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@aws-amplify/graphql-api-construct

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AppSync GraphQL Api Construct using Amplify GraphQL Transformer.

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import { Readable } from "stream"; export class ReadFromBuffers extends Readable { constructor(options) { super(options); this.numBuffersRead = 0; this.buffersToRead = options.buffers; this.errorAfter = typeof options.errorAfter === "number" ? options.errorAfter : -1; } _read(size) { if (this.errorAfter !== -1 && this.errorAfter === this.numBuffersRead) { this.emit("error", new Error("Mock Error")); return; } if (this.numBuffersRead >= this.buffersToRead.length) { return this.push(null); } return this.push(this.buffersToRead[this.numBuffersRead++]); } }