sahilrajput.com

Learn postman

• ❤️ You can export collection via CLI in postman as described in this comment - Click here

• TODO: Learn tests with postman -

• Open link in browser

• We can mark collections as starred so that they appear on the top like that -

• We can use params ❤️❤️ in postman with a beautiful syntax like that:

• Delete workspace (#remove workspace)

• TODO: Learn how teams work in postman

• Choosing between collection variables vs. environment variables

NOTE: Environment variables always override collection variables.

• Important: Postman never read values form “Initial value” column ever.

• Inheriting authorization from authorization defined in collection settings

Beware Beware Beware that you must remove “Inherit Authorization” from the signin/login requests as shown in below screenshot otherwise your’ backend may intercept those requests badly. (WARNIN: In slasher it actually does).

• Setting variable at collection level:

var jsonData = pm.response.json();

// 1. setting in currently active environment (MOST COMMONLY NEEDED, Date: 28 May, 2023)
pm.environment.set("TOKEN1", jsonData.token);

// 2. setting collection variable
pm.collectionVariables.set("TOKEN1", jsonData.token);

// 3. setting globally
pm.globals.set("TOKEN1", jsonData.token);

• Thats how you set collection specific variables:

• Thats how you export a postman collection:

• There are three types of variables-

• To use a environment variable, make sure you have an active environment:

• Realistic Example of setting and using a global variable (global environment variable):

• Thats how you set a global variable with postman tests:

• Course video:
  • https://www.youtube.com/watch?v=juuhb3W8xT4
  • https://www.youtube.com/watch?v=VywxIQ2ZXw4

• Socket.io Server Requests

  Source: Official Postman Article - Click here

  

  

  • You can choose client version now:

  

  • Set url of socket now (connects automatically to: localhost:PORT/socket.io):

  

  • You can set authorization header with socket like that (even though browsers don’t allow setting headers for socket connections yet ~Eric Slasher Project Notes):

  

  • Listening to event and sending event (see next screenshot as well):

  

  

• How do we get the return value (Acknowledgement) from the event as we can see the return value of the event handler in the code:

  

• You can write documentation for a postman requets like that:

• In a request payload you can now write comments with // and /* */ format by adding that pre-script code

Source Stackoverflow Answer: Click here

// Strip JSON Comments
if (pm?.request?.body?.options?.raw?.language === 'json') {
    const rawData = pm.request.body.toString();
    const strippedData = rawData.replace(
        /\\"|"(?:\\"|[^"])*"|(\/\/.*|\/\*[\s\S]*?\*\/)/g,
        (m, g) => g ? "" : m
    );
    pm.request.body.update(JSON.stringify(JSON.parse(strippedData)));
}

// To set Content-Type again (see the original stackoverflow answer's comment section):
// pm.request.upsertHeader({key: 'Content-Type', value: 'application/json'});

• Also you can make use explicit comment section to make notes as well:

• Hidden Headers?

• Thats how you can use param variables (actually called path variables in postman)

  

• Set authorization “bearer token” header easily

• How to send file in http request

Click here

In slasher:

• We can fetch an image in postman as well: