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SeanOMik 2024-01-21 10:19:30 -05:00
commit bea2054709
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GPG Key ID: FEC9E2FC15235964
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/target
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config.toml

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config.toml
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{
"rust-analyzer.check.extraArgs": [
"--target-dir=target/analyzer"
]
}

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[package]
name = "tautulli-exporter"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
anyhow = "1.0.79"
axum = "0.7.4"
clap = { version = "4.4.18", features = ["derive"] }
figment = { version = "0.10.14", features = ["toml", "env"] }
prometheus = "0.13.3"
reqwest = { version = "0.11.23", features = ["json"] }
serde = { version = "1.0.195", features = ["derive"] }
serde-aux = "4.4.0"
serde_json = "1.0.111"
thiserror = "1.0.56"
tokio = { version = "1.35.1", features = ["full"] }
tower-http = { version = "0.5.1", features = ["trace"] }
tracing = "0.1.40"
tracing-subscriber = "0.3.18"

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FROM rust:alpine3.17 as builder
# update packages
RUN apk update
RUN apk add build-base ca-certificates libressl-dev
# create root application folder
WORKDIR /app
COPY ./ /app/src
# Install rust toolchains
RUN rustup toolchain install stable
RUN rustup default stable
WORKDIR /app/src
# Build dependencies only. Separate these for caches
RUN cargo install cargo-build-deps
RUN sh -c "cargo build-deps --release"
# Build the release executable.
RUN sh -c "cargo build --release"
# Runner stage. I tried using distroless (gcr.io/distroless/static-debian11), but the image was only ~3MBs smaller than
# alpine. I chose to use alpine since it makes it easier to exec into the container to debug things.
FROM alpine:3.17
ARG UNAME=exporter
ARG UID=1000
ARG GID=1000
# Add user and copy the executable from the build stage.
RUN adduser --disabled-password --gecos "" $UNAME -s -G $GID -u $UID
COPY --from=builder --chown=$UID:$GID /app/src/target/release/tautulli-exporter /app/tautulli-exporter
# Chown everything
RUN mkdir /data && \
chown -R $UID:$GID /data && \
chown -R $UID:$GID /app
USER $UNAME
WORKDIR /app/
EXPOSE 3000
ENTRYPOINT [ "/app/tautulli-exporter", "--config", "/app/config.toml" ]

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PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

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// Mostly generated using https://transform.tools/json-to-rust-serde
use serde::Deserialize;
use serde::Serialize;
use serde_json::Value;
use serde_aux::field_attributes::{deserialize_number_from_string, deserialize_option_number_from_string};
#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct TautulliResponse<T> {
#[serde(rename = "result")]
pub status: String,
pub message: Option<String>,
pub data: T
}
#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct Activities {
#[serde(deserialize_with = "deserialize_number_from_string")]
pub stream_count: u64,
pub sessions: Vec<Session>,
pub stream_count_direct_play: u64,
pub stream_count_direct_stream: u64,
pub stream_count_transcode: u64,
pub total_bandwidth: u64,
pub lan_bandwidth: u64,
pub wan_bandwidth: u64,
}
#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct Session {
pub session_key: String,
pub media_type: String,
pub view_offset: String,
pub progress_percent: String,
pub quality_profile: String,
pub synced_version_profile: String,
pub optimized_version_profile: String,
pub user: String,
pub channel_stream: i64,
pub section_id: String,
pub library_name: String,
pub rating_key: String,
pub parent_rating_key: String,
pub grandparent_rating_key: String,
pub title: String,
pub parent_title: String,
pub grandparent_title: String,
pub original_title: String,
pub sort_title: String,
pub edition_title: String,
pub media_index: String,
pub parent_media_index: String,
