Appian Web API needs to exposed to start a process in Appian with documents from external system

Question

Is it possible to receive one or more documents from external system via Appian Web API to start a process in Appian with received documents from external system?

ekanshj · Answer

Hi Shakilah Please refer to the Appian documentation for your requirement https://docs.appian.com/suite/help/20.3/passing-a-web-api-document-into-a-process-model.html

sandeepd · Answer

Hi Shakilah , 
 Yes, it is possible. Please refer the document and sharing code snippet as well. 
 https://docs.appian.com/suite/help/20.3/passing-a-web-api-document-into-a-process-model.html

Use below code as it is, only change Process model Constant:- 
 a!localVariables( 
 /*Check whether the request body contains a document*/ local!success: not(or(rule!APN_isEmpty(http!request.body),isnull(http!request.body)) ), 
 if( local!success, 
 /*If a document was uploaded, start the Upload Student Transcript process*/ a!startProcess( processModel: cons!XYZCONSTANT, processParameters: { 
 /*A document*/ transcript: http!request.body, /*unid:http!request.headers.unid*/ unid:http!request.queryParameters.docFolderName 
 /*Metadata from parameters or headers*/ /*studentId: http!request.queryParameters.studentId*/ }, onSuccess: a!httpResponse( statusCode: 200, headers: {}, 
 /*Print the document id, name, and extension of the uploaded document*/ body: concat( "Upload Successful: ", document(http!request.body, "id"), " - ", document(http!request.body, "name"), ".", document(http!request.body, "extension") ) ), onError: a!httpResponse( statusCode: 500, headers: {}, body: "500 Internal Server Error" ) ), 
 /*If no document was uploaded, return an error code*/ a!httpResponse( statusCode: 400, headers: {}, body: "400 Document Not Provided" ) ) ) 
 
 Thanks, Sandeep