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Initial proposal: dynamic schema stitching at runtime. #20

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Initial proposal: dynamic schema stitching at runtime. #20

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56ffc26
added Config option for a Loader instance
mattblackdev May 3, 2018
93532a7
Initial proposition of replacing the the graphql server at runtime
mattblackdev May 3, 2018
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1 change: 1 addition & 0 deletions server/config.js
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ let Config = {
GRAPHQL_SCHEMA_DIRECTIVES: {},
EXPRESS_MIDDLEWARES: [],
MOCKING: null,
LOADER: null,
};

export default Config;
2 changes: 2 additions & 0 deletions server/core/main-server.js
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Expand Up @@ -125,6 +125,8 @@ export const createApolloServer = (customOptions = {}, customConfig = {}) => {
})
);
}
// this removes all handlers
WebApp.connectHandlers.stack = [];
// this binds the specified paths to the Express server running Apollo + GraphiQL
WebApp.connectHandlers.use(graphQLServer);

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6 changes: 5 additions & 1 deletion server/initialize.js
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Expand Up @@ -15,7 +15,11 @@ export default function initialize(config = {}) {

Object.freeze(Config);

const schema = getExecutableSchema();
const schema = getExecutableSchema(
Config.LOADER && Config.LOADER.getSchema
? Config.LOADER.getSchema.bind(Config.LOADER)
: undefined
);

if (Config.MOCKING) {
addMockFunctionsToSchema({
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4 changes: 2 additions & 2 deletions server/schema.js
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@@ -1,12 +1,12 @@
import { makeExecutableSchema } from 'graphql-tools';
import { load, getSchema } from 'graphql-load';
import { load, getSchema as defaultGetSchema } from 'graphql-load';
import Config from './config';
import directives from './directives';

const EMPTY_QUERY_ERROR =
'Error: Specified query type "Query" not found in document.';

export function getExecutableSchema() {
export function getExecutableSchema(getSchema = defaultGetSchema) {
try {
const { typeDefs, resolvers } = getSchema();
schema = makeExecutableSchema({
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