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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,320 @@ | ||
| import { | ||
| getItem, | ||
| getUser, | ||
| getTopStoryIds, | ||
| getNewStoryIds, | ||
| getAskStoryIds, | ||
| getShowStoryIds, | ||
| getJobStoryIds | ||
| } from './apis/hn'; | ||
|
|
||
| import { | ||
| graphql, | ||
| GraphQLSchema, | ||
| GraphQLObjectType, | ||
| GraphQLString, | ||
| GraphQLNonNull, | ||
| GraphQLInt, | ||
| GraphQLEnumType, | ||
| GraphQLBoolean, | ||
| GraphQLList, | ||
| GraphQLID | ||
| } from 'graphql'; | ||
|
|
||
| import { | ||
| nodeDefinitions, | ||
| fromGlobalId, | ||
| toGlobalId, | ||
| globalIdField, | ||
| connectionDefinitions, | ||
| connectionArgs, | ||
| connectionFromPromisedArray | ||
| } from 'graphql-relay'; | ||
|
|
||
| const itemTypeName = 'item'; | ||
|
|
||
| const ConnectionTypes = {}; | ||
| const getConnectionType = (nodeType) => { | ||
| if (!ConnectionTypes[nodeType]) { | ||
| ConnectionTypes[nodeType] = connectionDefinitions({ nodeType }).connectionType; | ||
| } | ||
| return ConnectionTypes[nodeType]; | ||
| } | ||
|
|
||
| const kidsField = () => { | ||
| return { | ||
| type : getConnectionType(CommentType), | ||
| description : 'The item\'s comments, in ranked display order.', | ||
| args : connectionArgs, | ||
| resolve : (item, args) => { | ||
| // todo - trim initial kids array so we don't over-fetch | ||
| let kidsPromise = Promise.all(item.kids.map(getItem)) | ||
| return connectionFromPromisedArray(kidsPromise, args) | ||
| } | ||
| }; | ||
| }; | ||
|
|
||
| const itemFields = () => { | ||
| return { | ||
| hnId : { | ||
| type : new GraphQLNonNull(GraphQLString), | ||
| description : 'The item\'s unique id.', | ||
| resolve : (item) => item.id.toString() | ||
| }, | ||
| id: globalIdField(itemTypeName), | ||
| deleted : { | ||
| type : GraphQLBoolean, | ||
| description : 'if the item is deleted' | ||
| }, | ||
| by : { | ||
| type : new GraphQLNonNull(UserType), | ||
| description : 'The item\'s author.', | ||
| resolve : (item) => { | ||
| return getUser(item.by); | ||
| } | ||
| }, | ||
| time : { | ||
| type : new GraphQLNonNull(GraphQLInt), | ||
| description : 'Creation date of the item, in Unix Time.' | ||
| }, | ||
| timeISO : { | ||
| type : new GraphQLNonNull(GraphQLString), | ||
| description : 'Creation date of the item, in ISO8601', | ||
| resolve : (item) => { | ||
| let date = new Date(item.time * 1000); | ||
| return date.toISOString(); | ||
| } | ||
| }, | ||
| text : { | ||
| type : GraphQLString, | ||
| description : 'The comment, story or poll text. HTML.' | ||
| }, | ||
| dead : { | ||
| type : GraphQLBoolean, | ||
| description : 'if the item is dead' | ||
| }, | ||
| url : { | ||
| type : GraphQLString, | ||
| description : 'The URL of the story.' | ||
| }, | ||
| score : { | ||
| type : GraphQLInt, | ||
| description : 'The story\'s score, or the votes for a pollopt.' | ||
| }, | ||
| title : { | ||
| type : GraphQLString, | ||
| description : 'The title of the story, poll or job.' | ||
| }, | ||
| parent : { | ||
| type : nodeInterface, | ||
| description : 'The item\'s parent. For comments, either another comment or the relevant story. For pollopts, the relevant poll.', | ||
| resolve : (item) => { | ||
| if (!item.parent) { | ||
| return null; | ||
| } | ||
| return getItem(item.parent); | ||
| } | ||
| }, | ||
|
|
||
| descendants : { | ||
| type : GraphQLInt, | ||
| description : 'In the case of stories or polls, the total comment count.' | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| const { nodeInterface, nodeField } = nodeDefinitions( | ||
| (globalId) => { | ||
| const { type, id } = fromGlobalId(globalId); | ||
| if (type === 'HackerNewsV2User') { | ||
| return getUser(id); | ||
| } | ||
| return getItem(id); | ||
| }, | ||
| (obj) => { | ||
| if (typeof obj.karma !== 'undefined') { | ||
| return UserType; | ||
| } | ||
| return { | ||
| job: JobType, | ||
| story: StoryType, | ||
| comment: CommentType, | ||
| poll: PollType, | ||
| pollopt: PollPartType, | ||
| }[obj.type] || StoryType; | ||
| } | ||
| ); | ||
|
|
||
| const StoryType = new GraphQLObjectType({ | ||
| name: 'HackerNewsV2Story', | ||
| fields: () => ({ | ||
| id: itemFields().id, | ||
| hnId: itemFields().hnId, | ||
| by: itemFields().by, | ||
| descendants: itemFields().descendants, | ||
| score: itemFields().score, | ||
| time: itemFields().time, | ||
| timeISO: itemFields().timeISO, | ||
| title: itemFields().title, | ||
| url: itemFields().url, | ||
| text: itemFields().text, | ||
| kids: kidsField(CommentType), | ||
| deleted: itemFields().deleted, | ||
| dead: itemFields().dead, | ||
| }), | ||
| interfaces: [nodeInterface] | ||
| }); | ||
|
|
||
