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Rust GraphQL — Building GraphQL APIs with async-graphql and Juniper

DodaTech Updated 2026-06-28 1 min read

In this tutorial, you will learn about Rust Graphql. We cover key concepts, practical examples, and best practices to help you master this topic.

Rust GraphQL APIs use async-graphql for code-first schema definition and Juniper for macro-based GraphQL with subscriptions and dataloader.

What You'll Learn

  • Schema definition with async-graphql
  • Queries and mutations
  • Object types
  • Context and dataloader

Why It Matters

GraphQL provides flexible data fetching. DodaZIP uses GraphQL for its dashboard API.

Real-World Use

Flexible APIs, mobile backends, real-time subscriptions, data aggregation.

[dependencies]
async-graphql = "7.0"
async-graphql-axum = "7.0"

use async_graphql::*;

struct Query;

#[Object]
impl Query {
    async fn hello(&self) -> String {
        "Hello, World!".to_string()
    }

    async fn greet(&self, name: String) -> String {
        format!("Hello, {}!", name)
    }
}

struct Mutation;

#[Object]
impl Mutation {
    async fn add_user(&self, name: String, email: String) -> User {
        User { id: 1, name, email }
    }
}

#[derive(SimpleObject)]
struct User {
    id: i32,
    name: String,
    email: String,
}

let schema = Schema::new(Query, Mutation, EmptySubscription);
// Use with axum: async_graphql_axum::GraphQL
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