GraphQL + Third Party API = | Роман Сенин | Zlit Tech

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Развитие GraphQL тулинга привносит новые возможности работы со стороними сервисами. Я расскажу про свой опыт интеграции GraphQL c API Facebook/AWS/DevTools.

i’m roman
github: rastopyr
twitter: rastopyr_ua
software engineer
indiehacker
father

based on true story…

story 1
about product

redash.co
tracking ad perfomance

Marketing API

redash v1

support rest endpoints is hard
problem №1

/api/fb/campaings
/api/fb/campaings/:id/adsets
/api/fb/adsets
…
…
/api/fb/campaings/:id
support rest endpoints is hard

no REST - no pain

problem №2
SDK way
SDK

graphql is solution

🎉 redash v2 🎉
with graphql

🎉 redash v2 🎉
SDK

SDK in one place

SDK in one place
• validation
• aggregate requests
• pagination
• watch on limits
• …

facebook API endpoint
=
graphql resolver
facebook data type
=
graphql data type
no rest

relationships
in schema

graphql + TypeScript

code first way
SDL first way
and

code first way
1. define ts

define TS

code first way
1. define ts
2. implement resolver

implement resolver

3. define gql types
1. define ts
2. implement resolver
code first way

define gql type

naming convention

4. make schema
1. define ts
2. implement endpoint
code first way
3. define gql types

make schema

support static type checking

TS Definitions
Schema
API
type safe vertical
dev flow
direction
based on third party API

enough?

operations for computations

ROAS
Engagment Rate
operations for computations

update scheme on the fly
operations for computations

update scheme on the fly

cons

eat quota
•n + 1 ( cost analysis )
•big query ( queue in server )
•when service in scaling ( queue in infra )

save traffic
batch requests

pros

same patterns

type-safe
• TS interfaces for developers
• GraphQL API for clients

playground ❤️

story 2
about cloud

AWS have
~4000 methods

sdk
generated from scheme

service scheme

graphql scheme
generated from scheme

1. generated from scheme
graphql server for AWS
2. map resolvers to sdk

aws graphql demo

Rastopyr/zlit-graphql-demos

graphql-compose/graphql-
compose-aws
alternative implementation

pros
•auto-generated
•extended
•sync with schema
•versioning out of the box

cons
•no way to query custom fields from sdk

story 3
about hooks

webhooks

API’s want say
webhooks

Event
POST call
to your URL
handle
request
webhooks

webhook payload

github
dropbox
stripe
bitbucket
mailchimp
facebook
sendgrid
twitter
hubspot twillio
and more…

how to handle webhooks
1.convert to gql query
2. map to gql type

webhook types in schema

isolated webhook resolver

realtime with Subscriptions

webhook
graphql
server
clients
realtime with Subscriptions

webhook graphql demo

Rastopyr/zlit-graphql-demos

pros
•custom resolver for custom webhook
•no dependencies
•based on empty graphql server

cons
•stateful

thanks!
twitter: rastopyr_ua
Rastopyr/zlit-graphql-demos

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GraphQL + Third Party API = | Роман Сенин | Zlit Tech

1.

2. i’m roman github: rastopyr twitter: rastopyr_ua software engineer indiehacker father

3. based on true story…

4. story 1 about product

5. redash.co tracking ad perfomance

6. Marketing API

8. support rest endpoints is hard problem №1

9. /api/fb/campaings /api/fb/campaings/:id/adsets /api/fb/adsets … … /api/fb/campaings/:id support rest endpoints is hard

10. no REST - no pain

11. problem №2 SDK way SDK

12. graphql is solution

13. 🎉 redash v2 🎉 with graphql

14. 🎉 redash v2 🎉 SDK

15. SDK in one place

16. SDK in one place • validation • aggregate requests • pagination • watch on limits • …

17. facebook API endpoint = graphql resolver facebook data type = graphql data type no rest

18. relationships in schema

19.

20.

21. graphql + TypeScript

22. code first way SDL first way and

23. code first way 1. define ts

25. code first way 1. define ts 2. implement resolver

26. implement resolver

27. 3. define gql types 1. define ts 2. implement resolver code first way

28. define gql type

29. naming convention

30. 4. make schema 1. define ts 2. implement endpoint code first way 3. define gql types

31. make schema

32. support static type checking

33. TS Definitions Schema API type safe vertical dev flow direction based on third party API

35. operations for computations

36. ROAS Engagment Rate operations for computations

37. update scheme on the fly operations for computations

38. update scheme on the fly

39.

41. eat quota •n + 1 ( cost analysis ) •big query ( queue in server ) •when service in scaling ( queue in infra )

42. save traffic batch requests

44. same patterns

45. type-safe • TS interfaces for developers • GraphQL API for clients

46. playground ❤️

47. story 2 about cloud

48.

49.

50. AWS have ~4000 methods

51. sdk generated from scheme

52. service scheme

53. graphql scheme generated from scheme

54. 1. generated from scheme graphql server for AWS 2. map resolvers to sdk

55. aws graphql demo

56. Rastopyr/zlit-graphql-demos

57. graphql-compose/graphql- compose-aws alternative implementation

58. pros •auto-generated •extended •sync with schema •versioning out of the box

59. cons •no way to query custom fields from sdk

60. story 3 about hooks

62. API’s want say webhooks

63. Event POST call to your URL handle request webhooks

64. webhook payload

65. github dropbox stripe bitbucket mailchimp facebook sendgrid twitter hubspot twillio and more…

66. how to handle webhooks 1.convert to gql query 2. map to gql type

67. webhook types in schema

68. isolated webhook resolver

69. realtime with Subscriptions

70. webhook graphql server clients realtime with Subscriptions

71. webhook graphql demo

72. Rastopyr/zlit-graphql-demos

73. pros •custom resolver for custom webhook •no dependencies •based on empty graphql server

74. cons •stateful

75. thanks! twitter: rastopyr_ua Rastopyr/zlit-graphql-demos