Using scripts to modify request messages

You can use pm.request to read or modify request messages.

You can use scripts to get all request parameters, but you can only use scripts to modify header and query parameters.

Modifying header and query parameters are only valid in preprocessor scripts, not in postprocessor scripts.

Using scripts to get API parameters: if the parameter contains a variable, it will not be replaced with the corresponding value. You need to use the pm.variables.replaceIn to get the actual value.

// pm.variables.replaceIn: handling variables in parameters
var body = pm.variables.replaceIn(pm.request.body.raw);
var jsonData = JSON.parse(body);

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In Apidog pre processors, there is a Built-In preprocessor named Variable Substitution, which replaces all variables (including dynamic variables) in the request with the actual value.

Scripts like set variable need to be placed before Variable Substitution so that the variable can be set successfully.

Scripts like API signature need to be dragged after Variable Substitution to get actual values of the parameters.

Header parameters

Get header parameters

Modifying Header Parameters

Query parameters

Get query parameters

Modifying Query Parameters

Body parameters

Body parameters come from pm.request.body which is a RequestBody instance.

View more details here.

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We recommend referencing variables in the Body to modify body data. You can modify the value of the corresponding variable in preprocessor scripts.

We support direct modification of body parameters in Apidog version 1.4.16 or later. See example of how to use it below:

var body = pm.request.body.toJSON();
console.log("body object", body);

var bodyStr = body.raw;
console.log("body string", bodyStr);

var bodyJSON = JSON.parse(bodyStr);
bodyJSON.id = 100;
pm.request.body.update(JSON.stringify(bodyJSON, null, 2));
console.log("Modified body", pm.request.body.toJSON());

1. Body Type: form-data

Get form-data info.

2. Body Type: x-www-form-urlencode

Get x-www-form-urlencode info.

3. Body Type: JSON

Get JSON info.

4. Body Type: raw

Get raw info.

Using scripts to modify request messages

URL related information#

Header parameters#

Query parameters#

Body parameters#

1. Body Type: form-data#

2. Body Type: x-www-form-urlencode#

3. Body Type: JSON#

4. Body Type: raw#

URL related information