The fax server isn't going to be able to access the local file "c:\\temp\\q.pdf". That is why it needs the URL pointing to a file on a web server.

Check their documentation to see if it has a way to embed the contents of the file in the message.

Also, \\ is used in C++ to indicate a single back-slash. In PB the escape character is ~ and in C++ it is \.

Hi, Andy - 

Is this a PowerBuilder problem or a Documo mFax problem? You may need to ask the vendor that supplies the REST API.

Just a guess: Try supplying the file's path and name in URL form. For example: "file:///C:/test.pdf".

Have you tried if it works when opening the file in streammode?

long ll_filetoload
blob lbl_filestream

ll_filetoload = fileopen("your file", streammode!, read!, lockwrite!)

filereadex(ll_filetoload, lbl_filestream)

fileclose(ll_filetoload)

Then you have to "submit" it the way nodejs does "submit" createReadStream result. I don't know if it will work. You can test it...

Andreas.

Hi Andy,

Have you got the Powerbuilder code you are using?  Looking at the link to the documentation you provided https://docs.documo.com/#34a91cce-9cfa-421f-b04c-7a58bf29a712, the examples show attachments being sent when the api request is sent as 'multipart/form-data' rather than 'application/json'.

Have a search of this forum for multipart and there are a bunch of examples which show how to send multipart/form-data http requests.  It is pretty straightforward.  If you look at the examples for some of the other languages e.g C# and Http on the documo document page it should give you a good idea about what you are trying to achieve.  Here is part of the http message that you are after:

POST /v1/faxes HTTP/1.1
Host: api.documo.com
Authorization: Basic API_KEY
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Length: 1748

----WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="faxNumber"

11234567890
----WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="attachments"; filename="file"
Content-Type: <Content-Type header here>

(data)
----WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="coverPage"

false
----WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="coverPageId"

d1077489-5ea1-4db1-9760-853f175e8288
----WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="tags"