func (api *MigrationAPI) Start() error {
runAll := delay.Func("*MigrationService.RunAll", func(ctx context.Context) error {
return api.MigrationService.RunAll(AsSuperuser(ctx))
})
api.Mutations = map[string]*graphql.Field{
"migrate": relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "Migrate",
InputFields: graphql.InputObjectConfigFieldMap{},
OutputFields: graphql.Fields{},
MutateAndGetPayload: func(inputMap map[string]interface{}, info graphql.ResolveInfo, ctx context.Context) (map[string]interface{}, error) {
u, err := api.UserService.FromContext(ctx)
if err != nil {
return nil, err
}
if !u.IsAdmin {
return nil, errors.New("user must be an admin")
}
err = runAll.Call(ctx)
if err != nil {
return nil, err
}
return map[string]interface{}{}, nil
},
}),
}
return nil
}
"time"
)
func testAsyncDataMutation(resultChan *chan int) {
// simulate async data mutation
time.Sleep(time.Second * 1)
*resultChan <- int(1)
}
var simpleMutationTest = relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "SimpleMutation",
InputFields: graphql.InputObjectConfigFieldMap{},
OutputFields: graphql.FieldConfigMap{
"result": &graphql.FieldConfig{
Type: graphql.Int,
},
},
MutateAndGetPayload: func(inputMap map[string]interface{}, info graphql.ResolveInfo) map[string]interface{} {
return map[string]interface{}{
"result": 1,
}
},
})
// async mutation
var simplePromiseMutationTest = relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "SimplePromiseMutation",
InputFields: graphql.InputObjectConfigFieldMap{},
OutputFields: graphql.FieldConfigMap{
"result": &graphql.FieldConfig{
Type: graphql.Int,
},
"golang.org/x/net/context"
)
func testAsyncDataMutation(resultChan *chan int) {
// simulate async data mutation
time.Sleep(time.Second * 1)
*resultChan <- int(1)
}
var simpleMutationTest = relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "SimpleMutation",
InputFields: graphql.InputObjectConfigFieldMap{},
OutputFields: graphql.Fields{
"result": &graphql.Field{
Type: graphql.Int,
},
},
MutateAndGetPayload: func(inputMap map[string]interface{}, info graphql.ResolveInfo, ctx context.Context) (map[string]interface{}, error) {
return map[string]interface{}{
"result": 1,
}, nil
},
})
var NotFoundError = errors.New("not found")
var simpleMutationErrorTest = relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "SimpleMutation",
InputFields: graphql.InputObjectConfigFieldMap{},
OutputFields: graphql.Fields{
"result": &graphql.Field{
Type: graphql.Int,
func (api *TaskAPI) Start() error {
api.Type = graphql.NewObject(graphql.ObjectConfig{
Name: "Task",
Description: "Task represents a particular action or piece of work to be completed.",
Fields: graphql.Fields{
"id": relay.GlobalIDField("Task", nil),
"createdAt": &graphql.Field{
Description: "When the task was first added",
Type: graphql.String,
},
"title": &graphql.Field{
Description: "A short summary of the task",
Type: graphql.String,
},
"description": &graphql.Field{
Description: "A more detailed explanation of the task",
Type: graphql.String,
},
"isArchived": &graphql.Field{
Description: "Whether this task requires attention",
Type: graphql.Boolean,
},
},
Interfaces: []*graphql.Interface{
api.NodeInterface,
},
})
api.ConnectionType = relay.ConnectionDefinitions(relay.ConnectionConfig{
Name: api.Type.Name(),
NodeType: api.Type,
}).ConnectionType
api.Mutations = map[string]*graphql.Field{
"addTask": relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "AddTask",
InputFields: graphql.InputObjectConfigFieldMap{
"title": &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.String),
},
"description": &graphql.InputObjectFieldConfig{
Type: graphql.String,
},
"spaceId": &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.String),
},
},
OutputFields: graphql.Fields{
"task": &graphql.Field{
Type: api.Type,
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
payload, ok := p.Source.(map[string]interface{})
if !ok {
return nil, errors.New("could not cast payload to map")
}
id, ok := payload["taskId"].(string)
if !ok {
return nil, errors.New("could not cast taskId to string")
}
t, err := api.TaskService.ByID(p.Context, id)
if err != nil {
return nil, err
}
return t, nil
},
},
},
