├── hexalDelete.js
├── hexalGetItems.js
├── hexalPut.js
└── hexalUpdateItem.js


/hexalDelete.js:
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 1 | 'use strict';
 2 | const AWS = require('aws-sdk');
 3 | 
 4 | exports.handler = async (event, context) => {
 5 |   const documentClient = new AWS.DynamoDB.DocumentClient();
 6 | 
 7 |   let responseBody = "";
 8 |   let statusCode = 0;
 9 | 
10 |   const { id } = event.pathParameters;
11 | 
12 |   const params = {
13 |     TableName: "Products",
14 |     Key: {
15 |       id: id
16 |     }
17 |   };
18 | 
19 |   try {
20 |     const data = await documentClient.delete(params).promise();
21 |     responseBody = JSON.stringify(data);
22 |     statusCode = 204;
23 |   } catch(err) {
24 |     responseBody = `Unable to delete product: ${err}`;
25 |     statusCode = 403;
26 |   }
27 | 
28 |   const response = {
29 |     statusCode: statusCode,
30 |     headers: {
31 |       "Content-Type": "application/json"
32 |     },
33 |     body: responseBody
34 |   };
35 | 
36 |   return response;
37 | };


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/hexalGetItems.js:
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 1 | 'use strict';
 2 | const AWS = require('aws-sdk');
 3 | 
 4 | exports.handler = async (event, context) => {
 5 |   const documentClient = new AWS.DynamoDB.DocumentClient();
 6 | 
 7 |   let responseBody = "";
 8 |   let statusCode = 0;
 9 | 
10 |   const params = {
11 |     TableName: "Products"
12 |   };
13 | 
14 |   try {
15 |     const data = await documentClient.scan(params).promise();
16 |     responseBody = JSON.stringify(data.Items);
17 |     statusCode = 200;
18 |   } catch(err) {
19 |     responseBody = `Unable to get products: ${err}`;
20 |     statusCode = 403;
21 |   }
22 | 
23 |   const response = {
24 |     statusCode: statusCode,
25 |     headers: {
26 |       "Content-Type": "application/json"
27 |     },
28 |     body: responseBody
29 |   };
30 | 
31 |   return response;
32 | };


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/hexalPut.js:
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 1 | 'use strict';
 2 | const AWS = require('aws-sdk');
 3 | 
 4 | exports.handler = async (event, context) => {
 5 |   const documentClient = new AWS.DynamoDB.DocumentClient();
 6 | 
 7 |   let responseBody = "";
 8 |   let statusCode = 0;
 9 | 
10 |   const { id, productname } = JSON.parse(event.body);
11 | 
12 |   const params = {
13 |     TableName: "Products",
14 |     Item: {
15 |       id: id,
16 |       productname: productname
17 |     }
18 |   };
19 | 
20 |   try {
21 |     const data = await documentClient.put(params).promise();
22 |     responseBody = JSON.stringify(data);
23 |     statusCode = 201;
24 |   } catch(err) {
25 |     responseBody = `Unable to put product: ${err}`;
26 |     statusCode = 403;
27 |   }
28 | 
29 |   const response = {
30 |     statusCode: statusCode,
31 |     headers: {
32 |       "Content-Type": "application/json"
33 |     },
34 |     body: responseBody
35 |   };
36 | 
37 |   return response;
38 | };


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/hexalUpdateItem.js:
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 1 | 'use strict';
 2 | const AWS = require('aws-sdk');
 3 | 
 4 | exports.handler = async (event, context) => {
 5 |   const documentClient = new AWS.DynamoDB.DocumentClient();
 6 | 
 7 |   let responseBody = "";
 8 |   let statusCode = 0;
 9 | 
10 |   const { id, productname } = JSON.parse(event.body);
11 | 
12 |   const params = {
13 |     TableName: "Products",
14 |     Key: {
15 |       id: id
16 |     },
17 |     UpdateExpression: "set productname = :n",
18 |     ExpressionAttributeValues: {
19 |       ":n": productname
20 |     },
21 |     ReturnValues: "UPDATED_NEW"
22 |   };
23 | 
24 |   try {
25 |     const data = await documentClient.update(params).promise();
26 |     responseBody = JSON.stringify(data);
27 |     statusCode = 204;
28 |   } catch(err) {
29 |     responseBody = `Unable to update product: ${err}`;
30 |     statusCode = 403;
31 |   }
32 | 
33 |   const response = {
34 |     statusCode: statusCode,
35 |     headers: {
36 |       "Content-Type": "application/json"
37 |     },
38 |     body: responseBody
39 |   };
40 | 
41 |   return response;
42 | };


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