rxdb/src/plugins/replication-graphql/helper.ts

A local-first realtime NoSQL Database for JavaScript applications - https://rxdb.info/

import type { RxGraphQLReplicationClientState, RxGraphQLReplicationQueryBuilderResponseObject } from '../../types/index.d.ts';
import { ensureNotFalsy, getProperty } from '../../plugins/utils/index.ts';

export const GRAPHQL_REPLICATION_PLUGIN_IDENTITY_PREFIX = 'graphql';

export interface GraphQLError {
    message: string;
    locations: Array<{
        line: number;
        column: number;
    }>;
    path: string[];
}
export type GraphQLErrors = Array<GraphQLError>;



export function graphQLRequest(
    fetchRequest: WindowOrWorkerGlobalScope['fetch'],
    httpUrl: string,
    clientState: RxGraphQLReplicationClientState,
    queryParams: RxGraphQLReplicationQueryBuilderResponseObject
) {

    const headers = new Headers(clientState.headers || {});
    headers.append('Content-Type', 'application/json');

    const req = new Request(
        ensureNotFalsy(httpUrl),
        {
            method: 'POST',
            body: JSON.stringify(queryParams),
            headers,
            credentials: clientState.credentials,
        }
    );
    
    return fetchRequest(req)
        .then((res) => res.json())
        .then((body) => {
            return body;
        });
}

export function getDataFromResult(
    result: { data: object },
    userDefinedDataPath: string | string[] | undefined
): any {
    const dataPath = userDefinedDataPath || ['data', Object.keys(result.data)[0]];
    const data: any = getProperty(result, dataPath);
    return data;
}