curl --request PUT \
  --url https://app.stockshift.io/api/v1/engineering/boms/{bom}/lines/{line}/alternates \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "alternates": [
    {
      "component": "<string>",
      "quantity": "<string>",
      "unit": "<string>"
    }
  ]
}
'

import requests

url = "https://app.stockshift.io/api/v1/engineering/boms/{bom}/lines/{line}/alternates"

payload = { "alternates": [
        {
            "component": "<string>",
            "quantity": "<string>",
            "unit": "<string>"
        }
    ] }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://app.stockshift.io/api/v1/engineering/boms/{bom}/lines/{line}/alternates",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'alternates' => [
        [
                'component' => '<string>',
                'quantity' => '<string>',
                'unit' => '<string>'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($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://app.stockshift.io/api/v1/engineering/boms/{bom}/lines/{line}/alternates"

	payload := strings.NewReader("{\n  \"alternates\": [\n    {\n      \"component\": \"<string>\",\n      \"quantity\": \"<string>\",\n      \"unit\": \"<string>\"\n    }\n  ]\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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))

}

{
  "data": {
    "id": "<string>",
    "item_id": "<string>",
    "item_sku": "<string>",
    "item_name": "<string>",
    "base_unit": "<string>",
    "make_or_buy": "<string>",
    "yield_quantity": "<string>",
    "archived": true,
    "line_count": 123,
    "created_at": "<string>",
    "updated_at": "<string>",
    "revision": {
      "id": "<string>",
      "number": 123,
      "label": "<string>",
      "status": "<string>",
      "yield_quantity": "<string>",
      "released_at": "<string>",
      "obsoleted_at": "<string>",
      "created_at": "<string>"
    },
    "editable": true,
    "revisions_enabled": true,
    "lines": [
      {
        "id": "<string>",
        "position": 123,
        "component_id": "<string>",
        "component_sku": "<string>",
        "component_name": "<string>",
        "quantity": "<string>",
        "unit": "<string>",
        "scrap_percent": "<string>",
        "reference_designators": "<string>",
        "note": "<string>",
        "component_bom_id": "<string>",
        "phantom": true,
        "alternates": [
          {
            "id": "<string>",
            "rank": 123,
            "component_id": "<string>",
            "component_sku": "<string>",
            "component_name": "<string>",
            "quantity": "<string>",
            "unit": "<string>"
          }
        ]
      }
    ],
    "revisions": [
      {
        "id": "<string>",
        "number": 123,
        "label": "<string>",
        "status": "<string>",
        "yield_quantity": "<string>",
        "released_at": "<string>",
        "obsoleted_at": "<string>",
        "created_at": "<string>"
      }
    ],
    "alternates_enabled": true
  }
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "code": "<string>",
  "detail": "<string>",
  "errors": {},
  "feature": "<string>",
  "reason": "<string>",
  "attempts_left": 123,
  "rule_ids": [
    "<string>"
  ],
  "witness": "<string>",
  "blind_recount": true,
  "flags": [
    {
      "flag": "<string>",
      "facts": {},
      "choices": [
        "<string>"
      ]
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "code": "<string>",
  "detail": "<string>",
  "errors": {},
  "feature": "<string>",
  "reason": "<string>",
  "attempts_left": 123,
  "rule_ids": [
    "<string>"
  ],
  "witness": "<string>",
  "blind_recount": true,
  "flags": [
    {
      "flag": "<string>",
      "facts": {},
      "choices": [
        "<string>"
      ]
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "code": "<string>",
  "detail": "<string>",
  "errors": {},
  "feature": "<string>",
  "reason": "<string>",
  "attempts_left": 123,
  "rule_ids": [
    "<string>"
  ],
  "witness": "<string>",
  "blind_recount": true,
  "flags": [
    {
      "flag": "<string>",
      "facts": {},
      "choices": [
        "<string>"
      ]
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "code": "<string>",
  "detail": "<string>",
  "errors": {},
  "feature": "<string>",
  "reason": "<string>",
  "attempts_left": 123,
  "rule_ids": [
    "<string>"
  ],
  "witness": "<string>",
  "blind_recount": true,
  "flags": [
    {
      "flag": "<string>",
      "facts": {},
      "choices": [
        "<string>"
      ]
    }
  ]
}

{
  "type": "<string>",
  "title": "<string>",
  "status": 123,
  "code": "<string>",
  "detail": "<string>",
  "errors": {},
  "feature": "<string>",
  "reason": "<string>",
  "attempts_left": 123,
  "rule_ids": [
    "<string>"
  ],
  "witness": "<string>",
  "blind_recount": true,
  "flags": [
    {
      "flag": "<string>",
      "facts": {},
      "choices": [
        "<string>"
      ]
    }
  ]
}