Skip to content

fix: a2asrv jsonrpc Content-Type#265

Merged
yarolegovich merged 3 commits intoa2aproject:mainfrom
DanielvNiek:main
Mar 9, 2026
Merged

fix: a2asrv jsonrpc Content-Type#265
yarolegovich merged 3 commits intoa2aproject:mainfrom
DanielvNiek:main

Conversation

@DanielvNiek
Copy link
Copy Markdown
Contributor

Fixes #264

@gemini-code-assist
Copy link
Copy Markdown
Contributor

Summary of Changes

Hello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a reported issue where JSON-RPC responses were not consistently setting the Content-Type header. The change ensures that all successful JSON-RPC responses include the "application/json" header, resolving a bug and improving the robustness of the API for clients.

Highlights

  • JSON-RPC Response Header: Ensured that JSON-RPC responses explicitly set the Content-Type header to "application/json" to improve client compatibility and adherence to standards.
Changelog
  • a2asrv/jsonrpc.go
    • Added the "Content-Type: application/json" header to HTTP responses for successful JSON-RPC calls.
    • Removed an unnecessary blank line within the onSendMessageStream function.
Activity
  • No specific activity (comments, reviews, progress) has been recorded for this pull request yet.
Using Gemini Code Assist

The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.

Invoking Gemini

You can request assistance from Gemini at any point by creating a comment using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands on the current page.

Feature Command Description
Code Review /gemini review Performs a code review for the current pull request in its current state.
Pull Request Summary /gemini summary Provides a summary of the current pull request in its current state.
Comment @gemini-code-assist Responds in comments when explicitly tagged, both in pull request comments and review comments.
Help /gemini help Displays a list of available commands.

Customization

To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.

Limitations & Feedback

Gemini Code Assist may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with 👍 and 👎 on @gemini-code-assist comments. If you're interested in giving your feedback about your experience with Gemini Code Assist for Github and other Google products, sign up here.

You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.

Footnotes

  1. Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution.

Copy link
Copy Markdown
Contributor

@gemini-code-assist gemini-code-assist bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Code Review

This pull request correctly adds the Content-Type: application/json header for successful JSON-RPC responses. My review includes a suggestion to use a predefined constant for the content type string to improve maintainability. I also noticed that error responses generated via writeJSONRPCError are still missing this header. While this is outside the changed lines of this PR, it would be good to address this in a follow-up to ensure all JSON responses are compliant.

}

if result != nil {
rw.Header().Set("Content-Type", "application/json")
Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

medium

To improve maintainability and avoid magic strings, please use the jsonrpc.ContentJSON constant, which is already defined for this purpose in the jsonrpc package.

Suggested change
rw.Header().Set("Content-Type", "application/json")
rw.Header().Set("Content-Type", jsonrpc.ContentJSON)

}

if result != nil {
rw.Header().Set("Content-Type", "application/json")
Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

thanks for reporting and submitting the fix, let's please also add this line to writeJSONRPCError

@yarolegovich yarolegovich merged commit 2568a46 into a2aproject:main Mar 9, 2026
4 checks passed
yarolegovich pushed a commit that referenced this pull request Mar 17, 2026
🤖 I have created a release *beep* *boop*
---


##
[1.0.0](v1.0.0-alpha.3...v1.0.0)
(2026-03-17)


### Features

* implement the new rest error handling
([#282](#282))
([a3bda30](a3bda30))
* use v2 suffix for module ID and provide compat support
([#270](#270))
([dd1b6ba](dd1b6ba)),
closes [#250](#250)


### Bug Fixes

* a2asrv jsonrpc Content-Type
([#265](#265))
([2568a46](2568a46))
* bugs before going from alpha
([#279](#279))
([b1f055c](b1f055c))
* GetTaskRequest nil pointer assignment check
([#258](#258))
([440bb79](440bb79))
* inject headers into service params
([#277](#277))
([d33f3bd](d33f3bd)),
closes [#275](#275)
* propagate cancelation signal using task store
([#272](#272))
([5e1d462](5e1d462)),
closes [#245](#245)
* regenerate spec and fix returnImmediately
([#284](#284))
([2eee0b9](2eee0b9))
* task modified after save
([#266](#266))
([c15febe](c15febe))
* taskupdater result mutable
([#274](#274))
([6038d92](6038d92))
* update pushsender
([#256](#256))
([5f7a594](5f7a594))
* use enum values as in the spec
([#261](#261))
([eb98981](eb98981)),
closes [#251](#251)


### Documentation

* **a2asrv:** add Example_* test functions for pkg.go.dev documentation
([#262](#262))
([7888e37](7888e37))
* add example tests a2a
([#240](#240))
([4fe08a9](4fe08a9))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

[Bug]: A2A jsonrpc returning Content-Type: text/plain i.s.o application/json

2 participants