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Sep 14, 2020
Merged

Generate 1000 users on app run, then pull from those for posts #9

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aad2235
Generate 1000 users on app run, then pull from those for posts
StephixOne Sep 14, 2020
68cbe7c
Force post dates in 2019
StephixOne Sep 14, 2020
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148 changes: 73 additions & 75 deletions src/resolvers/index.ts
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Original file line number Diff line number Diff line change
@@ -1,168 +1,166 @@
import * as scuid from 'scuid';
import * as scuid from 'scuid'

import { generateAuthToken, getUserId, likelyTopics } from '../utils';
import {
generateAuthToken,
getUserId,
likelyTopics,
predefinedUsers,
} from '../utils'

const DEFAULT_COUNT = 25;
const DEFAULT_COUNT = 25

export default {
Query: {
me: (parent, args, ctx) => {
const userId = getUserId(ctx);
const { faker } = ctx;
const userId = getUserId(ctx)
const { faker } = ctx

return {
id: userId,
firstName: faker.name.firstName(),
lastName: faker.name.lastName(),
email: faker.internet.email(),
avatar: faker.image.avatar()
};
avatar: faker.image.avatar(),
}
},

allUsers(parent, { count = DEFAULT_COUNT }, { faker }) {
return new Array(count).fill(0).map(_ => ({
id: scuid(),
allUsers: (parent, { count = DEFAULT_COUNT }, { faker }) =>
predefinedUsers.slice(0, count),

User: (parent, { id }, { faker }) =>
predefinedUsers.filter((user) => user.id === id)[0] || {
id,
firstName: faker.name.firstName(),
lastName: faker.name.lastName(),
email: faker.internet.email(),
avatar: faker.image.avatar()
}));
},

User: (parent, { id }, { faker }) => ({
id,
firstName: faker.name.firstName(),
lastName: faker.name.lastName(),
email: faker.internet.email(),
avatar: faker.image.avatar()
}),
avatar: faker.image.avatar(),
},

allProducts: (parent, { count = DEFAULT_COUNT }, { faker }) => {
return new Array(count).fill(0).map(_ => ({
return new Array(count).fill(0).map((_) => ({
id: scuid(),
price: faker.commerce.price(),
name: faker.commerce.productName()
}));
name: faker.commerce.productName(),
}))
},

Product: (parent, { id }, { faker }) => ({
id,
price: faker.commerce.price(),
name: faker.commerce.productName()
name: faker.commerce.productName(),
}),

Todo: (parent, { id }, { faker }) => ({
id,
title: faker.random.words(),
completed: faker.random.boolean()
completed: faker.random.boolean(),
}),

allTodos: (parent, { count = DEFAULT_COUNT }, { faker }) => {
return new Array(count).fill(0).map(_ => ({
return new Array(count).fill(0).map((_) => ({
id: scuid(),
title: faker.random.words(),
completed: faker.random.boolean()
}));
completed: faker.random.boolean(),
}))
},

// refactor user relation into Class
Post: (parent, { id }, { faker }) => {
const title = faker.random.words();
const body = faker.lorem.paragraphs();
const firstName = faker.name.firstName();
const lastName = faker.name.lastName();
const title = faker.random.words()
const body = faker.lorem.paragraphs()
const firstName = faker.name.firstName()
const lastName = faker.name.lastName()
return {
id,
title,
body,
published: faker.random.boolean(),
createdAt: faker.date.past(),
createdAt: faker.date.between(
new Date('2019-01-01'),
new Date('2019-12-31'),
),
author: {
id: scuid(),
firstName,
lastName,
email: faker.internet.email(),
avatar: faker.image.avatar()
avatar: faker.image.avatar(),
},
likelyTopics: likelyTopics(
`${firstName} ${lastName}`,
title, body
)
};
likelyTopics: likelyTopics(`${firstName} ${lastName}`, title, body),
}
},

