AWS SQS调用ReceiveMessage未返回MessageAttributeNames问题排查

Hey there, let's break down why you're not seeing custom message attributes in your ReceiveMessage response. I've looked over your request and response details, and here are the key issues to check:

1. Did you add custom message attributes when sending the message? #

First things first: the MessageAttributeName=All parameter in your ReceiveMessage request only asks SQS to return existing custom message attributes that were set when the message was sent. If you didn't include any custom attributes in your SendMessage or SendBatchMessage call, there's nothing for SQS to return here.

Your response only shows system-level attributes (like SenderId, SentTimestamp), which are separate from custom message attributes. Custom attributes would appear in a <MessageAttribute> node inside the <Message> block if they existed.

2. Fix the whitespace issue in your request URL #

Looking at your request URL, there are unnecessary spaces between parameters, like:

https://sqs.us-east-2.amazonaws.com/123456789012/MyQueue/ ?Action=ReceiveMessage &MaxNumberOfMessages=5 ...

These spaces can cause SQS to misparse your parameters. For example, the space after ReceiveMessage might make the server interpret &MaxNumberOfMessages as part of the Action parameter value instead of a new parameter. This could mean your MessageAttributeName=All parameter isn't being recognized at all.

Clean up the URL to remove all spaces between parameters:

https://sqs.us-east-2.amazonaws.com/123456789012/MyQueue/?Action=ReceiveMessage&MaxNumberOfMessages=5&VisibilityTimeout=15&AttributeName=All&MessageAttributeName=All&Expires=2020-04-18T22%3A52%3A43PST&Version=2012-11-05&AUTHPARAMS

3. Test with specific attribute names (instead of "All") #

If you know the exact names of the custom attributes you sent, try specifying them explicitly instead of using All to rule out any parsing issues with the wildcard. For example:

&MessageAttributeName=OrderId&MessageAttributeName=CustomerEmail

Example of a valid SendMessage request with custom attributes #

To confirm you're sending attributes correctly, here's what a proper SendMessage request would look like (with a custom attribute):

Action=SendMessage
&QueueUrl=https://sqs.us-east-2.amazonaws.com/123456789012/MyQueue
&MessageBody=This is a test message
&MessageAttribute.1.Name=OrderId
&MessageAttribute.1.Value.StringValue=12345
&MessageAttribute.1.Value.DataType=String
&Version=2012-11-05
&AUTHPARAMS

When you receive this message with a corrected ReceiveMessage request, you'll see a <MessageAttribute> section in the response with your OrderId attribute.

内容的提问来源于stack exchange，提问作者Ram babu