Your first request#

curl -X POST 'https://bemap.benomad.com/bgis/service/routing/1.0' \
  -u 'YOUR_ACCOUNT:YOUR_API_KEY' \
  --fail-with-body \
  -H 'Content-Type: application/json' \
  -d '{
  "routingMode": "MODE_VIAS",
  "outputLanguage": "fr",
  "destinations": [
    {
      "coordinateSat": {
        "lon": 2.32158,
        "lat": 48.86533
      }
    },
    {
      "coordinateSat": {
        "lon": 4.35655,
        "lat": 50.8447
      }
    }
  ],
  "routingCriterias": [
    "FASTEST"
  ],
  "options": [
    "POLYLINE",
    "EVENT",
    "EVT_LENGTH",
    "EVT_DURATION"
  ],
  "routingVehicleProfile": {
    "transportMode": "CAR"
  }
}'

const response = await fetch('https://bemap.benomad.com/bgis/service/routing/1.0', {
  method: 'POST',
  headers: {
    Authorization: 'Basic ' + btoa('YOUR_ACCOUNT:YOUR_API_KEY'),
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "routingMode": "MODE_VIAS",
    "outputLanguage": "fr",
    "destinations": [
      {
        "coordinateSat": {
          "lon": 2.32158,
          "lat": 48.86533
        }
      },
      {
        "coordinateSat": {
          "lon": 4.35655,
          "lat": 50.8447
        }
      }
    ],
    "routingCriterias": [
      "FASTEST"
    ],
    "options": [
      "POLYLINE",
      "EVENT",
      "EVT_LENGTH",
      "EVT_DURATION"
    ],
    "routingVehicleProfile": {
      "transportMode": "CAR"
    }
  }),
  redirect: 'manual', // a missing credential answers 302: never follow it
});

if (response.type === 'opaqueredirect' || (response.status >= 300 && response.status < 400)) throw new Error('BeMap redirected to its login page: no credentials reached it');
if (!response.ok) throw new Error(`BeMap answered ${response.status}: ${await response.text()}`);
const data = await response.json();

import requests

response = requests.post(
    "https://bemap.benomad.com/bgis/service/routing/1.0",
    auth=("YOUR_ACCOUNT", "YOUR_API_KEY"),
    json={
        "routingMode": "MODE_VIAS",
        "outputLanguage": "fr",
        "destinations": [
            {
                "coordinateSat": {
                    "lon": 2.32158,
                    "lat": 48.86533,
                },
            },
            {
                "coordinateSat": {
                    "lon": 4.35655,
                    "lat": 50.8447,
                },
            },
        ],
        "routingCriterias": ["FASTEST"],
        "options": ["POLYLINE", "EVENT", "EVT_LENGTH", "EVT_DURATION"],
        "routingVehicleProfile": {
            "transportMode": "CAR",
        },
    },
    allow_redirects=False,  # a missing credential answers 302: never follow it
)
if response.is_redirect:
    raise RuntimeError("BeMap redirected to its login page: no credentials reached it")
if response.status_code != 200:
    raise RuntimeError(f"BeMap answered {response.status_code}: {response.text}")
data = response.json()

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.nio.charset.StandardCharsets;
import java.util.Base64;

String auth = Base64.getEncoder().encodeToString("YOUR_ACCOUNT:YOUR_API_KEY".getBytes(StandardCharsets.UTF_8));
String body = """
    {
      "routingMode": "MODE_VIAS",
      "outputLanguage": "fr",
      "destinations": [
        {
          "coordinateSat": {
            "lon": 2.32158,
            "lat": 48.86533
          }
        },
        {
          "coordinateSat": {
            "lon": 4.35655,
            "lat": 50.8447
          }
        }
      ],
      "routingCriterias": [
        "FASTEST"
      ],
      "options": [
        "POLYLINE",
        "EVENT",
        "EVT_LENGTH",
        "EVT_DURATION"
      ],
      "routingVehicleProfile": {
        "transportMode": "CAR"
      }
    }
    """;