MutateAndGetPayload: func(inputMap map[string]interface{}, info graphql.ResolveInfo, ctx context.Context) (map[string]interface{}, error) {
title, ok := inputMap["title"].(string)
if !ok {
return nil, errors.New("could not cast title to string")
}
var desc string
descOrNil := inputMap["description"]
if descOrNil != nil {
desc, ok = descOrNil.(string)
if !ok {
return nil, errors.New("could not cast description to string")
}
}
spaceID, ok := inputMap["spaceId"].(string)
if !ok {
return nil, errors.New("could not cast spaceId to string")
}
resolvedSpaceID := relay.FromGlobalID(spaceID)
if resolvedSpaceID == nil {
return nil, fmt.Errorf("invalid id %q", spaceID)
}
t := &Task{
Title: title,
Description: desc,
SpaceID: resolvedSpaceID.ID,
}
err := api.TaskService.Create(ctx, t)
if err != nil {
return nil, err
}
return map[string]interface{}{
"taskId": t.ID,
}, nil
},
}),
"editTask": relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "EditTask",
InputFields: graphql.InputObjectConfigFieldMap{
"id": &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.ID),
},
"title": &graphql.InputObjectFieldConfig{
Type: graphql.String,
},
"description": &graphql.InputObjectFieldConfig{
Type: graphql.String,
},
"isArchived": &graphql.InputObjectFieldConfig{
Type: graphql.Boolean,
},
},
OutputFields: graphql.Fields{
"task": &graphql.Field{
Type: api.Type,
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
payload, ok := p.Source.(map[string]interface{})
if !ok {
return nil, errors.New("could not cast payload to map")
}
id, ok := payload["id"].(string)
if !ok {
return nil, errors.New("could not cast id to string")
}
t, err := api.TaskService.ByID(p.Context, id)
if err != nil {
return nil, err
}
return t, nil
},
},
},
MutateAndGetPayload: func(inputMap map[string]interface{}, info graphql.ResolveInfo, ctx context.Context) (map[string]interface{}, error) {
id, ok := inputMap["id"].(string)
if !ok {
return nil, errors.New("could not cast id to string")
}
resolvedID := relay.FromGlobalID(id)
if resolvedID == nil {
return nil, fmt.Errorf("invalid id %q", id)
}
t, err := api.TaskService.ByID(ctx, resolvedID.ID)
if err != nil {
return nil, err
}
title, ok := inputMap["title"].(string)
if ok {
t.Title = title
}
description, ok := inputMap["description"].(string)
if ok {
t.Description = description
}
isArchived, ok := inputMap["isArchived"].(bool)
if ok {
t.IsArchived = isArchived
}
err = api.TaskService.Update(ctx, t)
if err != nil {
return nil, err
}
return map[string]interface{}{
"id": t.ID,
}, nil
},
}),
}
return nil
}
func init() {
/**
* We get the node interface and field from the relay library.
*
* The first method is the way we resolve an ID to its object. The second is the
* way we resolve an object that implements node to its type.
*/
nodeDefinitions = relay.NewNodeDefinitions(relay.NodeDefinitionsConfig{
IDFetcher: func(id string, info graphql.ResolveInfo) interface{} {
// resolve id from global id
resolvedID := relay.FromGlobalID(id)
// based on id and its type, return the object
if resolvedID.Type == "Faction" {
return GetFaction(resolvedID.ID)
} else {
return GetShip(resolvedID.ID)
}
},
TypeResolve: func(value interface{}, info graphql.ResolveInfo) *graphql.Object {
// based on the type of the value, return GraphQLObjectType
switch value.(type) {
case *Faction:
return factionType
default:
return shipType
}
},
})
/**
* We define our basic ship type.
*
* This implements the following type system shorthand:
* type Ship : Node {
* id: String!
* name: String
* }
*/
shipType = graphql.NewObject(graphql.ObjectConfig{
Name: "Ship",
Description: "A ship in the Star Wars saga",
Fields: graphql.Fields{
"id": relay.GlobalIDField("Ship", nil),
"name": &graphql.Field{
Type: graphql.String,
Description: "The name of the ship.",
},
},
Interfaces: []*graphql.Interface{
nodeDefinitions.NodeInterface,
},
})
/**
* We define a connection between a faction and its ships.
*
* connectionType implements the following type system shorthand:
* type ShipConnection {
* edges: [ShipEdge]
* pageInfo: PageInfo!
* }
*
* connectionType has an edges field - a list of edgeTypes that implement the
* following type system shorthand:
* type ShipEdge {
* cursor: String!
