forked from graph-gophers/graphql-go
-
Notifications
You must be signed in to change notification settings - Fork 1
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Salman Ahmad
committed
Apr 3, 2018
1 parent
7c3c153
commit bded7d4
Showing
4 changed files
with
251 additions
and
1 deletion.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,9 @@ | ||
### Social App | ||
|
||
A simple example of how to use struct fields as resolvers instead of methods. | ||
|
||
To run this server | ||
|
||
`go ./example/field-resolvers/server/server.go` | ||
|
||
and go to localhost:9011 to interact |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,66 @@ | ||
package main | ||
|
||
import ( | ||
"log" | ||
"net/http" | ||
|
||
"github.com/graph-gophers/graphql-go" | ||
"github.com/graph-gophers/graphql-go/config" | ||
"github.com/graph-gophers/graphql-go/example/social" | ||
"github.com/graph-gophers/graphql-go/relay" | ||
) | ||
|
||
var schema *graphql.Schema | ||
|
||
func init() { | ||
schema = graphql.MustParseSchema(social.Schema, &social.Resolver{}, &config.Config{UseResolverMethods: false}) | ||
} | ||
|
||
func main() { | ||
http.Handle("/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
w.Write(page) | ||
})) | ||
|
||
http.Handle("/query", &relay.Handler{Schema: schema}) | ||
|
||
log.Fatal(http.ListenAndServe(":9011", nil)) | ||
} | ||
|
||
var page = []byte(` | ||
<!DOCTYPE html> | ||
<html> | ||
<head> | ||
<link href="https://cdnjs.cloudflare.com/ajax/libs/graphiql/0.11.11/graphiql.min.css" rel="stylesheet" /> | ||
<script src="https://cdnjs.cloudflare.com/ajax/libs/es6-promise/4.1.1/es6-promise.auto.min.js"></script> | ||
<script src="https://cdnjs.cloudflare.com/ajax/libs/fetch/2.0.3/fetch.min.js"></script> | ||
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.2.0/umd/react.production.min.js"></script> | ||
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.2.0/umd/react-dom.production.min.js"></script> | ||
<script src="https://cdnjs.cloudflare.com/ajax/libs/graphiql/0.11.11/graphiql.min.js"></script> | ||
</head> | ||
<body style="width: 100%; height: 100%; margin: 0; overflow: hidden;"> | ||
<div id="graphiql" style="height: 100vh;">Loading...</div> | ||
<script> | ||
function graphQLFetcher(graphQLParams) { | ||
return fetch("/query", { | ||
method: "post", | ||
body: JSON.stringify(graphQLParams), | ||
credentials: "include", | ||
}).then(function (response) { | ||
return response.text(); | ||
}).then(function (responseBody) { | ||
try { | ||
return JSON.parse(responseBody); | ||
} catch (error) { | ||
return responseBody; | ||
} | ||
}); | ||
} | ||
ReactDOM.render( | ||
React.createElement(GraphiQL, {fetcher: graphQLFetcher}), | ||
document.getElementById("graphiql") | ||
); | ||
</script> | ||
</body> | ||
</html> | ||
`) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,170 @@ | ||
package social | ||
|
||
import ( | ||
"context" | ||
"errors" | ||
"fmt" | ||
) | ||
|
||
const Schema = ` | ||
schema { | ||
query: Query | ||
} | ||
type Query { | ||
admin(id: ID!, role: Role = ADMIN): Admin! | ||
user(id: ID!): User! | ||
} | ||
interface Admin { | ||
id: ID! | ||
name: String! | ||
role: Role! | ||
} | ||
type User implements Admin { | ||
id: ID! | ||
name: String! | ||
