The document contains technical insights from Brittany Martin, an engineering lead, discussing various topics related to Ruby on Rails, AWS Lambda, and serverless infrastructure. It includes code examples for GitHub API interaction, S3 file uploads, and highlights lessons learned such as starting small and embracing serverless solutions. Additionally, it provides contact information and links to related podcasts and resources.

1. L E S S
B R I T T A N Y M A R T I N
W N B . R B

2. ENGINEERING
LEAD @
TEXTUS

3. HOST OF THE
5BY5
RUBY ON RAILS
PODCAST

4. O p e n
I n v i t e
W N B . r b

5. C H A L L E N G E
T H E
& A B A C K S T O R Y

6. C R E A T I V E P R E S E N T A T I O N
T E M P L A T E
E n g
K P I
D a s h b o a r d

7. Set Baseline: Time to Restore
Set Baseline: Cycle Time
Set Baseline: Lead Time
Set Baseline: Deployment Frequency

8. S o u r c e s

9. Solve
with
Ruby

10. AWS Lambda
Handler for Ruby

11. UPLOAD
ZIP FILE
EDIT
INLINE
UPLOAD
FROM S3

12. G e m l e s s &
S e r v e r l e s s

13. h t t p s : / /
j h a w t h o r n . g i t h u b . i o
/ c u r l - t o - r u b y /
C r e d i t : J o h n H a w t h o r n

14. require ‘octokit’
@client = Octokit::Client.new
releases = @client.releases @repo
accept = 'application/vnd.github.v3+json'
uri = URI.parse("https://api.github.com/repos/#{@repo}/pulls?state=all&per_page=100")
headers = {
'Authorization' => "Bearer #{ENV['GITHUB_ACCESS_TOKEN']}",
'Accept' => accept,
'Range' => '; max=1000'
}
response = Net::HTTP.start(uri.host, uri.port, { use_ssl: uri.scheme == 'https' }) do |http|
http.request_get(uri.path, headers)
end
JSON.parse(response.body)

15. G I T H U B
H E R O K U
S TAT U S PA G E
C L U B H O U S E

16. def fetch_endpoint(uri, accept, auth, token)
headers = {
auth => token,
'Accept' => accept
}
response = Net::HTTP.start(uri.host, uri.port, { use_ssl: uri.scheme == 'https' }) do |http|
http.request_get(uri.path, headers)
end
JSON.parse(response.body)
end

17. C r e d i t : H a l o
F i n a l
B o s s

18. require ‘aws-sdk-s3’
Aws.config.update(credentials:
Aws::Credentials.new(ENV['AWS_ACCESS'],
ENV['AWS_SECRET']))
s3 = Aws::S3::Resource.new(region: 'us-east-1')
PROVIDERS.each do |provider|
obj = s3.bucket(‘warehouse').object("#{provider}.csv")
obj.upload_file(File.open("/tmp/#{provider}.csv"))
end

19. uri = URI.parse("https://.s3.amazonaws.com/")
request = Net::HTTP::Put.new(uri)
request["Host"] = ".s3.amazonaws.com"
request["Date"] = Time.now
request["Content-Type"] = "application/x-compressed-tar"
request["Authorization"] = "Authorization: AWS
#{s3_access_key}:#{signature_hash}”
https://#{bucket}.s3.amazonaws.com/#{file_to_upload}
req_options = {
use_ssl: uri.scheme == "https",
}
response = Net::HTTP.start(uri.hostname, uri.port,
req_options) do |http|
http.request(request)
end

20. L e s s o n s
•Cognizant
•Start Small
•Serverless

21. T H A N K
Y O U
b r i t t a n y . j i l l . m a r t i n @ g m a i l . c o m
h t t p s : / / 5 b y 5 . t v / r u b y o n r a i l s
h t t p s : / / b r i t t a n y m a r t i n . d e v / p o d c a s t s /