Web API configuration to upload a file along with input data

RE: Web API configuration to upload a file along with input data

Dimitris Soulovaris — Wed, 13 Apr 2022 13:10:29 GMT

Did you go through the link I've attached? That contains pretty much everything you need including examples on how to build the API, how to initiate the PM and how to pass the process variables into it.

Simply, on the given example the http!request.body will be your json message which you have to pass into the Process Model in a pv. For example:

a!startProcess(
      processModel: cons!UPLOAD_STUDENT_TRANSCRIPT,
      processParameters: {

       jsonData: http!request.body

      },

The jsonData should be a process variable of type text in the PM.

For parsing the jsonData and getting your information from it, use the a!fromJson() function in an expression rule.

RE: Web API configuration to upload a file along with input data

SS — Wed, 13 Apr 2022 11:53:05 GMT

Will it be possible for you to share some sample codes if you have any?
And for passing the input as json, I can create a web api using startprocess template right?

RE: Web API configuration to upload a file along with input data

Dimitris Soulovaris — Wed, 13 Apr 2022 10:59:27 GMT

I guess you can do that and inside the Process Model that the API will initiate, you can then parse the json and export the document (transcript data) and the rest of your variables.

RE: Web API configuration to upload a file along with input data

SS — Wed, 13 Apr 2022 10:47:37 GMT

Hi Dimitris,

Thanks for your reply.
Is there no way like I can send the files as well the input parameters as a json input or form input instead of passing input parameters inside query parameters.
Also I have one more question : Can't we authorize our web api for the above action with Appian key authorization?
I was trying to call the web api from postman I get 403 error while using Appian key.

RE: Web API configuration to upload a file along with input data

Dimitris Soulovaris — Wed, 13 Apr 2022 10:41:17 GMT

I think this is what you are looking for:

docs.appian.com/.../passing-a-web-api-document-into-a-process-model.html