email: String! | ||
role: Role! | ||
phone: String! | ||
address: [String!] | ||
friends(page: Pagination): [User] | ||
} | ||
input Pagination { | ||
first: Int | ||
last: Int | ||
} | ||
enum Role { | ||
ADMIN | ||
USER | ||
} | ||
` | ||
|
||
type page struct { | ||
First *int | ||
Last *int | ||
} | ||
|
||
type admin interface { | ||
IdResolver() string | ||
NameResolver() string | ||
RoleResolver() string | ||
} | ||
|
||
type user struct { | ||
Id string | ||
Name string | ||
Role string | ||
Email string | ||
Phone string | ||
Address *[]string | ||
Friends *[]*user | ||
} | ||
|
||
func (u user) IdResolver() string { | ||
return u.Id | ||
} | ||
|
||
func (u user) NameResolver() string { | ||
return u.Name | ||
} | ||
|
||
func (u user) RoleResolver() string { | ||
return u.Role | ||
} | ||
|
||
func (u user) FriendsResolver(args struct{ Page *page }) (*[]*user, error) { | ||
|
||
from := 0 | ||
numFriends := len(*u.Friends) | ||
to := numFriends | ||
|
||
if args.Page != nil { | ||
if args.Page.First != nil { | ||
from = *args.Page.First | ||
} | ||
if args.Page.Last != nil { | ||
to = *args.Page.Last | ||
if to > numFriends { | ||
to = numFriends | ||
} | ||
} | ||
} | ||
|
||
friends := (*u.Friends)[from:to] | ||
|
||
return &friends, nil | ||
} | ||
|
||
var users = []*user{ | ||
{ | ||
Id: "0x01", | ||
Name: "Albus Dumbledore", | ||
Role: "ADMIN", | ||
Email: "[email protected]", | ||
Phone: "000-000-0000", | ||
Address: &[]string{"Office @ Hogwarts", "where Horcruxes are"}, | ||
}, | ||
{ | ||
Id: "0x02", | ||
Name: "Harry Potter", | ||
Role: "USER", | ||
Email: "[email protected]", | ||
Phone: "000-000-0001", | ||
Address: &[]string{"123 dorm room @ Hogwarts", "456 random place"}, | ||
}, | ||
{ | ||
Id: "0x03", | ||
Name: "Hermione Granger", | ||
Role: "USER", | ||
Email: "[email protected]", | ||
Phone: "000-000-0011", | ||
Address: &[]string{"233 dorm room @ Hogwarts", "786 @ random place"}, | ||
}, | ||
{ | ||
Id: "0x04", | ||
Name: "Ronald Weasley", | ||
Role: "USER", | ||
Email: "[email protected]", | ||
Phone: "000-000-0111", | ||
Address: &[]string{"411 dorm room @ Hogwarts", "981 @ random place"}, | ||
}, | ||
} | ||
|
||
var usersMap = make(map[string]*user) | ||
|
||
func init() { | ||
users[0].Friends = &[]*user{users[1]} | ||
users[1].Friends = &[]*user{users[0], users[2], users[3]} | ||
users[2].Friends = &[]*user{users[1], users[3]} | ||
users[3].Friends = &[]*user{users[1], users[2]} | ||
for _, usr := range users { | ||
usersMap[usr.Id] = usr | ||
} | ||
} | ||
|
||
type Resolver struct{} | ||
|
||
func (r *Resolver) Admin(ctx context.Context, args struct { | ||
Id string | ||
Role string | ||
}) (admin, error) { | ||
if usr, ok := usersMap[args.Id]; ok { | ||
if usr.Role == args.Role { | ||
return *usr, nil | ||
} | ||
} | ||
err := fmt.Sprintf("user with id=%s and role=%s does not exist", args.Id, args.Role) | ||
return user{}, errors.New(err) | ||
} | ||
|
||
func (r *Resolver) User(ctx context.Context, args struct{ Id string }) (user, error) { | ||
if usr, ok := usersMap[args.Id]; ok { | ||
return *usr, nil | ||
} | ||
err := fmt.Sprintf("user with id=%s does not exist", args.Id) | ||
return user{}, errors.New(err) | ||
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters