DIRDEF Directory definition message (D17A)
This is the standard EDIFACT D17A spec, with 13 loops and 50 segment positions, as OpenEDI JSON, an ediFabric C# template and an ediFabric Native model. To change it for a trading partner, customize it in the EDI Spec Builder.
Use the DIRDEF spec in your code
ediFabric .NET
Add the C# template and its common files to your project, or reference the template NuGet package, and read DIRDEF files into TSDIRDEF objects. See ediFabric .NET.
ediFabric Native
Native supports X12 today, and EDIFACT is coming. When it's available, map version D17A to this Native model with set_map to parse DIRDEF files to JSON from Python, Java, C or C#. See ediFabric Native.
OpenEDI
Select Customize in Spec Builder to copy the spec under your own name, change it for your partner, and parse files against it in EdiNation, ediFabric Native or ediFabric Cloud. Read about OpenEDI.
Generate DIRDEF classes in Python, Java, Node.js, Go, Rust or C
The OpenEDI file describes each DIRDEF as JSON. To work with DIRDEF data as typed objects, generate classes from the OpenEDI file in your language; the root class is TSDIRDEF. The classes keep the loops, segments, lengths and code lists, but not the EDI data formats. Read more in Generate a class from OpenEDI.
Python: datamodel-code-generator. Node.js: openapi-typescript. Java, Go, Rust and C: OpenAPI Generator.
DIRDEF structure
Loops and segments of the standard DIRDEF, with their usage and maximum repeats.
| ID | Name | Usage | Max use |
|---|---|---|---|
| UNH | UNH | Mandatory | 1 |
| BGM | BGM | Mandatory | 1 |
| DII | DII | Mandatory | 1 |
| DTM | DTM | Optional | 9 |
| FTX | FTX | Optional | 9 |
| Loop NAD | NAD | Optional | 9 |
| NAD | NAD | Mandatory | 1 |
| Loop CTA | CTA | Optional | 9 |
| CTA | CTA | Mandatory | 1 |
| COM | COM | Optional | 9 |
| Loop MSG | MSG | Optional | 9999 |
| MSG | MSG | Mandatory | 1 |
| ATT | ATT | Optional | 99 |
| FTX | FTX | Optional | 999 |
| DTM | DTM | Mandatory | 1 |
| Loop SGU | SGU | Optional | 999 |
| SGU | SGU | Mandatory | 1 |
| ATT | ATT | Optional | 9 |
| FTX | FTX | Optional | 99 |
| Loop GRU | GRU | Optional | 1 |
| GRU | GRU | Mandatory | 1 |
| ATT | ATT | Optional | 9 |
| FTX | FTX | Optional | 99 |
| Loop FNT | FNT | Optional | 99 |
| FNT | FNT | Mandatory | 1 |
| REL | REL | Optional | 1 |
| GIR | GIR | Optional | 9 |
| ATT | ATT | Optional | 9 |
| FTX | FTX | Optional | 9 |
| Loop SEG | SEG | Optional | 9999 |
| SEG | SEG | Mandatory | 1 |
| ATT | ATT | Optional | 9 |
| FTX | FTX | Optional | 9 |
| ELU | ELU | Optional | 99 |
| Loop FNT | FNT | Optional | 99 |
| FNT | FNT | Mandatory | 1 |
| REL | REL | Optional | 1 |
| GIR | GIR | Optional | 9 |
| ATT | ATT | Optional | 9 |
| FTX | FTX | Optional | 9 |
| Loop CMP | CMP | Optional | 9999 |
| CMP | CMP | Mandatory | 1 |
| ATT | ATT | Optional | 9 |
| FTX | FTX | Optional | 9 |
| ELU | ELU | Optional | 99 |
| Loop FNT | FNT | Optional | 99 |
| FNT | FNT | Mandatory | 1 |
| REL | REL | Optional | 1 |
| GIR | GIR | Optional | 9 |
| ATT | ATT | Optional | 9 |
| FTX | FTX | Optional | 9 |
| Loop ELM | ELM | Optional | 9999 |
| ELM | ELM | Mandatory | 1 |
| ATT | ATT | Optional | 9 |
| FTX | FTX | Optional | 9 |
| Loop CDS | CDS | Optional | 9999 |
| CDS | CDS | Mandatory | 1 |
| FTX | FTX | Optional | 9 |
| Loop CDV | CDV | Optional | 9999 |
| CDV | CDV | Mandatory | 1 |
| ATT | ATT | Optional | 9 |
| FTX | FTX | Optional | 9 |
| UNT | UNT | Mandatory | 1 |