sending a document to a rest web-api in base64 chunks

RE: sending a document to a rest web-api in base64 chunks

davidb545 — Thu, 09 Apr 2020 06:22:40 GMT

The solution was to extract the documents from Appian by writing an Appian web-api that allows the information to be retrieved from a program outside of appian, and then write a C# program that calls the Appian web-api to get the documents, and then the C# program pushes the documents into the Document Management System.

RE: sending a document to a rest web-api in base64 chunks

Raj — Thu, 09 Apr 2020 04:05:55 GMT

Nupoor - Did you find a solution for this use case? I am trying the same thing and running into som challenges.

RE: sending a document to a rest web-api in base64 chunks

nupoorn0002 — Thu, 03 Oct 2019 05:47:26 GMT

okay, thanks David, got your point.

RE: sending a document to a rest web-api in base64 chunks

davidb545 — Wed, 02 Oct 2019 00:57:09 GMT

Hi, I'm going from the other direction - extracting documents from appian to be stored in a document management system [for which I'm using Appian's web-api to allow the external system to access the documents it requires], so its not quite the same. I haven't investigated how one goes about retrieving documents FROM an external system into appian.

RE: sending a document to a rest web-api in base64 chunks

nupoorn0002 — Tue, 01 Oct 2019 09:36:36 GMT

Hi David,

We are looking for same kind of solution in our project where appian webAPI has to receive set of documents (array of documents) from external system (SFDC).

And the received doc has to be saved into Appian as Appian document. Can you please share ur implementation.

Thanks,

Nupoor

RE: sending a document to a rest web-api in base64 chunks

Peter Lewis — Thu, 19 Sep 2019 12:44:12 GMT

Did you try the other method to send via the integration designer? That method is probably easier to set up and doesn't require a plugin at all: https://docs.appian.com/suite/help/latest/Integration_Object.html#sending-base64-inline-with-json

RE: sending a document to a rest web-api in base64 chunks

davidb545 — Thu, 19 Sep 2019 07:33:39 GMT

Thanks Harshit, Do you have a URL where this plugin can be located? I've been searching in Appian community site and have not been able to locate it. thanks, David.

RE: sending a document to a rest web-api in base64 chunks

Harshit Bumb (Appyzie) — Thu, 19 Sep 2019 06:20:06 GMT

Hi,

This can be achieved using a simple function ConvertDocumentToBase64() which is a part of 'Base64 Document Conversion Functions' plug-in. It a plugin provided by Appian itself. This function takes the document as input and converts it into base64 string. Then after that you can create batches of the string by counting the length and dividing it in equal parts and then sending it to the destination either with MNI or creating a loop in Process model.

You can directly select content type as 'Multipart From Data' in an integration and then select type as document. Now specify the file name and document and you're done. Refer the screenshot below.

-Harshit.