在Flutter中使用REST API将列表数据发送到Cloud Firestore时出错 [英] Error while sending List data to cloud firestore using REST api in flutter

问题描述

我无法在Flutter中使用REST API将字符串列表发送到Cloud Firestore.

I'm not able to send List of string to cloud firestore using REST api in flutter.

//###### here is my code ##########

Future<bool> addVisit(Visit visit) async { //function
try {
var response = await http.post( //post method to send data
  "${VISIT_API}",
  headers:
      {"Authorization": "Bearer ${Utils.loginToken}"},

可以正常工作到"Facility"，但在插入"Facility"时会出错:因为所有其他都是字符串值，而Facility的类型为List

Working fine upto "Facility", but getting error while inserting "Facility: as all others are String values and Facility is of type List

  body: json.encode(
    {
      "fields": {
        "status": {"stringValue": visit.status},
        "id": {"stringValue": visit.id},
        "name": {"stringValue": visit.name},
        "dateTime": {"integerValue": visit.dateTime},
        "mob": {"integerValue": visit.mob},
        "idproof": {"integerValue": visit.idproof},
        "address": {"stringValue": visit.address},
        "purpose ": {"stringValue": visit.purpose},
        "facility": {"arrayValue": visit.facility} //error line
      }
    },
  ),
);
print("reach");
if (response.statusCode == 200) { // successful
  print("visit added");
  return true;
} else {
  print(response.body);
}
} catch (err) {
throw err;
}
}

我做类似的后请求

 String VISIT_API =
 "https://firestore.googleapis.com/v1/projects/<database-id>/databases/(default)/documents/visits";

错误消息在这里

//###### Error Message #########
I/flutter (26972): {     //console output
I/flutter (26972):   "error": {
I/flutter (26972):     "code": 400,
I/flutter (26972):     "message": "Invalid JSON payload received. Unknown name \"arrayValue\" at 
'document.fields[8].value': Proto field is not repeating, cannot start list.",
I/flutter (26972):     "status": "INVALID_ARGUMENT",
I/flutter (26972):     "details": [
I/flutter (26972):       {
I/flutter (26972):         "@type": "type.googleapis.com/google.rpc.BadRequest",
I/flutter (26972):         "fieldViolations": [
I/flutter (26972):           {
I/flutter (26972):             "field": "document.fields[8].value",
I/flutter (26972):             "description": "Invalid JSON payload received. Unknown name 
\"arrayValue\" at 'document.fields[8].value': Proto field is not repeating, cannot start list."  
I/flutter (26972):           }
I/flutter (26972):         ]
I/flutter (26972):       }
I/flutter (26972):     ]
I/flutter (26972):   }
I/flutter (26972): }

//#################################

//visit.facility contains :
//["lunch" , "dinner"]

推荐答案

尝试像这样编写您的 facility 数组值:

Try writing your facility array value like this:

"facility": {
  "arrayValue": {
    "values": [
      {
        "stringValue": "lunch"
      },
      {
        "stringValue": "dinner"
      }
    ]
  }
}

值" 部分来自对值和 arrayValue

这篇关于在Flutter中使用REST API将列表数据发送到Cloud Firestore时出错的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！