Graphene Custom Directives

A collection of custom GraphQL directives for (Graphene)[https://github.com/graphql-python/graphene]

• Free software: BSD license
• Documentation: https://graphene-custom-directives.readthedocs.org.

Number Formatting

• Floor

query {
    stringValue(value: "3.14") @floor
    floatValue(value: 3.14) @floor
}

// => { stringValue: "3.0", floatValue: 3.0 }

• Ceil

query {
    stringValue(value: "3.14") @ceil
    floatValue(value: 3.14) @ceil
}

// => { stringValue: "4.0", floatValue: 4.0 }

String formatting directives

• Default value:

query {
    input @default(to: "YEAH")
}

// => { input: "YEAH" }

• Base64 encode

query {
    stringValue(value: "YES") @base64
}

// => { stringValue: "Tm9uZQ==" }

• Uppercase:

query {
    input(value: "FOO BAR") @lowercase
}

// => { input: "foo bar" }

• Lowercase:

query {
    input(value: "foo BAR") @uppercase
}

// => { input: "FOO BAR" }

• Capitalize:

query {
    input(value: "foo BAR") @capitalize
}

// => { input: "Foo Bar" }

• Number formatting

query {
    stringValue(value: "3.14") @number(as: "0.4f")
}

// => { stringValue: "3.1400" }

• Currency formatting

query {
    stringValue(value: "150000") @currency
}

// => { stringValue: "$150,000" }

List Directives

• Sample

query {
    listValue(value: [1, 2, 3]) @sample(k: 1)
}

// => { listValue: [2] }

• Shuffle

query {
    listValue(value: [1, 2, 3]) @shuffle
}

// => { listValue: [2, 1, 3] }

Misc.

You can also use multiple directives, executed from left to right:

query {
    stringValue(value: "3.14") @ceil @number(as: "0.4f")
}

// => { stringValue: "4.0000" }