Support all verbs

Author: soedirgo

src/builder.rs

@@ -5,21 +5,48 @@ pub struct Builder {
     url: String,
     queries: Vec<(String, String)>,
     headers: Vec<(String, String)>,
+    body: Option<String>,
 }
 
 impl Builder {
+    // TODO: Schema
     pub fn new(url: &str) -> Self {
         Builder {
             method: None,
             url: url.to_string(),
             queries: Vec::new(),
             headers: Vec::new(),
+            body: None,
         }
     }
 
     pub fn select(mut self, column: &str) -> Self {
         self.method = Some(Method::GET);
-        self.queries.push(("select".to_string(), column.to_string()));
+        let column = column.chars().filter(|c| !c.is_whitespace()).collect();
+        self.queries.push(("select".to_string(), column));
+        self
+    }
+
+    // TODO: Write-only tables
+    // TODO: UPSERT
+    // TODO: URL-encoded payload
+    pub fn insert(mut self, body: &str) -> Self {
+        self.method = Some(Method::POST);
+        self.headers.push(("Prefer".to_string(), "return=representation".to_string()));
+        self.body = Some(body.to_string());
+        self
+    }
+
+    pub fn update(mut self, body: &str) -> Self {
+        self.method = Some(Method::PATCH);
+        self.headers.push(("Prefer".to_string(), "return=representation".to_string()));
+        self.body = Some(body.to_string());
+        self
+    }
+
+    pub fn delete(mut self) -> Self {
+        self.method = Some(Method::DELETE);
+        self.headers.push(("Prefer".to_string(), "return=representation".to_string()));
         self
     }
 
@@ -32,6 +59,9 @@ impl Builder {
             req = req.header(k, v);
         }
         req = req.query(&self.queries);
+        if let Some(body) = self.body {
+            req = req.body(body);
+        }
 
         let resp = req.send()
            .await?;