cod-dicomweb-server/dist/esm/metadataManager.js

A wadors server proxy that get data from a Cloud Optimized Dicom format.

import { CustomError } from './classes/customClasses';
import { createMetadataJsonUrl } from './classes/utils';
class MetadataManager {
    metadata = {};
    constructor() { }
    addDeidMetadata(jsonMetadata) {
        const { deid_study_uid, deid_series_uid, cod } = jsonMetadata;
        if (!cod || !deid_study_uid || !deid_series_uid) {
            console.warn('Missing required metadata properties: cod, deid_study_uid, or deid_series_uid');
            return;
        }
        for (const deid_sop_uid in cod.instances) {
            const instance = cod.instances[deid_sop_uid];
            instance.metadata.DeidStudyInstanceUID = { Value: [deid_study_uid] };
            instance.metadata.DeidSeriesInstanceUID = { Value: [deid_series_uid] };
            instance.metadata.DeidSopInstanceUID = { Value: [deid_sop_uid] };
        }
    }
    getMetadataFromCache(url) {
        return this.metadata[url];
    }
    async getMetadata(params, headers) {
        const url = createMetadataJsonUrl(params);
        if (!url) {
            throw new CustomError('Error creating metadata json url');
        }
        const cachedMetadata = this.getMetadataFromCache(url);
        if (cachedMetadata) {
            return cachedMetadata;
        }
        try {
            const response = await fetch(url, { headers });
            if (!response.ok) {
                throw new CustomError(`Failed to fetch metadata: ${response.statusText}`);
            }
            const data = await response.json();
            this.addDeidMetadata(data);
            this.metadata[url] = data;
            return data;
        }
        catch (error) {
            console.error(error);
            throw error;
        }
    }
}
export default MetadataManager;