pub studio: String,
pub content_rating: String,
pub summary: String,
pub tagline: String,
#[serde(deserialize_with = "deserialize_option_number_from_string")]
pub rating: Option<f32>,
pub rating_image: Option<String>,
pub audience_rating: String,
pub audience_rating_image: String,
pub user_rating: String,
#[serde(deserialize_with = "deserialize_number_from_string")]
pub duration: u64,
pub year: String,
pub parent_year: String,
pub grandparent_year: String,
pub thumb: String,
pub parent_thumb: String,
pub grandparent_thumb: String,
pub art: String,
pub banner: String,
pub originally_available_at: String,
pub added_at: String,
pub updated_at: String,
pub last_viewed_at: String,
pub guid: String,
pub parent_guid: String,
pub grandparent_guid: String,
pub directors: Vec<String>,
pub writers: Vec<String>,
pub actors: Vec<String>,
pub genres: Vec<String>,
pub labels: Vec<Value>,
pub collections: Vec<Value>,
pub guids: Vec<String>,
pub markers: Vec<Marker>,
pub parent_guids: Vec<String>,
pub grandparent_guids: Vec<String>,
pub full_title: String,
pub children_count: i64,
pub live: i64,
pub id: String,
pub container: String,
pub bitrate: String,
pub height: String,
pub width: String,
pub aspect_ratio: String,
pub video_codec: String,
pub video_resolution: String,
pub video_full_resolution: String,
pub video_framerate: String,
pub video_profile: String,
pub audio_codec: String,
pub audio_channels: String,
pub audio_channel_layout: String,
pub audio_profile: String,
pub optimized_version: i64,
pub channel_call_sign: String,
pub channel_identifier: String,
pub channel_thumb: String,
pub file: String,
#[serde(deserialize_with = "deserialize_number_from_string")]
pub file_size: u64,
pub indexes: i64,
pub selected: i64,
#[serde(rename = "type")]
pub type_field: String,
pub video_codec_level: String,
pub video_bitrate: String,
pub video_bit_depth: String,
pub video_chroma_subsampling: String,
pub video_color_primaries: String,
pub video_color_range: String,
pub video_color_space: String,
pub video_color_trc: String,
pub video_dynamic_range: String,
pub video_frame_rate: String,
pub video_ref_frames: String,
pub video_height: String,
pub video_width: String,
pub video_language: String,
pub video_language_code: String,
pub video_scan_type: String,
pub audio_bitrate: String,
pub audio_bitrate_mode: String,
pub audio_sample_rate: String,
pub audio_language: String,
pub audio_language_code: String,
pub subtitle_codec: String,
pub subtitle_container: String,
pub subtitle_format: String,
pub subtitle_forced: i64,
pub subtitle_location: String,
pub subtitle_language: String,
pub subtitle_language_code: String,
pub row_id: i64,
pub user_id: i64,
pub username: String,
pub friendly_name: String,
pub user_thumb: String,
pub email: String,
pub is_active: i64,
pub is_admin: i64,
pub is_home_user: i64,
pub is_allow_sync: i64,
pub is_restricted: i64,
pub do_notify: i64,
pub keep_history: i64,
pub deleted_user: i64,
pub allow_guest: i64,
pub shared_libraries: Vec<String>,
pub last_seen: Option<String>,
pub ip_address: String,
pub ip_address_public: String,
pub device: String,
pub platform: String,
pub platform_name: String,
pub platform_version: String,
pub product: String,
pub product_version: String,
pub profile: String,
pub player: String,
pub machine_id: String,
pub state: String,
pub local: i64,
pub relayed: i64,
pub secure: i64,
pub session_id: String,
#[serde(deserialize_with = "deserialize_number_from_string")]
pub bandwidth: u64,
pub location: String,
pub transcode_key: String,
pub transcode_throttled: i64,
pub transcode_progress: i64,
pub transcode_speed: String,
pub transcode_audio_channels: String,
pub transcode_audio_codec: String,
pub transcode_video_codec: String,
pub transcode_width: String,
pub transcode_height: String,
pub transcode_container: String,
pub transcode_protocol: String,
pub transcode_min_offset_available: i64,
pub transcode_max_offset_available: i64,
pub transcode_hw_requested: i64,
pub transcode_hw_decode: String,
pub transcode_hw_decode_title: String,
