gRPC vs REST vs GraphQL in Rust — Which is Fastest in 2026? (Tonic, Axum, async-graphql)
gRPC, REST, or GraphQL — which should you use for your Rust backend in 2026? I built the same user service in all three, benchmarked them head to head, and put together a real decision framework. No hype — just code and numbers.
Tonic 0.12 for gRPC. Axum 0.8 for REST. async-graphql 7 for GraphQL. All running on the same hardware.
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⏱️ TIMESTAMPS
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00:00 — Hook: the team argument that never ends
02:05 — Sponsor: CodeCrafters
03:35 — What each protocol actually is (mental model)
05:05 — Mid CTA
05:28 — gRPC with Tonic: .proto file, build.rs, server code
08:55 — REST with Axum: same service, no build step
10:30 — GraphQL with async-graphql + Axum: schema, resolvers, GraphiQL
12:34 — Live benchmarks: wrk + ghz, 4 threads, 200 connections
14:00 — Decision framework: when to use each one
15:05 — The honest 2026 production architecture
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🛠️ VERSIONS USED
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• Tonic 0.12 + prost 0.13
• Axum 0.8
• async-graphql 7 + async-graphql-axum 7
• Rust edition 2024
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📦 CODE FROM THIS VIDEO
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🦀 GO DEEPER
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→ Axum vs Actix vs Warp benchmarks: • I Built the Same API in Axum, Actix, and W...
→ Gupti Series — full Axum app: • Build a One-Time Secret Sharing App in Rus...
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#Rust #gRPC #REST #GraphQL #Tonic #Axum #AsyncGraphql #RustBackend #APIDesign #RustProgramming #Programming2026 #AarambhDevHub #LearnRust #Microservices #BackendDevelopment