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add resolver generator
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‎examples/api/starwars-api.graphql‎

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‎examples/config.yml‎

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validate:
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type_names: PascalCase
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field_names: camelCase
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enum_values: PascalCase
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transform:
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type_names: PascalCase
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field_names: camelCase
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enum_values: uppercase
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drop_comments: true
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generation:
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add_query_type: true
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add_mutation_type: true
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# add id field to all schema types
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field_for_id: true
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# add creation date and last update date field(s) to all schema types
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generate_datetime: true
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field_for_creation_date: true
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field_for_last_update_date: true
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# add reverse edges for traversal
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reverse_edges: true
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# add edge types
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edge_types: false
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fields_for_edge_types: false
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# add queries
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query_by_id: true
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query_type_filter: true
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query_list_of: true
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query_by_key: true
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# add input types
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input_to_create_objects: true
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input_to_update_objects: true
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# add edge input types (update not supported)
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input_to_create_edge_objects: true
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input_to_update_edge_objects: false
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# add mutations
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create_objects: true
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update_objects: true
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delete_objects: false
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# add edge mutations (update and delete not supported)
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create_edge_objects: true
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update_edge_objects: false
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delete_edge_objects: false

‎examples/generate.sh‎

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#!/usr/bin/env bash
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## generate API schema
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#cd graphql-api-generator
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#python3 generator.py \
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# --input ../examples/schema/starwars.graphql \
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# --output ../examples/api/starwars-api.graphql \
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# --config ../examples/config.yml
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#
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#cd ..
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#cd graphql-resolver-generator
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#python3 generator.py \
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# --input ../examples/api/starwars-api.graphql \
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# --output ../examples/resolvers/
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‎examples/resolvers/resolvers.js‎

