curl --request POST \
  --url http://dolphinflashcards.com/api/import-anki-flashcards \
  --header 'Content-Type: multipart/form-data' \
  --form file='@example-file' \
  --form jwtToken=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VySUQiOiIxMjM0NSJ9.abc123... \
  --form 'flashcardName=Spanish Vocabulary' \
  --form folder=Languages/Spanish \
  --form 'flashcardDescription=Imported from Anki deck' \
  --form termField=Front \
  --form definitionField=Back \
  --form stripHtml=true

import requests

url = "http://dolphinflashcards.com/api/import-anki-flashcards"

files = { "file": ("example-file", open("example-file", "rb")) }
payload = {
    "jwtToken": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VySUQiOiIxMjM0NSJ9.abc123...",
    "flashcardName": "Spanish Vocabulary",
    "folder": "Languages/Spanish",
    "flashcardDescription": "Imported from Anki deck",
    "termField": "Front",
    "definitionField": "Back",
    "stripHtml": "true"
}

response = requests.post(url, data=payload, files=files)

print(response.text)

const form = new FormData();
form.append('file', '<string>');
form.append('jwtToken', 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VySUQiOiIxMjM0NSJ9.abc123...');
form.append('flashcardName', 'Spanish Vocabulary');
form.append('folder', 'Languages/Spanish');
form.append('flashcardDescription', 'Imported from Anki deck');
form.append('termField', 'Front');
form.append('definitionField', 'Back');
form.append('stripHtml', 'true');

const options = {method: 'POST'};

options.body = form;

fetch('http://dolphinflashcards.com/api/import-anki-flashcards', 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 => "http://dolphinflashcards.com/api/import-anki-flashcards",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"jwtToken\"\r\n\r\neyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VySUQiOiIxMjM0NSJ9.abc123...\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"flashcardName\"\r\n\r\nSpanish Vocabulary\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"folder\"\r\n\r\nLanguages/Spanish\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"flashcardDescription\"\r\n\r\nImported from Anki deck\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"termField\"\r\n\r\nFront\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"definitionField\"\r\n\r\nBack\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"stripHtml\"\r\n\r\ntrue\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Content-Type: multipart/form-data"
  ],
]);

$response = curl_exec($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 := "http://dolphinflashcards.com/api/import-anki-flashcards"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"jwtToken\"\r\n\r\neyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VySUQiOiIxMjM0NSJ9.abc123...\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"flashcardName\"\r\n\r\nSpanish Vocabulary\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"folder\"\r\n\r\nLanguages/Spanish\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"flashcardDescription\"\r\n\r\nImported from Anki deck\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"termField\"\r\n\r\nFront\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"definitionField\"\r\n\r\nBack\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"stripHtml\"\r\n\r\ntrue\r\n-----011000010111000001101001--")

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

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("http://dolphinflashcards.com/api/import-anki-flashcards")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"jwtToken\"\r\n\r\neyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VySUQiOiIxMjM0NSJ9.abc123...\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"flashcardName\"\r\n\r\nSpanish Vocabulary\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"folder\"\r\n\r\nLanguages/Spanish\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"flashcardDescription\"\r\n\r\nImported from Anki deck\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"termField\"\r\n\r\nFront\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"definitionField\"\r\n\r\nBack\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"stripHtml\"\r\n\r\ntrue\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("http://dolphinflashcards.com/api/import-anki-flashcards")

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

request = Net::HTTP::Post.new(url)
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"jwtToken\"\r\n\r\neyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VySUQiOiIxMjM0NSJ9.abc123...\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"flashcardName\"\r\n\r\nSpanish Vocabulary\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"folder\"\r\n\r\nLanguages/Spanish\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"flashcardDescription\"\r\n\r\nImported from Anki deck\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"termField\"\r\n\r\nFront\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"definitionField\"\r\n\r\nBack\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"stripHtml\"\r\n\r\ntrue\r\n-----011000010111000001101001--"

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

{
  "flashcardID": "987654321"
}

{
  "error": "<string>"
}

{
  "error": "Internal server error occurred"
}