graphql-request/build/layers/2_generator/code/Scalar.js

Minimal GraphQL client supporting Node and browsers for scripts or simple apps.

import { createCodeGenerator } from '../createCodeGenerator.js';
export const { generate: generateScalar, moduleName: moduleNameScalar } = createCodeGenerator(`Scalar`, (config) => {
    let code = ``;
    // todo test case for when this is true
    const needsDefaultCustomScalarImplementation = config.typeMapByKind.GraphQLScalarTypeCustom.length > 0
        && !config.options.customScalars;
    const StandardScalarNamespace = `StandardScalar`;
    code += `

  ${needsDefaultCustomScalarImplementation
        ? `import * as ${StandardScalarNamespace} from '${config.libraryPaths.scalars}'`
        : ``}

    export * from '${config.libraryPaths.scalars}'
    ${config.options.customScalars ? `export * from '${config.importPaths.customScalarCodecs}'` : ``}
  `;
    if (needsDefaultCustomScalarImplementation) {
        console.log(`WARNING: Custom scalars detected in the schema, but you have not created a custom scalars module to import implementations from.`);
        code += `
${config.typeMapByKind.GraphQLScalarTypeCustom
            .flatMap((_) => {
            return [
                `export const ${_.name} = ${StandardScalarNamespace}.String`,
                `export type ${_.name} = ${StandardScalarNamespace}.String`,
            ];
        }).join(`\n`)}
    `;
    }
    return code;
});
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