Batch Link

Purpose

An Apollo Link to allow batching of multiple operations into a single request. For example, the apollo-link-batch-http uses this link to batch operations into a single http request.

Installation

npm install apollo-link-batch --save

Usage

import { BatchLink } from "apollo-link-batch";

const link = new BatchLink({
  batchHandler: (operations: Operation[], forward: NextLink) => Observable<FetchResult[]> | null
});

Options

Batch Link takes an object with three options on it to customize the behavior of the link. The only required option is the batchHandler function

|name|value|default|required| |---|---|---|---| |batchInterval|number|10|false| |batchMax|number|0|false| |batchHandler|(operations: Operation[], forward: NextLink) => Observable<FetchResult[]> | null|NA|true|

Context

The Batch Link does not use the context for anything