This article talks about how to create a simple graphql api to read incident data,

it has a video demo and link to updateset.

Below are various components involved in the setup

GraphQL API, Script include,Fix script to test script include,GraphQL Scripted Resolver

GraphQL Resolver Mappings

Sample rest client curl code

--url https://dev111463.service-now.com/api/now/graphql \

--header 'Authorization: Basic YWRtaWxxxx5hbmlsOk15QWRtaW5QQDU1dzByZA==' \

--header 'Content-Type: application/json' \

--cookie 'JSESSIONID=44109CA8241B7CD5F603C263E0D51154;

glide_user_route=glide.76e8af3a511b2a4fdde7579126346f2b;

BIGipServerpool_dev111463=2710591498.39230.0000;

glide_user_activity=U0N2M18xOjlrZ2hVYS9rYW0xakdXTnhzem9nTkZYO

WNaVllwQVRiTEtJT0pLcExpTDg9Ok40czA4VnlJM2ZtVzRKNXo1WGk1cW5zUGxSdDhPWDd2eVkzY0poa1JmU3M9' \

--data '{"query":"query {\n\tx146833 {\n\t\tvaranGqlInc {\n\t\t\tgetIncident

(id: \"f12ca184735123002728660c4cf6a7ef\")

{\n\t\t\t\tactive\n\t\t\t\tstate\n\t\t\t\tid\n\t\t\t\tpriority\n\t\t\t

\tseverity\n\t\t\t\tdescription\n\t\t\t}\n\t\t}\n\t}\n}\n","operationName":"Operations"}'

Below is a summary of various components demoed in the video.

1. GraphQL API -> This is the API definition that has schema, graphql scripted resolver and

graphql resolver mappings.

2. Script include -> This contains the functions needed to perform CRUD operations in

ServiceNow and provide relevant output to GraphQL API

3. Fix script -> Is used to test the script include to ensure that it has relevant

configuration needed to provide response to API calls.

4. graphql scripted resolver -> Is a script-able configuration that calls script include

5. graphql resolver mapping -> This maps query defined in graphql schema with graphql