15 at 05:40
Thank you for the suggestion but stackoverflow says I have to wait for 2 days. – swateek Jul 09 '15 at 05:41

Unable to upload file via REST request in GRAILS

1 Answers1