Created
June 19, 2019 00:05
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YouTube Search with Go / GoLang Server. Client sends url query param "q" to server. Server searches YouTube API for videos matching q. Server decodes, does "anything", then responds to client with JSON.
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| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <title>YouTube Search Example</title> | |
| <meta name="description" content="YouTube Search Example"> | |
| <meta name="author" content="Matt Lockyer"> | |
| </head> | |
| <body> | |
| <input type="text" id="q" placeholder="Search YouTube" /> | |
| <br /> | |
| <button id="search"> | |
| Search | |
| </button> | |
| <script> | |
| const ge = (id) => document.getElementById(id) | |
| window.onload = () => { | |
| ge('search').onclick = async() => { | |
| const q = ge('q').value | |
| console.log("query", q) | |
| const res = await fetch('http://localhost:8080/search?q=' + q, { | |
| method: 'GET', mode: "cors", | |
| }).then((res) => res.json()) | |
| console.log(res) | |
| } | |
| } | |
| </script> | |
| </body> | |
| </html> |
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| package main | |
| import ( | |
| "encoding/json" | |
| "net/http" | |
| ) | |
| /******************************** | |
| YouTube Search with Go / GoLang Server. | |
| Client sends url query param "q" to server. | |
| Server searches YouTube API for videos matching q. | |
| Server decodes, does "anything", then responds to client with JSON. | |
| ********************************/ | |
| var apiKey string = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" | |
| type msi = map[string]interface{} | |
| func search(w http.ResponseWriter, r *http.Request) { | |
| // Read body | |
| q, ok := r.URL.Query()["q"] | |
| if !ok || len(q[0]) < 1 { | |
| http.Error(w, "Url Param 'q' is missing", 500) | |
| return | |
| } | |
| // Fetch response from YouTube | |
| r2, err := http.Get("https://www.googleapis.com/youtube/v3/search?q=" + q[0] + | |
| "&type=video&part=snippet&maxResults=20&key=" + apiKey) | |
| if err != nil { | |
| http.Error(w, err.Error(), 500) | |
| return | |
| } | |
| defer r2.Body.Close() | |
| var r3 msi | |
| err = json.NewDecoder(r2.Body).Decode(&r3) | |
| if err != nil { | |
| http.Error(w, err.Error(), 500) | |
| return | |
| } | |
| /******************************** | |
| Do stuff with YouTube search results | |
| ********************************/ | |
| println(r3) | |
| // Return YouTube results | |
| output, err := json.Marshal(r3) | |
| if err != nil { | |
| http.Error(w, err.Error(), 500) | |
| return | |
| } | |
| w.Header().Set("content-type", "application/json") | |
| w.Write(output) | |
| } | |
| func main() { | |
| http.Handle("/", http.FileServer(http.Dir("./static"))) | |
| http.HandleFunc("/search", search) | |
| println("Listening on 8080") | |
| http.ListenAndServe(":8080", nil) | |
| } | |
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