Moments Public

Events9 EndpointsEvent / Moments Public

Load the moments page data for a moments token (anonymous event token or participant token).

GET/api/event/public/moments/{momentsToken}

Returns basic event info plus the participant's own moments when a participant token is used.

Path parameters

momentsTokenrequiredstring

Responses

default

Request

curl --request GET \
  --url https://your-instance.iw-erp.de/api/event/public/moments/42 \
  --header 'x-iw-jwt-token: <TOKEN>'

const options = {method: 'GET', headers: {'x-iw-jwt-token': '<TOKEN>'}};

fetch('https://your-instance.iw-erp.de/api/event/public/moments/42', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/event/public/moments/42"

headers = {"x-iw-jwt-token": "<TOKEN>"}

response = requests.get(url, headers=headers)

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://your-instance.iw-erp.de/api/event/public/moments/42', [
  'headers' => [
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Get,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/event/public/moments/42"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/event/public/moments/42")
  .get()
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .build();

Response response = client.newCall(request).execute();

package main

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

func main() {

	url := "https://your-instance.iw-erp.de/api/event/public/moments/42"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")

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

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

	fmt.Println(string(body))

}

Dart with package:http (no controller in the iw_erp_api package)

import 'package:http/http.dart' as http;

final response = await http.get(
  Uri.parse('https://your-instance.iw-erp.de/api/event/public/moments/42'),
  headers: {'x-iw-jwt-token': '<TOKEN>'},
);
print(response.body);

Create a new moment (voice message, text, drawing, photo or video) for the event behind the moments token.

POST/api/event/public/moments/{momentsToken}

Anonymous via the event moments token, participant-bound via a participant moments token.

Path parameters

momentsTokenrequiredstring

Responses

default

Request

curl --request POST \
  --url https://your-instance.iw-erp.de/api/event/public/moments/42 \
  --header 'x-iw-jwt-token: <TOKEN>'

const options = {method: 'POST', headers: {'x-iw-jwt-token': '<TOKEN>'}};

fetch('https://your-instance.iw-erp.de/api/event/public/moments/42', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/event/public/moments/42"

headers = {"x-iw-jwt-token": "<TOKEN>"}

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

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://your-instance.iw-erp.de/api/event/public/moments/42', [
  'headers' => [
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Post,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/event/public/moments/42"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/event/public/moments/42")
  .post(null)
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .build();

Response response = client.newCall(request).execute();

package main

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

func main() {

	url := "https://your-instance.iw-erp.de/api/event/public/moments/42"

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

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")

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

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

	fmt.Println(string(body))

}

Dart with package:http (no controller in the iw_erp_api package)

import 'package:http/http.dart' as http;

final response = await http.post(
  Uri.parse('https://your-instance.iw-erp.de/api/event/public/moments/42'),
  headers: {'x-iw-jwt-token': '<TOKEN>'},
);
print(response.body);

Exchange a participant sign-up token for the participant-bound moments token.

GET/api/event/public/moments/participant_token/{signUpToken}

The sign-up token is only known to the participant, so possession of it is sufficient proof to hand out the (lazily generated) moments token.

Path parameters

signUpTokenrequiredstring

Responses

default

Request

curl --request GET \
  --url https://your-instance.iw-erp.de/api/event/public/moments/participant_token/42 \
  --header 'x-iw-jwt-token: <TOKEN>'

const options = {method: 'GET', headers: {'x-iw-jwt-token': '<TOKEN>'}};

fetch('https://your-instance.iw-erp.de/api/event/public/moments/participant_token/42', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/event/public/moments/participant_token/42"

headers = {"x-iw-jwt-token": "<TOKEN>"}

response = requests.get(url, headers=headers)

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://your-instance.iw-erp.de/api/event/public/moments/participant_token/42', [
  'headers' => [
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Get,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/event/public/moments/participant_token/42"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/event/public/moments/participant_token/42")
  .get()
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .build();

Response response = client.newCall(request).execute();

package main

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

func main() {

	url := "https://your-instance.iw-erp.de/api/event/public/moments/participant_token/42"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")

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

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

	fmt.Println(string(body))

}

Dart with the iw_erp_api package

import 'package:iw_erp_api/clients/event_moment_public_controller.dart';
import 'package:iw_erp_api/logic/iw_api_state.dart';

IwApiState().host = 'your-instance.iw-erp.de';
IwApiState().currentJwtApiToken = '<TOKEN>';

final result = await EventMomentPublicController.getParticipantToken('42');
if (result.success) {
  print(result.data);
}

Announce an upload that will arrive in chunks (large videos).

