Problem attaching files to nodes with Services

Question

I'm trying to attach files (images) to nodes via Services 3 from an external app using JavaScript.

From what I understand (and doing) is:

1) Create a node posting JSON to my endpoint domain.com/api/node.json

{
  "type":"foo",
  "title":"Hello World",
  "language":"und",
  "body":{"und":{"0":{"value":"Body Text"}}},
}

2) Create file posting JSON to my endpoint domain.com/api/file.json

{
  "filename":"image.jpg",
  "target_uri":"public://image.jpg",
  "filemime":"image/jpeg",
  "file":"myBase64String"
}

No problem at all at this point.

Then when trying to attach the files created to the node, is where I have trouble, not http errors, simply nothing happens.

First I have tried posting JSON to my endpoint domain.com/api/node/*nid/attach_file after successfully creating a new file, and getting back the fid

{
  "field_name":"foo",
  "filename":"image.jpg",
  "fid":"*fid"
}

Returning Status 200 OK empty text, but when viewing the node remains the same without the file attached.

I have also tried to create the files first and then when posting for node creation adding the fid, the node is created but no file attached.

{
  "type":"foo",
  "title":"Hello World",
  "language":"und",
  "body":{"und":{"0":{"value":"Body Text"}}},
  "field_foo":{"und":{"0":{"fid":"*fid"}}}
}

My field is a field type Image, widget Image. I have also tried in another field type file, with same results.

If someone can give me a heads up, what am I doing wrong or what is missing. I can't find any explanatory documentation on line.

Thank you.

Answer 1

try adding more data to the attached file (it might be that fid and filename is not enough I can't find the example I used a long time ago, which had a similar problem):

• alt (might be required in general or only if marked as required in bundle)
• title (might be required in general or only if marked as required in bundle)
• uid
• filemime
• uri
• status = 1
• display = 1

Some references I could find quickly:

• https://stackoverflow.com/questions/5129559/attaching-image-files-to-nodes-programmatically-in-drupal-7
• this answer: https://stackoverflow.com/a/19930610/1158887
• https://drupal.stackexchange.com/questions/120078/is-it-safe-to-reuse-the-fid-file-id

Answer 2

It looks like this is related to the issue I raised on the Services module issue queue File is created but can't view it in the browser.

I tried a few times to save a file by attaching the base64 encoded data, returned by Javascript whenever I load a file from my application.

I could only make it work by removing the base64 identifier at the beginning of the string which seems too much of a hack... So I modified Services' file resource, using file_get_contents() in order to retrieve the image content.

You can find a patch on the issue page. Word of caution, although , I simply replace a function, this patch hasn't yet been tested!