POST Attachment error : image is not valid and may be corrupted

[Shaun FISCHMANN]

Hi,

I've been trying to POST attachments (images) to properties for some time now, without any success. I've looked into the PHP SDKs but it was not much help. Maybe a new perspective could help.

POST https://rest.sandbox-immobilienscout24.de/restapi/api/offer/v1.0/user/me/realestate/315916648/attachment

Headers :

      'cache-control' => 'no-cache',

      'Connection' => 'keep-alive',

      'Content-Type: multipart/form-data; boundary='.'-------------61486935'

      'Accept: application/json',

      'Accept-Encoding: gzip,deflate',

      'Authorization: OAuth ....'

The response I'm getting (HTTP 412) :

[messageCode] => ERROR_RESOURCE_VALIDATION
[message] => Error while validating input for the resource. [MESSAGE: image is not valid and may be corrupted.]

I've attached the multipart/form-data content.

I'm working mainly with JSON, but I've also tried XML, same error.

The binary data of the image is correct, I've been able to convert it back to an image using online tools.

I'm also doing a GET https://rest.sandbox-immobilienscout24.de/restapi/api/offer/v1.0/user/me/realestate/315916648/attachment?externalId=61486935 just before, and it works (HTTP Code 200, empty because there's no image).

Sincerely,

Shaun

[Shaun FISCHMANN]

Hello,

Is anybody able to help me ?

Sincerely,

[Shaun FISCHMANN]

Hello ? Any ideas on how to include images in POST ?

[stefan....@scout24.com]

Do you try to make this request with Postman?

And the configuration on the attached screenshots?

[Shaun FISCHMANN]

Hi,

I've tried using POSTMAN, but I'm not sure I understand what your configuration mean.

I've tried your configuration (check headers and body) :

I've tried having the attachment base64 encoded and xml metadata in the body (raw) with the multipart/form-data boundary :

And I've tried form-data with two files containing attachment (base64 encoded) and xml metadata :

Hope you can help, really appreciate any feedback.

Sincerely,

Shaun

[Viacheslav Kremeshnyi]

Hello Shaun,

Sorry for bothering almost one year after you asked your question you but I'm facing the same issue now and can't solve it within several days.

Did you find the solution for 412 issue? If yes it would be nice if you could share it.

I'm sending post request with raw image file data(with Content-Transfer-Encoding: binary) and getting 412 error.

Same error if I'm using Content-Transfer-Encoding: base64 header and base64 encoded image data.

Appreciate any feedback.

Sincerely,

Viacheslav

[Shaun FISCHMANN]

Hi Viacheslav,

Yes I was able to solve the issue recently after months of leaving this project on the side.

Instead of base64 encoding myself and building the multipart from scratch, I used CurlFile : https://www.php.net/manual/en/class.curlfile.php

$fields = [

      'metadata' => new \CurlFile($metadataPath, 'application/json', 'metadata.json'),

      'attachment' => new \CurlFile($picturePath, 'image/jpeg', 'picture.jpg')

    ];

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST'); 

curl_setopt($ch, CURLOPT_POST, 1);

curl_setopt($ch, CURLOPT_INFILESIZE, filesize($picturePath));

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);

curl_setopt($ch, CURLOPT_HEADER, true);

curl_setopt($ch, CURLOPT_HTTPHEADER, array(

      'Content-Type:multipart/form-data',

      'Accept: application/json;strict=true',

      'Authorization: ...'

));

curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);

Hope this helps.

Shaun

[Viacheslav Kremeshnyi]

Hi Shaun,

Thank you for your help and quick reply. I wish immoscout24 support would be so fast.

One more question, I tried your code and it didn't not work for me, I'm getting 401 error.

So it's authorization issue, I'm pretty sure I'm doing this part not correct. 

Could you please tell a bit more about this part " Authorization: ...'", what exactly you put instead of ... to make it work?

I already have oauth_token because before image posting I'm posting real estate item which is working fine for me. 

Regards,

Viacheslav

[Shaun FISCHMANN]

You should use the same OAUTH method you used when you posted the real estate. It depends on your situation :

https://api.immobilienscout24.de/api-docs/authentication/introduction/