Performance Testing:Stress test WeChat mini programs

Step 1: Build a token-retrieval API endpoint

Create an API endpoint in your environment that calls the WeChat token API and returns the access token. Keep this endpoint available throughout the stress test so that PTS can retrieve fresh tokens continuously.

A typical response from your token endpoint:

{
  "access_token": "T7MeDnBIMKRJdgUB8RNQixyhUPJPaJEG",
  "expires_in": 7200
}

PTS extracts the access_token field from this JSON response in Step 3.

Step 2: Create a PTS scenario

1. Log on to the PTS console.

2. Choose Performance Test > Create Scenario, and then click PTS.

3. Enter a scenario name, such as myAPP.

Step 3: Configure the token-retrieval API operation

This is the first API operation in the scenario. It calls your custom token endpoint and extracts the access token from the response.

1. On the Scenario Settings tab, expand the first API operation and enter the URL and parameters of your token-retrieval endpoint.

2. Click the Output Parameter Definition tab and configure the following settings: PTS uses the parsing expression to locate the access_token field in the JSON response body shown in Step 1.

   Field	Value
   Output Parameter Name	access_token
   Source	Body:JSON
   Parsing Expression	access_token

   

Step 4: Configure the business API operation

This is the second API operation. It sends requests to your mini program's activity page API and uses the token extracted in Step 3.

1. Click Add API to add a second API operation.

2. Enter the URL of your mini program's activity page API. Set the request method to POST.

3. Pass the access token to this API operation:

   1. In the lower part of the page, click Parameters. In the Parameters panel, click Session Parameters.

   2. Click the Copy icon next to the access_token output parameter to copy the parameter reference.

      

   3. Click the Body Definition tab of the second API operation. Enter a key name (for example, input_token) in the Key field and paste the copied parameter reference in the Value field.

      

Step 5: Configure load parameters and run the test

1. In the Stress Mode Configuration section, configure load parameters based on your testing goals:

   Note

   For guidance on choosing a stress testing model, see Configure the stress testing model and level.

   Parameter	Description
   Max VUs	Maximum number of virtual users to simulate
   Total Test Duration	How long the test runs

2. Click Save and Start.

3. In the Note dialog box, set Execution Cycle to Execute Now, select the The test is permitted and complies with the applicable laws and regulations checkbox, and then click Start Test.

Step 1: Prepare a token file

Create a CSV file named token.csv with a token column header and one token per row. You can create an Excel file and save it as a CSV file, or use Apache Commons CSV to generate a CSV file.

token
T7MeDnBIMKRJdgUB8RNQixyhUPJPaJEG
cqKscgeNWFPkkkaR4dBfcD4A2pD1CYFK
eh3lbjmsjd9jh65xSwvBWvDtmky25CK9

Step 2: Create a PTS scenario

1. Log on to the PTS console.

2. Choose Performance Test > Create Scenario, and then click PTS.

3. Enter a scenario name, such as myAPP.

4. On the Scenario Settings tab, enter the URL and parameters of your mini program's activity page API.

Step 3: Upload the token file

1. In the lower part of the scenario page, click Data Sources.

2. On the Files tab, click + Upload File and upload token.csv.

3. Select Use First Line as Parameter Name so that PTS uses token as the parameter name and skips the header row when reading data.

Step 4: Bind the token parameter to the API operation

1. Next to the API operation name, click the icon and select Add Parameter.

2. Expand the Parameter section. On the Data Source Parameters tab, specify the Parameter Name and click the Copy icon to copy the parameter reference.

3. Click the Body Definition tab of the API operation. Enter a key name (for example, token) in the Key field and paste the copied parameter reference in the Value field.

   

Step 5: Configure load parameters and run the test

1. In the Stress Mode Configuration section, configure Max VUs and Total Test Duration based on your testing goals.

2. Click Save and Start.

3. In the Note dialog box, set Execution Cycle to Execute Now, select the The test is permitted and complies with the applicable laws and regulations checkbox, and then click Start.