Upload into a InterSystems IRIS REST API
If you need create a upload REST API with IRIS is very simple. Do these procedures:
From Postman client you send a file
.png)
P.S.: It is a multipart form with a file type using "file" in the name. The request type is form/multipart. See the http request:
POST /image-analyzer/postFile HTTP/1.1 Host: localhost:52773 Content-Length: 213 Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW ----WebKitFormBoundary7MA4YWxkTrZu0gW Content-Disposition: form-data; name="file"; filename="/C:/Users/yurim/OneDrive/Imagens/salesschema.png" Content-Type: image/png (data) ----WebKitFormBoundary7MA4YWxkTrZu0gW
Do a REST API backend to get the file and save (upload):
P.S.: pay attention if the destination folder has write permissions.
Class dc.upload.UploadRESTApp Extends %CSP.REST
{
Parameter CHARSET = "utf-8";
Parameter CONVERTINPUTSTREAM = 1;
Parameter CONTENTTYPE = "application/json";
Parameter Version = "1.0.0";
Parameter HandleCorsRequest = 1;
{
<Routes>
<!-- post image -->
<Route Url="/postFile" Method="POST" Call="PostFile" />
</Routes>
}
ClassMethod PostFile() As %Status
{
//try to do the actions
try {
Set info = {}
Set source = %request.GetMimeData("file")
Set destination=##class(%Stream.FileBinary).%New()
Set destination.Filename="/opt/irisbuild/output/"_source.FileName
set tSC=destination.CopyFrom(source) //reader open the file
set result=destination.%Save()
set info.return = result
set info.message = "File saved into /opt/irisbuild/output/"_source.FileName
Set %response.ContentType = ..#CONTENTTYPEJSON
Set %response.Headers("Access-Control-Allow-Origin")="*"
Write info.%ToJSON()
Set tSC=$$$OK
//returns error message to the user
} catch e {
Set tSC=e.AsStatus()
Set pOutput = tSC
}
Quit tSC
}
}
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