尽管运行成功，Firebase 函数在 Flutter 中返回 null

Question

我看到了非常相似的问题，但我仍然看不出我的代码有什么问题。

我部署了一个 Firebase 函数，当按下特定按钮时我会从客户端调用该函数。

// Generate Payment URL
exports.paymentRequest = functions.https.onCall(async (data, context) => {
  const clientAccessToken = data.clientAccessToken;
  const recipientIban = data.recipientIban;
  const recipientName = data.recipientName;
  const paymentDescription = data.paymentDescription;
  const paymentReference = data.paymentReference;
  const productPrice = parseInt(data.productPrice);
  const jsonData = {
    "destinations": [
            {
                "accountNumber": recipientIban,
                "type": "iban"          
            }
        ],
        "amount": productPrice,
        "currency": "EUR",
        "market": "FR",
        "recipientName": recipientName,
        "sourceMessage": paymentDescription,
        "remittanceInformation": {
            "type": "UNSTRUCTURED",
            "value": paymentReference
            },
        "paymentScheme": "SEPA_INSTANT_CREDIT_TRANSFER"
};



axios({
        method: "post",
        url: "https://api.endpoint.com/payment",
        headers: { 
            'Content-Type': 'application/json',
            Accept: 'application/json',
            Authorization: `Bearer ${clientAccessToken}`,},
        data: jsonData,
        })
        .then(response => {
            //handle success
            console.log(response.data);
        
        return response.data;
    })
    .catch(response => {
        //handle error
        console.log(response);
    });
})

这是我的颤振代码：

onPressed: () async {
                      HttpsCallable callable = FirebaseFunctions.instance
                          .httpsCallable('PaymentRequest');
                      final resp = await callable.call(
                        <String, dynamic>{
                          'clientAccessToken': 'myToken',
                          'recipientIban': ibanController.text,
                          'recipientName': nameController.text,
                          'paymentDescription': descriptionController.text,
                          'paymentReference': referenceController.text,
                          'productPrice': productPriceController.text
                        },
                      );
                      print("result: ${resp.data}");
}

我确实在 Firebase 控制台中收到了 200 和完整的预期 API 响应正文（这意味着我的函数中的 console.log(response.data); 有效），但我总是在 de 中收到“结果：null” Flutter 控制台，所以好像没有返回 response.data。

我尝试在我的函数中的axios 之前添加一个return，但它并没有改变任何东西。

我错过了什么？

谢谢

Answer 1

您在axios.then() 方法中返回数据。如果您创建了异步函数，为什么不使用 await 而使用 .then() ？

试试这样：

exports.paymentRequest = functions.https.onCall(async (data, context) => {
    const clientAccessToken = data.clientAccessToken;
    const recipientIban = data.recipientIban;
    const recipientName = data.recipientName;
    const paymentDescription = data.paymentDescription;
    const paymentReference = data.paymentReference;
    const productPrice = parseInt(data.productPrice);
    const jsonData = {
        "destinations": [
            {
                "accountNumber": recipientIban,
                "type": "iban"
            }
        ],
        "amount": productPrice,
        "currency": "EUR",
        "market": "FR",
        "recipientName": recipientName,
        "sourceMessage": paymentDescription,
        "remittanceInformation": {
            "type": "UNSTRUCTURED",
            "value": paymentReference
        },
        "paymentScheme": "SEPA_INSTANT_CREDIT_TRANSFER"
    };



    const response = await axios({
        method: "post",
        url: "https://api.endpoint.com/payment",
        headers: {
            'Content-Type': 'application/json',
            Accept: 'application/json',
            Authorization: `Bearer ${clientAccessToken}`,
        },
        data: jsonData,
    })
    console.log(response.data)
    return response.data
})