DynamoDB - Key element does not match the schema

Question

I'm trying to update an Item in my Dynamodb Table +Users+. I have tried many different ways but I always received the same error message:

The provided key element does not match the schema

The creation of an Item works, as well as a query but not the update. When I check on DynamoDB the user is well created:

{   "email": "[email protected]",   "password": "123",   "registration": 1460136902241,   "verified": false } 

Here is the table information:

• Table name: Users
• Primary partition key: email (String)
• Primary sort key: registration (Number)

Here is the code (called from lambda):

exports.handler = function(event, context) {     var AWS = require("aws-sdk");       var docClient = new AWS.DynamoDB.DocumentClient();      var params = {         TableName: "Users",         Item:{             email: "[email protected]",             password: "123",             verified: false,             registration: (new Date()).getTime(),         }     };      // Create the user.      docClient.put(params, function(err, data)     {         if (err)         {             context.fail("Put failed...");             return;         }          var params = {             TableName: "Users",             Key: { email : "[email protected]" },             AttributeUpdates: {                 verified: {                     Action: "PUT",                     Value: true                 }             }         };          // Update the user.         docClient.update(params, function(err, data)         {             if (err)             {                 console.log(JSON.stringify(err));                 context.fail(JSON.stringify(err));                 return;             }             context.succeed("User successfully updated.");         });       });  }; 

Do you have any idea of what could be wrong in my code?

Answer 1

You are only providing half of your primary key. Your primary key is a combination of the partition key and range key. You need to include the range key in your Key attribute in the update parameters.