# Feature Comparison

Comparing Features of Other Rust GraphQL Implementations

**Please let me know if there is anything wrong.**

|                                                                        | async-graphql | juniper(0.15.1) |
|------------------------------------------------------------------------|---------------|-----------------|
| async/await                                                            | 👍            | 👍️             |
| Rustfmt friendly(No DSL)                                               | 👍            | ⛔️              |
| Boilerplate                                                            | Less          | Some            |         
| Type Safety                                                            | 👍            | 👍              |
| Query                                                                  | 👍            | 👍              |
| Mutation                                                               | 👍            | 👍              |
| Interfaces                                                             | 👍            | 👍              |
| Union                                                                  | 👍            | 👍              |
| Dataloading                                                            | 👍            | 👍              |
| Custom Scalar                                                          | 👍            | 👍              |
| Custom Error                                                           | 👍            | 👍              |
| Custom Directive                                                       | 👍            | ⛔               |
| [Oneof Input Object](https://github.com/graphql/graphql-spec/pull/825) | 👍            | ⛔               |
| [Oneof Field](https://github.com/graphql/graphql-spec/pull/825)        | 👍            | ⛔               |
| Extensions                                                             | 👍            | ⛔️              |
| Cursor Connections                                                     | 👍            | ⛔️              |
| Query complexity/depth                                                 | 👍            | ⛔️              | 
| Input validators                                                       | 👍            | ⛔️              |
| Field guard                                                            | 👍            | ⛔️              |
| Multipart request(upload file)                                         | 👍            | ⛔️              |
| Subscription                                                           | 👍            | 👍️             |
| Opentracing                                                            | 👍            | ⛔️              |
| Apollo Federation                                                      | 👍            | ⛔️              |
| Apollo Tracing                                                         | 👍            | ⛔️              |
| Apollo Persisted Queries                                               | 👍            | ⛔️              |
| Disabling introspection                                                | 👍            | ⛔️              |