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const tools = require('./arangodb-tools');
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module.exports = {
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get: function() {
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return resolvers;
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}
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};
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const resolvers = {
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Query: {
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droid: async (parent, args, context, info) =>
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await tools.get(args.id, info.returnType, info.schema),
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human: async (parent, args, context, info) =>
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await tools.get(args.id, info.returnType, info.schema),
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planet: async (parent, args, context, info) =>
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await tools.get(args.id, info.returnType, info.schema),
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species: async (parent, args, context, info) =>
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await tools.get(args.id, info.returnType, info.schema),
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starship: async (parent, args, context, info) =>
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await tools.get(args.id, info.returnType, info.schema),
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listOfDroids: async (parent, args, context, info) =>
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await tools.getList(args, info),
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listOfHumans: async (parent, args, context, info) =>
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await tools.getList(args, info),
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listOfPlanets: async (parent, args, context, info) =>
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await tools.getList(args, info),
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listOfSpeciess: async (parent, args, context, info) =>
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await tools.getList(args, info),
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listOfStarships: async (parent, args, context, info) =>
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await tools.getList(args, info),
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listOfCharacters: async (parent, args, context, info) => await tools.getList(args, info),
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},
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Mutation: {
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createDroid: (parent, args, context, info) =>
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tools.create(true, context, args.data, info.schema.getType('Droid'), info),
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createHuman: (parent, args, context, info) =>
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tools.create(true, context, args.data, info.schema.getType('Human'), info),
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createPlanet: (parent, args, context, info) =>
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tools.create(true, context, args.data, info.schema.getType('Planet'), info),
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createSpecies: (parent, args, context, info) =>
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tools.create(true, context, args.data, info.schema.getType('Species'), info),
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createStarship: (parent, args, context, info) =>
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tools.create(true, context, args.data, info.schema.getType('Starship'), info),
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createFriendsEdgeFromDroid: async (parent, args, context, info) =>
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await tools.createEdge(
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true,
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context,
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args.data.sourceID,
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info.schema.getType('Droid'),
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'friends',
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args.data.targetID,
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info.schema.getType('Character'),
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args.data.annotations,
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info),
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createFriendsEdgeFromHuman: async (parent, args, context, info) =>
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await tools.createEdge(
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true,
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context,
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args.data.sourceID,
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info.schema.getType('Human'),
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'friends',
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args.data.targetID,
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info.schema.getType('Character'),
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args.data.annotations,
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info),
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createStarshipsEdgeFromHuman: async (parent, args, context, info) =>
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await tools.createEdge(
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true,
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context,
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args.data.sourceID,
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info.schema.getType('Human'),
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'starships',
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args.data.targetID,
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info.schema.getType('Starship'),
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args.data.annotations,
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info),
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createOriginEdgeFromSpecies: async (parent, args, context, info) =>
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await tools.createEdge(
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true,
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context,
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args.data.sourceID,
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info.schema.getType('Species'),
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'origin',
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args.data.targetID,
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info.schema.getType('Planet'),
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args.data.annotations,
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info),
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updateDroid: async (parent, args, context, info) =>
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tools.update(
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true,
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context,
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args.id,
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args.data,
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info.schema.getType('Droid'),
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info),
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updateHuman: async (parent, args, context, info) =>
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tools.update(
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true,
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context,
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args.id,
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args.data,
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info.schema.getType('Human'),
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info),
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updatePlanet: async (parent, args, context, info) =>
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tools.update(
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true,
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context,
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args.id,
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args.data,
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info.schema.getType('Planet'),
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info),
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updateSpecies: async (parent, args, context, info) =>
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tools.update(
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true,
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context,
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args.id,
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args.data,
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info.schema.getType('Species'),
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info),
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updateStarship: async (parent, args, context, info) =>
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tools.update(
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true,
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context,
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args.id,
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args.data,
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info.schema.getType('Starship'),
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info),
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},
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Droid: {
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id: (parent, args, context, info) => parent._id,
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friends: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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_friendsFromDroid: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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_friendsFromCharacter: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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_friendsFromHuman: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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},
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Human: {
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id: (parent, args, context, info) => parent._id,
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friends: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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starships: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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_friendsFromDroid: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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_friendsFromCharacter: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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_friendsFromHuman: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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},
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Planet: {
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id: (parent, args, context, info) => parent._id,
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_homeWorldFromCharacter: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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_originFromSpecies: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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},
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Species: {
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id: (parent, args, context, info) => parent._id,
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origin: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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_speciesFromCharacter: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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},
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Starship: {
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id: (parent, args, context, info) => parent._id,
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_starshipsFromHuman: async (parent, args, context, info) =>
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await tools.getEdge(parent, args, info),
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},
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_ListOfDroids: {
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totalCount: async (parent, args, context, info) =>
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await tools.getTotalCount(parent, args, info),
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isEndOfWholeList: async (parent, args, context, info) =>
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await tools.isEndOfList(parent, args, info),
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},
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_ListOfHumans: {
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totalCount: async (parent, args, context, info) =>
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await tools.getTotalCount(parent, args, info),
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isEndOfWholeList: async (parent, args, context, info) =>
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await tools.isEndOfList(parent, args, info),
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},
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_ListOfPlanets: {
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totalCount: async (parent, args, context, info) =>
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await tools.getTotalCount(parent, args, info),
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isEndOfWholeList: async (parent, args, context, info) =>
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await tools.isEndOfList(parent, args, info),
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},
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_ListOfSpeciess: {
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totalCount: async (parent, args, context, info) =>
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await tools.getTotalCount(parent, args, info),
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isEndOfWholeList: async (parent, args, context, info) =>
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await tools.isEndOfList(parent, args, info),
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},
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_ListOfStarships: {
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totalCount: async (parent, args, context, info) =>
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await tools.getTotalCount(parent, args, info),
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isEndOfWholeList: async (parent, args, context, info) =>
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await tools.isEndOfList(parent, args, info),
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},
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_FriendsEdgeFromDroid: {
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id: (parent, args, context, info) => parent._id,
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source: async (parent, args, context, info) =>
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await tools.get(parent._from, info.schema.getType('Droid'), info.schema),
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target: async (parent, args, context, info) =>
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await tools.get(parent._to, info.schema.getType('Character'), info.schema),
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},
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_FriendsEdgeFromHuman: {
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id: (parent, args, context, info) => parent._id,
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source: async (parent, args, context, info) =>
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await tools.get(parent._from, info.schema.getType('Human'), info.schema),
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target: async (parent, args, context, info) =>
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await tools.get(parent._to, info.schema.getType('Character'), info.schema),
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},
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_StarshipsEdgeFromHuman: {
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id: (parent, args, context, info) => parent._id,
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source: async (parent, args, context, info) =>
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await tools.get(parent._from, info.schema.getType('Human'), info.schema),
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target: async (parent, args, context, info) =>
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await tools.get(parent._to, info.schema.getType('Starship'), info.schema),
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},
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_OriginEdgeFromSpecies: {
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id: (parent, args, context, info) => parent._id,
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source: async (parent, args, context, info) =>
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await tools.get(parent._from, info.schema.getType('Species'), info.schema),
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target: async (parent, args, context, info) =>
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await tools.get(parent._to, info.schema.getType('Planet'), info.schema),
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},
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Character: {
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__resolveType: (parent, args, context, info) =>
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parent._id.split('/')[0]
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},
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}

‎examples/schema/starwars.graphql‎

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enum Episode {
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NEWHOPE
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EMPIRE
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JEDI
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}
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interface Character {
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name: String
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friends: [Character]
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homeWorld: Planet
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species: Species
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}
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type Human implements Character {
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name: String!
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friends: [Character]
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homeWorld: Planet
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species: Species
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appearsIn: [Episode]!
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starships: [Starship]
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totalCredits: Int
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}
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type Droid implements Character {
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name: String!
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friends: [Character]
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homeWorld: Planet
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species: Species
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appearsIn: [Episode]!
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primaryFunction: String
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}
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type Planet {
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name: String
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climate: String
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}
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type Species {
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name: String
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lifespan: Int
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origin: Planet
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}
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type Starship {
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name: String!
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length: Float
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}

‎graphql-resolver-generator/README.md‎

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# graphql-resolver-generator
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This tool generates a file containing resolver functions based on a GraphQL API
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schema. The generated file, along with the GraphQL API schema, is intended as the
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basis for setting up an [Apollo GraphQL](https://www.apollographql.com/) based server.
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## Prerequisites
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```bash
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$ pip3 install graphql-core-next
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$ pip3 install mako
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```
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## Example
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```bash
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$ python3 generator.py \
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--input api-schema.graphql \
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--output ./resources/
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```
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## Usage
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```bash
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$ python3 generator.py --help
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usage: generator.py [-h] --input INPUT [--output OUTPUT] [--config CONFIG]
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optional arguments:
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-h, --help show this help message and exit
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--input INPUT GraphQL API schema file
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--output OUTPUT Output directory for resolver.js file
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```

‎graphql-resolver-generator/__init__.py‎

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