* node: Ship
* }
*/
shipConnectionDefinition := relay.ConnectionDefinitions(relay.ConnectionConfig{
Name: "Ship",
NodeType: shipType,
})
/**
* We define our faction type, which implements the node interface.
*
* This implements the following type system shorthand:
* type Faction : Node {
* id: String!
* name: String
* ships: ShipConnection
* }
*/
factionType = graphql.NewObject(graphql.ObjectConfig{
Name: "Faction",
Description: "A faction in the Star Wars saga",
Fields: graphql.Fields{
"id": relay.GlobalIDField("Faction", nil),
"name": &graphql.Field{
Type: graphql.String,
Description: "The name of the faction.",
},
"ships": &graphql.Field{
Type: shipConnectionDefinition.ConnectionType,
Args: relay.ConnectionArgs,
Resolve: func(p graphql.ResolveParams) interface{} {
// convert args map[string]interface into ConnectionArguments
args := relay.NewConnectionArguments(p.Args)
// get ship objects from current faction
ships := []interface{}{}
if faction, ok := p.Source.(*Faction); ok {
for _, shipId := range faction.Ships {
ships = append(ships, GetShip(shipId))
}
}
// let relay library figure out the result, given
// - the list of ships for this faction
// - and the filter arguments (i.e. first, last, after, before)
return relay.ConnectionFromArray(ships, args)
},
},
},
Interfaces: []*graphql.Interface{
nodeDefinitions.NodeInterface,
},
})
/**
* This is the type that will be the root of our query, and the
* entry point into our schema.
*
* This implements the following type system shorthand:
* type Query {
* rebels: Faction
* empire: Faction
* node(id: String!): Node
* }
*/
queryType := graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.Fields{
"rebels": &graphql.Field{
Type: factionType,
Resolve: func(p graphql.ResolveParams) interface{} {
return GetRebels()
},
},
"empire": &graphql.Field{
Type: factionType,
Resolve: func(p graphql.ResolveParams) interface{} {
return GetEmpire()
},
},
"node": nodeDefinitions.NodeField,
},
})
/**
* This will return a GraphQLField for our ship
* mutation.
*
* It creates these two types implicitly:
* input IntroduceShipInput {
* clientMutationID: string!
* shipName: string!
* factionId: ID!
* }
*
* input IntroduceShipPayload {
* clientMutationID: string!
* ship: Ship
* faction: Faction
* }
*/
shipMutation := relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "IntroduceShip",
InputFields: graphql.InputObjectConfigFieldMap{
"shipName": &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.String),
},
"factionId": &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.ID),
},
},
OutputFields: graphql.Fields{
"ship": &graphql.Field{
Type: shipType,
Resolve: func(p graphql.ResolveParams) interface{} {
if payload, ok := p.Source.(map[string]interface{}); ok {
return GetShip(payload["shipId"].(string))
}
return nil
},
},
"faction": &graphql.Field{
Type: factionType,
Resolve: func(p graphql.ResolveParams) interface{} {
if payload, ok := p.Source.(map[string]interface{}); ok {
return GetFaction(payload["factionId"].(string))
}
return nil
},
},
},
MutateAndGetPayload: func(inputMap map[string]interface{}, info graphql.ResolveInfo) map[string]interface{} {
// `inputMap` is a map with keys/fields as specified in `InputFields`
// Note, that these fields were specified as non-nullables, so we can assume that it exists.
shipName := inputMap["shipName"].(string)
factionId := inputMap["factionId"].(string)
// This mutation involves us creating (introducing) a new ship
newShip := CreateShip(shipName, factionId)
// return payload
return map[string]interface{}{
"shipId": newShip.ID,
"factionId": factionId,
}
},
})
/**
* This is the type that will be the root of our mutations, and the
* entry point into performing writes in our schema.
*
* This implements the following type system shorthand:
* type Mutation {
* introduceShip(input IntroduceShipInput!): IntroduceShipPayload
* }
*/
mutationType := graphql.NewObject(graphql.ObjectConfig{
Name: "Mutation",
Fields: graphql.Fields{
"introduceShip": shipMutation,
},
})
/**
* Finally, we construct our schema (whose starting query type is the query
* type we defined above) and export it.
