Featurize transcription modes

CHANGELOG.md

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 - Deprecate tiers and add explicit support for all currently available models.
 - Expand language enum to include all currently-supported languages.
+- Add (default on) feature flags for live and prerecorded transcription.
 
 ## [0.4.0] - 2023-11-01
 

Cargo.toml

@@ -22,9 +22,9 @@ serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 thiserror = "1"
 tokio = { version = "1.13.0", features = ["full"] }
-tokio-tungstenite = { version = "0.20.1", features = ["rustls-tls-webpki-roots"] }
+tokio-tungstenite = { version = "0.20.1", features = ["rustls-tls-webpki-roots"], optional = true }
 tokio-util = { version = "0.7.1", features = ["codec", "io"] }
-tungstenite = "0.20.1"
+tungstenite = { version = "0.20.1", optional = true }
 url = "2"
 uuid = { version = "1", features = ["serde"] }
 # Dependencies below are specified only to satisfy minimal-versions.
@@ -34,3 +34,8 @@ proc-macro2 = "1.0.60"
 pkg-config = "0.3.27"
 cpal = "0.13"
 crossbeam = "0.8"
+
+[features]
+default = ["prerecorded", "live"]
+live = ["dep:tungstenite", "dep:tokio-tungstenite"]
+prerecorded = []

src/lib.rs

@@ -31,6 +31,7 @@ mod response;
 /// Make transcriptions requests using [`Deepgram::transcription`].
 #[derive(Debug, Clone)]
 pub struct Deepgram {
+    #[cfg_attr(not(feature = "live"), allow(unused))]
     api_key: String,
     client: reqwest::Client,
 }
@@ -65,6 +66,7 @@ pub enum DeepgramError {
     #[error("Something went wrong during I/O: {0}")]
     IoError(#[from] io::Error),
 
+    #[cfg(feature = "live")]
     /// Something went wrong with WS.
     #[error("Something went wrong with WS: {0}")]
     WsError(#[from] tungstenite::Error),

src/transcription.rs

@@ -6,7 +6,9 @@
 
 use crate::Deepgram;
 
+#[cfg(feature = "live")]
 pub mod live;
+#[cfg(feature = "prerecorded")]
 pub mod prerecorded;
 
 /// Transcribe audio using Deepgram's automated speech recognition.