Aws dynamodb 错误错误 [UnknownError]：未找到 (aws-sdk)

Question

I'm trying to add elements in a table in dynamodb like in the example below but when I run it I get this error message:

Error Error [UnknownError]: Not Found
    at Request.extractError (C:\Users\caval\Documents\GitRepos\express-es6-rest-api\node_modules\aws-sdk\lib\protocol\json.js:51:27)
    at Request.callListeners (C:\Users\caval\Documents\GitRepos\express-es6-rest-api\node_modules\aws-sdk\lib\sequential_executor.js:106:20)
    at Request.emit (C:\Users\caval\Documents\GitRepos\express-es6-rest-api\node_modules\aws-sdk\lib\sequential_executor.js:78:10)
    at Request.emit (C:\Users\caval\Documents\GitRepos\express-es6-rest-api\node_modules\aws-sdk\lib\request.js:688:14)
    at Request.transition (C:\Users\caval\Documents\GitRepos\express-es6-rest-api\node_modules\aws-sdk\lib\request.js:22:10)
    at AcceptorStateMachine.runTo (C:\Users\caval\Documents\GitRepos\express-es6-rest-api\node_modules\aws-sdk\lib\state_machine.js:14:12)
    at C:\Users\caval\Documents\GitRepos\express-es6-rest-api\node_modules\aws-sdk\lib\state_machine.js:26:10
    at Request.<anonymous> (C:\Users\caval\Documents\GitRepos\express-es6-rest-api\node_modules\aws-sdk\lib\request.js:38:9)
    at Request.<anonymous> (C:\Users\caval\Documents\GitRepos\express-es6-rest-api\node_modules\aws-sdk\lib\request.js:690:12)
    at Request.callListeners (C:\Users\caval\Documents\GitRepos\express-es6-rest-api\node_modules\aws-sdk\lib\sequential_executor.js:116:18) {
  message: 'Not Found',
  code: 'UnknownError',
  statusCode: 404,
  time: 2020-07-05T08:21:43.936Z,
  requestId: undefined,
  retryable: false,
  retryDelay: 38.04958058577693
}

I tried also with getItems , delteItems ... and I get the same error . Removing it I don't get any error, so the error come from these methods for sure.

   let ddb = new AWS.DynamoDB({
      apiVersion: "2012-08-10",
      endpoint: "http://localhost:8080",
      region: "eu-west-1",
      accessKeyId: AWS.config.credentials.accessKeyId,
      secretAccessKey: AWS.config.credentials.secretAccessKey,
    });

    let params = {
      TableName: "namOfTheTable",
      Item: {
        uuid: { N: "123" },
        name: { S: JSON.stringify(req.query.mod) },
      },
    };

    const addMod = ddb.putItem(params, function (err, data) {
      if (err) {
        console.log("Error", err);
      } else {
        console.log("Success", data);
      }
    });

Edit: the problem was that I was not using the local version so I needed to remove the property endpoint

Answer 1

This 404 not found error is being returned from http://localhost:8080 .

Are you sure that DynamoDB local is running, and if so have you set it to run on port 8080 ?

By default DynamoDB local runs on port 8000 according to the documentation on local DynamoDB usage .

Additional Note

After discussing with OP, DynamoDB local was not setup on their host machine which is what caused the 404 issues.