Example cURL to query GraphQL endpoint

cURL_example.md

cURL example to test the query

curl --header "Content-Type: application/json" \
  --request POST \
  --data '{"query":"query { medication ( where:{ _and: [ { diagnosis_code: {_in: [\"S00-T88\",\"T20-R73\"]}}, { price: {_lt: 150}}, { inventory: {_gt: 10}} ] } ) { id name diagnosis_code price inventory } }","variables":null}' \
  https://hasura-graphql-test.herokuapp.com/v1alpha1/graphql

Try this out yourself

1. Get a Postgres instance and the Hasura GraphQL engine running on Heroku's free tier in less than a minute: https://docs.hasura.io/0.15/graphql/manual/getting-started/heroku-simple.html

2. Create table and add test data

   • Create a table named medication with the following schema:

   

   • Add some test data:

     name	diagnosis_code	price	inventory
     Ibuprofen	T39.311A	2.00	12
     Lyrica oral	S00-T88	148.00	15
     Butrans transdermal	S00-T88	10.00	121
     Ketorolac TROMETHAMINE	T21.431C	211.50	1
     diclofenac potassium oral	T20-R73	12.50	9
     Advil PM oral	T20-R73	160.00	123

3. Use the GraphiQL window (click on GRAPHIQL link) to run the the following GraphQL query:

   query {
     medication (
       where:{
         _and: [
               { diagnosis_code: {_in: ["S00-T88","T20-R73"]}},
               { price: {_lt: 150}},
               { inventory: {_gt: 10}}
           ]
       }
     ) {
       id
       name
       diagnosis_code
       price
       inventory
     }
   }

4. Run the following query (or just change the query keyword to subscription in the above query and run it again) and modify the data in the medication table in another tab for real-time updates in your response:

   subscription {
     medication (
       where:{
         _and: [
               { diagnosis_code: {_in: ["S00-T88","T20-R73"]}},
               { price: {_lt: 150}},
               { inventory: {_gt: 10}}
           ]
       }
     ) {
       id
       name
       diagnosis_code
       price
       inventory
     }
   }