Create composite

curl --request POST \
  --url https://api.emidat.com/v2/composites \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "external_id": "BLENDED_CEMENT_MIX_A",
  "plant_id": "11111111-1111-1111-1111-111111111111",
  "name": "Blended Cement Mix A",
  "composite_type": "chemicals",
  "items": [
    {
      "elementary_id": "22222222-2222-2222-2222-222222222222",
      "percentage": 60
    },
    {
      "elementary_id": "55555555-5555-5555-5555-555555555555",
      "percentage": 30
    },
    {
      "elementary_id": "66666666-6666-6666-6666-666666666666",
      "percentage": 10
    }
  ]
}
'

import requests

url = "https://api.emidat.com/v2/composites"

payload = {
    "external_id": "BLENDED_CEMENT_MIX_A",
    "plant_id": "11111111-1111-1111-1111-111111111111",
    "name": "Blended Cement Mix A",
    "composite_type": "chemicals",
    "items": [
        {
            "elementary_id": "22222222-2222-2222-2222-222222222222",
            "percentage": 60
        },
        {
            "elementary_id": "55555555-5555-5555-5555-555555555555",
            "percentage": 30
        },
        {
            "elementary_id": "66666666-6666-6666-6666-666666666666",
            "percentage": 10
        }
    ]
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    external_id: 'BLENDED_CEMENT_MIX_A',
    plant_id: '11111111-1111-1111-1111-111111111111',
    name: 'Blended Cement Mix A',
    composite_type: 'chemicals',
    items: [
      {elementary_id: '22222222-2222-2222-2222-222222222222', percentage: 60},
      {elementary_id: '55555555-5555-5555-5555-555555555555', percentage: 30},
      {elementary_id: '66666666-6666-6666-6666-666666666666', percentage: 10}
    ]
  })
};

fetch('https://api.emidat.com/v2/composites', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.emidat.com/v2/composites",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'external_id' => 'BLENDED_CEMENT_MIX_A',
    'plant_id' => '11111111-1111-1111-1111-111111111111',
    'name' => 'Blended Cement Mix A',
    'composite_type' => 'chemicals',
    'items' => [
        [
                'elementary_id' => '22222222-2222-2222-2222-222222222222',
                'percentage' => 60
        ],
        [
                'elementary_id' => '55555555-5555-5555-5555-555555555555',
                'percentage' => 30
        ],
        [
                'elementary_id' => '66666666-6666-6666-6666-666666666666',
                'percentage' => 10
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.emidat.com/v2/composites"

	payload := strings.NewReader("{\n  \"external_id\": \"BLENDED_CEMENT_MIX_A\",\n  \"plant_id\": \"11111111-1111-1111-1111-111111111111\",\n  \"name\": \"Blended Cement Mix A\",\n  \"composite_type\": \"chemicals\",\n  \"items\": [\n    {\n      \"elementary_id\": \"22222222-2222-2222-2222-222222222222\",\n      \"percentage\": 60\n    },\n    {\n      \"elementary_id\": \"55555555-5555-5555-5555-555555555555\",\n      \"percentage\": 30\n    },\n    {\n      \"elementary_id\": \"66666666-6666-6666-6666-666666666666\",\n      \"percentage\": 10\n    }\n  ]\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-API-Key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.emidat.com/v2/composites")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"external_id\": \"BLENDED_CEMENT_MIX_A\",\n  \"plant_id\": \"11111111-1111-1111-1111-111111111111\",\n  \"name\": \"Blended Cement Mix A\",\n  \"composite_type\": \"chemicals\",\n  \"items\": [\n    {\n      \"elementary_id\": \"22222222-2222-2222-2222-222222222222\",\n      \"percentage\": 60\n    },\n    {\n      \"elementary_id\": \"55555555-5555-5555-5555-555555555555\",\n      \"percentage\": 30\n    },\n    {\n      \"elementary_id\": \"66666666-6666-6666-6666-666666666666\",\n      \"percentage\": 10\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.emidat.com/v2/composites")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"external_id\": \"BLENDED_CEMENT_MIX_A\",\n  \"plant_id\": \"11111111-1111-1111-1111-111111111111\",\n  \"name\": \"Blended Cement Mix A\",\n  \"composite_type\": \"chemicals\",\n  \"items\": [\n    {\n      \"elementary_id\": \"22222222-2222-2222-2222-222222222222\",\n      \"percentage\": 60\n    },\n    {\n      \"elementary_id\": \"55555555-5555-5555-5555-555555555555\",\n      \"percentage\": 30\n    },\n    {\n      \"elementary_id\": \"66666666-6666-6666-6666-666666666666\",\n      \"percentage\": 10\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "external_id": "BLENDED_CEMENT_MIX_A",
  "plant_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "name": "Blended Cement Mix A",
  "composite_type": "chemicals",
  "items": [
    {
      "elementary_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "percentage": 60
    }
  ],
  "created_at": "2023-11-07T05:31:56Z"
}

