Create an Example for "Create File" functionality

[ivaylogarnev-limechain]

🆕🐥 First Timers Only

This issue is reserved for people who have never contributed to Hedera or any open source project in general.
We know that creating a pull request (PR) is a major barrier for new contributors.
The goal of this issue and all other issues labeled by 'good first issue' is to help you make your first contribution to Hedera.

👾 Description of the issue

Problem

The Hedera Java SDK includes a simple but essential example, CreateFileExample.java, which demonstrates how to create, manage, and delete a file on the Hedera network. This example showcases a key functionality of the Hedera File Service, helping developers understand how to interact with files on Hedera.

However, there is no equivalent example available in the Hedera JavaScript SDK. Developers using the JavaScript SDK would benefit from a similar example that guides them through the process of creating a file, setting the file's contents, and managing the file lifecycle (including deletion).

Solution

Below is a link to the existing Java implementation, which can serve as a basis for creating the JavaScript example:
CreateFileExample.java

Steps to Implement

1. Client and operator setup: Set up the Hedera Client in the JavaScript SDK using setOperator.
2. File creation:
   • Use FileCreateTransaction to create a new file, specifying the operator's public key as the owner.
   • Set the file contents (e.g., a string or byte array).
   • Set an appropriate transaction fee (e.g., 2 Hbars).
3. File deletion: Demonstrate how to delete the created file using FileDeleteTransaction.
4. Logging and output: Include console logs to show the progress of file creation, retrieval of the file ID, and deletion for better user understanding.

Expected Outcome

The new example will help developers using the JavaScript SDK understand how to create, manage, and delete files using the Hedera File Service. It will also highlight key SDK features such as handling file contents, associating keys with files, and managing transaction fees.

By providing this JavaScript example, we align the JavaScript SDK with the Java SDK in terms of documentation and usability, making it easier for developers to build Hedera-based applications.

📋 Step by step guide to do a contribution

If you have never contributed to an open source project at GitHub, the following step-by-step guide will introduce you to the workflow. More information and concrete samples for shell commands for each step can be found in our CONTRIBUTING.md file.
A more detailed general documentation of the GitHub PR workflow can be found here.

• Claim this issue: Comment below that you are interested in working on the issue
• Wait for assignment: A community member with the given rights will add you as an assignee of the issue
• Fork the repository: You can do that in GitHub (by simply clicking the 'fork' button).
• Check out the forked repository
• Create a feature branch for the issue. We do not have a hard naming definition for branches but it is best practice to prefix the branch name with the issue id.
• Solve the issue in your branch.
• Commit your changes: Here, it is needed to add sign-off information to the commit to accept the "Developer Certificate of Origin" (https://developercertificate.org). More details can be found in our CONTRIBUTING.md
• Start a Pull Request (PR): We have a pattern for naming pull requests that a GitHub Action checks. We use that pattern to support the creation of automatic release notes.
• Check GitHub Actions: Several GitHub Actions will be triggered automatically for each PR. If a GitHub Action fails and you do not understand the cause of that error do not hesitate to add a comment to the PR and ask the Hedera developer community for support.
• Wait for reviews: Members of the Hedera developer community will review your PR. If a reviewer finds any missing pieces or a problem, he or she will start a discussion with you and describe the next steps for solving the problem.
• You did it 🎉: We will merge the fix in the develop branch. Thanks for being part of the Hedera community as an open-source contributor ❤️

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🤔 Additional Information

If you have any questions, just ask us directly in this issue by adding a comment. You can join our community chat at Discord. A general manual about open-source contributions can be found here.

[vickywane]

Hi @hendrikebbers ,

I would love to work on this.

Can you please assign it to me?

[b-l-u-e]

Hello @hendrikebbers please assign me this issue if it's still hasn't been worked on

[hendrikebbers]

@vickywane are you working on the issue? Otherwise I will assign it to @b-l-u-e

[vickywane]

Hello @hendrikebbers

I am working on this issue.

I will have a PR up for it really soon.

[hendrikebbers]

awesome!

[b-l-u-e]

Is this done? @hendrikebbers