POST/api/event/public/moments/{momentsToken}/upload

Everything that can be judged without the bytes is judged here - type, mime and announced size - so a guest is not told about a file that is too large after uploading a gigabyte of it.

Path parameters

momentsTokenrequiredstring

Responses

default

Request

curl --request POST \
  --url https://your-instance.iw-erp.de/api/event/public/moments/42/upload \
  --header 'x-iw-jwt-token: <TOKEN>'

const options = {method: 'POST', headers: {'x-iw-jwt-token': '<TOKEN>'}};

fetch('https://your-instance.iw-erp.de/api/event/public/moments/42/upload', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/event/public/moments/42/upload"

headers = {"x-iw-jwt-token": "<TOKEN>"}

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

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://your-instance.iw-erp.de/api/event/public/moments/42/upload', [
  'headers' => [
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Post,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/event/public/moments/42/upload"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/event/public/moments/42/upload")
  .post(null)
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .build();

Response response = client.newCall(request).execute();

package main

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

func main() {

	url := "https://your-instance.iw-erp.de/api/event/public/moments/42/upload"

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

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")

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

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

	fmt.Println(string(body))

}

Dart with package:http (no controller in the iw_erp_api package)

import 'package:http/http.dart' as http;

final response = await http.post(
  Uri.parse('https://your-instance.iw-erp.de/api/event/public/moments/42/upload'),
  headers: {'x-iw-jwt-token': '<TOKEN>'},
);
print(response.body);

Append one chunk to an announced upload. The body is the raw chunk.

PUT/api/event/public/moments/{momentsToken}/upload/{uploadToken}/chunk/{chunkIndex}

Path parameters

`momentsToken`requiredstring
`uploadToken`requiredstring
`chunkIndex`requiredstring

Responses

default

Request

curl --request PUT \
  --url https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42 \
  --header 'x-iw-jwt-token: <TOKEN>'

const options = {method: 'PUT', headers: {'x-iw-jwt-token': '<TOKEN>'}};

fetch('https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42"

headers = {"x-iw-jwt-token": "<TOKEN>"}

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

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('PUT', 'https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42', [
  'headers' => [
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Put,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42")
  .put(null)
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .build();

Response response = client.newCall(request).execute();

package main

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

func main() {

	url := "https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42"

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

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")

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

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

	fmt.Println(string(body))

}

Dart with package:http (no controller in the iw_erp_api package)

import 'package:http/http.dart' as http;

final response = await http.put(
  Uri.parse('https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42'),
  headers: {'x-iw-jwt-token': '<TOKEN>'},
);
print(response.body);

Append one chunk to an announced upload. The body is the raw chunk.

PATCH/api/event/public/moments/{momentsToken}/upload/{uploadToken}/chunk/{chunkIndex}

Path parameters

`momentsToken`requiredstring
`uploadToken`requiredstring
`chunkIndex`requiredstring

Responses

default

Request

curl --request PATCH \
  --url https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42 \
  --header 'x-iw-jwt-token: <TOKEN>'

const options = {method: 'PATCH', headers: {'x-iw-jwt-token': '<TOKEN>'}};

fetch('https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42"

headers = {"x-iw-jwt-token": "<TOKEN>"}

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

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('PATCH', 'https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42', [
  'headers' => [
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Patch,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42")
  .patch(null)
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .build();

Response response = client.newCall(request).execute();

package main

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

func main() {

	url := "https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42"

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

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")

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

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

	fmt.Println(string(body))

}

Dart with package:http (no controller in the iw_erp_api package)

import 'package:http/http.dart' as http;

final response = await http.patch(
  Uri.parse('https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/chunk/42'),
  headers: {'x-iw-jwt-token': '<TOKEN>'},
);
print(response.body);

Turn a finished upload into a moment.

POST/api/event/public/moments/{momentsToken}/upload/{uploadToken}/complete

From here on it is the very same path a small upload takes: real mime detection on the assembled file, size check, storage, background virus scan.

