tencent cloud

Consuming Message
Download PDF
Last updated:2024-01-03 10:20:35
Consuming Message
Last updated: 2024-01-03 10:20:35
Download PDF

API Description

This API is used to consume a message in a queue.
Calling the ReceiveMessage API will change the status of the obtained message to inactive, and the period of being inactive is specified by the visibilityTimeout queue attribute (for more information, see CreateCmqQueue). We recommend you make the consumer call the (batch) DeleteMessage API to delete the message after it successfully consumes the message within the visibilityTimeout period; otherwise, the message will return to the active status and can be consumed again. This ensures that the message is consumed at least once, but cannot guarantee the idempotency. Therefore, deduplication logic is required on the business side.
The public/private domain names for API requests can be copied from Queue Service > API Request Address in the TDMQ for CMQ console. A sample address is as follows:
Public network address: https://cmq-gz.publicXXX.tencenttdmq.com
Private network address: http://gz.mqadapter.cmq.tencentyun.com
Note:
The API call URL varies by region.
Whenever downstream traffic is generated from using the public domain name, traffic fees will be charged (even during the beta test period). Therefore, we strongly recommend you use the private domain name to avoid traffic fees.

Input Parameters

The list below contains only the API request parameters. Other parameters can be found in Common Request Parameters.
Parameter
Required
Type
Description
queueName
Yes
String
Queue name, which is unique under the same account in an individual region. It is a string of up to 64 characters, which must begin with a letter and can contain letters, digits, and dashes (-).
pollingWaitSeconds
No
Int
Long polling wait time in seconds. Value range: 0–30. If this parameter is not set, the value of the pollingWaitSeconds queue attribute will be used by default.

Output Parameters

Parameter
Type
Description
code
Int
0: Success. others: Error. For more information, see Common Error Codes.
message
String
Error message.
requestId
String
Request ID generated by the server, which can be submitted to the backend for troubleshooting when an internal server error occurs.
msgBody
String
Body of the consumed message.
msgId
String
Unique ID of the consumed message.
receiptHandle
String
Unique message handler returned from each consumption, which is used to delete the message. Only a message handler generated from the last consumption can be used to delete the message. After successful consumption within the period of visibilityTimeout, you can use the handler to call the (batch) DeleteMessage API to delete the message. If visibilityTimeout has elapsed, the handler will become invalid.
enqueueTime
Int
Time when consumption is created and enters the queue. A Unix timestamp will be returned which is accurate down to the second.
nextVisibleTime
Int
Time when a message is visible next time (i.e., consumable again). A Unix timestamp will be returned which is accurate down to the second.
dequeueCount
Int
Reserved field.
firstDequeueTime
Int
Reserved field.

Error Codes

For more information, see Common Error Codes.

Samples

Input:
 https://domain/v2/index.php?Action=ReceiveMessage
 &queueName=test-queue-123
 &<<a href="">Common request parameters</a>>
Output:
{
"code" : 0,
"message" : "",
"requestId":"14534664555",
"msgBody":"helloworld1",
"msgId":"123345346",
"receiptHandle": "283748239349283",
"enqueueTime": 1462351990,
"firstDequeueTime": 1462352990,
"nextVisibleTime": 1462352999,
"dequeueCount": 2
}

Was this page helpful?
You can also Contact Sales or Submit a Ticket for help.
Yes
No

Feedback