feat: make /api/feed endpoint idempotent

README.md

@@ -22,12 +22,10 @@
 `rsslay` exposes an API to work with it programmatically, so you can automate feed creation and retrieval.
 The following operations are available:
 
-### Get a existing feed information
-
-_**Note:** the feed must already be created, if not exists it will return `404 - Not found`_
+### Get/Create a feed
 
 - Path: `/api/feed`
-- Method: `GET`
+- Method: `GET` or `POST`
 - Query params **(mandatory)**: `url`
 - Example: `GET https://rsslay.nostr.moe/api/feed?url=https://www.engadget.com/rss.xml`
 - Result: `application/json`
@@ -43,24 +41,11 @@ _**Note:** the feed must already be created, if not exists it will return `404 -
    }
    ```
 
-### Create a feed
-
-- Path: `/api/feed`
-- Method: `POST`
-- Query params **(mandatory)**: `url`
-- Example: `POST https://rsslay.nostr.moe/api/feed?url=https://www.engadget.com/rss.xml`
-- Result: `application/json`
-- Example result:
-   ```json
-   {
-     "PubKey": "1e630062dd55226058224a0a1e9b54e09ac121ed13dd5070758816a9c561aeab",
-     "NPubKey": "npub1re3sqcka253xqkpzfg9pax65uzdvzg0dz0w4qur43qt2n3tp464sswsn92",
-     "Url": "https://www.engadget.com/rss.xml",
-     "Error": false,
-     "ErrorMessage": "", 
-     "ErrorCode": 0
-   }
-   ```
+Example with cURL:
+```shell
+curl --location --request GET \ 
+'https://rsslay.nostr.moe/api/feed?url=https://nitter.moomoo.me/suhail/rss'
+```
 
 ## Running the relay from the source
 

handlers.go

@@ -8,7 +8,6 @@ import (
 	"html/template"
 	"log"
 	"net/http"
-	"net/url"
 )
 
 //go:embed templates/*
@@ -83,9 +82,7 @@ func handleFavicon(w http.ResponseWriter, _ *http.Request) {
 }
 
 func handleApiFeed(w http.ResponseWriter, r *http.Request) {
-	if r.Method == http.MethodGet {
-		handleGetFeedEntry(w, r)
-	} else if r.Method == http.MethodPost {
+	if r.Method == http.MethodGet || r.Method == http.MethodPost {
 		handleCreateFeedEntry(w, r)
 	} else {
 		http.Error(w, "Method not supported", http.StatusMethodNotAllowed)
@@ -107,48 +104,6 @@ func handleCreateFeedEntry(w http.ResponseWriter, r *http.Request) {
 	_, _ = w.Write(response)
 }
 
-func handleGetFeedEntry(w http.ResponseWriter, r *http.Request) {
-	feedUrl := r.URL.Query().Get("url")
-	if feedUrl == "" {
-		http.Error(w, "The query parameter 'url' is mandatory", http.StatusBadRequest)
-		return
-	}
-	_, err := url.Parse(feedUrl)
-	if err != nil {
-		http.Error(w, "The query parameter 'url' is not a valid URL", http.StatusBadRequest)
-		return
-	}
-	sk := privateKeyFromFeed(feedUrl)
-	publicKey, err := nostr.GetPublicKey(sk)
-	if err != nil {
-		http.Error(w, "Unable to process query for url: "+feedUrl, http.StatusInternalServerError)
-		return
-	}
-
-	entry, i, err := relay.db.Get([]byte(publicKey))
-	defer i.Close()
-	if err != nil {
-		http.Error(w, "Unable to get entry for url: "+feedUrl, http.StatusInternalServerError)
-		return
-	}
-	var entity Entity
-	if err := json.Unmarshal(entry, &entity); err != nil {
-		log.Printf("got invalid json from db at key %s: %v", publicKey, err)
-		http.Error(w, "Unable to get entry for url: "+feedUrl, http.StatusInternalServerError)
-		return
-	}
-	encodedPublicKey, _ := nip19.EncodePublicKey(publicKey)
-	response, _ := json.Marshal(Entry{
-		PubKey:  publicKey,
-		NPubKey: encodedPublicKey,
-		Url:     entity.URL,
-	})
-	w.Header().Set("Content-Type", "application/json")
-	w.WriteHeader(http.StatusOK)
-	_, _ = w.Write(response)
-	return
-}
-
 func createFeedEntry(url string) *Entry {
 	entry := Entry{
 		Error: false,