ID

For the ID field, you can use the following setting to autogenerate the id from one or multiple fields. You can use standard Javascript string interpolation to inject field values. You simply need to use the property name in the autogen value. There are also a few special variables that you can use below.

{
  "autogen" : "${title}-${now}"
}

Special Autogen Variables

• now - Current timestamp in milliseconds (e.g., 1692123456789)
• timestamp - Current date/time in ISO format without colons/dashes (e.g., 20230815T143056)
• uuid - Real UUID v4 format (e.g., 550e8400-e29b-41d4-a716-446655440000)
• uid - Short random alphanumeric string (e.g., a4k7m2x)
• oid - Object ID counter (increments with each new object in collection)
• oid-00000 - Zero-padded Object ID (e.g., oid-00001, oid-12345)
• currentyear - Full 4-digit year (e.g., 2025)
• currentyear2 - 2-digit year (e.g., 25)
• currentmonth - Zero-padded month 01-12 (e.g., 01, 12)
• currentday - Zero-padded day 01-31 (e.g., 01, 31)

Autogen Special Variables Examples

Using timestamp for date-based IDs:

{
  "autogen" : "${title}-${timestamp}"
}

Generates: my-post-20230815T143056

Using now for unique numeric IDs:

{
  "autogen" : "item-${now}"
}

Generates: item-1692123456789

Using uuid for unique IDs:

{
  "autogen" : "${title}-${uuid}"
}

Generates: my-post-550e8400-e29b-41d4-a716-446655440000

Using uid for short random IDs:

{
  "autogen" : "${title}-${uid}"
}

Generates: my-post-a4k7m2x

OID (Object ID) Examples

The oid placeholder provides automatic sequential numbering based on the collection’s object count:

{
  "autogen" : "item-${oid}"
}

Generates: item-1, item-2, item-3, etc.

Zero-padded OID:

{
  "autogen" : "product-${oid-00000}"
}

Generates: product-00001, product-00002, product-00003, etc.

Different padding lengths:

{
  "autogen" : "${oid-000}"
}

Generates: 001, 002, 003, etc.

Combined with other placeholders:

{
  "autogen" : "${title}-${oid-00}"
}

Generates: my-title-01, another-title-02, etc.

The OID counter automatically increments each time a new object is created in the collection, ensuring unique sequential IDs.

Date-Based ID Examples

The date variables are useful for creating time-based IDs that sort chronologically:

Year-based membership IDs:

{
  "autogen" : "${currentyear}-${oid-000000}"
}

Generates: 2025-000001, 2025-000002, etc.

Short date format:

{
  "autogen" : "${currentyear2}${currentmonth}${currentday}-${oid-000}"
}

Generates: 251107-001, 251107-002, etc. (YY-MM-DD-ID format)

Invoice-style IDs:

{
  "autogen" : "INV-${currentyear}${currentmonth}-${oid-0000}"
}

Generates: INV-202511-0001, INV-202511-0002, etc.

Membership cards:

{
  "autogen" : "26-${currentyear2}-${oid-000000}"
}

Generates: 26-25-000001, 26-25-000002, etc.