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "external_id": "BLENDED_CEMENT_MIX_A",
  "plant_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "name": "Blended Cement Mix A",
  "composite_type": "chemicals",
  "items": [
    {
      "elementary_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "percentage": 60
    }
  ],
  "created_at": "2023-11-07T05:31:56Z"
}

{
  "msg": "supplier product requires a supplier plant",
  "err_code": "err_supplier_product_missing_supplier_plant"
}

{
  "msg": "supplier product requires a supplier plant",
  "err_code": "err_supplier_product_missing_supplier_plant"
}

{
  "msg": "supplier product requires a supplier plant",
  "err_code": "err_supplier_product_missing_supplier_plant"
}

{
  "msg": "supplier product requires a supplier plant",
  "err_code": "err_supplier_product_missing_supplier_plant"
}

{
  "msg": "supplier product requires a supplier plant",
  "err_code": "err_supplier_product_missing_supplier_plant"
}

POST

composites

Create composite

curl --request POST \
  --url https://api.emidat.com/v2/composites \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "external_id": "BLENDED_CEMENT_MIX_A",
  "plant_id": "11111111-1111-1111-1111-111111111111",
  "name": "Blended Cement Mix A",
  "composite_type": "chemicals",
  "items": [
    {
      "elementary_id": "22222222-2222-2222-2222-222222222222",
      "percentage": 60
    },
    {
      "elementary_id": "55555555-5555-5555-5555-555555555555",
      "percentage": 30
    },
    {
      "elementary_id": "66666666-6666-6666-6666-666666666666",
      "percentage": 10
    }
  ]
}
'

import requests

url = "https://api.emidat.com/v2/composites"

payload = {
    "external_id": "BLENDED_CEMENT_MIX_A",
    "plant_id": "11111111-1111-1111-1111-111111111111",
    "name": "Blended Cement Mix A",
    "composite_type": "chemicals",
    "items": [
        {
            "elementary_id": "22222222-2222-2222-2222-222222222222",
            "percentage": 60
        },
        {
            "elementary_id": "55555555-5555-5555-5555-555555555555",
            "percentage": 30
        },
        {
            "elementary_id": "66666666-6666-6666-6666-666666666666",
            "percentage": 10
        }
    ]
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    external_id: 'BLENDED_CEMENT_MIX_A',
    plant_id: '11111111-1111-1111-1111-111111111111',
    name: 'Blended Cement Mix A',
    composite_type: 'chemicals',
    items: [
      {elementary_id: '22222222-2222-2222-2222-222222222222', percentage: 60},
      {elementary_id: '55555555-5555-5555-5555-555555555555', percentage: 30},
      {elementary_id: '66666666-6666-6666-6666-666666666666', percentage: 10}
    ]
  })
};

fetch('https://api.emidat.com/v2/composites', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.emidat.com/v2/composites",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'external_id' => 'BLENDED_CEMENT_MIX_A',
    'plant_id' => '11111111-1111-1111-1111-111111111111',
    'name' => 'Blended Cement Mix A',
    'composite_type' => 'chemicals',
    'items' => [
        [
                'elementary_id' => '22222222-2222-2222-2222-222222222222',
                'percentage' => 60
        ],
        [
                'elementary_id' => '55555555-5555-5555-5555-555555555555',
                'percentage' => 30
        ],
        [
                'elementary_id' => '66666666-6666-6666-6666-666666666666',
                'percentage' => 10
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.emidat.com/v2/composites"

	payload := strings.NewReader("{\n  \"external_id\": \"BLENDED_CEMENT_MIX_A\",\n  \"plant_id\": \"11111111-1111-1111-1111-111111111111\",\n  \"name\": \"Blended Cement Mix A\",\n  \"composite_type\": \"chemicals\",\n  \"items\": [\n    {\n      \"elementary_id\": \"22222222-2222-2222-2222-222222222222\",\n      \"percentage\": 60\n    },\n    {\n      \"elementary_id\": \"55555555-5555-5555-5555-555555555555\",\n      \"percentage\": 30\n    },\n    {\n      \"elementary_id\": \"66666666-6666-6666-6666-666666666666\",\n      \"percentage\": 10\n    }\n  ]\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-API-Key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.emidat.com/v2/composites")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"external_id\": \"BLENDED_CEMENT_MIX_A\",\n  \"plant_id\": \"11111111-1111-1111-1111-111111111111\",\n  \"name\": \"Blended Cement Mix A\",\n  \"composite_type\": \"chemicals\",\n  \"items\": [\n    {\n      \"elementary_id\": \"22222222-2222-2222-2222-222222222222\",\n      \"percentage\": 60\n    },\n    {\n      \"elementary_id\": \"55555555-5555-5555-5555-555555555555\",\n      \"percentage\": 30\n    },\n    {\n      \"elementary_id\": \"66666666-6666-6666-6666-666666666666\",\n      \"percentage\": 10\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.emidat.com/v2/composites")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"external_id\": \"BLENDED_CEMENT_MIX_A\",\n  \"plant_id\": \"11111111-1111-1111-1111-111111111111\",\n  \"name\": \"Blended Cement Mix A\",\n  \"composite_type\": \"chemicals\",\n  \"items\": [\n    {\n      \"elementary_id\": \"22222222-2222-2222-2222-222222222222\",\n      \"percentage\": 60\n    },\n    {\n      \"elementary_id\": \"55555555-5555-5555-5555-555555555555\",\n      \"percentage\": 30\n    },\n    {\n      \"elementary_id\": \"66666666-6666-6666-6666-666666666666\",\n      \"percentage\": 10\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "external_id": "BLENDED_CEMENT_MIX_A",
  "plant_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "name": "Blended Cement Mix A",
  "composite_type": "chemicals",
  "items": [
    {
      "elementary_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "percentage": 60
    }
  ],
  "created_at": "2023-11-07T05:31:56Z"
}

