In this session, we will look at 10 common use cases for AWS Lambda such as REST APIs, WebSockets, IoT and building event-driven systems. We will also touch on some of the latest platform features such as Provisioned Concurrency, EFS integration and Lambda Destinations and when and where we should use them.

1. What can you do with
Lambda in 2020?
Yan Cui, @theburningmonk

2. What do you mean by
‘serverless’?

3. “Serverless”

5. Gojko Adzic
It is serverless the same way
WiFi is wireless.
http://bit.ly/2yQgwwb

6. Serverless means…
don’t pay for it if no-one uses it
don’t need to worry about scaling
don’t need to provision and manage servers

7. in other words, it’s a lot like taking a cab

8. Ownership
Fuel
Navigate
To get there!
Focus on
getting there!

9. HW Ownership
OS
Runtime & Scale
Code
Focus on
getting there!
Physical
Servers
Virtual
Machines
Containers Serverless

11. API Gateway IOT Core SNS SQS S3

12. auto-scaled
by demand

13. scales to zero
don’t pay
for idle

14. us-east-1a
us-east-1b
us-east-1c
multi-AZ by
default

15. us-east-1a
us-east-1b
us-east-1c
built-in load
balancing

16. us-east-1
us-west-1
eu-west-1

17. us-east-1
us-west-1
eu-west-1
DynamoDB
global tables

18. multi-region
active-active
us-east-1
us-west-1
eu-west-1

19. AWS user for 10 years
Yan Cui
http://theburningmonk.com
@theburningmonk

20. Yan Cui
http://theburningmonk.com
@theburningmonk
bit.ly/yubl-serverless

21. Developer Advocate @
Yan Cui
http://theburningmonk.com
@theburningmonk

23. Yan Cui
http://theburningmonk.com
@theburningmonk
Independent Consultant
advisetraining delivery

24. realworldserverless.com

25. Learn GraphQL and AppSync by building a
Twitter clone with these technologies
appsyncmasterclass.com

26. ?
what
can
YOU
DO
with
in
2020

27. API Gateway Lambda DynamoDB

28. API Gateway

29. API Gateway
over 70% cheaper

30. ALB
1 LCU gives you
25 new connections per second
3000 active connections per minute
0.4 GB per hour for Lambda function targets
1000 rule evaluations per second
* averaged over an hour

31. 1 TPS, 200ms avg latency, 1KB data processing / req
API Gateway
ALB
$2.5921 x 60s x 60m x 24hr x 30days
@ $1.00 per hour
24hr x 30days @ $0.0225 per hour
+
1 x 24hr x 30days @ $0.008 per hour
$21.96
$9.0721 x 60s x 60m x 24hr x 30days
@ $3.50 per hour
REST
HTTP

32. 1,000 TPS, 200ms avg latency, 1KB data processing / req
API Gateway
ALB
$25921000 x 60s x 60m x 24hr x 30days
@ $1.00 per hour
24hr x 30days @ $0.0225 per hour
+
40 x 24hr x 30days @ $0.008 per hour
$246.6
$90721000 x 60s x 60m x 24hr x 30days
@ $3.50 per hour
REST
HTTP

33. services that pay by uptime are orders-of-magnitude
cheaper when running at scale

34. “What about cold starts? I need predictable latency!”

35. first, try to optimize cold start duration so
they’re within acceptable latency range

36. then, consider using Provisioned Concurrency as a fallback

37. REST APIs

38. “What about websockets?”

39. API Gateway AppSync IoT Core

40. API Gateway AppSync IoT Core

41. API Gateway
Lambda
OnConnect

42. API Gateway
Lambda
OnConnect DynamoDB

43. API Gateway
Lambda
OnConnect DynamoDB
Lambda
OnDisconnect

44. API Gateway DynamoDBLambda

45. API Gateway DynamoDBLambda

46. low-level construct where YOU have to
manage connection mapping

47. no support for broadcasts
(e.g. broadcasting to a million connected users equates to fetching 1M
items from DynamoDB and then make 1M API calls to API Gateway…)

48. API Gateway AppSync IoT Core

52. scalable, easy to use, but requires GraphQL

53. API Gateway AppSync IoT Core

55. requires sig v4 signing
(possibly using credentials obtained through Cognito Identity Pool)

56. messages are always MQTT messages

57. REST APIs
WebSockets

58. “What if I want to build a GraphQL API instead of REST?”

59. schema server data sources
DynamoDB
RDS
ElasticSearch
AppSync
Lambda

60. AWS AppSync
scalable & multi-az out of the box

61. AWS AppSync
scalable & multi-az out of the box
pay as you use ($4.00 per Million)

62. AWS AppSync
scalable & multi-az out of the box
pay as you use ($4.00 per Million)
built-in caching (extra $)

63. AWS AppSync
scalable & multi-az out of the box
pay as you use ($4.00 per Million)
built-in caching (extra $)
built-in metrics through CloudWatch
built-in logging through CloudWatch Logs

64. AWS AppSync
scalable & multi-az out of the box
pay as you use ($4.00 per Million)
built-in caching (extra $)
built-in metrics through CloudWatch
built-in logging through CloudWatch Logs
no servers to manage

65. REST APIs
WebSockets
GraphQL APIs

66. “Can I implement data pipelines with serverless?”

67. Kinesis Lambda
?Publisher(s)

68. realworldserverless.com

69. Kinesis Lambda
?Publisher(s)
Firehose S3 Athena

70. Kinesis Lambda
?Publisher(s)
Firehose S3 Athena
Kinesis Analytics Lambda

71. Kinesis Lambda
?Publisher(s)
Firehose S3 Athena
Kinesis Analytics Firehose
?

72. Kinesis Lambda
?Publisher(s)
Firehose S3 Athena
Kinesis Analytics Kinesis
?

73. REST APIs
WebSockets
GraphQL APIs
Big Data

78. CloudTrail EventBridge Lambda

82. Config EventBridge Lambda

83. REST APIs
WebSockets
GraphQL APIs
Big Data
DevOps/DevSecOps

84. “How do I model complex business workflows?”

85. Step Functions

86. orchestration service that allows you to model
workflows as state machines

87. design with JSON
https://states-language.net/spec.html

93. $25 PER MILLION

94. $25 PER MILLION
15X LAMBDA PRICING!

97. bit.ly/complete-guide-to-aws-step-functions

98. REST APIs
WebSockets
GraphQL APIs
Big Data
DevOps/DevSecOps
Business Workflows

99. “Can I encode videos with Lambda?”

100. S3 Lambda
?

101. S3 Lambda
Elemental
MediaConvert

102. S3 Lambda
Elemental
MediaConvert

103. an X min video file is likely going to take
X mins to encode

104. S3 Lambda Step Functions

105. split

106. Map
split

107. split
Map
…

108. split
Map
…

109. split
Map
…
{ … }
{ … }
{ … }
{ … }
{ … }

110. split
Map
…
{ … }
{ … }
{ … }
{ … }
{ … }
[{ … }, { … } … ]

111. Map
split stitch

112. Map
split stitch

113. Transcode video segments in parallel.
Reduced processing time from ~20 mins
to ~2 mins.

114. REST APIs
WebSockets
GraphQL APIs
Big Data
DevOps/DevSecOps
Video Encoding
Business Workflows

115. “Event-driven architectures are all the rage, how does it look like?”

116. “What do I use as the event bus?”

117. EventBridge SNS
prefer over

118. EventBridge SNS

119. EventBridge
schema discovery &
schema registry

120. content-based filtering
enables a centralized
event bus
EventBridge

121. EventBridge
AWS Services
3rd Partners
Your Application

122. EventBridge
AWS Services
3rd Partners
Your Application
Lambda
Lambda
Lambda

123. EventBridge
AWS Services
3rd Partners
Your Application
Lambda
Lambda
Lambda

124. “How do I handle failures?”

125. DLQ

126. SNS, SQS, Lambda,
EventBridge

127. FAILURE DESTINATION

128. FAILURE DESTINATION

129. FAILURE DESTINATION

130. FAILURE DESTINATION

132. MORE targets
Stream invocations
too!

133. prefer Lambda Destinations to DLQs
(both can be used side-by-side)

134. what about
OnSuccess?

135. OnSuccess

137. REST APIs
WebSockets
GraphQL APIs
Big Data
DevOps/DevSecOps
Event-Driven Architecture
Video Encoding
Business Workflows

139. LambdaAlexa Skills

140. REST APIs
WebSockets
GraphQL APIs
Big Data
DevOps/DevSecOps
Event-Driven Architecture
Video Encoding
Business Workflows
Alexa skills

142. IOT Core Lambda

143. REST APIs
WebSockets
GraphQL APIs
Big Data
DevOps/DevSecOps
Alexa skills
IOT
Event-Driven Architecture
Video Encoding
Business Workflows

144. REST APIs
WebSockets
GraphQL APIs
Big Data
DevOps/DevSecOps
Alexa skills
IOT
Event-Driven Architecture
Video Encoding
Business Workflows

145. “When is serverless not the right choice?”

146. What are your non-functional requirements?

147. Can Lambda meet your performance and scaling requirements?

148. What’s the Total Cost of Ownership (TCO) for serverless?

150. https://go.aws/2XThRxK

151. https://go.aws/2XThRxK

152. But, sometimes, the infrastructure far outweighs staffing cost

155. https://theburningmonk.com/hire-me
AdviseTraining Delivery
“Fundamentally, Yan has improved our team by increasing our
ability to derive value from AWS and Lambda in particular.”
Nick Blair
Tech Lead

156. Learn GraphQL and AppSync by building a
Twitter clone with these technologies
appsyncmasterclass.com

157. Thank You