1package graphql
 2
 3import (
 4	"context"
 5
 6	"github.com/graphql-go/graphql/gqlerrors"
 7	"github.com/graphql-go/graphql/language/parser"
 8	"github.com/graphql-go/graphql/language/source"
 9)
10
11type Params struct {
12	// The GraphQL type system to use when validating and executing a query.
13	Schema Schema
14
15	// A GraphQL language formatted string representing the requested operation.
16	RequestString string
17
18	// The value provided as the first argument to resolver functions on the top
19	// level type (e.g. the query object type).
20	RootObject map[string]interface{}
21
22	// A mapping of variable name to runtime value to use for all variables
23	// defined in the requestString.
24	VariableValues map[string]interface{}
25
26	// The name of the operation to use if requestString contains multiple
27	// possible operations. Can be omitted if requestString contains only
28	// one operation.
29	OperationName string
30
31	// Context may be provided to pass application-specific per-request
32	// information to resolve functions.
33	Context context.Context
34}
35
36func Do(p Params) *Result {
37	source := source.NewSource(&source.Source{
38		Body: []byte(p.RequestString),
39		Name: "GraphQL request",
40	})
41	AST, err := parser.Parse(parser.ParseParams{Source: source})
42	if err != nil {
43		return &Result{
44			Errors: gqlerrors.FormatErrors(err),
45		}
46	}
47	validationResult := ValidateDocument(&p.Schema, AST, nil)
48
49	if !validationResult.IsValid {
50		return &Result{
51			Errors: validationResult.Errors,
52		}
53	}
54
55	return Execute(ExecuteParams{
56		Schema:        p.Schema,
57		Root:          p.RootObject,
58		AST:           AST,
59		OperationName: p.OperationName,
60		Args:          p.VariableValues,
61		Context:       p.Context,
62	})
63}