embedding social medial posts

.cargo/config.toml

@@ -0,0 +1,3 @@
+[alias]
+build-wasm = "build --target wasm32-wasi"
+build-native = "build"

Cargo.toml

@@ -9,4 +9,7 @@ license-file = "LICENSE.txt"
 handlebars = {version = "4.1", features = ["dir_source", "script_helper"]}
 serde_json = "1.0"
 chrono = {version = "0.4", features = ["serde"]}
-rand = "0.8.5"
+rand = "0.8.5"
+http                   = "0.2"
+wasi-experimental-http = "0.7.0"
+serde = { version = "1.0", features = ["derive"] }

src/gist.rs

@@ -0,0 +1,10 @@
+use handlebars::{handlebars_helper, Handlebars};
+
+pub fn addhelpers(x: &mut Handlebars) {
+    handlebars_helper!(gist: |user: String, id: String| {
+        let s = format!(r#"<script type="application/javascript" src="https://gist.github.com/{}/{}.js"></script>"#,  user, id);
+        s
+    });
+
+    x.register_helper("gist", Box::new(gist));
+}

src/lib.rs

@@ -1,11 +1,15 @@
 use handlebars::Handlebars;
 
-pub mod strings;
-pub mod math;
 pub mod date;
+pub mod gist;
+pub mod math;
+pub mod strings;
+pub mod tweet;
 
 pub fn addhelpers(x: &mut Handlebars) {
     strings::addhelpers(x);
     math::addhelpers(x);
-    date::addhelpers(x)
-}
+    date::addhelpers(x);
+    tweet::addhelpers(x);
+    gist::addhelpers(x);
+}

src/tweet.rs

@@ -0,0 +1,26 @@
+use handlebars::{handlebars_helper, Handlebars};
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize, Debug)]
+struct Publish {
+    html: String,
+}
+
+pub fn addhelpers(x: &mut Handlebars) {
+    handlebars_helper!(tweet: |user: String, id: String| {
+        let url = format!("https://publish.twitter.com/oembed?url=https://twitter.com/{}/status/{}", user, id);
+        let req = http::request::Builder::new().uri(&url).body(None).unwrap();
+        let mut res = wasi_experimental_http::request(req).expect("cannot make get request");
+
+        let mut html = "".to_string();
+        if res.status_code == 200 {
+            let str = std::str::from_utf8(&res.body_read_all().unwrap()).unwrap().to_string();
+            let deserialized: Publish = serde_json::from_str(&str).unwrap();
+            html = deserialized.html.to_string()
+        }
+
+        html
+    });
+
+    x.register_helper("tweet", Box::new(tweet));
+}