Running collections via CLI in Postman - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to run a Postman collection using Newman CLI.

Postman

newman run [1].json

Drag options to blanks, or click blank then click option'

Arun

Bcollection

Ctest

Dscript

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'run' or 'test' instead of the collection file name.

Omitting the .json extension.

The command newman run collection.json runs the Postman collection file named collection.json.

2fill in blank

medium

Complete the command to specify an environment file when running a collection with Newman.

Postman

newman run collection.json --environment [1].json

Drag options to blanks, or click blank then click option'

Aenv

Bdata

Cconfig

Dsettings

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect file names like 'data.json' or 'config.json'.

Forgetting the --environment flag.

The --environment option is followed by the environment file name, commonly named env.json.

3fill in blank

hard

Fix the error in the command to export the run report in JSON format.

Postman

newman run collection.json --reporters json --reporter-json-export [1]

Drag options to blanks, or click blank then click option'

Areport.json

Breport.txt

Creport.csv

Dreport.html

Attempts:

3 left

💡 Hint

Common Mistakes

Using a .txt or .csv extension which does not match the JSON reporter.

Omitting the --reporter-json-export flag.

The report file must have a .json extension to match the JSON reporter format.

4fill in blank

hard

Fill both blanks to run a collection with a delay of 500ms between requests and disable SSL verification.

Postman

newman run collection.json --delay-request [1] --insecure [2]

Drag options to blanks, or click blank then click option'

A500

Btrue

Cfalse

D1000

Attempts:

3 left

💡 Hint

Common Mistakes

Using delay values like 1000 instead of 500.

Setting --insecure to false or omitting it.

The --delay-request option sets the delay in milliseconds (500ms here). The --insecure flag disables SSL verification and is set to true.

5fill in blank

hard

Fill all three blanks to run a collection with a data file, specify environment, and export an HTML report.

Postman

newman run [1].json --environment [2].json --iteration-data [3].json --reporters html --reporter-html-export report.html

Drag options to blanks, or click blank then click option'

Acollection

Benv

Cdata

Dconfig

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up file names or extensions.

Omitting the --iteration-data flag.

The collection file is named 'collection.json', environment file 'env.json', and data file 'data.json'. The HTML reporter exports to 'report.html'.

Practice

1. What is the primary command line tool used to run Postman collections via CLI?

easy

A. npm

B. newman

C. curl

D. postman-cli

Solution

1. Step 1: Identify the official CLI tool for Postman collections

   Newman is the official command line tool designed to run Postman collections.

2. Step 2: Differentiate from other tools

   npm is a package manager, curl is a general HTTP client, and postman-cli is not an official tool.

3. Final Answer:

   newman -> Option B

4. Quick Check:

   Postman CLI tool = newman [OK]

Hint: Remember: Newman runs Postman collections in CLI [OK]

Common Mistakes:

• Confusing npm with the CLI runner
• Using curl as a Postman collection runner
• Assuming postman-cli is official

2. Which of the following is the correct syntax to run a Postman collection file named test_collection.json using Newman?

easy

A. newman execute test_collection.json

B. newman start test_collection.json

C. newman run test_collection.json

D. newman launch test_collection.json

Solution

1. Step 1: Recall the Newman command to run collections

   The correct command is newman run <collection-file>.

2. Step 2: Verify the options

   Options like execute, start, or launch are not valid Newman commands.

3. Final Answer:

   newman run test_collection.json -> Option C

4. Quick Check:

   Command syntax = newman run [OK]

Hint: Use 'newman run' to execute collections [OK]

Common Mistakes:

• Using 'execute' instead of 'run'
• Trying 'start' or 'launch' commands
• Omitting the 'run' keyword

3. Given the command newman run my_collection.json -e my_environment.json --delay-request 1000, what effect does the --delay-request 1000 option have?

medium

A. Limits the collection run to 1000 requests total

B. Sets the timeout for each request to 1000 milliseconds

C. Runs the collection 1000 times

D. Delays each request by 1000 milliseconds between executions

Solution

1. Step 1: Understand the --delay-request option

   This option adds a delay between each request in the collection, measured in milliseconds.

2. Step 2: Interpret the value 1000

   1000 milliseconds equals 1 second delay between requests.

3. Final Answer:

   Delays each request by 1000 milliseconds between executions -> Option D

4. Quick Check:

   --delay-request = wait time between requests [OK]

Hint: Delay means wait time between requests in ms [OK]

Common Mistakes:

• Confusing delay with timeout
• Thinking it repeats the collection
• Assuming it limits total requests

4. You run the command newman run collection.json -e env.json --reporters cli,html but get an error saying Unknown reporter: html. What is the most likely cause?

medium

A. The HTML reporter is not installed or supported by Newman

B. The environment file is invalid

C. The collection file is missing

D. The CLI reporter cannot be combined with others

Solution

1. Step 1: Analyze the error message

   The error states 'Unknown reporter: html', meaning Newman does not recognize the 'html' reporter.

2. Step 2: Understand reporter support

   Newman supports some reporters by default; others require installation or are unsupported.

3. Final Answer:

   The HTML reporter is not installed or supported by Newman -> Option A

4. Quick Check:

   Unknown reporter means unsupported or missing plugin [OK]

Hint: Check reporter names and installation before running [OK]

Common Mistakes:

• Blaming environment or collection files
• Assuming CLI reporter conflicts
• Ignoring reporter installation requirements

5. You want to run a Postman collection multiple times with different data sets from a CSV file named data.csv. Which Newman command correctly achieves this?

hard

A. newman run collection.json -d data.csv

B. newman run collection.json --data data.csv

C. newman run collection.json -e data.csv

D. newman run collection.json --env data.csv

Solution

1. Step 1: Identify the option for data files in Newman

   The -d or --iteration-data option is used to specify a data file for iteration.

2. Step 2: Differentiate environment and data options

   -e or --env is for environment files, not data files.

3. Final Answer:

   newman run collection.json -d data.csv -> Option A

4. Quick Check:

   Use -d for data files in Newman [OK]

Hint: Use -d to specify data file for iterations [OK]

Common Mistakes:

• Using -e or --env for data files
• Using --data, an invalid flag
• Confusing environment and data files