| 1 | import { RenameTypes, RenameRootFields } from '@graphql-tools/wrap';
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| 2 | import { applySchemaTransforms, applyRequestTransforms, applyResultTransforms } from '@graphql-tools/utils';
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| 3 |
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| 4 | class PrefixTransform {
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| 5 | constructor(options) {
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| 6 | this.transforms = [];
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| 7 | const { apiName, config } = options;
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| 8 | let prefix = null;
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| 9 | if (config.value) {
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| 10 | prefix = config.value;
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| 11 | }
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| 12 | else if (apiName) {
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| 13 | prefix = `${apiName}_`;
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| 14 | }
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| 15 | if (!prefix) {
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| 16 | throw new Error(`Transform 'prefix' has missing config: prefix`);
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| 17 | }
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| 18 | const ignoreList = config.ignore || [];
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| 19 | this.transforms.push(new RenameTypes(typeName => (ignoreList.includes(typeName) ? typeName : `${prefix}${typeName}`)));
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| 20 | if (config.includeRootOperations) {
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| 21 | this.transforms.push(new RenameRootFields((typeName, fieldName) => ignoreList.includes(typeName) || ignoreList.includes(`${typeName}.${fieldName}`)
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| 22 | ? fieldName
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| 23 | : `${prefix}${fieldName}`));
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| 24 | }
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| 25 | }
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| 26 | transformSchema(schema) {
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| 27 | return applySchemaTransforms(schema, this.transforms);
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| 28 | }
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| 29 | transformRequest(request) {
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| 30 | return applyRequestTransforms(request, this.transforms);
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| 31 | }
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| 32 | transformResult(result) {
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| 33 | return applyResultTransforms(result, this.transforms);
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| 34 | }
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| 35 | }
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| 36 |
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| 37 | export default PrefixTransform;
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| 38 |
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