pub transcode_hw_encode: String,
pub transcode_hw_encode_title: String,
pub transcode_hw_full_pipeline: i64,
pub audio_decision: String,
pub video_decision: String,
pub subtitle_decision: String,
pub throttled: String,
pub transcode_hw_decoding: i64,
pub transcode_hw_encoding: i64,
pub stream_container: String,
pub stream_bitrate: String,
pub stream_aspect_ratio: String,
pub stream_video_framerate: String,
pub stream_video_resolution: String,
pub stream_duration: String,
pub stream_container_decision: String,
pub optimized_version_title: String,
pub synced_version: i64,
pub live_uuid: String,
pub bif_thumb: String,
pub subtitles: i64,
pub transcode_decision: String,
pub container_decision: String,
pub stream_video_full_resolution: String,
pub stream_video_bitrate: String,
pub stream_video_bit_depth: String,
pub stream_video_chroma_subsampling: String,
pub stream_video_codec: String,
pub stream_video_codec_level: String,
pub stream_video_color_primaries: String,
pub stream_video_color_range: String,
pub stream_video_color_space: String,
pub stream_video_color_trc: String,
pub stream_video_dynamic_range: String,
pub stream_video_height: String,
pub stream_video_width: String,
pub stream_video_ref_frames: String,
pub stream_video_language: String,
pub stream_video_language_code: String,
pub stream_video_scan_type: String,
pub stream_video_decision: String,
pub stream_audio_bitrate: String,
pub stream_audio_bitrate_mode: String,
pub stream_audio_channels: String,
pub stream_audio_channel_layout: String,
pub stream_audio_codec: String,
pub stream_audio_sample_rate: String,
#[serde(rename = "stream_audio_channel_layout_")]
pub stream_audio_channel_layout2: String,
pub stream_audio_language: String,
pub stream_audio_language_code: String,
pub stream_audio_decision: String,
pub stream_subtitle_codec: String,
pub stream_subtitle_container: String,
pub stream_subtitle_format: String,
pub stream_subtitle_forced: i64,
pub stream_subtitle_location: String,
pub stream_subtitle_language: String,
pub stream_subtitle_language_code: String,
pub stream_subtitle_decision: String,
pub stream_subtitle_transient: i64,
}
#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct Marker {
pub id: i64,
#[serde(rename = "type")]
pub type_field: String,
pub start_time_offset: i64,
pub end_time_offset: i64,
pub first: Option<bool>,
#[serde(rename = "final")]
pub final_field: Option<bool>,
}

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use std::{sync::Arc, time::Instant};
use anyhow::anyhow;
use axum::{
body::Body,
extract::State,
http::StatusCode,
response::IntoResponse,
routing::get,
Router,
};
use clap::Parser;
use prometheus::{
opts, register_counter_vec_with_registry, register_gauge_vec_with_registry,
register_gauge_with_registry, TextEncoder,
};
use serde::{
de::{Error, IntoDeserializer},
Deserialize
};
use figment::{
providers::{Env, Format, Toml},
Figment,
};
use tokio::sync::Mutex;
mod dto;
use dto::*;
use tower_http::trace::TraceLayer;
use tracing::{debug, error, info, Level};
use tracing_subscriber::{filter, fmt, layer::SubscriberExt, util::SubscriberInitExt};
const VERSION: &str = env!("CARGO_PKG_VERSION");
#[derive(Debug, thiserror::Error)]
enum CollectionError {
#[error("{0}")]
HttpError(reqwest::Error),
#[error("{0}")]
Json(serde_json::Error),
#[error("{0}")]
Other(anyhow::Error),
}
impl From<reqwest::Error> for CollectionError {
fn from(value: reqwest::Error) -> Self {
Self::HttpError(value)
}
}
impl From<serde_json::Error> for CollectionError {
fn from(value: serde_json::Error) -> Self {
Self::Json(value)
}
}
impl IntoResponse for CollectionError {
fn into_response(self) -> axum::response::Response {
let body_str = format!("{:?}", self);
let body = Body::new(body_str);
axum::response::Response::builder()
.status(StatusCode::INTERNAL_SERVER_ERROR)
.body(body)
.unwrap()
}
}
struct Metrics {
registry: prometheus::Registry,
#[allow(dead_code)] // registers itself in the register
counter_info: prometheus::CounterVec,
gauge_up: prometheus::Gauge,
