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Add Apollo Server example
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‎README.md

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$ yarn add salesforce-graphql jsforce
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```
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### Example
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## Examples
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#### `app.ts`
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Refer to the `examples` folder for examples:
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```ts
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import * as jsforce from 'jsforce';
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import * as path from 'path';
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import * as fs from 'fs';
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> https://github.com/jpmonette/salesforce-graphql/tree/master/examples/apollo.
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import { GraphQLServer } from 'graphql-yoga';
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import { Binding } from 'salesforce-graphql';
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const schemaFile = path.join(__dirname, 'schema.graphql');
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const typeDefs = fs.readFileSync(schemaFile, 'utf8');
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const { USERNAME, PASSWORD } = process.env;
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const resolvers = {
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Query: {
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Accounts: (parent, args, context, info) =>
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context.db.query({}, info).then(res => res.records),
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Account: (parent, args, context, info) =>
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context.db.query({}, info).then(res => res.records[0]),
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Contacts: (parent, args, context, info) =>
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context.db.query({}, info).then(res => res.records),
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Contact: (parentobj, args, context, info) =>
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context.db.query({}, info).then(res => res.records[0]),
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},
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Account: {
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Contacts: (parent, args, context, info) =>
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context.db.query({ AccountId: parent.Id }, info).then(res => res.records),
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},
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Contact: {
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Account: (parent, args, context, info) =>
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context.db.query({ Id: parent.AccountId }, info).then(res => res.records[0]),
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},
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};
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const conn = new jsforce.Connection({});
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function init() {
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const db = new Binding({ conn });
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const server = new GraphQLServer({
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typeDefs,
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resolvers,
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context: req => ({ ...req, db }),
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});
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server.start({ playground: '/playground' }, ({ port }) =>
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console.log('Server is running on localhost:' + port)
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);
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}
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conn.login(USERNAME, PASSWORD, (err, userinfo) => init());
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```
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#### `schema.graphql`
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```graphql
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type Query {
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Account(Id: ID!): Account
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Accounts(limit: Int): [Account]
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Contact(Id: ID!): Contact
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Contacts(limit: Int): [Contact]
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}
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type Account {
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Id: ID!
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IsDeleted: Boolean
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Name: String
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Type: String
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Contacts(limit: Int): [Contact]
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}
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type Contact {
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Id: ID!
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Account: Account
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AccountId: String
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LastName: String
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FirstName: String
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Salutation: String
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Name: String
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}
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```
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When you are ready, start the GraphQL server:
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```sh
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$ yarn start
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```
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Head over to `http://localhost:4000/playground` to test with the following query:
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```graphql
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{
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Account(Id: "001E000001KnMkTIAV") {
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Id
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Name
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Contacts(limit: 1) {
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Name
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AccountId
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Account {
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Name
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}
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}
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}
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}
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```
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## Sample GraphIQL Output
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![Sample Output](assets/output.png)
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## References
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- [`salesforce-graphql` on NPM](https://www.npmjs.com/package/salesforce-graphql)
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- Learn more about [GraphQL](http://graphql.org/)
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- [Salesforce REST API](https://developer.salesforce.com/docs/atlas.en-us.api_rest.meta/api_rest/intro_what_is_rest_api.htm) documentation
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* [`salesforce-graphql` on NPM](https://www.npmjs.com/package/salesforce-graphql)
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* Learn more about [GraphQL](http://graphql.org/)
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* [Salesforce REST API](https://developer.salesforce.com/docs/atlas.en-us.api_rest.meta/api_rest/intro_what_is_rest_api.htm) documentation
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## Extra
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- Looking for [new opportunities](https://mavens.com/careers/)? Have a look at [Mavens](https://mavens.com/) website!
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* Looking for [new opportunities](https://mavens.com/careers/)? Have a look at [Mavens](https://mavens.com/) website!

‎examples/apollo/package.json

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{
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"name": "apollo",
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"version": "1.0.0",
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"main": "index.js",
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"license": "MIT",
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"scripts": {
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"start": "nodemon -e ts -x ts-node src/index.ts"
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},
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"dependencies": {
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"apollo-server-express": "^1.3.5",
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"body-parser": "^1.18.2",
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"cookie-parser": "^1.4.3",
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"cookie-session": "^2.0.0-beta.3",
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"dataloader": "^1.4.0",
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"dotenv": "^5.0.1",
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"express": "^4.16.3",
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"express-session": "^1.15.6",
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"graphql": "^0.13.2",
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"graphql-tools": "^2.24.0",
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"jsforce": "^1.8.4",
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"passport": "^0.4.0",
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"passport-forcedotcom": "^0.1.4"
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},
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"devDependencies": {
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"@types/node": "^9.6.6"
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}
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}