*/
var err error
Schema, err = graphql.NewSchema(graphql.SchemaConfig{
Query: queryType,
Mutation: mutationType,
})
if err != nil {
// panic if there is an error in schema
panic(err)
}
}
func init() {
nodeDefinitions = relay.NewNodeDefinitions(relay.NodeDefinitionsConfig{
IDFetcher: func(id string, info graphql.ResolveInfo) interface{} {
resolvedID := relay.FromGlobalID(id)
if resolvedID.Type == "Todo" {
return GetTodo(resolvedID.ID)
}
if resolvedID.Type == "User" {
return GetUser(resolvedID.ID)
}
return nil
},
TypeResolve: func(value interface{}, info graphql.ResolveInfo) *graphql.Object {
switch value.(type) {
case *Todo:
return todoType
case *User:
return userType
default:
return userType
}
},
})
todoType = graphql.NewObject(graphql.ObjectConfig{
Name: "Todo",
Fields: graphql.Fields{
"id": relay.GlobalIDField("Todo", nil),
"text": &graphql.Field{
Type: graphql.String,
},
"complete": &graphql.Field{
Type: graphql.Boolean,
},
},
Interfaces: []*graphql.Interface{nodeDefinitions.NodeInterface},
})
todosConnection = relay.ConnectionDefinitions(relay.ConnectionConfig{
Name: "Todo",
NodeType: todoType,
})
userType = graphql.NewObject(graphql.ObjectConfig{
Name: "User",
Fields: graphql.Fields{
"id": relay.GlobalIDField("User", nil),
"todos": &graphql.Field{
Type: todosConnection.ConnectionType,
Args: relay.NewConnectionArgs(graphql.FieldConfigArgument{
"status": &graphql.ArgumentConfig{
Type: graphql.String,
DefaultValue: "any",
},
}),
Resolve: func(p graphql.ResolveParams) interface{} {
status, _ := p.Args["status"].(string)
args := relay.NewConnectionArguments(p.Args)
todos := TodosToSliceInterface(GetTodos(status))
return relay.ConnectionFromArray(todos, args)
},
},
"totalCount": &graphql.Field{
Type: graphql.Int,
Resolve: func(p graphql.ResolveParams) interface{} {
return len(GetTodos("any"))
},
},
"completedCount": &graphql.Field{
Type: graphql.Int,
Resolve: func(p graphql.ResolveParams) interface{} {
return len(GetTodos("completed"))
},
},
},
Interfaces: []*graphql.Interface{nodeDefinitions.NodeInterface},
})
rootType := graphql.NewObject(graphql.ObjectConfig{
Name: "Root",
Fields: graphql.Fields{
"viewer": &graphql.Field{
Type: userType,
Resolve: func(p graphql.ResolveParams) interface{} {
return GetViewer()
},
},
"node": nodeDefinitions.NodeField,
},
})
addTodoMutation := relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "AddTodo",
InputFields: graphql.InputObjectConfigFieldMap{
"text": &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.String),
},
},
OutputFields: graphql.Fields{
"todoEdge": &graphql.Field{
Type: todosConnection.EdgeType,
Resolve: func(p graphql.ResolveParams) interface{} {
payload, _ := p.Source.(map[string]interface{})
todoId, _ := payload["todoId"].(string)
todo := GetTodo(todoId)
return relay.EdgeType{
Node: todo,
Cursor: relay.CursorForObjectInConnection(TodosToSliceInterface(GetTodos("any")), todo),
}
},
},
"viewer": &graphql.Field{
Type: userType,
Resolve: func(p graphql.ResolveParams) interface{} {
return GetViewer()
},
},
},
MutateAndGetPayload: func(inputMap map[string]interface{}, info graphql.ResolveInfo) map[string]interface{} {
text, _ := inputMap["text"].(string)
todoId := AddTodo(text, false)
return map[string]interface{}{
"todoId": todoId,
}
},
})
changeTodoStatusMutation := relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "ChangeTodoStatus",
InputFields: graphql.InputObjectConfigFieldMap{
"id": &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.ID),
},
"complete": &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.Boolean),
},
},
OutputFields: graphql.Fields{
"todo": &graphql.Field{
Type: todoType,
Resolve: func(p graphql.ResolveParams) interface{} {
payload, _ := p.Source.(map[string]interface{})
todoId, _ := payload["todoId"].(string)
todo := GetTodo(todoId)
return todo
},
},
"viewer": &graphql.Field{
Type: userType,
Resolve: func(p graphql.ResolveParams) interface{} {
return GetViewer()
},
},
},
MutateAndGetPayload: func(inputMap map[string]interface{}, info graphql.ResolveInfo) map[string]interface{} {
id, _ := inputMap["id"].(string)
