plan
Request: /imexporter/plan/<instance>
Antwort: { "<planid>": { "name": "...", "filename": "...", "steps": [ { "type": "..." } ] } }
newsession
Request: /imexporter/newsession?dsn=<dsn>&eas_url=<eas_url>&eas_instance=<eas_instance>
Antwort: { "token": "<token>" }
setdata
Request: /imexporter/setdata/<token>?<var1>=<value1>[&<var2>=<value2>...]
Antwort: {}
execplan
Request: /imexporter/execplan/<token>/<instance>/<planid>?input=<file1>[:<file2>...]
Antwort: { "input": [], "output": [ "<outputfile>" ...] }
deliver
Request: /imexporter/deliver/<outputfile>