Well, I got it to work. It was the beter-sqlite package <:facePalm:740380980115800086>

try {
    console.log('API URL :', `${env.STRAPI_API_URL}/c-orders`);
    const connection = await fetch(`${env.STRAPI_API_URL}/c-orders`, {
      headers: {
        Authorization: `Bearer ${env.STRAPI_API_KEY}`,
        'Content-Type': 'application/json',
      },
      method: 'POST',
      body: JSON.stringify({
        data: {
          planId,
          date: new Date(),
          deliveryDate: new Date(deliveryDate * 1000),
          status: 1,
          details,
          grossPrice: totalPrice,
          finalPrice: totalPrice,
          subscriptionId: subscription ? strapiSubscriptionId : null,
          userId,
          paymentId: paymentIntent,
          paymentStatus: subscription ? 'processing' : 'success',
          orderInfo: [],
          stripeInvoiceId: invoice,
        },
      }),
    });

    console.log('connection :', connection);
    const data = await connection.json();
    console.log('data :', JSON.stringify(data, null, 2));

    if (connection.status !== 200) wasOrderCreated = false;

    wasOrderCreated = true;
  } catch (err) {
    console.log('err :', err);
    return false;
  }

try {
    console.log('API URL :', `${env.STRAPI_API_URL}/c-orders`);
    const connection = await fetch(`${env.STRAPI_API_URL}/c-orders`, {
      headers: {
        Authorization: `Bearer ${env.STRAPI_API_KEY}`,
        'Content-Type': 'application/json',
      },
      method: 'POST',
      body: JSON.stringify({
        data: {
          planId,
          date: new Date(),
          deliveryDate: new Date(deliveryDate * 1000),
          status: 1,
          details,
          grossPrice: totalPrice,
          finalPrice: totalPrice,
          subscriptionId: subscription ? strapiSubscriptionId : null,
          userId,
          paymentId: paymentIntent,
          paymentStatus: subscription ? 'processing' : 'success',
          orderInfo: [],
          stripeInvoiceId: invoice,
        },
      }),
    });

    console.log('connection :', connection);
    const data = await connection.json();
    console.log('data :', JSON.stringify(data, null, 2));

    if (connection.status !== 200) wasOrderCreated = false;

    wasOrderCreated = true;
  } catch (err) {
    console.log('err :', err);
    return false;
  }

export interface Env {
    MY_QUEUE: Queue;
}

export default {
    async fetch(req: Request, env: Env, ctx: ExecutionContext): Promise<Response> {

        // if req.method is not POST , reject
        if (req.method !== 'POST') {
            return new Response('Sorry', { status: 405 });
        }
        const body = await req.json();
        console.log(`got body: ${JSON.stringify(body)}`)
        const result = await env.MY_QUEUE.send({
            body: body,
            contentType: "json",
        });
        console.log(`sent message to queue: ${JSON.stringify(result)}`);
        return new Response(JSON.stringify({
            return_code: "1",
            return_message: "ok"
        }), {
            headers: { 'Content-Type': 'application/json' },
        });
    },
};

export interface Env {
    MY_QUEUE: Queue;
}

export default {
    async fetch(req: Request, env: Env, ctx: ExecutionContext): Promise<Response> {

        // if req.method is not POST , reject
        if (req.method !== 'POST') {
            return new Response('Sorry', { status: 405 });
        }
        const body = await req.json();
        console.log(`got body: ${JSON.stringify(body)}`)
        const result = await env.MY_QUEUE.send({
            body: body,
            contentType: "json",
        });
        console.log(`sent message to queue: ${JSON.stringify(result)}`);
        return new Response(JSON.stringify({
            return_code: "1",
            return_message: "ok"
        }), {
            headers: { 'Content-Type': 'application/json' },
        });
    },
};

"logs": [
    {
      "message": [
        "got body: {\"data\":\"dat hart fd3 3\"}"
      ],
      "level": "log",
      "timestamp": 1696396087813
    },
    {
      "message": [
        "sent message to queue: undefined"
      ],
      "level": "log",
      "timestamp": 1696396087867
    }
  ]

"logs": [
    {
      "message": [
        "got body: {\"data\":\"dat hart fd3 3\"}"
      ],
      "level": "log",
      "timestamp": 1696396087813
    },
    {
      "message": [
        "sent message to queue: undefined"
      ],
      "level": "log",
      "timestamp": 1696396087867
    }
  ]