Created
January 15, 2024 22:20
-
-
Save DavZim/c01511cce2db14efbd12a34c18d3a93d to your computer and use it in GitHub Desktop.
R Plumber + HTMX
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #* @assets ./public / | |
| list() | |
| n_clicked <- 0 | |
| #* @post /clicked | |
| #* @serializer html | |
| function() { | |
| n_clicked <<- n_clicked + 1 | |
| paste0("Clicked <b>", n_clicked, "</b>\n") | |
| } | |
| #* @get /plot | |
| #* @serializer html | |
| function() { | |
| png(filename = "plot.png", width = 400, height = 350) | |
| plot(1:10, cumsum(rnorm(10))) | |
| dev.off() | |
| Sys.sleep(1) | |
| enc <- base64enc::base64encode("plot.png") | |
| unlink("plot.png") | |
| paste0("<img src='data:image/png;base64,", enc, "' style='height:80%;width:80%'/>") | |
| } | |
| #* @get /plot2 | |
| #* @serializer html | |
| function() { | |
| png(filename = "plot2.png", width = 400, height = 350) | |
| ir <- iris[sample.int(nrow(iris), 10), ] | |
| plot( | |
| x = ir$Petal.Length, | |
| y = ir$Petal.Width, | |
| cex = 3, | |
| pch = 21, | |
| main = "Petal Length vs. Petal Width", | |
| ) | |
| dev.off() | |
| enc <- base64enc::base64encode("plot2.png") | |
| unlink("plot2.png") | |
| paste0("<img src='data:image/png;base64,", enc, "' style='height:80%;width:80%'/>") | |
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!---public/index.html---> | |
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0" /> | |
| <meta http-equiv="X-UA-Compatible" content="ie=edge" /> | |
| <script src="https://unpkg.com/[email protected]"></script> | |
| </head> | |
| <body> | |
| <h1>Hello World using plumber and HTMX from R</h1> | |
| <div style="display:flex;flex-direction: row;align-items: flex-start; gap:20px;"> | |
| <button hx-post="/clicked" hx-swap="innerHTML"> | |
| Click Me | |
| </button> | |
| <div> | |
| <p>The following plot is loaded automagically</p> | |
| <div | |
| hx-get="/plot" | |
| hx-trigger="load" | |
| style="height:400px;width:400px"> | |
| "Loading plot..." | |
| </div> | |
| </div> | |
| <div> | |
| <p>The following plot is loaded/updated on button click</p> | |
| <button | |
| hx-get="/plot2" | |
| hx-swap="innerHTML show:top" | |
| hx-target="#target-plot"> | |
| Update Plot | |
| </button> | |
| <div | |
| id="target-plot" | |
| style="height:400px;width:400px;background-color:antiquewhite;display:flex;align-items: center;justify-content: center;"></div> | |
| </div> | |
| </div> | |
| </body> | |
| </html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| library(plumber) | |
| pr("plumber.R") |> | |
| pr_hook("preroute", function(req) { | |
| cat(sprintf("Routing a request for %s %s\n", req$REQUEST_METHOD, req$PATH_INFO)) | |
| }) |> | |
| pr_run(port = 8080) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment