Working (?) courses get func

handlers/courses/get.js

@@ -3,7 +3,7 @@ const db = require('../../services/db');
 
 module.exports.default = async () => {
   try {
-    const courses = await db.get('eg_courses', {});
+    const courses = await db.scan('eg_courses');
 
     return createResponse(200, {
       courses: courses

serverless.yml

@@ -21,6 +21,16 @@ provider:
   name: aws
   runtime: nodejs8.10
   region: us-east-2
+  iamRoleStatements:
+      - Effect: Allow
+        Action:
+          - dynamodb:Query
+          - dynamodb:Scan
+          - dynamodb:GetItem
+          - dynamodb:PutItem
+          - dynamodb:UpdateItem
+          - dynamodb:DeleteItem
+        Resource: "*"
 
 # you can overwrite defaults here
 #  stage: dev
@@ -56,7 +66,7 @@ provider:
 #    - exclude-me-dir/**
 
 functions:
-  hello:
+  courses:
     handler: handlers/courses/get.default
     events:
       - http:
@@ -109,19 +119,23 @@ functions:
 #       Description: "Description for the output"
 #       Value: "Some output value"
 resources:
-  coursesTable:
-    Type: AWS::DynamoDB::Table
-    Properties:
-      TableName: eg_courses
-      AttributeDefinitions:
-        - AttributeName: name
-          AttributeType: s
-      KeySchema:
-        - AttributeName: name
-          KeyType: HASH
-      Tags:
-        - Key: app
-          Value: ecs-grader
+  Resources:
+    coursesTable:
+      Type: AWS::DynamoDB::Table
+      Properties:
+        TableName: eg_courses
+        AttributeDefinitions:
+          - AttributeName: name
+            AttributeType: S
+        KeySchema:
+          - AttributeName: name
+            KeyType: HASH
+        Tags:
+          - Key: app
+            Value: ecs-grader
+        ProvisionedThroughput:
+          ReadCapacityUnits: 1
+          WriteCapacityUnits: 1
 
 plugins:
   - serverless-offline

services/db.js

@@ -21,6 +21,12 @@ const get = async (tableName, keyMap) => {
   return res && res.Item;
 };
 
+const scan = async (tableName) => {
+  const res = await dynamoClient.scan({
+    TableName: tableName
+  }).promise();
+};
+
 const queryByID = async (tableName, idKeyName, id) => {
   // querying by id can be used when we are querying a table
   // that has a sortKey, but we don't need to use the sortKey