HttpRequest request = HttpRequest.newBuilder(URI.create("https://bemap.benomad.com/bgis/service/routing/1.0"))
    .header("Authorization", "Basic " + auth)
    .header("Content-Type", "application/json")
    .method("POST", HttpRequest.BodyPublishers.ofString(body))
    .build();

// HttpClient never follows redirects by default: a 302 means a missing credential.
HttpResponse<String> response = HttpClient.newHttpClient()
    .send(request, HttpResponse.BodyHandlers.ofString());
if (response.statusCode() / 100 == 3) throw new IllegalStateException("BeMap redirected to its login page: no credentials reached it");
if (response.statusCode() != 200) throw new IllegalStateException("BeMap answered " + response.statusCode() + ": " + response.body());
String json = response.body();

<?php
$body = <<<'JSON'
{
  "routingMode": "MODE_VIAS",
  "outputLanguage": "fr",
  "destinations": [
    {
      "coordinateSat": {
        "lon": 2.32158,
        "lat": 48.86533
      }
    },
    {
      "coordinateSat": {
        "lon": 4.35655,
        "lat": 50.8447
      }
    }
  ],
  "routingCriterias": [
    "FASTEST"
  ],
  "options": [
    "POLYLINE",
    "EVENT",
    "EVT_LENGTH",
    "EVT_DURATION"
  ],
  "routingVehicleProfile": {
    "transportMode": "CAR"
  }
}
JSON;

$ch = curl_init('https://bemap.benomad.com/bgis/service/routing/1.0');
curl_setopt_array($ch, [
    CURLOPT_USERPWD => 'YOUR_ACCOUNT:YOUR_API_KEY',
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
    CURLOPT_POSTFIELDS => $body,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_FOLLOWLOCATION => false, // a missing credential answers 302: never follow it
]);
$response = curl_exec($ch);
if ($response === false) throw new RuntimeException(curl_error($ch));
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($status >= 300 && $status < 400) throw new RuntimeException('BeMap redirected to its login page: no credentials reached it');
if ($status !== 200) throw new RuntimeException("BeMap answered $status: $response");

$data = json_decode($response, true);

using System.Net;
using System.Net.Http.Headers;
using System.Text;

// AllowAutoRedirect = false: a missing credential answers 302, never follow it.
var client = new HttpClient(new HttpClientHandler { AllowAutoRedirect = false });
var token = Convert.ToBase64String(Encoding.UTF8.GetBytes("YOUR_ACCOUNT:YOUR_API_KEY"));
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", token);

var body = """
    {
      "routingMode": "MODE_VIAS",
      "outputLanguage": "fr",
      "destinations": [
        {
          "coordinateSat": {
            "lon": 2.32158,
            "lat": 48.86533
          }
        },
        {
          "coordinateSat": {
            "lon": 4.35655,
            "lat": 50.8447
          }
        }
      ],
      "routingCriterias": [
        "FASTEST"
      ],
      "options": [
        "POLYLINE",
        "EVENT",
        "EVT_LENGTH",
        "EVT_DURATION"
      ],
      "routingVehicleProfile": {
        "transportMode": "CAR"
      }
    }
    """;
var response = await client.SendAsync(new HttpRequestMessage(HttpMethod.Post, "https://bemap.benomad.com/bgis/service/routing/1.0")
{
    Content = new StringContent(body, Encoding.UTF8, "application/json"),
});
if ((int)response.StatusCode / 100 == 3) throw new HttpRequestException("BeMap redirected to its login page: no credentials reached it");
if (response.StatusCode != HttpStatusCode.OK) throw new HttpRequestException($"BeMap answered {(int)response.StatusCode}: {await response.Content.ReadAsStringAsync()}");
var json = await response.Content.ReadAsStringAsync();