| const JobType = new GraphQLObjectType({ | ||
| name: 'HackerNewsV2Job', | ||
| fields: () => ({ | ||
| id: itemFields().id, | ||
| hnId: itemFields().hnId, | ||
| by: itemFields().by, | ||
| score: itemFields().score, | ||
| text: itemFields().text, | ||
| time: itemFields().time, | ||
| timeISO: itemFields().timeISO, | ||
| title: itemFields().title, | ||
| url: itemFields().url, | ||
| deleted: itemFields().deleted, | ||
| dead: itemFields().dead, | ||
| }), | ||
| interfaces: [nodeInterface] | ||
| }); | ||
|
|
||
| const PollType = new GraphQLObjectType({ | ||
| name: 'HackerNewsV2Poll', | ||
| fields: () => ({ | ||
| id: itemFields().id, | ||
| hnId: itemFields().hnId, | ||
| by: itemFields().by, | ||
| descendants: itemFields().descendants, | ||
| score: itemFields().score, | ||
| time: itemFields().time, | ||
| timeISO: itemFields().timeISO, | ||
| title: itemFields().title, | ||
| text: itemFields().text, | ||
| kids: kidsField(CommentType), | ||
| deleted: itemFields().deleted, | ||
| dead: itemFields().dead, | ||
| parts : { | ||
| type : new GraphQLList(PollPartType), | ||
| description : 'A list of related pollopts, in display order.', | ||
| resolve : (item) => { | ||
| if (!item.parts) { | ||
| return null; | ||
| } | ||
| let promises = item.parts.map((partId) => { | ||
| return getItem(partId) | ||
| }); | ||
| return Promise.all(promises); | ||
| } | ||
| }, | ||
| }), | ||
| interfaces: [nodeInterface] | ||
| }); | ||
|
|
||
| const CommentType = new GraphQLObjectType({ | ||
| name: 'HackerNewsV2Comment', | ||
| fields: () => ({ | ||
| id: itemFields().id, | ||
| hnId: itemFields().hnId, | ||
| by: itemFields().by, | ||
| parent: itemFields().parent, | ||
| text: itemFields().text, | ||
| time: itemFields().time, | ||
| timeISO: itemFields().timeISO, | ||
| kids: kidsField(CommentType), | ||
| deleted: itemFields().deleted, | ||
| dead: itemFields().dead, | ||
| }), | ||
| interfaces: [nodeInterface] | ||
| }); | ||
|
|
||
| const PollPartType = new GraphQLObjectType({ | ||
| name: 'HackerNewsV2PollPart', | ||
| fields: () => ({ | ||
| id: itemFields().id, | ||
| hnId: itemFields().hnId, | ||
| by: itemFields().by, | ||
| score: itemFields().score, | ||
| time: itemFields().time, | ||
| timeISO: itemFields().timeISO, | ||
| text: itemFields().text, | ||
| parent: itemFields().parent, | ||
| deleted: itemFields().deleted, | ||
| }), | ||
| interfaces: [nodeInterface] | ||
| }); | ||
|
|
||
| const UserType = new GraphQLObjectType({ | ||
| name: 'HackerNewsV2User', | ||
| fields: () => ({ | ||
| id: globalIdField(), | ||
| hnId: itemFields().hnId, | ||
| delay : { | ||
| type : GraphQLInt, | ||
| description : 'Delay in minutes between a comment\'s creation and its visibility to other users.' | ||
| }, | ||
| created : { | ||
| type : GraphQLInt, | ||
| description : 'Creation date of the user, in Unix Time.' | ||
| }, | ||
| createdISO : { | ||
| type : GraphQLString, | ||
| description : 'Creation date of the user, in ISO8601', | ||
| resolve : (user) => { | ||
| let date = new Date(user.created * 1000); | ||
| return date.toISOString(); | ||
| } | ||
| }, | ||
| about : { | ||
| type : GraphQLString, | ||
| description : 'The user\'s optional self-description. HTML.' | ||
| }, | ||
| submitted : { | ||
| type : getConnectionType(nodeInterface), | ||
| description: 'List of the user\'s stories, polls and comments.', | ||
| args : connectionArgs, | ||
| resolve : (user, args) => { | ||
| // todo - trim initial kids array so we don't over-fetch | ||
| let promise = Promise.all(user.submitted.map(getItem)) | ||
| return connectionFromPromisedArray(promise, args) | ||
| } | ||
| } | ||
| }), | ||
| interfaces: [nodeInterface] | ||
| }); | ||
|
|
||
|
|
||
| let hnType = new GraphQLObjectType({ | ||
| name : 'HackerNewsAPIV2', | ||
| description : 'The Hacker News V2 API; this is Relay-compatible (uses Nodes and Connections)', | ||
| fields : { | ||
| node: nodeField, | ||
|
|
||
| nodeFromHnId: { | ||
| type: new GraphQLNonNull(nodeInterface), | ||
| description: 'To ensure Node IDs are globally unique, GraphQLHub coerces ' + | ||
| 'IDs returned by the HN API. Use this field to get nodes via normal HN IDs', | ||
| args: { | ||
| id: { | ||
| type: new GraphQLNonNull(GraphQLString) | ||
| }, | ||
| isUserId: { | ||
| type: new GraphQLNonNull(GraphQLBoolean) | ||
| } | ||
| }, | ||
| resolve(source, args, context, info) { | ||
| const typeName = args.isUserId ? UserType.name : itemTypeName; | ||
| const id = toGlobalId(typeName, args.id); | ||
| return nodeField.resolve(source, { id }, context, info); | ||
| } | ||
| } | ||
| } | ||
| }); | ||
|
|
||
| console.log(UserType); | ||
|
|
||
| export const QueryObjectType = hnType; |
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