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Contributing to langchaingo

First off, thanks for taking the time to contribute! ❤️ All types of contributions are encouraged and valued. See the Table of Contents for different ways to help and details about how this project handles them. Please make sure to read the relevant section before making your contribution. It will make it a lot easier for us maintainers and smooth out the experience for all involved. The community looks forward to your contributions. 🎉


Contributing to langchaingo

And if you like the project, but just dont have time to contribute, thats fine. There are other easy ways to support the project and show your appreciation, which we would also be very happy about:

  • Star the project
  • Tweet about it
  • Refer this project in your projects readme
  • Mention the project at local meetups and tell your friends/colleagues

Table of Contents


Table of Contents


Table of Contents


Code of Conduct

This project and everyone participating in it is governed by the langchaingo Code of Conduct. By participating, you are expected to uphold this code. Please report unacceptable behavior to travis.cline@gmail.com.


I Have a Question

If you want to ask a question, we assume that you have read the available Documentation.


I Have a Question

Before you ask a question, it is best to search for existing Issues that might help you. In case you have found a suitable issue and still need clarification, you can write your question in this issue. It is also advisable to search the internet for answers first. If you then still feel the need to ask a question and need clarification, we recommend the following:


I Have a Question

  • Provide as much context as you can about what youre running into.
  • Provide project and platform versions (nodejs, npm, etc), depending on what seems relevant. We will then take care of the issue as soon as possible.

I Want To Contribute

When contributing to this project, you must agree that you have authored 100% of the content, that you have the necessary rights to the content and that the content you contribute may be provided under the project license.


Reporting Bugs


Before Submitting a Bug Report

A good bug report shouldn't leave others needing to chase you up for more information. Therefore, we ask you to investigate carefully, collect information and describe the issue in detail in your report. Please complete the following steps in advance to help us fix any potential bug as fast as possible.

  • Make sure that you are using the latest version.

Before Submitting a Bug Report

  • Determine if your bug is really a bug and not an error on your side e.g. using incompatible environment components/versions (Make sure that you have read the documentation. If you are looking for support, you might want to check this section).

Before Submitting a Bug Report

  • To see if other users have experienced (and potentially already solved) the same issue you are having, check if there is not already a bug report existing for your bug or error in the bug tracker.
  • Also make sure to search the internet (including Stack Overflow) to see if users outside of the GitHub community have discussed the issue.

Before Submitting a Bug Report

  • Collect information about the bug:
    • Stack trace (Traceback)
    • OS, Platform and Version (Windows, Linux, macOS, x86, ARM)
    • Version of the interpreter, compiler, SDK, runtime environment, package manager, depending on what seems relevant.
    • Possibly your input and the output
    • Can you reliably reproduce the issue? And can you also reproduce it with older versions?

How Do I Submit a Good Bug Report?

You must never report security related issues, vulnerabilities or bugs including sensitive information to the issue tracker, or elsewhere in public. Instead sensitive bugs must be sent by email to travis.cline@gmail.com. <! You may add a PGP key to allow the messages to be sent encrypted as well. >


How Do I Submit a Good Bug Report?

We use GitHub issues to track bugs and errors. If you run into an issue with the project:

  • Open an Issue. (Since we cant be sure at this point whether it is a bug or not, we ask you not to talk about a bug yet and not to label the issue.)
  • Explain the behavior you would expect and the actual behavior.

How Do I Submit a Good Bug Report?

  • Please provide as much context as possible and describe the reproduction steps that someone else can follow to recreate the issue on their own. This usually includes your code. For good bug reports you should isolate the problem and create a reduced test case.
  • Provide the information you collected in the previous section. Once it's filed:
  • The project team will label the issue accordingly.

How Do I Submit a Good Bug Report?

  • A team member will try to reproduce the issue with your provided steps. If there are no reproduction steps or no obvious way to reproduce the issue, the team will ask you for those steps and mark the issue as needs-repro. Bugs with the needs-repro tag will not be addressed until they are reproduced.

