Skip to main content
POST
/
v1
/
material-processing
/
{id}
/
unlink-files
Unlink files
curl --request POST \
  --url https://api.cula.tech/tracking/v1/v1/material-processing/{id}/unlink-files \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "file_ids": [
    "fil_01kqzcjrpyf27tgeaqk8twgw91"
  ]
}
'
{
  "id": "stp_01kqzcjrpxf27tge33jwvjhkff",
  "config_id": "stc_01kqzcjrpyf27tgeeekpvvx0zt",
  "config_version_id": "scv_01kqzcjrpyf27tgefhb58rc9d4",
  "site": {
    "id": "<string>",
    "external_id": "<string>"
  },
  "executed_at": "2026-05-01T19:30:00Z",
  "data_points": [
    {
      "config_id": "dpc_01kqzcjrpyf27tgeq6a84z0yhy",
      "config_version_id": "dpv_01kqzcjrpyf27tgerf3nqreg37",
      "name": "Weight net",
      "input_value": {
        "value": 47079.76,
        "unit": "lb"
      },
      "value": {
        "value": 21353.12,
        "unit": "kg"
      }
    }
  ],
  "file_ids": [],
  "created_at": "2026-05-06T19:34:00Z",
  "updated_at": "2026-05-06T19:34:00Z",
  "input": [
    {
      "id": "mct_01kqzcjrpyf27tgenyy2stmy5z",
      "data_points": [
        {
          "config_id": "dpc_01kqzcjrpyf27tgeq6a84z0yhy",
          "config_version_id": "dpv_01kqzcjrpyf27tgerf3nqreg37",
          "name": "Weight net",
          "input_value": {
            "value": 47079.76,
            "unit": "lb"
          },
          "value": {
            "value": 21353.12,
            "unit": "kg"
          }
        }
      ],
      "contents": [
        {
          "material": {
            "id": "mat_01kqzcjrpyf27tge9dnvsqv8t2",
            "external_id": "corn-no2-yellow"
          },
          "weight_in_kg": 21353.12
        }
      ]
    }
  ],
  "output": [
    {
      "id": "mct_01kqzcjrpyf27tgenyy2stmy5z",
      "data_points": [
        {
          "config_id": "dpc_01kqzcjrpyf27tgeq6a84z0yhy",
          "config_version_id": "dpv_01kqzcjrpyf27tgerf3nqreg37",
          "name": "Weight net",
          "input_value": {
            "value": 47079.76,
            "unit": "lb"
          },
          "value": {
            "value": 21353.12,
            "unit": "kg"
          }
        }
      ],
      "contents": [
        {
          "material": {
            "id": "mat_01kqzcjrpyf27tge9dnvsqv8t2",
            "external_id": "corn-no2-yellow"
          },
          "weight_in_kg": 21353.12
        }
      ]
    }
  ],
  "external_id": "GC-HARVEST-2026-001",
  "display_key": "GC-HARVEST-2026-001",
  "location": {
    "lat": 46.8797,
    "long": -102.7903,
    "street": "100 Industrial Parkway",
    "city": "Richardton",
    "postcode": "58652",
    "country": "United States",
    "country_code": "US"
  }
}

Documentation Index

Fetch the complete documentation index at: https://docs.cula.tech/llms.txt

Use this file to discover all available pages before exploring further.

Authorizations

​
Authorization
string
header
required

API key passed as a Bearer token. Keys are scoped to one organisation and a set of permitted sites. Two keys per scope (primary + secondary) are issued to support zero-downtime rotation.

Authorization: Bearer <api-key>

Path Parameters

​
id
string
required

Cula-assigned resource ID in TypeID format (e.g. stp_01kqzcjrpxf27tge33jwvjhkff). Alternatively, pass your external ID prefixed with ext- (e.g. ext-MY-STEP-001). The ext- prefix is unambiguous because TypeIDs use _ separators and never start with ext-.

Body

application/json

Request body to remove file links from a resource.

​
file_ids
string[]
required

IDs of files to unlink.

Minimum array length: 1
Example:
["fil_01kqzcjrpyf27tgeaqk8twgw91"]

Response

Files unlinked. Returns the updated resource.

A material processing step execution as returned in responses.

​
id
string
required

Cula-assigned TypeID.

Example:

"stp_01kqzcjrpxf27tge33jwvjhkff"

​
config_id
string
required

Root step config ID.

Example:

"stc_01kqzcjrpyf27tgeeekpvvx0zt"

​
config_version_id
string
required
read-only

Resolved config version used at creation time.

Example:

"scv_01kqzcjrpyf27tgefhb58rc9d4"

​
site
object
required

A resolved resource reference as returned in responses.

​
executed_at
string<date-time>
required

When the step was executed. Stored and returned in UTC.

Example:

"2026-05-01T19:30:00Z"

​
data_points
object[]
required

Step-level resolved data points.

​
file_ids
string[]
required

IDs of linked files.

Example:
[]
​
created_at
string<date-time>
required
read-only
Example:

"2026-05-06T19:34:00Z"

​
updated_at
string<date-time>
required
read-only
Example:

"2026-05-06T19:34:00Z"

​
input
object[]
required

Input material containers with resolved data points and computed contents.

​
output
object[]
required

Output material containers with resolved data points and computed contents.

​
external_id
string | null

Partner-assigned external identifier.

Example:

"GC-HARVEST-2026-001"

​
display_key
string | null

Human-readable display identifier.

Example:

"GC-HARVEST-2026-001"

​
location
object

Override location. If the step was executed at a different physical location than the site, this field captures those coordinates. Cula attributes additional transport emissions for the distance between the site and this location.