fix upload image of MastodonClient method in main & small fixes

bot/src/main.rs

@@ -134,9 +134,14 @@ async fn main() -> Result<(), anyhow::Error> {
                     Ok(post) => {
                         // Step1: Upload image to Mastodon
                         let media_response = if post.image.is_some() {
-                            Ok(mastodon_client
+                            let response = mastodon_client
                                 .upload_media_by_url(post.image.clone().unwrap().as_str())
-                                .await?)
+                                .await;
+
+                            match response {
+                                Ok(response) => Ok(response),
+                                Err(err) => Err(anyhow!("failed to upload image: {err}")),
+                            }
                         } else {
                             Err(anyhow!("No image exists on post."))
                         };

bot/src/mastodon/api.rs

@@ -38,13 +38,13 @@ impl From<NewsPost> for PostStatusRequest {
         if character_budget > 0 {
             status.push_str(title.get(0..character_budget).unwrap_or(title.as_str()));
             character_budget -= title.len() + 2;
-            status.push_str("\n")
+            status.push('\n')
         }
 
         // Push the summary
         if character_budget > 0 {
             status.push_str(summary.get(0..character_budget).unwrap_or(summary.as_str()));
-            status.push_str("\n")
+            status.push('\n')
         }
 
         // Push the link

readme.md

@@ -46,5 +46,24 @@ things simple and due to its powerful features and flexibility[1].
 
 The BlueSky bot reads data from Redis Streams and publishes it to BlueSky.
 
+```shell
+Social media posting bot.
+
+Usage: bot --redis-connection-string <REDIS_CONNECTION_STRING> --redis-stream-name <REDIS_STREAM_NAME> --redis-consumer-group <REDIS_CONSUMER_GROUP> --redis-consumer-name <REDIS_CONSUMER_NAME> <COMMAND>
+
+Commands:
+  bluesky   Post on bluesky platform
+  mastodon  Post on Mastodon, the FediVerse
+  help      Print this message or the help of the given subcommand(s)
+
+Options:
+  -r, --redis-connection-string <REDIS_CONNECTION_STRING>  Redis host
+  -t, --redis-stream-name <REDIS_STREAM_NAME>              Redis stream name
+  -c, --redis-consumer-group <REDIS_CONSUMER_GROUP>        Redis consumer group name
+  -n, --redis-consumer-name <REDIS_CONSUMER_NAME>          The current consumer name
+  -h, --help                                               Print help
+  -V, --version                                            Print version
+```
+
 [1] - https://redis.io/about/