ravendb/dist/esm/Documents/Commands/HeadAttachmentCommand.js

RavenDB client for Node.js

import { RavenCommand } from "../../Http/RavenCommand.js";
import { StringUtil } from "../../Utility/StringUtil.js";
import { throwError } from "../../Exceptions/index.js";
import { StatusCodes } from "../../Http/StatusCode.js";
import { getRequiredEtagHeader } from "../../Utility/HttpUtil.js";
import { HEADERS } from "../../Constants.js";
export class HeadAttachmentCommand extends RavenCommand {
    _documentId;
    _name;
    _changeVector;
    get isReadRequest() {
        return false;
    }
    constructor(documentId, name, changeVector) {
        super();
        if (StringUtil.isNullOrWhitespace(documentId)) {
            throwError("InvalidArgumentException", "DocumentId cannot be null or empty");
        }
        if (StringUtil.isNullOrWhitespace(name)) {
            throwError("InvalidArgumentException", "Name cannot be null or empty");
        }
        this._documentId = documentId;
        this._name = name;
        this._changeVector = changeVector;
        this._responseType = "Empty";
    }
    createRequest(node) {
        const uri = node.url
            + "/databases/" + node.database
            + "/attachments?id=" + encodeURIComponent(this._documentId)
            + "&name=" + encodeURIComponent(this._name);
        const req = {
            method: "HEAD",
            uri
        };
        if (this._changeVector) {
            req.headers[HEADERS.IF_NONE_MATCH] = `"${this._changeVector}"`;
        }
        return req;
    }
    async processResponse(cache, response, bodyStream, url) {
        if (response.status === StatusCodes.NotModified) {
            this.result = this._changeVector;
            return "Automatic";
        }
        if (response.status === StatusCodes.NotFound) {
            this.result = null;
            return "Automatic";
        }
        this.result = getRequiredEtagHeader(response);
        return "Automatic";
    }
}
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