Api attachments

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Posted on by Ankit Surana

Hi Team,

Can you please guide me on how to work with the API of "attachment" to attach the document to "Sales Order" or "Sales Invoice"?

I have tried sending the attached request as per documentation, but it fails with the below response:

Request:

AttachmentRequest.txt

Response:

{"error":{"code":"BadRequest","message":"Read called with an open stream or textreader. Please close any open streams or text readers before calling Read. CorrelationId: 910e6436-db62-48c5-a739-0e87dcdba8be."}}

Can you please help us in this scenario.

Looking forward to your responses.

Thanks & Regards,

Ankit

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raelhefn on at

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RE: Api attachments

Hi Ankit,

could you please try to use postman and simply perform the following:

1. Open postman type post query :

POST: localhost:6048/.../attachments

And in Body

{

"parentId" : "3af6e05a-075c-eb11-89f9-000d3a2dc4a1", //sales invoice id

"fileName": "myPDF.pdf"

}

make sure requested service is deployed into your environment and it is accessible.

community.dynamics.com/.../how-to-test-api-s-in-d365-business-central

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Ankit Surana 35 on at

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RE: Api attachments

Hi Raelhefn,

Appreciate your response.

I Have tried this. it works but how to add attachment content in the request? That my main question?

Can you please also guide me on how to achieve this?

Looking forward to your response.

With Kind Regards,

Ankit

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raelhefn on at

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RE: Api attachments

It appears that the File Content is a stream that is open during your call. Create Record most likely is complaining about it. Although I am not sure it will work, try saving the File Content to a variable and save the variable to Business Central.

learning.postman.com/.../

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Ankit Surana 35 on at

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RE: Api attachments

Hi Raelhefn,

I tried and it still didn't work. This also resulted in the same error response. Can you please help ?

Request:

{

"parentId": "3af6e05a-075c-eb11-89f9-000d3a2dc4a1",

"fileName": "Work_Order-00005-20210121174035.pdf",

"byteSize": "44033",

"attachmentContent": "{{Attachment}}"

}

Looking forward to your response.

With Kind Regards,

Ankit

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alex_li 60 on at

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RE: Api attachments

You need first to create an attachment in your BusinessCentral record by sending the POST request as it was described earlier. As a result you receive an attachment id that can be used as follows:

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JAngle 127 on at

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RE: Api attachments

Late to the party but I had to explain this to a customer a few days back so did this post: joshanglesea.wordpress.com/.../

Since had it working in Power Automate as well.

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Ankit Surana 35 on at

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RE: Api attachments

i tried as per your suggestion , but it still doesnt work.

Please see the attachment for Reference

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Ankit Surana 35 on at

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RE: Api attachments

i tried as per your suggestion , but it still doesnt work.

Please see the attachment for Reference

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JAngle 127 on at

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RE: Api attachments

Change the second v2.0 to v1.0. I got the same error as you until I flipped to that

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alex_li 60 on at

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RE: Api attachments

Hi Josh, is it possible to attach a file to Sales entities through BC api?

The method we described earlier works perfect for those entities that have Incoming Document tab.

But for Sales Order and Sales Invoice this tab is absent. There is only the "Attachments" one.

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