‎examples/apollo/src/index.ts

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import { graphiqlExpress, graphqlExpress } from 'apollo-server-express';
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import * as bodyParser from 'body-parser';
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import * as cookieParser from 'cookie-parser';
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import * as cookieSession from 'cookie-session';
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import * as DataLoader from 'dataloader';
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import * as express from 'express';
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import { makeExecutableSchema } from 'graphql-tools';
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import * as jsforce from 'jsforce';
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import * as passport from 'passport';
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import { Strategy } from 'passport-forcedotcom';
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import { cookieOptions, strategyOptions } from './lib/config';
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import typeDefs from './lib/typeDefs';
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import resolvers from './resolvers';
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const app = express();
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passport.use(new Strategy(strategyOptions, (token, _1, _2, done) => done(null, token.params)));
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app.use(cookieParser());
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app.use(cookieSession(cookieOptions));
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app.use(passport.initialize());
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app.use(passport.session());
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passport.serializeUser((token, done) => done(null, token));
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passport.deserializeUser((token, done) => done(null, token));
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app.get('/auth/salesforce', passport.authenticate('forcedotcom'));
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app.get(
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'/services/oauth2/callback',
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passport.authenticate('forcedotcom', { failureRedirect: '/error' }),
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(req, res) => res.redirect('/graphiql')
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);
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app.use('/graphiql', graphiqlExpress({ endpointURL: '/graphql' }));
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const executeQuery = ({ access_token, instance_url }, query) =>
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new jsforce.Connection({
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version: '42.0',
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accessToken: access_token,
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instanceUrl: instance_url,
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})
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.query(query)
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.then(response => response.records);
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const insert = ({ access_token, instance_url }, sobjectName, data) =>
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new jsforce.Connection({
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version: '42.0',
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accessToken: access_token,
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instanceUrl: instance_url,
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})
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.sobject(sobjectName)
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.create(data);
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app.use('/graphql', bodyParser.json(), (req: any, res, next) => {
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const queryLoader = new DataLoader(keys =>
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Promise.all(keys.map(query => executeQuery(req.user, query)))
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);
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const db = { insert: (sobjectName, data) => insert(req.user, sobjectName, data) };
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return graphqlExpress({
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schema: makeExecutableSchema({ typeDefs: typeDefs, resolvers: resolvers as any }),
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context: { user: req.user, loaders: { query: queryLoader }, db },
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})(req, res, next);
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});
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app.listen(3000, () => console.log('Now browse to localhost:3000/graphiql'));

‎examples/apollo/src/lib/config.ts

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require('dotenv').config();
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export const {
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SALESFORCE_USERNAME,
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SALESFORCE_PASSWORD,
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JWT_SECRET,
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CALLBACK_URL,
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CLIENT_ID,
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CLIENT_SECRET,
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} = process.env;
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export const cookieOptions = {
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name: 'session',
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keys: ['key1'],
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maxAge: 24 * 60 * 60 * 1000,
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};
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export const strategyOptions = {
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clientID: CLIENT_ID,
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clientSecret: CLIENT_SECRET,
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scope: ['id', 'chatter_api', 'api'],
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callbackURL: CALLBACK_URL,
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};

‎examples/apollo/src/lib/fieldLists.ts

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export const contactFields = [
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'AccountId',
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'AssistantName',
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'AssistantPhone',
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'Birthdate',
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'CreatedById',
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'CreatedDate',
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'CurrencyIsoCode',
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'Department',
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'Description',
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'Email',
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'EmailBouncedDate',
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'EmailBouncedReason',
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'Fax',
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'FirstName',
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'HomePhone',
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'Id',
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'IsDeleted',
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'IsEmailBounced',
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'Jigsaw',
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'JigsawContactId',
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'LastActivityDate',
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'LastCURequestDate',
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'LastCUUpdateDate',
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'LastModifiedById',
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'LastModifiedDate',
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'LastName',
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'LastReferencedDate',
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'LastViewedDate',
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'LeadSource',
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'MailingAddress',
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'MailingGeocodeAccuracy',
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'MasterRecordId',
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'MobilePhone',
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'Name',
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'OtherAddress',
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'OtherGeocodeAccuracy',
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'OtherPhone',
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'OwnerId',
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'Phone',
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'PhotoUrl',
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'ReportsToId',
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'Salutation',
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'SystemModstamp',
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'Title',
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];
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export const accountFields = [
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'AccountNumber',
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'AccountSource',
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'AnnualRevenue',
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'BillingAddress',
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'BillingGeocodeAccuracy',
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'CreatedById',
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'CreatedDate',
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'CurrencyIsoCode',
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'Description',
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'Fax',
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'Id',
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'Industry',
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'IsCustomerPortal',
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'IsDeleted',
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'IsPartner',
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'Jigsaw',
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'JigsawCompanyId',
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'LastActivityDate',
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'LastModifiedById',
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'LastModifiedDate',
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'LastReferencedDate',
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'LastViewedDate',
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'MasterRecordId',
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'Name',
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'NumberOfEmployees',
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'OwnerId',
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'Ownership',
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'ParentId',
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'Phone',
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'PhotoUrl',
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'Rating',
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'RecordTypeId',
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'ShippingAddress',
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'ShippingGeocodeAccuracy',
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'Sic',
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'SicDesc',
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'Site',
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'SystemModstamp',
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'TickerSymbol',
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'Type',
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'Website',
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];

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