add method to publish image msg

src/api/publish.rs

@@ -4,9 +4,12 @@
 //!
 //! - [`Sbot::publish`]
 //! - [`Sbot::publish_description`]
+//! - [`Sbot::publish_image`]
 //! - [`Sbot::publish_name`]
 //! - [`Sbot::publish_post`]
 
+use kuska_ssb::api::dto::content::Image;
+
 use crate::{error::GolgiError, messages::SsbMessageContent, sbot::Sbot, utils};
 
 impl Sbot {
@@ -116,6 +119,45 @@ impl Sbot {
         self.publish(msg).await
     }
 
+    /// Publish an image for the local identity.
+    ///
+    /// Requires the image to have been added to the local blobstore. The
+    /// ID of the blob (sigil-link in the form `&...=.sha256`) must be provided.
+    ///
+    /// Convenient wrapper around the `publish` method which constructs and
+    /// publishes an `about` type name message appropriately from a string.
+    ///
+    /// # Example
+    ///
+    /// ```rust
+    /// use golgi::{Sbot, GolgiError};
+    ///
+    /// async fn publish_an_image() -> Result<(), GolgiError> {
+    ///     let mut sbot_client = Sbot::init(None, None).await?;
+    ///
+    ///     let blob_id = "&JlJHc9yeG1EpZA9fIPGLzUKDH0FeR39Ai57euhKT1G8=.sha256";
+    ///
+    ///     let msg_ref = sbot_client.publish_image(blob_id).await?;
+    ///
+    ///     println!("msg reference: {}", msg_ref);
+    ///
+    ///     Ok(())
+    /// }
+    /// ```
+    pub async fn publish_image(&mut self, blob_id: &str) -> Result<String, GolgiError> {
+        let msg = SsbMessageContent::About {
+            about: self.id.to_string(),
+            name: None,
+            title: None,
+            branch: None,
+            image: Some(Image::OnlyLink(blob_id.to_string())),
+            description: None,
+            location: None,
+            start_datetime: None,
+        };
+        self.publish(msg).await
+    }
+
     /// Publish a name for the local identity.
     ///
     /// Convenient wrapper around the `publish` method which constructs and