@ceramicnetwork/stream-model-instance-handler/lib/schema-utils.js

Ceramic Model Instance Document stream handler

import Ajv from 'ajv/dist/2020.js';
import addFormats from 'ajv-formats';
function buildAjv() {
    const validator = new Ajv({
        strict: true,
        allErrors: true,
        allowMatchingProperties: false,
        ownProperties: false,
        unevaluated: false,
    });
    addFormats(validator);
    return validator;
}
export class SchemaValidation {
    constructor() {
        this.ajv = buildAjv();
    }
    validateSchema(content, schema, schemaId) {
        let existingSchema = this.ajv.getSchema(schemaId);
        if (!existingSchema) {
            this.ajv.addSchema(schema, schemaId);
            existingSchema = this.ajv.getSchema(schemaId);
        }
        const isValid = existingSchema(content);
        if (!isValid) {
            const errorMessages = this.ajv.errorsText(existingSchema.errors);
            throw new Error(`Validation Error: ${errorMessages}`);
        }
    }
}
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