@graphql-tools/utils
Version:
Common package containing utils and types for GraphQL tools
60 lines (59 loc) • 2.35 kB
JavaScript
import { mapSchema } from './mapSchema.js';
import { MapperKind } from './Interfaces.js';
export function extractExtensionsFromSchema(schema) {
const result = {
schemaExtensions: schema.extensions || {},
types: {},
};
mapSchema(schema, {
[MapperKind.OBJECT_TYPE]: type => {
result.types[type.name] = { fields: {}, type: 'object', extensions: type.extensions || {} };
return type;
},
[MapperKind.INTERFACE_TYPE]: type => {
result.types[type.name] = { fields: {}, type: 'interface', extensions: type.extensions || {} };
return type;
},
[MapperKind.FIELD]: (field, fieldName, typeName) => {
result.types[typeName].fields[fieldName] = {
arguments: {},
extensions: field.extensions || {},
};
const args = field.args;
if (args != null) {
for (const argName in args) {
result.types[typeName].fields[fieldName].arguments[argName] =
args[argName].extensions || {};
}
}
return field;
},
[MapperKind.ENUM_TYPE]: type => {
result.types[type.name] = { values: {}, type: 'enum', extensions: type.extensions || {} };
return type;
},
[MapperKind.ENUM_VALUE]: (value, typeName, _schema, valueName) => {
result.types[typeName].values[valueName] = value.extensions || {};
return value;
},
[MapperKind.SCALAR_TYPE]: type => {
result.types[type.name] = { type: 'scalar', extensions: type.extensions || {} };
return type;
},
[MapperKind.UNION_TYPE]: type => {
result.types[type.name] = { type: 'union', extensions: type.extensions || {} };
return type;
},
[MapperKind.INPUT_OBJECT_TYPE]: type => {
result.types[type.name] = { fields: {}, type: 'input', extensions: type.extensions || {} };
return type;
},
[MapperKind.INPUT_OBJECT_FIELD]: (field, fieldName, typeName) => {
result.types[typeName].fields[fieldName] = {
extensions: field.extensions || {},
};
return field;
},
});
return result;
}