How to export/download Response Body into an external file from Postman Collection Runner Results?

Question

I am working on a project where I have to hit a web service multiple times with different values of a variable

For example, http://mywebservice.com?variable1={{value}}

and different values are passed using Postman collection runner.

I want to download the response body of all the requests into a file. How do I do that?

Answer 1

I faced this situation and solved it by using the CLI tool newman

First you need to export your collection and the environment as JSON files. Then install newman using the command:

sudo npm install -g newman

Then if you want a neat looking HTML report for the results, then first install the external reported newman-reporter-html with the below command

sudo npm install -g newman-reporter-html

You can generate the report now by running the following command:

newman run <path to your collection json file> -e <path to your environment json file> -r cli,html

By default, the HTML file will not contain the request and response body. In order to render that, first download the default handlebars template and then tweak it a little bit. You can find the default handlebars template here. Download the file and save it as template.hbs. Then open it in any editor and look for the code where it is rendering the Status Code. It might look like this:

<div class="col-md-12">&nbsp;</div>
<br/><div class="col-md-4">Status code</div><div class="col-md-8">{{response.code}}</div><br/>

Below this part, add the following lines:

<div class="col-md-12">&nbsp;</div>
<br/><div class="col-md-4">Request body</div>
<div class="col-md-8">
    <textarea class="json" disabled rows="8" cols="70">
        {{request.body}}
    </textarea>
</div><br/>
<div class="col-md-12">&nbsp;</div>
<br/><div class="col-md-4">Response body</div>
<div class="col-md-8">
    <textarea class="json" disabled rows="8" cols="70">
        {{response.body}}
    </textarea>
</div><br/>

Now you can run the following command to render the HTML with request and response body:

newman run <path to your collection json file> -e <path to your environment json file> -r cli,html --reporter-html-template template.hbs

Hope this helps!