# HTTP Client Improvements for Extension API
This PR enhances the HTTP client functionality in the Zed extension API,
providing more control over requests and allowing for streaming
responses.
## Key Changes
1. Extended `HttpRequest` struct:
- Added `method` field to specify HTTP method
- Added `headers` field for custom headers
- Added optional `body` field for request payload
2. Introduced `HttpMethod` enum for supported HTTP methods
3. Updated `HttpResponse` struct:
- Added `headers` field to access response headers
- Changed `body` type from `String` to `Vec<u8>` for binary data support
4. Added streaming support:
- New `fetch_stream` function to get a response stream
- Introduced `HttpResponseStream` resource for chunked reading
5. Updated internal implementations to support these new features
6. Modified the Gleam extension to use the new API structure
## Motivation
These changes provide extension developers with more flexibility and
control over HTTP requests. The streaming support is particularly useful
for handling large responses efficiently or ideally streaming into the
UI.
## Testing
- [x] Updated existing tests
- [ ] Added new tests for streaming functionality
## Next Steps
- Consider adding more comprehensive examples in the documentation
- Evaluate performance impact of streaming for large responses
Please review and let me know if any adjustments are needed.
Release Notes:
- N/A
---------
Co-authored-by: Marshall Bowers <elliott.codes@gmail.com>
This PR updates the extension API to make the `worktree` argument to
`run_slash_command` optional.
We may not always have a worktree, and not all slash commands need them,
so by making it optional we can allow individual slash commands to
decide what to do when there is no worktree.
Release Notes:
- N/A
This PR updates the extension API to use structured slash command
completions instead of plain strings.
This allows slash commands defined in extensions to take advantage of
the improvements made in #13876.
Release Notes:
- N/A
This PR adds a new `fetch` function to the `zed_extension_api` to allow
fetching a URL through the Wasm host.
Currently we only support GET requests and return the response body as a
string.
Release Notes:
- N/A
This PR extends the interface for slash commands defined in extensions
to have them return `SlashCommandOutput`.
This allows for slash commands to return multiple output sections for a
single piece of generated text.
Note that we don't allow specifying the icon to display in the
placeholder, as we don't want to commit to that in our API at the
moment.
Release Notes:
- N/A
- Confirming a completion now runs the command immediately
- Hitting `enter` on a line with a command now runs it
- The output of commands gets folded away and replaced with a custom
placeholder
- Eliminated ambient context
<img width="1588" alt="image"
src="https://github.com/zed-industries/zed/assets/482957/b1927a45-52d6-4634-acc9-2ee539c1d89a">
Release Notes:
- N/A
---------
Co-authored-by: Nathan Sobo <nathan@zed.dev>
This PR adds initial support for defining slash commands for the
Assistant from extensions.
Slash commands are defined in an extension's `extension.toml`:
```toml
[slash_commands.gleam-project]
description = "Returns information about the current Gleam project."
requires_argument = false
```
and then executed via the `run_slash_command` method on the `Extension`
trait:
```rs
impl Extension for GleamExtension {
// ...
fn run_slash_command(
&self,
command: SlashCommand,
_argument: Option<String>,
worktree: &zed::Worktree,
) -> Result<Option<String>, String> {
match command.name.as_str() {
"gleam-project" => Ok(Some("Yayyy".to_string())),
command => Err(format!("unknown slash command: \"{command}\"")),
}
}
}
```
Release Notes:
- N/A
This PR adds a new `github_release_by_tag_name` method to the
`zed_extension_api` to allow for retrieving a GitHub release by its tag
name.
Release Notes:
- N/A
This PR forks a new version of the `zed_extension_api` in preparation
for some upcoming changes that require breaking changes to the WIT.
Release Notes:
- N/A
---------
Co-authored-by: Max <max@zed.dev>