How Do I Submit a Good Bug Report?

  • If the team is able to reproduce the issue, it will be marked needs-fix, as well as possibly other tags (such as critical), and the issue will be left to be implemented by someone.

Suggesting Enhancements

This section guides you through submitting an enhancement suggestion for langchaingo, including completely new features and minor improvements to existing functionality. Following these guidelines will help maintainers and the community to understand your suggestion and find related suggestions.


Before Submitting an Enhancement

  • Make sure that you are using the latest version.
  • Read the documentation carefully and find out if the functionality is already covered, maybe by an individual configuration.
  • Perform a search to see if the enhancement has already been suggested. If it has, add a comment to the existing issue instead of opening a new one.

Before Submitting an Enhancement

  • Find out whether your idea fits with the scope and aims of the project. Its up to you to make a strong case to convince the projects developers of the merits of this feature. Keep in mind that we want features that will be useful to the majority of our users and not just a small subset. If youre just targeting a minority of users, consider writing an add-on/plugin library.

How Do I Submit a Good Enhancement Suggestion?

Enhancement suggestions are tracked as GitHub issues.

  • Use a clear and descriptive title for the issue to identify the suggestion.
  • Provide a step-by-step description of the suggested enhancement in as many details as possible.
  • Describe the current behavior and explain which behavior you expected to see instead and why. At this point you can also tell which alternatives do not work for you.

How Do I Submit a Good Enhancement Suggestion?

  • You may want to include screenshots and animated GIFs which help you demonstrate the steps or point out the part which the suggestion is related to. You can use this tool to record GIFs on macOS and Windows, and this tool or this tool on Linux. <! this should only be included if the project has a GUI >

How Do I Submit a Good Enhancement Suggestion?

  • Explain why this enhancement would be useful to most langchaingo users. You may also want to point out the other projects that solved it better and which could serve as inspiration.
  • We strive to conceptually align with the Python and TypeScript versions of Langchain. Please link/reference the associated concepts in those codebases when introducing a new concept.

How Do I Submit a Good Enhancement Suggestion?


Your First Code Contribution


Make Changes


Make changes in the UI

Click Make a contribution at the bottom of any docs page to make small changes such as a typo, sentence fix, or a broken link. This takes you to the .md file where you can make your changes and create a pull request for a review.


Make changes locally
  1. Fork the repository.

Make changes locally
  • Using the command line:
    • Fork the repo so that you can make your changes without affecting the original project until youre ready to merge them.
  1. Install or make sure Golang is updated.
  2. Create a working branch and start with your changes!

Commit your update

Commit the changes once you are happy with them. Don't forget to self-review to speed up the review process.


Pull Request

When you're finished with the changes, create a pull request, also known as a PR.

  • Name your Pull Request title clearly, concisely, and prefixed with the name of primarily affected package you changed according to Go Contribute Guideline. (such as memory: added interfaces or util: added helpers)

Pull Request

  • We strive to conceptually align with the Python and TypeScript versions of Langchain. Please link/reference the associated concepts in those codebases when introducing a new concept.
  • Fill the “Ready for review” template so that we can review your PR. This template helps reviewers understand your changes as well as the purpose of your pull request.

Pull Request


Pull Request

  • Enable the checkbox to allow maintainer edits so the branch can be updated for a merge. Once you submit your PR, a team member will review your proposal. We may ask questions or request additional information.

Pull Request

  • We may ask for changes to be made before a PR can be merged, either using suggested changes or pull request comments. You can apply suggested changes directly through the UI. You can make any other changes in your fork, then commit them to your branch.

Pull Request

  • As you update your PR and apply changes, mark each conversation as resolved.
  • If you run into any merge issues, checkout this git tutorial to help you resolve merge conflicts and other issues.

Your PR is merged!

Congratulations :tada:🎉 The langchaingo team thanks you . Once your PR is merged, your contributions will be publicly visible on the repository contributors list. Now that you are part of the community!