404 error when saving to S3?

[Viper512]

I'm getting a 404 error when I run the following code.
The S3 bucket is new and has no special configuration, clicked through created the bucket.

Any Help would be appreciated!

Thanks.

Code :

const AWS = require("aws-sdk");

AWS.config.region = process.env.region;
AWS.config.update({
  region: "us-east-1",
  accessKeyId: "....",
  secretAccessKey: "....",
});

const s3 = new AWS.S3();

let upload = multer({
  storage: multerS3({
    s3: s3,
    bucket: "mytestbucket",
    acl: "public-read",
    metadata: function (req, file, callback) {
      console.log("file", file);
      callback(null, { fieldName: file.fieldname });
    },
    key: function (req, file, callback) {
      callback(null, Date.now().toString());
    },
  }),
});

app.post(
  "/api/upload",
  upload.array("files"),
  function (error, req, res, next) {
    if (error) {
      console.log(error);
      return res.status(422).json({ ...error });
    }

    return res.json({ text: `Successfully uploaded files!` });
  }
);

Error :

404: 
    at Request.extractError (....\api\node_modules\aws-sdk\lib\services\s3.js:712:35)
    at Request.callListeners (....\api\node_modules\aws-sdk\lib\sequential_executor.js:106:20)
    at Request.emit (....\api\node_modules\aws-sdk\lib\sequential_executor.js:78:10)
    at Request.emit (....\api\node_modules\aws-sdk\lib\request.js:688:14)
    at Request.transition (....\api\node_modules\aws-sdk\lib\request.js:22:10)
    at AcceptorStateMachine.runTo (....\api\node_modules\aws-sdk\lib\state_machine.js:14:12)
    at ....\api\node_modules\aws-sdk\lib\state_machine.js:26:10
    at Request.<anonymous> (....\api\node_modules\aws-sdk\lib\request.js:38:9)
    at Request.<anonymous> (....\api\node_modules\aws-sdk\lib\request.js:690:12)
    at Request.callListeners (....\api\node_modules\aws-sdk\lib\sequential_executor.js:116:18)
    at Request.emit (....\api\node_modules\aws-sdk\lib\sequential_executor.js:78:10)
    at Request.emit (....\api\node_modules\aws-sdk\lib\request.js:688:14)
    at Request.transition (....\api\node_modules\aws-sdk\lib\request.js:22:10)
    at AcceptorStateMachine.runTo (....\api\node_modules\aws-sdk\lib\state_machine.js:14:12)
    at ....\api\node_modules\aws-sdk\lib\state_machine.js:26:10
    at Request.<anonymous> (....\api\node_modules\aws-sdk\lib\request.js:38:9)
    at Request.<anonymous> (....\api\node_modules\aws-sdk\lib\request.js:690:12)
    at Request.callListeners (....\api\node_modules\aws-sdk\lib\sequential_executor.js:116:18)
    at callNextListener (....\api\node_modules\aws-sdk\lib\sequential_executor.js:96:12)
    at IncomingMessage.onEnd (....\api\node_modules\aws-sdk\lib\event_listeners.js:313:13)
    at IncomingMessage.emit (events.js:327:22)
    at IncomingMessage.EventEmitter.emit (domain.js:467:12)
    at endReadableNT (internal/streams/readable.js:1327:12)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  message: null,
  code: 404,
  region: null,
  time: 2021-05-05T14:45:46.472Z,
  requestId: 'SNII9QGJUEB7168MVOMF5J8SOVVV4KQNSO5AEMVJF66Q9ASUAAJG',
  extendedRequestId: undefined,
  cfId: undefined,
  statusCode: 404,
  retryable: false,
  retryDelay: 78.56223248138232,
  storageErrors: []
}

[Viper512]

It's trying to hit aws-sdk is being used to hit https://dynamodb.ca-central-1.amazonaws.com, not s3.

[Viper512]

I came across the problem.

I had

AWS.config.update(
   {
   region: process.env.region,
   endpoint: process.env.apiUrl // was set to https://dynamodb.ca-central-1.amazonaws.com
   });

multer-s3 uses the endpoint in the global config, but I was using for dynamodb config, initially.

I moved dynamodb config to the document client :

var docClient = new AWS.DynamoDB.DocumentClient({
  region: process.env.region,
  endpoint: process.env.apiUrl});

then added config to S3 client :

const s3 = new AWS.S3({
  region: "ca-central-1",
  accessKeyId: "....",
  secretAccessKey: "...."
});