cumulocity-cypress
Version:
Cypress commands for Cumulocity IoT
47 lines (46 loc) • 1.78 kB
JavaScript
/**
* C8ySchemaGenerator implementation using quicktype library with target language
* json-schema. From the generated schema, all non-standard keywords are removed
* to ensure compatibility with any json-schema validators.
*
* Quicktype has been reported to cause issues in browser runtimes. If you encounter
* issues with quicktype, consider implementing a custom schema generator.
*/
export class C8yQicktypeSchemaGenerator {
async generate(obj, options = {}) {
let InputData, jsonInputForTargetLanguage, quicktype;
try {
// @ts-expect-error
const quicktypeCore = await import("quicktype-core");
({ InputData, jsonInputForTargetLanguage, quicktype } = quicktypeCore);
}
catch {
throw new Error("quicktype-core is not installed. Please run `npm install quicktype-core` in your project to use this feature.");
}
const { name } = options;
const inputData = new InputData();
const jsonInput = jsonInputForTargetLanguage("json-schema");
await jsonInput.addSource({
name: name || "root",
samples: [JSON.stringify(obj)],
});
inputData.addInput(jsonInput);
const result = await quicktype({
inputData,
lang: "json-schema",
});
const schema = JSON.parse(result.lines.join("\n"));
this.removeNonStandardKeywords(schema);
return schema;
}
removeNonStandardKeywords(schema) {
for (const key in schema) {
if (key.startsWith("qt-")) {
delete schema[key];
}
else if (typeof schema[key] === "object") {
this.removeNonStandardKeywords(schema[key]);
}
}
}
}