gauge_taut_resp: prometheus::Gauge,
/// Counts the total number of streams
gauge_streams_total: prometheus::Gauge,
/// Counts the number of transcoded streams
gauge_streams_transcoded: prometheus::Gauge,
/// Counts the number of direct plays
gauge_streams_direct_play: prometheus::Gauge,
/// Counts the number of direct streams
gauge_streams_direct_streams: prometheus::Gauge,
gauge_streams: prometheus::GaugeVec,
/// The total amount of bandwidth used
gauge_total_bandwidth: prometheus::Gauge,
}
impl Metrics {
pub fn new(config: &Config) -> anyhow::Result<Self> {
let registry =
prometheus::Registry::new_custom(Some(config.metrics_prefix.clone()), None).unwrap();
let opts = opts!("up", "Wether or not the last scrape succeeded");
let gauge_up = register_gauge_with_registry!(opts, registry)?;
let opts = opts!("tautulli_response_ms", "The response time of tautulli (in ms)");
let gauge_taut_resp = register_gauge_with_registry!(opts, registry)?;
let opts = opts!("info", "Information about the scraper");
let counter_info = register_counter_vec_with_registry!(opts, &["version"], registry)?;
counter_info.with_label_values(&[VERSION]).inc();
let opts = opts!("stream_total", "The total number of active streams");
let counter_total = register_gauge_with_registry!(opts, registry)?;
let opts = opts!(
"stream_transcoded_count",
"The number of transcoded streams"
);
let counter_transcoded = register_gauge_with_registry!(opts, registry)?;
let opts = opts!(
"stream_direct_play_count",
"The number of direct play streams"
);
let counter_direct_play = register_gauge_with_registry!(opts, registry)?;
let opts = opts!("stream_direct_stream_count", "The number of direct streams");
let counter_direct_streams = register_gauge_with_registry!(opts, registry)?;
let opts = opts!("bandwidth", "The total used bandwidth");
let gauge_lan_band = register_gauge_with_registry!(opts, registry)?;
let per_stream_labels = &[
"library",
"media_resolution",
"media_codec",
"media_full_title",
"media_title",
"media_title_parent",
"media_title_grandparent",
"media_file",
"media_duration",
"media_thumb",
"media_thumb_parent",
"media_thumb_grandparent",
"stream_resolution", // retrieved from stream_video_width
"stream_resolution_friendly", // retrieved from stream_resolution
"progress_percent",
"state",
"player",
"user",
"user_thumb",
"platform",
"platform_name",
"platform_version",
"product_name",
"product_version",
"device",
"audio_decision",
"video_decision",
"transcode_video_codec",
];
let opts = opts!("stream", "Information about an active stream. The value is the bandwidth of the stream.");
let gauge_vec_streams =
register_gauge_vec_with_registry!(opts, per_stream_labels, registry)?;
Ok(Self {
registry,
counter_info,
gauge_up,
gauge_taut_resp,
gauge_streams_total: counter_total,
gauge_streams_transcoded: counter_transcoded,
gauge_streams_direct_play: counter_direct_play,
gauge_streams_direct_streams: counter_direct_streams,
gauge_streams: gauge_vec_streams,
gauge_total_bandwidth: gauge_lan_band,
})
}
}
#[derive(Clone, Deserialize)]
struct Config {
tautulli_url: String,
tautulli_apikey: String,
#[serde(default = "metrics_prefix_default")]
metrics_prefix: String,
}
fn metrics_prefix_default() -> String {
"tautulli".to_string()
}
impl Config {
/// Constructs an api endpoint for you
fn api_endpoint(&self, command: &str) -> String {
//http://IP_ADDRESS:PORT + [/HTTP_ROOT] + /api/v2?apikey=$apikey&cmd=$command
format!(
"{}/api/v2?apikey={}&cmd={}",
self.tautulli_url, self.tautulli_apikey, command
)
}
/// Constructs a url for a proxied image
fn image_proxy(&self, image: &str) -> String {
format!("{}/pms_image_proxy?img={}", self.tautulli_url, image)
}
}
#[derive(Parser, Debug)]
#[command(author, version, about, long_about = None)]
struct Args {
/// The path of the config
#[arg(short, long)]
config: String,
}
#[derive(Clone)]
struct MetricsState(Arc<Mutex<Metrics>>);
impl std::ops::Deref for MetricsState {
type Target = Arc<Mutex<Metrics>>;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl std::ops::DerefMut for MetricsState {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.0
