Question

我们如何将以下数据插入到aws dynamodb故事中。

我尝试在node.js中使用以下代码

{
  "userId":"4",
  "gpId": "44",
  "uname": "username",
  "position":"Cloud Solution Engineer",
  "companyName" : "xyz Technlologies",
  "skills": [{"linux":"1","windows":"2","Docker": "3"}]
}

我正在尝试以下代码，它向我提供以下错误。

    var userId=event.userId;
    var gpId=event.gpId;
    var fbId=event.fbId;
    var uname=event.uname;
    var position=event.position;
    var role=event.role;
    var companyName=event.companyName;
    var skills=event.skills;

dynamodb.putItem({
        "TableName": tableName,
        "Item" : {
            "userId": {"N": userId},
            "gpId": {"N": gpId},
            "uname" : {"S":uname},
            "position" : {"S":position},
            "role" : {"S":role},
            "companyName" : {"S":companyName},
            "skills" : {"SS":skills}
        }

我尝试使用{ "errorMessage": "Expected params.Item['skills'].S to be a string", "errorType": "InvalidParameterType", "stackTrace": [ "ParamValidator.fail (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:50:37)", "ParamValidator.validateType (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:218:10)", "ParamValidator.validateString (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:150:14)", "ParamValidator.validateScalar (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:130:21)", "ParamValidator.validateMember (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:94:21)", "ParamValidator.validateStructure (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:75:14)", "ParamValidator.validateMember (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:88:21)", "ParamValidator.validateMap (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:117:14)", "ParamValidator.validateMember (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:92:21)", "ParamValidator.validateStructure (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:75:14)" ] }更改{"S": skills}。

它给了我以下错误：

skills

我已尝试按照回答中的建议应用地图，但它给了我以下错误：

{
  "errorMessage": "Unexpected key '0' found in params.Item['skills']",
  "errorType": "UnexpectedParameter",
  "stackTrace": [
    "ParamValidator.fail (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:50:37)",
    "ParamValidator.validateStructure (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:77:14)",
    "ParamValidator.validateMember (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:88:21)",
    "ParamValidator.validateMap (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:117:14)",
    "ParamValidator.validateMember (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:92:21)",
    "ParamValidator.validateStructure (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:75:14)",
    "ParamValidator.validateMember (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:88:21)",
    "ParamValidator.validate (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:34:10)",
    "Request.VALIDATE_PARAMETERS (/var/runtime/node_modules/aws-sdk/lib/event_listeners.js:109:42)",
    "Request.callListeners (/var/runtime/node_modules/aws-sdk/lib/sequential_executor.js:105:20)"
  ]
}

Answer 1

skills不是字符串集（ SS ），在以下0索引赋值后，它应该具有Map属性类型（ M ）：< / p>

var skills = event.skills[0];

http://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_AttributeValue.html

如何在AWS dynamodb中放置一个json数组

1 个答案: