Скачать или смотреть How to Increase Timestamps in Postman After Each Request

Learn how to dynamically `increase timestamps` in Postman requests using JavaScript and the Moment.js library. This guide offers step-by-step instructions.
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How to Increase Timestamps in Postman After Each Request

Are you struggling with incrementing timestamps in Postman after each API request? If you're using Postman for API testing, you may want to automate timestamp adjustments to ensure your requests use relevant time data. This post will guide you in using the Moment.js library within Postman to increase your timestamps effectively.

Understanding the Requirement

In some cases, you may want to start from a specific timestamp and then increment this timestamp by a certain amount (e.g., four hours) every time you send a request. This can be particularly useful for APIs that require timestamps for actions such as bookings or scheduled tasks. Initially, the goal is to increment two timestamps, fromTime and toTime, by four hours on each request.

For example:

First Request:

fromTime: 2020-01-01T00:00:00.746Z

toTime: 2020-01-01T04:00:00.746Z

Second Request:

fromTime: 2020-01-01T04:00:00.746Z

toTime: 2020-01-01T08:00:00.746Z

Setting Up Your Environment Variables

To achieve this, you’ll need to set up your environment variables in Postman correctly. Here is a step-by-step guideline:

Step 1: Initialize Your Variables

Start by initializing your fromTime variable with your desired start timestamp. This can be done in the Pre-request Script section.

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Step 2: Increment the toTime Variable

In the same Pre-request Script, we need to access the current fromTime, add four hours to it, and then set the toTime accordingly. Here’s how you can do this with Moment.js:

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Step 3: Update fromTime in Tests

After you have run your request, you may want to set the new fromTime variable based on the response data. This is done in the Tests tab of your request:

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Final Code Summary

Here’s the complete JavaScript code you’ll need to add in your Postman under the Pre-request Script and Tests sections:

Pre-request Script

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Tests

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Conclusion

Using the steps outlined above, you can automate the increment of timestamps in Postman, making your API testing more streamlined and efficient. By leveraging the power of JavaScript and Moment.js, you can manage timestamps dynamically, ensuring that each request reflects the correct timing needed for API functionality.

With this simple method, you’re now equipped to efficiently increase timestamps after every API request. Happy testing!