}
}
#[derive(Clone)]
struct AppState {
config: Arc<Config>,
metrics: Arc<Mutex<Metrics>>,
}
#[tokio::main]
async fn main() -> anyhow::Result<()> {
tracing_subscriber::registry()
.with(fmt::layer().with_writer(std::io::stdout))
.with(
filter::Targets::new()
.with_target("tautulli_exporter", Level::DEBUG)
.with_target("tower_http::trace", Level::DEBUG)
.with_default(Level::INFO),
)
.init();
let args = Args::parse();
let mut config: Config = Figment::new()
.merge(Toml::file(args.config))
.merge(Env::prefixed("TAUTEXP_"))
.extract()?;
// if the url ends with a `/` it can cause some issues
if config.tautulli_url.ends_with("/") {
config.tautulli_url = String::from(&config.tautulli_url[..config.tautulli_url.len() - 1]);
}
let metrics_state = Metrics::new(&config)?;
let state = AppState {
config: Arc::new(config),
metrics: Arc::new(Mutex::new(metrics_state)),
};
// build our application with a route
let app = Router::new()
// `GET /` goes to `root`
.route("/", get(root))
.route("/metrics", get(metrics))
.with_state(state)
.layer(TraceLayer::new_for_http());
let bind = "0.0.0.0:3000";
let listener = tokio::net::TcpListener::bind(bind).await?;
info!("Starting http server, listening on {}", bind);
axum::serve(listener, app).await?;
Ok(())
}
// basic handler that responds with a static string
async fn root() -> &'static str {
"Hello, World!"
}
async fn metrics(State(state): State<AppState>) -> Result<String, CollectionError> {
let config = &state.config;
let url = config.api_endpoint("get_activity");
debug!("Scraping tautulli from at '{url}'");
let start = Instant::now();
let resp = reqwest::get(url).await?;
let response_time = Instant::now() - start;
let resp = resp.text().await?;
std::fs::write("temp.json", &resp).unwrap();
let resp = serde_json::from_str::<serde_json::Value>(&resp)?;
// tautulli responses are in a response field
let resp = resp
.get("response")
.ok_or_else(|| serde_json::Error::missing_field("response"))
.and_then(|r| TautulliResponse::<Activities>::deserialize(r.into_deserializer()))?;
if resp.status == "success".to_string() {
//let resp = serde_json::to_string(&resp)?;
let metrics = state.metrics.lock().await;
metrics.gauge_up.set(1.0);
metrics.gauge_total_bandwidth.set(resp.data.total_bandwidth as f64);
metrics.gauge_streams_direct_play.set(resp.data.stream_count_direct_play as f64);
metrics.gauge_streams_direct_streams.set(resp.data.stream_count_direct_stream as f64);
metrics.gauge_streams_transcoded.set(resp.data.stream_count_transcode as f64);
metrics.gauge_streams_total.set(resp.data.stream_count as f64);
metrics.gauge_taut_resp.set(response_time.as_millis() as f64);
metrics.gauge_streams.reset();
for session in resp.data.sessions.into_iter() {
let label_values: &[&str] = &[
&session.library_name,
&session.video_resolution,
&session.video_codec,
&session.full_title,
&session.title,
&session.parent_title,
&session.grandparent_title,
&session.file,
&session.duration.to_string(),
&config.image_proxy(&session.thumb),
&config.image_proxy(&session.parent_thumb),
&config.image_proxy(&session.grandparent_thumb),
&session.stream_video_width,
&session.stream_video_resolution,
&session.progress_percent,
&session.state,
&session.player,
&session.username,
&config.image_proxy(&session.user_thumb),
&session.platform,
&session.platform_name,
&session.platform_version,
&session.product,
&session.product_version,
&session.device,
&session.audio_decision,
&session.video_decision,
&session.transcode_video_codec,
];
metrics.gauge_streams
.with_label_values(label_values)
.set(session.bandwidth as f64);
}
let reg = &metrics.registry;
let encoder = TextEncoder::new();
let metric_families = reg.gather();
let metrics_str = encoder.encode_to_string(&metric_families).unwrap();
Ok(metrics_str)
} else {
error!(
"Retrieved an unsuccessful response from tautulli! Message: {:?}",
resp.message
);
Err(CollectionError::Other(anyhow!(
"Retrieved an unsuccessful response from tautulli!"
)))
}
}