GraphQL anonymizer is CLI tool to anonymize schemas and queries by replacing all names with generic values like field22.

For example this schema and query:

type Query{
   mySecret(arg: String): MySecret 
}
type MySecret {
    id: ID
    dontExposeThat: String
}

query MySecretOp{mySecret(arg: "myValue") { id dontExposeThat } }

will be anonymized into:

schema {
  query: Object1
}

type Object1 {
  field1(argument1: String): Object2
}

type Object2 {
  field2: ID
  field3: String
}

query {field1(argument1:"stringValue1") {field2 field3}}

Installation and usage

The easiest way to install it is via npm:

npm i -g graphql-anonymizer

To anonymize a schema and query from a file:

graphql-anonymizer -s schema-file -q query-file 

The -q option is optional, you can also just anonymize a schema:

graphql-anonymizer -s schema-file 

Alternatively the schema file can be read from stdin:

graphql-anonymizer < schema-file

The full list of options is available via --help:

graphql-anonymizer --help

Bugs or feedback

Please open an Issue to raise a bug or other feedback.

Implementation details

GraphQL Anonymizer is a thin wrapper around a class inside GraphQL Java . It is compiled via GraalVM to a native binary and distributed via NPM.

The cross-platform compiling, releasing and testing is done fully automatically via GitHub Actions. Have a look at release.yml and npm if you want to know all the details.