meetup(find_upcoming_events): Draft of request to Meetup API

Set up the code to make a request to the Meetup API. Still needs an API
key, and we need to call the function correctly in `write_feed`.

2 files changed, 40 insertions, 2 deletions

diff --git a/meetup/src/event.rs b/meetup/src/event.rs
index ebd3174..615403e 100644
--- a/meetup/src/event.rs
+++ b/meetup/src/event.rs
@@ -1,5 +1,8 @@
+use reqwest;
 use serde_json;
 
+use std::error::Error;
+
 
 #[derive(Debug, Deserialize, PartialEq)]
 pub struct Event {
@@ -12,10 +15,44 @@ pub struct Event {
 }
 
 
-pub fn find_upcoming_events() -> Result<Vec<Event>, serde_json::Error> {
+const MEETUP_BASE_URL: &'static str = "https://api.meetup.com";
+
+// lat
+// lon
+// order 'time'
+// [radius]
+// end_date_range
+// [page]
+pub fn find_upcoming_events(
+    latitude: String,
+    longitude: String,
+    end_date_range: String,
+    radius: Option<String>,
+    page: Option<String>,
+) -> Result<Vec<Event>, Box<Error>> {
     let json = include_str!("../testdata/meetup--find-upcoming_events.json").to_owned();
 
-    parse_json(json)
+    let mut params = vec![
+        ("lat", latitude),
+        ("lon", longitude),
+        ("end_date_range", end_date_range),
+        ("order", "time".to_owned()),
+    ];
+
+    if let Some(r) = radius {
+        params.push(("radius", r))
+    }
+
+    if let Some(p) = page {
+        params.push(("page", p))
+    }
+
+    let client = reqwest::Client::new();
+    client.get(&format!("{}{}", MEETUP_BASE_URL, "/find/upcoming_events"))
+        .query(&params)
+        .send()?;
+
+    Ok(parse_json(json)?)
 }
 
 
diff --git a/meetup/src/lib.rs b/meetup/src/lib.rs
index 39def21..cd98d9e 100644
--- a/meetup/src/lib.rs
+++ b/meetup/src/lib.rs
@@ -1,3 +1,4 @@
+extern crate reqwest;
 extern crate serde;
 
 #[macro_use]