Decision Workspace
callbag vs epoxy_frp vs observe
Side-by-side comparison of Rust crates
46
callbag
growingv0.14.0
Rust implementation of the callbag spec for reactive/iterable programming
35
epoxy_frp
growingv0.3.1
The Reactive Glue for Frontend Applications
49
observe
stablev2.0.0
Rust declarative observables inspired by MobX
Core Metrics
| callbag | epoxy_frp | observe | |
|---|---|---|---|
| Health Score | 46 | 35 | 49 |
| Total Downloads | 18.4K | 3.3K | 6.2K |
| 30d Downloads | 18 | 4 | 43 |
| Dependents | 0 | 0 | 1 |
| Releases | 14 | 2 | 6 |
| Last Updated | 1533d ago | 2519d ago | 66d ago |
| Age | 4y 4m | 6y 11m | 5y 9m |
Health Breakdown
callbag
Maintenance
7
Quality
16
Community
6
Popularity
5
Documentation
12
epoxy_frp
Maintenance
3
Quality
15
Community
5
Popularity
4
Documentation
8
observe
Maintenance
12
Quality
18
Community
4
Popularity
5
Documentation
10
Technical Details
| callbag | epoxy_frp | observe | |
|---|---|---|---|
| Version | 0.14.0 | 0.3.1 | 2.0.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT OR Apache-2.0 | MIT | MIT |
| Dependencies | 16 | 3 | 11 |
| Crate Size | 42KB | 5KB | 21KB |
| Features | 16 | 0 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | — | 2021 |
| MSRV | 1.58 | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •observe leads with a health score of 49/100, but none of the options score above 80.
- •callbag has the most downloads (18.4K), suggesting wider adoption.
- •⚠ callbag, epoxy_frp have not been updated in over a year.
- •callbag, epoxy_frp are pre-1.0 — API may change.