Vibe utilizes a V libcurl wrapper to provide an easy-access layer for fast and reliable requests.
Installation
Install via v
cli
-
From source
v install --git https://github.com/tobealive/vibe
import vibe
-
As vpm module
v install tobealive.vibe
import tobealive.vibe
Usage examples
GET request
import vibe
// Default request
resp := vibe.get('https://hacker-news.firebaseio.com/v0/item/1.json')!
println(resp.body)
// Custom request
request := vibe.Request{
headers: {
.user_agent: 'YourCustomUserAgent/v0.0.1'
}
}
resp2 := request.get('https://hacker-news.firebaseio.com/v0/item/1.json')!
println(resp2.body)
POST request
import vibe
import time
req := vibe.Request{
headers: {
.user_agent: 'YourCustomUserAgent/v0.0.1'
.content_type: 'application/json; charset=utf-8'
}
timeout: time.second * 10
}
resp := req.post('https://httpbin.org/post', '{"msg":"hello from vibe"}')!
println(resp)
Download
import vibe
vibe.download_file('https://github.com/vlang/v/releases/download/weekly.2023.23/v_linux.zip',
'v_linux.zip')!
More examples
GET Slice request
If optimizing speed is of concern when querying pages with large response bodies, and you know you
only need a portion of them, you can perform a get_slice
request.
// Sends a GET request to the specified `url` and returns a slice of the response content.
// Allocation of the received response as a vstring is postponed until the `start` byte position is reached.
// The content is returned as soon as the slice reaches its `max_size` (offset from `start`)
// - `max_size` can be `none` to return the remainder from the start.
pub fn (req Request) get_slice(url string, start usize, size ?usize) !Response
import vibe
import net.html
resp := vibe.get_slice('https://docs.vosca.dev/advanced-concepts/v-and-c.html', 65_000,
10_000)!
selector := html.parse(resp.body).get_tags_by_class_name('language-vmod')[0]
println(selector.text())
Download with progress
// Downloads a document from the specified `url` and saves it to the specified `file_path`.
// `download` must implement a `progress(pos usize, size usize)`, and a `finish()` method.
pub fn (req Request) download_file_with_progress(url string, file_path string, download Download) !Response
import vibe
import os
struct Download {}
fn (dl Download) progress(pos u64, size u64) {
print('\rDownloading... ${f64(pos) / size * 100:.2f}%')
os.flush()
}
fn (dl Download) finish() {
println('\nDownload completed.')
}
mut dl := Download{}
vibe.download_file_with_progress('https://github.com/vlang/v/releases/download/weekly.2023.23/v_linux.zip',
'v_linux.zip', mut dl)!
Persistent Cookie
Share cookies between requests / sessions with a curl cookie jar file.
The demo below does not provide real authentication data, for a "full" use-case scenario, change the payload data and requested URLs to actual addresses that require authentication.
import vibe
import os
cookie_jar := './demo_cookie'
req := vibe.Request{
headers: {
.content_type: 'application/json; charset=utf-8'
}
cookie_jar: cookie_jar
}
// Login and save cookies to curl cookie file.
req.post('https://api.yourdomain.com/v1/login', '{"username":"yourname","password":"password"}')!
// Use the `cookie_file` in subsequent sessions to access endpoints that require the authentication above.
req2 := vibe.Request{
headers: {
.content_type: 'application/json; charset=utf-8'
}
cookie_file: cookie_jar
}
resp := req2.get('https://api.yourdomain.com/v1/protected_page')!
// ... use resp
// Remove the cookie file or keep it for later usage.
os.rm(cookie_jar)!
Further information and upcoming features
Vibe is in early development. Additional features will be added based on personal projects and sensible community needs.
Planned
- Download with progress
- Custom headers
- curl Proxy support
- SSL options
- Extend HTTP methods
Considered
- Additional curl-compatible formats beyond HTTP.
- Expose response streams / io.Reader implementation
Given that the project is being worked on in spare time, please excuse potential delays in replying
due to limited time resources.
Contributions like bug