curl --request PATCH \
  --url https://api.bachs.io/v1/disputes/{dispute_id}/evidence \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "customer_name": "Amara Osei",
  "customer_email_address": "customer@example.com",
  "product_description": "Annual SaaS subscription, plan ID PLAN-PRO-001",
  "service_date": "2026-03-01",
  "notes": "Customer confirmed delivery via email on March 5.",
  "customer_communication_attachment_id": "upl_9f2c7b3d1e45"
}
'

const options = {
  method: 'PATCH',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    customer_name: 'Amara Osei',
    customer_email_address: 'customer@example.com',
    product_description: 'Annual SaaS subscription, plan ID PLAN-PRO-001',
    service_date: '2026-03-01',
    notes: 'Customer confirmed delivery via email on March 5.',
    customer_communication_attachment_id: 'upl_9f2c7b3d1e45'
  })
};

fetch('https://api.bachs.io/v1/disputes/{dispute_id}/evidence', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.bachs.io/v1/disputes/{dispute_id}/evidence"

payload = {
    "customer_name": "Amara Osei",
    "customer_email_address": "customer@example.com",
    "product_description": "Annual SaaS subscription, plan ID PLAN-PRO-001",
    "service_date": "2026-03-01",
    "notes": "Customer confirmed delivery via email on March 5.",
    "customer_communication_attachment_id": "upl_9f2c7b3d1e45"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

package main

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

func main() {

	url := "https://api.bachs.io/v1/disputes/{dispute_id}/evidence"

	payload := strings.NewReader("{\n  \"customer_name\": \"Amara Osei\",\n  \"customer_email_address\": \"customer@example.com\",\n  \"product_description\": \"Annual SaaS subscription, plan ID PLAN-PRO-001\",\n  \"service_date\": \"2026-03-01\",\n  \"notes\": \"Customer confirmed delivery via email on March 5.\",\n  \"customer_communication_attachment_id\": \"upl_9f2c7b3d1e45\"\n}")

	req, _ := http.NewRequest("PATCH", 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))

}

{
  "dispute_id": "dsp_3e7b1c9a2f48",
  "status": "needs_response",
  "is_response_editable": true,
  "evidence_updated_at": "2026-03-09T11:30:00.000Z"
}

{
  "detail": "Invalid request parameters",
  "error_code": "VALIDATION_ERROR",
  "errors": [
    {
      "field": "amount",
      "message": "Amount must be a positive decimal string",
      "type": "value_error"
    }
  ]
}

{
  "detail": "Invalid API key",
  "error_code": "UNAUTHORIZED"
}

{
  "detail": "API key does not have permission for this operation",
  "error_code": "FORBIDDEN"
}

{
  "detail": "Resource not found",
  "error_code": "NOT_FOUND"
}

{
  "detail": "Duplicate request detected",
  "error_code": "CONFLICT"
}

{
  "detail": "Rate limit exceeded. Please retry after a few seconds.",
  "error_code": "TOO_MANY_REQUESTS"
}

{
  "detail": "An unexpected error occurred. Please try again later.",
  "error_code": "INTERNAL_SERVER_ERROR"
}