Question 1

How to parse a GraphQL query string with graphql-parser in Rust?

Accepted Answer

Add the crate to Cargo.toml, then use functions like `parse_query` from the library. For example, `graphql_parser::parse_query(&query_string)` returns an AST that you can manipulate or analyze programmatically.

Question 2

Does graphql-parser support GraphQL subscriptions?

Accepted Answer

Yes, it supports the GraphQL subscriptions extension, allowing parsing of subscription queries as part of the AST, as mentioned in the README under supported extensions.

Question 3

GraphQL parser rust vs juniper: which should I use?

Accepted Answer

GraphQL Parser is for low-level syntax parsing and formatting, while Juniper is a full GraphQL server framework. Use graphql-parser for tooling like linters or formatters; choose Juniper if you need query execution and resolver integration.

Question 4

How to format a GraphQL schema using graphql-parser?

Accepted Answer

First parse the schema with `parse_schema`, then use the `format` function on the AST to get a consistently styled string. This is useful for generating clean schema definitions in documentation or code.

Question 5

Is graphql-parser good for building a GraphQL linter?

Accepted Answer

Yes, its AST representation makes it ideal for syntax analysis in linters, but you'll need to implement custom rules for semantic validation, as it doesn't include built-in schema compliance checks.

Question 6

What performance benchmarks exist for graphql-parser?

Accepted Answer

The library is designed for performance, but specific benchmarks aren't detailed in the README; check the repository or documentation for community tests or consider running your own for critical applications.

graphql-parser

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