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Variables Extraction

"Post-operation" supports adding the Extract Variable function, which can automatically extract data based on the results returned by the API and set it as a variable (temporary variable/environment variable/global variable), which is convenient for other APIs to use directly.

Set up Assertions​

Open an API in Apidog, and clicking the Extract Variable in Post Processors.

How to transfer data between interfaces​

Testers often encounter a situation where B request parameters depend on A the returned data.

Now assume that during an automated test process, the value in A the returned data needs to be extracted as the request parameter. The following will demonstrate how to complete the parameter transfer and connection between two interfaces.

Implementation​

1. A interface adds post-operation to extract​

Add the "environment variable" in the post-operation of the A interface , and define the variable name categoryId and JSONPath expression in it . If you want to extract the parameters data in the structure of the returned data categoryId, you should fill in the JSONPath expression $.data.category.id.

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You can see the new extracted values ​​in the console after sending the interface request.

2. B : Directly reference the variables set above in the corresponding parameter values.​

By directly filling in the request parameters in interface B {{categoryId}}, you can directly reference the value returned by interface A in the request parameters.

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You can see the new extracted values ​​in the console after sending the interface request.

If you are not sure whether the data generated by interface A is correctly referenced, you can add the following custom script in the pre-operation of interface B:

var petid = pm.environment.get("petid");

console.log(petid)

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This allows you to view the referenced variable values ​​in the console.