Curl command to create new issue in RedMine for a specific project with some pre-created custom fields. Since the CSV importers all seem ancient, perhaps we can do this with a REST POST for each line in a CSV ourselves.

curl-redmine-issue.sh

#!/bin/sh 
# You have to enable the Custom Field for the tracker you're targetting: bug, feature, whatever.
# cf without 'id' doesn't set anything
# cf with 'id' and no 'name' sets that attr
#
# Upon creation we get a record back with custom fields filled in, with id:
#
# "custom_fields":[{"id":1,  "name":"Operating System",         "value":"FeedBSD"},
#                  {"id":7,  "name":"Operating System Version", "value":""},
#                  {"id":2,  "name":"Database",                 "value":""},
#                  {"id":8,  "name":"Database Version",         "value":""},
#                  {"id":3,  "name":"Web Server",               "value":""},
#                  {"id":4,  "name":"App Server",               "value":""},
#                  {"id":9,  "name":"App Server Version",       "value":""},
#                  {"id":5,  "name":"Memory (GB)",              "value":""},
#                  {"id":6,  "name":"Disk Used (GB)",           "value":""},
#                  {"id":10, "name":"Pi",                       "value":""}],

curl -v \
    --user "username:PASSWORD" \
    -H "Content-Type: application/json" \
    -X POST \
    -d '{"issue": {"project_id": "app-migration", "subject":"curl subject custom OS", "priority_id": 4, "custom_fields": [{"value":"FeedBSD", "id": 1}, {"value":"1.2.3", "id":7}, {"value":"Cust", "id":12, "name":"Custy"} ] } }' \
    http://ec2-INSTANCE-ID-HERE.compute-1.amazonaws.com/redmine/issues.json