@aotimme/urql-exchange-refetch-interval/dist/refetch-interval-exchange.js

An exchange that allows refetching queries at a specified interval

'use strict';

function start(e) {
  return {
    tag: 0,
    0: e
  };
}

function onPush(e) {
  return r => t => {
    var i = !1;
    r((r => {
      if (i) ; else if (0 === r) {
        i = !0;
        t(0);
      } else if (0 === r.tag) {
        var a = r[0];
        t(start((e => {
          if (1 === e) {
            i = !0;
          }
          a(e);
        })));
      } else {
        e(r[0]);
        t(r);
      }
    }));
  };
}

var pipe = (...e) => {
  var r = e[0];
  for (var t = 1, i = e.length; t < i; t++) {
    r = e[t](r);
  }
  return r;
};

const DEFAULT_REFETCH_INTERVAL = 5 * 60 * 1000;
/** Exchange factory that refetches all queries on an interval.
 *
 * @param options - An {@link Options} configuration object.
 * @returns the created refetch-interval {@link Exchange}.
 *
 * @example
 * ```ts
 * refetchIntervalExchange({
 *   // Refetch every second.
 *   refetchInterval: 1000,
 * });
 * ```
 */
const refetchIntervalExchange = (options) => {
    return ({ client, forward }) => {
        const operations = new Map();
        const getRefetchInterval = (op) => {
            const refetchInterval = typeof options.refetchInterval === "function" ? options.refetchInterval(op) : options.refetchInterval;
            if (typeof refetchInterval === "undefined") {
                return DEFAULT_REFETCH_INTERVAL;
            }
            else if (typeof refetchInterval === "boolean") {
                return refetchInterval ? DEFAULT_REFETCH_INTERVAL : 0;
            }
            return refetchInterval;
        };
        return (ops$) => {
            if (typeof window === 'undefined') {
                return forward(ops$);
            }
            const processIncomingOperation = (op) => {
                const currentOperationAndTimeout = operations.get(op.key);
                if (op.kind === 'query') {
                    if (currentOperationAndTimeout) {
                        clearTimeout(currentOperationAndTimeout.timeoutId);
                        operations.delete(op.key);
                    }
                    const refetchInterval = getRefetchInterval(op);
                    if (refetchInterval > 0) {
                        const timeoutId = setTimeout(() => {
                            const requestOperation = client.createRequestOperation('query', op, {
                                ...op.context,
                                requestPolicy: 'cache-and-network',
                            });
                            client.reexecuteOperation(requestOperation);
                        }, refetchInterval);
                        operations.set(op.key, { operation: op, timeoutId });
                    }
                }
                if (op.kind === 'teardown' && currentOperationAndTimeout) {
                    clearTimeout(currentOperationAndTimeout.timeoutId);
                    operations.delete(op.key);
                }
            };
            return forward(pipe(ops$, onPush(processIncomingOperation)));
        };
    };
};

exports.refetchIntervalExchange = refetchIntervalExchange;