complete, _ := inputMap["complete"].(bool)
resolvedId := relay.FromGlobalID(id)
ChangeTodoStatus(resolvedId.ID, complete)
return map[string]interface{}{
"todoId": resolvedId.ID,
}
},
})
markAllTodosMutation := relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "MarkAllTodos",
InputFields: graphql.InputObjectConfigFieldMap{
"complete": &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.Boolean),
},
},
OutputFields: graphql.Fields{
"changedTodos": &graphql.Field{
Type: graphql.NewList(todoType),
Resolve: func(p graphql.ResolveParams) interface{} {
payload, _ := p.Source.(map[string]interface{})
todoIds, _ := payload["todoIds"].([]string)
todos := []*Todo{}
for _, todoId := range todoIds {
todo := GetTodo(todoId)
if todo != nil {
todos = append(todos, todo)
}
}
return todos
},
},
"viewer": &graphql.Field{
Type: userType,
Resolve: func(p graphql.ResolveParams) interface{} {
return GetViewer()
},
},
},
MutateAndGetPayload: func(inputMap map[string]interface{}, info graphql.ResolveInfo) map[string]interface{} {
complete, _ := inputMap["complete"].(bool)
todoIds := MarkAllTodos(complete)
return map[string]interface{}{
"todoIds": todoIds,
}
},
})
removeCompletedTodosMutation := relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "RemoveCompletedTodos",
OutputFields: graphql.Fields{
"deletedTodoIds": &graphql.Field{
Type: graphql.NewList(graphql.String),
Resolve: func(p graphql.ResolveParams) interface{} {
payload, _ := p.Source.(map[string]interface{})
return payload["todoIds"]
},
},
"viewer": &graphql.Field{
Type: userType,
Resolve: func(p graphql.ResolveParams) interface{} {
return GetViewer()
},
},
},
MutateAndGetPayload: func(inputMap map[string]interface{}, info graphql.ResolveInfo) map[string]interface{} {
todoIds := RemoveCompletedTodos()
return map[string]interface{}{
"todoIds": todoIds,
}
},
})
removeTodoMutation := relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "RemoveTodo",
InputFields: graphql.InputObjectConfigFieldMap{
"id": &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.ID),
},
},
OutputFields: graphql.Fields{
"deletedTodoId": &graphql.Field{
Type: graphql.ID,
Resolve: func(p graphql.ResolveParams) interface{} {
payload, _ := p.Source.(map[string]interface{})
return payload["todoId"]
},
},
"viewer": &graphql.Field{
Type: userType,
Resolve: func(p graphql.ResolveParams) interface{} {
return GetViewer()
},
},
},
MutateAndGetPayload: func(inputMap map[string]interface{}, info graphql.ResolveInfo) map[string]interface{} {
id, _ := inputMap["id"].(string)
resolvedId := relay.FromGlobalID(id)
RemoveTodo(resolvedId.ID)
return map[string]interface{}{
"todoId": resolvedId.ID,
}
},
})
renameTodoMutation := relay.MutationWithClientMutationID(relay.MutationConfig{
Name: "RenameTodo",
InputFields: graphql.InputObjectConfigFieldMap{
"id": &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.ID),
},
"text": &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.String),
},
},
OutputFields: graphql.Fields{
"todo": &graphql.Field{
Type: todoType,
Resolve: func(p graphql.ResolveParams) interface{} {
payload, _ := p.Source.(map[string]interface{})
todoId, _ := payload["todoId"].(string)
return GetTodo(todoId)
},
},
"viewer": &graphql.Field{
Type: userType,
Resolve: func(p graphql.ResolveParams) interface{} {
return GetViewer()
},
},
},
MutateAndGetPayload: func(inputMap map[string]interface{}, info graphql.ResolveInfo) map[string]interface{} {
id, _ := inputMap["id"].(string)
resolvedId := relay.FromGlobalID(id)
text, _ := inputMap["text"].(string)
RenameTodo(resolvedId.ID, text)
return map[string]interface{}{
"todoId": resolvedId.ID,
}
},
})
mutationType := graphql.NewObject(graphql.ObjectConfig{
Name: "Mutation",
Fields: graphql.Fields{
"addTodo": addTodoMutation,
"changeTodoStatus": changeTodoStatusMutation,
"markAllTodos": markAllTodosMutation,
"removeCompletedTodos": removeCompletedTodosMutation,
"removeTodo": removeTodoMutation,
"renameTodo": renameTodoMutation,
},
})
var err error
Schema, err = graphql.NewSchema(graphql.SchemaConfig{
Query: rootType,
Mutation: mutationType,
})
if err != nil {
panic(err)
}
}