Path parameters

`momentsToken`requiredstring
`uploadToken`requiredstring

Responses

default

Request

curl --request POST \
  --url https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/complete \
  --header 'x-iw-jwt-token: <TOKEN>'

const options = {method: 'POST', headers: {'x-iw-jwt-token': '<TOKEN>'}};

fetch('https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/complete', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/complete"

headers = {"x-iw-jwt-token": "<TOKEN>"}

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

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/complete', [
  'headers' => [
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Post,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/complete"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/complete")
  .post(null)
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .build();

Response response = client.newCall(request).execute();

package main

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

func main() {

	url := "https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/complete"

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

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")

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

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

	fmt.Println(string(body))

}

Dart with package:http (no controller in the iw_erp_api package)

import 'package:http/http.dart' as http;

final response = await http.post(
  Uri.parse('https://your-instance.iw-erp.de/api/event/public/moments/42/upload/42/complete'),
  headers: {'x-iw-jwt-token': '<TOKEN>'},
);
print(response.body);

Stream the file of an own moment (preview after upload).

GET/api/event/public/moments/{momentsToken}/{momentToken}/file

The secret moment token is the access capability.

Path parameters

`momentsToken`requiredstring
`momentToken`requiredstring

Responses

default

Request

curl --request GET \
  --url https://your-instance.iw-erp.de/api/event/public/moments/42/42/file \
  --header 'x-iw-jwt-token: <TOKEN>'

const options = {method: 'GET', headers: {'x-iw-jwt-token': '<TOKEN>'}};

fetch('https://your-instance.iw-erp.de/api/event/public/moments/42/42/file', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/event/public/moments/42/42/file"

headers = {"x-iw-jwt-token": "<TOKEN>"}

response = requests.get(url, headers=headers)

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://your-instance.iw-erp.de/api/event/public/moments/42/42/file', [
  'headers' => [
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Get,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/event/public/moments/42/42/file"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/event/public/moments/42/42/file")
  .get()
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .build();

Response response = client.newCall(request).execute();

package main

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

func main() {

	url := "https://your-instance.iw-erp.de/api/event/public/moments/42/42/file"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")

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

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

	fmt.Println(string(body))

}

Dart with package:http (no controller in the iw_erp_api package)

import 'package:http/http.dart' as http;

final response = await http.get(
  Uri.parse('https://your-instance.iw-erp.de/api/event/public/moments/42/42/file'),
  headers: {'x-iw-jwt-token': '<TOKEN>'},
);
print(response.body);

Delete an own moment (GDPR: guests can remove their contribution).

DELETE/api/event/public/moments/{momentsToken}/{momentToken}

Soft-deletes the moment and removes the stored file.

Path parameters

`momentsToken`requiredstring
`momentToken`requiredstring

Responses

default

Request

curl --request DELETE \
  --url https://your-instance.iw-erp.de/api/event/public/moments/42/42 \
  --header 'x-iw-jwt-token: <TOKEN>'

const options = {method: 'DELETE', headers: {'x-iw-jwt-token': '<TOKEN>'}};

fetch('https://your-instance.iw-erp.de/api/event/public/moments/42/42', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://your-instance.iw-erp.de/api/event/public/moments/42/42"

headers = {"x-iw-jwt-token": "<TOKEN>"}

response = requests.delete(url, headers=headers)

print(response.text)

<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('DELETE', 'https://your-instance.iw-erp.de/api/event/public/moments/42/42', [
  'headers' => [
    'x-iw-jwt-token' => '<TOKEN>',
  ],
]);

echo $response->getBody();

using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
  Method = HttpMethod.Delete,
  RequestUri = new Uri("https://your-instance.iw-erp.de/api/event/public/moments/42/42"),
  Headers =
  {
    { "x-iw-jwt-token", "<TOKEN>" },
  },
};
using (var response = await client.SendAsync(request))
{
  response.EnsureSuccessStatusCode();
  var body = await response.Content.ReadAsStringAsync();
  Console.WriteLine(body);
}

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("https://your-instance.iw-erp.de/api/event/public/moments/42/42")
  .delete(null)
  .addHeader("x-iw-jwt-token", "<TOKEN>")
  .build();

Response response = client.newCall(request).execute();

package main

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

func main() {

	url := "https://your-instance.iw-erp.de/api/event/public/moments/42/42"

	req, _ := http.NewRequest("DELETE", url, nil)

	req.Header.Add("x-iw-jwt-token", "<TOKEN>")

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

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

	fmt.Println(string(body))

}

Dart with package:http (no controller in the iw_erp_api package)

import 'package:http/http.dart' as http;

final response = await http.delete(
  Uri.parse('https://your-instance.iw-erp.de/api/event/public/moments/42/42'),
  headers: {'x-iw-jwt-token': '<TOKEN>'},
);
print(response.body);