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graphql-example.go
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graphql-example.go
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package main
/*
go get -v github.com/graph-gophers/graphql-go
test:
curl -d '{"query": "query GetAllLinks { links(id: \"1000\") { id url } }" }' localhost:8000/query | jq
*/
import (
"log"
"net/http"
"github.com/graph-gophers/graphql-go"
"github.com/graph-gophers/graphql-go/relay"
)
var s = `
type Link {
id: ID!
url: String!
}
type Query {
links(id: ID!): [Link!]!
}
`
var links = []Link{
{"1000", "https://blog.bin3xish477.com"},
{"1001", "https://aws.amazon.com"},
{"1002", "https://cloudflare.com"},
{"1003", "https://protonmail.com"},
{"1004", "https://spacex.com"},
}
type query struct{}
func (_ *query) Links(args LinkArgs) []Link {
var lnks []Link
for _, lnk := range links {
if string(lnk.ID()) == args.Id {
lnks = append(lnks, lnk)
}
}
return lnks
}
type Link struct {
IdField string
UrlField string
}
type LinkArgs struct {
Id string
}
func (l Link) ID() graphql.ID {
return graphql.ID(l.IdField)
}
func (l Link) Url() string {
return l.UrlField
}
func main() {
schema := graphql.MustParseSchema(s, &query{})
http.Handle("/query", &relay.Handler{
Schema: schema,
})
log.Fatal(http.ListenAndServe(":8000", nil))
}