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "external_id": "BLENDED_CEMENT_MIX_A",
  "plant_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "name": "Blended Cement Mix A",
  "composite_type": "chemicals",
  "items": [
    {
      "elementary_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "percentage": 60
    }
  ],
  "created_at": "2023-11-07T05:31:56Z"
}

{
  "msg": "supplier product requires a supplier plant",
  "err_code": "err_supplier_product_missing_supplier_plant"
}

{
  "msg": "supplier product requires a supplier plant",
  "err_code": "err_supplier_product_missing_supplier_plant"
}

{
  "msg": "supplier product requires a supplier plant",
  "err_code": "err_supplier_product_missing_supplier_plant"
}

{
  "msg": "supplier product requires a supplier plant",
  "err_code": "err_supplier_product_missing_supplier_plant"
}

{
  "msg": "supplier product requires a supplier plant",
  "err_code": "err_supplier_product_missing_supplier_plant"
}

Authorizations

X-API-Key

string

header

required

Per-manufacturer API key in the X-API-Key header, format emidat-{key_id}-{secret} where key_id is a random public handle. Issued by an owner in the Emidat dashboard; carries its own permission scopes, optional plant restrictions, and optional expiry. A revoked, expired, or unknown key returns 401. See the Authentication guide for details.

Headers

Idempotency-Key

string

Optional client-generated key (e.g. a UUID) that makes a create idempotent — the only mechanism that does so. A replay carrying the same key returns the original response unchanged (200); reusing a key with a different request body is rejected with 409. Keys are scoped to your manufacturer and retained for 6h. See External IDs.

Body

application/json

plant_id

string<uuid>

required

The plant's Emidat UUID.

name

string

required

Human-readable composite name. Must be unique among your active composites at this plant; a duplicate returns 409.

Example:

"Blended Cement Mix A"

composite_type

enum<string>

required

Composite category. Every material in the composite must belong to a material type allowed for this category.

Available options:

chemicals,

plastics,

electronics,

facing_layers,

glass,

fittings,

resins,

plastics_metal,

mechanical_composites,

glass_chemicals,

glass_carbon_reinforced_polymers,

masterbatches,

processed_plastics,

fabrics,

furniture_component

items

object[]

required

Materials that constitute this composite — at least 2, no duplicates. Percentages across all entries must sum to exactly 100. Every material must be allowed for the composite_type.

Minimum array length: 2

Show child attributes

external_id

string | null

Your own composite code. Optional. When provided it is unique among your active composites — creating another with the same code returns 409 (see External IDs).

Example:

"BLENDED_CEMENT_MIX_A"

Response

Returned unchanged — an Idempotency-Key replay.

string<uuid>

required

Emidat-assigned composite UUID.

external_id

string | null

required

Your own code for this composite, null when none is set. Supplier products reference the composite by its Emidat id; BOM entries reference those supplier products, not the composite directly.

Example:

"BLENDED_CEMENT_MIX_A"

plant_id

string<uuid>

required

The plant's Emidat UUID.

name

string

required

Human-readable composite name.

Example:

"Blended Cement Mix A"

composite_type

enum<string>

required

Composite category. Every material in the composite must belong to a material type allowed for this category.

Available options:

chemicals,

plastics,

electronics,

facing_layers,

glass,

fittings,

resins,

plastics_metal,

mechanical_composites,

glass_chemicals,

glass_carbon_reinforced_polymers,

masterbatches,

processed_plastics,

fabrics,

furniture_component

items

object[]

required

Ingredients constituting this composite, with percentages summing to 100.

Show child attributes

created_at

string<date-time>

required

⌘I

Get Started

Guides

API Key

Plants

Production Processes

Product Instances

Prechain Products

Supplier Companies

Supplier Plants

Supplier Products

Silos

Composites

Create composite

Authorizations

Headers

Body

Response