# Bilistream Default Check Interval: Technical Implementation Guide

> Discover the default bilistream check interval of 60 seconds. Get technical details on its implementation and configuration in this guide.

- Repository: [InitCool/bilistream](https://github.com/limitcool/bilistream)
- Tags: technical-implementation-guide
- Published: 2026-03-06

---

**The default check interval for bilistream is 60 seconds**, as specified in the example configuration and implemented in the application's main event loop.

Bilistream is an open-source live streaming status monitor maintained by limitcool that checks platform APIs at regular intervals. Understanding the bilistream default check interval is essential for optimizing API usage and managing system resources effectively. This value controls the polling frequency when monitoring platforms like Twitch, Bilibili, or other supported streaming services.

## How the Check Interval Works in Bilistream

The check interval represents the duration the application waits between consecutive live status queries. According to the limitcool/bilistream source code, this duration is stored as a 64-bit unsigned integer representing seconds, then applied using asynchronous sleep operations.

### Configuration Structure Definition

In [`src/config.rs`](https://github.com/limitcool/bilistream/blob/main/src/config.rs), the `Config` struct explicitly defines the interval field that stores this duration:

```rust
// src/config.rs – Configuration struct definition
pub struct Config {
    pub interval: u64,  // Duration in seconds between live checks
    // ... additional configuration fields ...
}

```

This struct field is deserialized from the YAML configuration file at startup and accessed throughout the application as `cfg.interval`.

### Main Event Loop Implementation

The main execution loop in [`src/main.rs`](https://github.com/limitcool/bilistream/blob/main/src/main.rs) (lines 104-106) utilizes this value to pause between status checks. The implementation uses Tokio's asynchronous sleep function with the configured duration:

```rust
// src/main.rs – Main event loop implementation
loop {
    // ... live status checking and streaming logic ...
    
    // Pause execution for the configured interval duration
    tokio::time::sleep(Duration::from_secs(cfg.interval)).await;
}

```

This ensures the program waits exactly `cfg.interval` seconds before querying the live status API again, preventing excessive polling and respecting rate limits.

## Configuring the Check Interval

Users customize the polling frequency through the [`config.yaml`](https://github.com/limitcool/bilistream/blob/main/config.yaml) file, which maps directly to the `interval` field in the configuration struct.

### Default Configuration Example

The project's README documents the 60-second default in the example configuration at lines 155-158:

```yaml

# config.yaml – Default bilistream configuration example

Interval: 60          # Check live status every 60 seconds

Platform: Twitch      # Target streaming platform

# ... additional required fields ...

```

Setting `Interval: 60` establishes a balanced one-minute polling cycle that minimizes API calls while maintaining reasonable responsiveness to stream status changes.

### Modifying the Check Interval

To override the default 60-second value, edit the `Interval` key in your local configuration file:

```yaml

# config.yaml – Custom interval configuration

Interval: 30          # Check every 30 seconds instead of 60

Platform: Bilibili    # Alternative platform selection

```

The application loads this value into `cfg.interval` at runtime, and the main loop immediately applies the new duration to its sleep operations.

## Summary

- **The bilistream default check interval is 60 seconds**, as demonstrated in the README's example [`config.yaml`](https://github.com/limitcool/bilistream/blob/main/config.yaml).
- The interval is defined as a `u64` field named `interval` in [`src/config.rs`](https://github.com/limitcool/bilistream/blob/main/src/config.rs) within the `Config` struct.
- The main event loop in [`src/main.rs`](https://github.com/limitcool/bilistream/blob/main/src/main.rs) applies this value using `tokio::time::sleep(Duration::from_secs(cfg.interval)).await`.
- Users override the default by modifying the `Interval` key in their local [`config.yaml`](https://github.com/limitcool/bilistream/blob/main/config.yaml) file.

## Frequently Asked Questions

### What is the bilistream default check interval?

**The default check interval is 60 seconds.** This value appears in the example configuration provided in the repository README, where `Interval: 60` establishes a one-minute polling cycle unless explicitly overridden by the user.

### Where is the check interval defined in the bilistream source code?

**The interval is defined in [`src/config.rs`](https://github.com/limitcool/bilistream/blob/main/src/config.rs).** The `Config` struct declares `pub interval: u64`, which stores the duration in seconds. This field is deserialized from the configuration file and accessed throughout the application as `cfg.interval`.

### How does bilistream implement the waiting period between checks?

**The application uses Tokio's asynchronous sleep function in [`src/main.rs`](https://github.com/limitcool/bilistream/blob/main/src/main.rs).** The main event loop calls `tokio::time::sleep(Duration::from_secs(cfg.interval)).await` to pause execution between iterations, ensuring the program waits exactly the configured number of seconds before the next live status query.

### Can I set a custom check interval shorter than 60 seconds?

**Yes, any positive integer value is valid.** Simply modify the `Interval` field in your [`config.yaml`](https://github.com/limitcool/bilistream/blob/main/config.yaml) file to your preferred duration in seconds. For example, setting `Interval: 30` reduces the wait time between checks to 30 seconds, though users should consider API rate limits when decreasing this value.