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dynamodb: request item
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Michael Hirschler
parent
0c3a191859
commit
cfe80b454d
149
packages/nodes-base/nodes/Aws/AwsDynamoDB.node.ts
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149
packages/nodes-base/nodes/Aws/AwsDynamoDB.node.ts
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@ -0,0 +1,149 @@
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import {IExecuteFunctions} from 'n8n-core';
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import {
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IDataObject,
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INodeExecutionData,
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INodeType,
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INodeTypeDescription,
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} from 'n8n-workflow';
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import { awsApiRequestREST } from './GenericFunctions';
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function decodeAttribute(type: string, attribute: any): any {
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switch (type) {
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case 'S':
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return String(attribute);
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case 'SS':
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case 'M':
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case 'L':
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case 'NS':
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return Array(...attribute);
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case 'N':
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return Number(attribute);
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case 'BOOL':
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return Boolean(attribute);
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}
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}
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export class AwsDynamoDB implements INodeType {
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description: INodeTypeDescription = {
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displayName: 'AWS DynamoDB',
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name: 'awsDynamoDb',
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icon: 'file:dynamodb.svg',
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group: ['transform'],
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version: 1,
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description: 'Query data on AWS DynamoDB',
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defaults: {
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name: 'AWS DynamoDB',
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color: '#2273b9',
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},
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inputs: ['main'],
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outputs: ['main'],
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credentials: [
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{
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name: 'aws',
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required: true,
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},
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],
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properties: [
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{
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displayName: 'Resource',
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name: 'resource',
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type: 'options',
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options: [
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{
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name: 'Item',
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value: 'item',
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description: 'Query Items',
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},
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{
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name: 'Query',
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value: 'query',
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description: 'Invoke a function',
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},
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],
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default: 'item',
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description: 'The resource to operate on.',
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},
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{
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displayName: 'Operation',
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name: 'operation',
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type: 'options',
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displayOptions: {
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show: {
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resource: ['item'],
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}
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},
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options: [
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{
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name: 'GetItem',
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value: 'get',
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description: 'Read an item.',
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},
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],
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default: 'get',
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description: 'The operation to perform.',
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},
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{
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displayName: 'Table',
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name: 'table',
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type: 'string',
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required: true,
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displayOptions: {
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show: {
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resource: ['item', 'query'],
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}
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},
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default: '',
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description: 'Specify the table you want to operate on',
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},
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{
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displayName: 'Item',
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name: 'item',
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type: 'string',
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required: true,
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displayOptions: {
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show: {
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resource: ['item'],
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operation: ['get'],
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}
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},
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default: '',
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description: 'Specify the Item you want to operate on',
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}
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],
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};
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async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
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const resource = this.getNodeParameter('resource', 0) as string;
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const operation = this.getNodeParameter('operation', 0) as string;
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if (resource === 'item') {
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if (operation === 'get') {
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const table = this.getNodeParameter('table', 0) as string;
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const item = this.getNodeParameter('item', 0) as string;
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const body = {
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TableName: table,
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Key: {id: {S: item}},
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};
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const headers = {
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'X-Amz-Target': 'DynamoDB_20120810.GetItem',
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'Content-Type': 'application/x-amz-json-1.0'
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};
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const response = await awsApiRequestREST.call(this, 'dynamodb', 'POST', '/', JSON.stringify(body), headers)
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const _item: any = {};
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for (const [attribute, value] of Object.entries(response.Item)) {
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const [type, content] = Object.entries(value)[0];
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_item[attribute] = decodeAttribute(type, content);
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}
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return [this.helpers.returnJsonArray(_item)];
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}
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}
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return [[]];
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}
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}
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13
packages/nodes-base/nodes/Aws/dynamodb.svg
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13
packages/nodes-base/nodes/Aws/dynamodb.svg
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@ -0,0 +1,13 @@
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<svg width="256px" height="289px" viewBox="0 0 256 289" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" preserveAspectRatio="xMidYMid">
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<g>
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<path d="M165.258,288.501 L168.766,288.501 L226.027,259.867 L226.98,258.52 L226.98,29.964 L226.027,28.61 L168.766,0 L165.215,0 L165.258,288.501" fill="#5294CF"/>
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<path d="M90.741,288.501 L87.184,288.501 L29.972,259.867 L28.811,257.87 L28.222,31.128 L29.972,28.61 L87.184,0 L90.785,0 L90.741,288.501" fill="#1F5B98"/>
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<path d="M87.285,0 L168.711,0 L168.711,288.501 L87.285,288.501 L87.285,0 Z" fill="#2D72B8"/>
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<path d="M256,137.769 L254.065,137.34 L226.437,134.764 L226.027,134.968 L168.715,132.676 L87.285,132.676 L29.972,134.968 L29.972,91.264 L29.912,91.296 L29.972,91.168 L87.285,77.888 L168.715,77.888 L226.027,91.168 L247.096,102.367 L247.096,95.167 L256,94.193 L255.078,92.395 L226.886,72.236 L226.027,72.515 L168.715,54.756 L87.285,54.756 L29.972,72.515 L29.972,28.61 L0,63.723 L0,94.389 L0.232,94.221 L8.904,95.167 L8.904,102.515 L0,107.28 L0,137.793 L0.232,137.769 L8.904,137.897 L8.904,150.704 L1.422,150.816 L0,150.68 L0,181.205 L8.904,185.993 L8.904,193.426 L0.373,194.368 L0,194.088 L0,224.749 L29.972,259.867 L29.972,215.966 L87.285,233.725 L168.715,233.725 L226.196,215.914 L226.96,216.249 L254.781,196.387 L256,194.408 L247.096,193.426 L247.096,186.142 L245.929,185.676 L226.886,195.941 L226.196,197.381 L168.715,210.584 L168.715,210.6 L87.285,210.6 L87.285,210.584 L29.972,197.325 L29.972,153.461 L87.285,155.745 L87.285,155.801 L168.715,155.801 L226.027,153.461 L227.332,154.061 L254.111,151.755 L256,150.832 L247.096,150.704 L247.096,137.897 L256,137.769" fill="#1A476F"/>
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<path d="M226.027,215.966 L226.027,259.867 L256,224.749 L256,194.288 L226.2,215.914 L226.027,215.966" fill="#2D72B8"/>
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<path d="M226.027,197.421 L226.2,197.381 L256,181.353 L256,150.704 L226.027,153.461 L226.027,197.421" fill="#2D72B8"/>
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<path d="M226.2,91.208 L226.027,91.168 L226.027,134.968 L256,137.769 L256,107.135 L226.2,91.208" fill="#2D72B8"/>
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<path d="M226.2,72.687 L256,94.193 L256,63.731 L226.027,28.61 L226.027,72.515 L226.2,72.575 L226.2,72.687" fill="#2D72B8"/>
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</g>
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</svg>
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After Width: | Height: | Size: 2.2 KiB |
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@ -283,6 +283,7 @@
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"dist/nodes/Autopilot/Autopilot.node.js",
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"dist/nodes/Autopilot/AutopilotTrigger.node.js",
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"dist/nodes/Aws/AwsLambda.node.js",
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"dist/nodes/Aws/AwsDynamoDB.node.js",
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"dist/nodes/Aws/Comprehend/AwsComprehend.node.js",
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"dist/nodes/Aws/Rekognition/AwsRekognition.node.js",
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"dist/nodes/Aws/S3/AwsS3.node.js",
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