awscdk-construct-scte-scheduler
Version:
AWS CDK Construct for scheduling SCTE-35 events using the MediaLive schedule API
45 lines (44 loc) • 1.78 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.createPaginator = createPaginator;
const makePagedClientRequest = async (CommandCtor, client, input, withCommand = (_) => _, ...args) => {
let command = new CommandCtor(input);
command = withCommand(command) ?? command;
return await client.send(command, ...args);
};
function createPaginator(ClientCtor, CommandCtor, inputTokenName, outputTokenName, pageSizeTokenName) {
return async function* paginateOperation(config, input, ...additionalArguments) {
const _input = input;
let token = config.startingToken ?? _input[inputTokenName];
let hasNext = true;
let page;
while (hasNext) {
_input[inputTokenName] = token;
if (pageSizeTokenName) {
_input[pageSizeTokenName] = _input[pageSizeTokenName] ?? config.pageSize;
}
if (config.client instanceof ClientCtor) {
page = await makePagedClientRequest(CommandCtor, config.client, input, config.withCommand, ...additionalArguments);
}
else {
throw new Error(`Invalid client, expected instance of ${ClientCtor.name}`);
}
yield page;
const prevToken = token;
token = get(page, outputTokenName);
hasNext = !!(token && (!config.stopOnSameToken || token !== prevToken));
}
return undefined;
};
}
const get = (fromObject, path) => {
let cursor = fromObject;
const pathComponents = path.split(".");
for (const step of pathComponents) {
if (!cursor || typeof cursor !== "object") {
return undefined;
}
cursor = cursor[step];
}
return cursor;
};