DynamoDB C# cannot convert string to integer error - amazon-web-services

Question

I created a DynamoDb using NET and able to getitem, which is not an empty list. I get a status 400 error on the putitem using Postman. This is the error:
"errors": {
"id": [
"Could not convert string to integer: 9134d3a0-a6bf-4409-87b3-d9fad02bd31c. Path 'id', line 2, position 44."
]
},
This is the body I use for the post:
{
"id":"9134d3a0-a6bf-4409-87b3-d9fad02bd31c",
"replyDateTime": "63669789320007900",
"body":"a good body",
"title":"best title",
"creator": " James"
}
This is my createtable code:
var request = new CreateTableRequest
{
AttributeDefinitions = new List<AttributeDefinition>
{
new AttributeDefinition
{
AttributeName = "Id",
AttributeType = "S"
},
new AttributeDefinition
{
AttributeName = "ReplyDateTime",
AttributeType = "S"
}
},
KeySchema = new List<KeySchemaElement>
{
new KeySchemaElement
{
AttributeName = "Id",
KeyType = "HASH" // Partition Key
},
new KeySchemaElement
{
AttributeName = "ReplyDateTime",
KeyType = "Range" // Sort Key
}
},
this is the putitem code:
public async Task AddNewEntry(string id, string replyDateTime, string body, string title, string creator)
{
var queryRequest = RequestBuilder(id, replyDateTime, body, title, creator);
await PutItemAsync(queryRequest);
}
private PutItemRequest RequestBuilder(string id, string replyDateTime, string body, string title, string creator)
{
var item = new Dictionary<string, AttributeValue>
{
{"Id", new AttributeValue {S = id}},
{"ReplyDateTime", new AttributeValue {S = replyDateTime}},
{"Body", new AttributeValue {S = body}},
{"Creator", new AttributeValue {S = creator}},
{"Title", new AttributeValue {S = title}}
};
return new PutItemRequest
{
TableName = "BlogDynamoDbTable",
Item = item
};
}
private async Task PutItemAsync(PutItemRequest request)
{
await _dynamoClient.PutItemAsync(request);
}
}
I believe I made the primary key a string. Why is an integer even mentioned in the error message?

Answer 1

I found my error. The model file was defining id as an integer. Grrr
I changed it to string and it posts.
public class Item
{
[Amazon.DynamoDBv2.DataModel.DynamoDBHashKey]
public string Id { get; set; }
[Amazon.DynamoDBv2.DataModel.DynamoDBRangeKey]
public string ReplyDateTime { get; set; }
public string Body { get; set; }
public string Title { get; set; }
public string Creator { get; set; }
}