// refactor user relation into Class
allPosts: (parent, { count }, { faker }) => {
return new Array(count).fill(0).map(_ => {
const title = faker.random.words();
const body = faker.lorem.paragraphs();
const firstName = faker.name.firstName();
const lastName = faker.name.lastName();
const usersToUse = predefinedUsers.slice(
0,
count > 200 ? Math.ceil(count / 50) : Math.ceil(count / 20),
)
return new Array(count).fill(0).map((_) => {
const title = faker.random.words()
const body = faker.lorem.paragraphs()
const user = usersToUse[Math.floor(Math.random() * usersToUse.length)]
const firstName = user.firstName
const lastName = user.lastName
return {
id: scuid(),
title,
body,
published: faker.random.boolean(),
createdAt: faker.date.past(),
author: {
id: scuid(),
firstName,
lastName,
email: faker.internet.email(),
avatar: faker.image.avatar()
},
likelyTopics: likelyTopics(
`${firstName} ${lastName}`,
title, body
)
createdAt: faker.date.between(
new Date('2019-01-01'),
new Date('2019-12-31'),
),
author: user,
likelyTopics: likelyTopics(`${firstName} ${lastName}`, title, body),
}
});
}
})
},
},

Mutation: {
register: async (
parent,
{ email, password, expiresIn = '2d' },
{ jwtSecret },
info
info,
) => ({
token: await generateAuthToken(
{ userId: scuid(), email },
jwtSecret,
expiresIn
)
expiresIn,
),
}),

login: async (
parent,
{ email, password, expiresIn = '2d' },
{ jwtSecret },
info
info,
) => ({
token: await generateAuthToken(
{ email, userId: scuid() },
jwtSecret,
expiresIn
)
expiresIn,
),
}),

updateUser: (parent, { id, firstName, lastName, email, avatar }, ctx) => {
const userId = getUserId(ctx);
const { faker } = ctx;
const userId = getUserId(ctx)
const { faker } = ctx

return {
id: userId,
firstName: firstName === undefined ? faker.name.firstName() : firstName,
lastName: lastName === undefined ? faker.name.lastName() : lastName,
email: email === undefined ? faker.internet.email() : email,
avatar: avatar === undefined ? faker.image.avatar() : avatar
};
avatar: avatar === undefined ? faker.image.avatar() : avatar,
}
},

// No authentication for demo purposes
createTodo: (parent, { title, completed }, { faker }) => {
const id = scuid();
const id = scuid()

// pubsub.publish('todoAdded', {
// todoAdded: {
Expand All @@ -175,10 +173,10 @@ export default {
return {
id,
title,
completed: completed === undefined ? faker.random.boolean() : completed
};
}
}
completed: completed === undefined ? faker.random.boolean() : completed,
}
},
},

// Subscription: {
// todoAdded: {
Expand All @@ -196,4 +194,4 @@ export default {
// }
// }
// }
};
}
77 changes: 47 additions & 30 deletions src/utils.ts
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Original file line number Diff line number Diff line change
@@ -1,21 +1,24 @@
import * as jwt from 'jsonwebtoken';
import * as scuid from 'scuid'
import * as jwt from 'jsonwebtoken'
import * as faker from 'faker/locale/en'
import { create } from 'domain'

export const generateAuthToken = (payload, secret, expiresIn) =>
jwt.sign(payload, secret, {
expiresIn
});
expiresIn,
})

export const getUserId = ctx => {
const Authorization = ctx.request.get('Authorization');
export const getUserId = (ctx) => {
const Authorization = ctx.request.get('Authorization')

if (Authorization) {
const token = Authorization.replace('Bearer ', '');
const { userId } = jwt.verify(token, process.env.JWT_SECRET);
return userId;
const token = Authorization.replace('Bearer ', '')
const { userId } = jwt.verify(token, process.env.JWT_SECRET)
return userId
}

throw new Error('Not Authorized');
};
throw new Error('Not Authorized')
}

// Ten randomly-chosen but consistent topic nouns.
export const topicWords = [
Expand All @@ -28,37 +31,51 @@ export const topicWords = [
'community',
'celebrity',
'birthday',
'potato'
];
'potato',
]

export const likelyTopics = (user, title, body) => {
// create a custom order over the topics, based on letters as they appear in
// the user's name, post title, and post body, for variability
const alphabet = `${title} ${user} ${body}`;
const alphabet = `${title} ${user} ${body}`
const topicLabels = topicWords.sort((a, b) => {
for (let i = 0; i < Math.min(a.length, b.length); i++) {
const aValue = alphabet.indexOf(a[i]);
const bValue = alphabet.indexOf(b[i]);
const aValue = alphabet.indexOf(a[i])
const bValue = alphabet.indexOf(b[i])
if (aValue !== bValue) {
return bValue - aValue;
return bValue - aValue
}
}
return b.length - a.length;
return b.length - a.length
})
// compute a biased probability distribution
const likelihoods = [];
let total = 0;
const likelihoods = []
let total = 0
for (let i = 0; i < topicLabels.length; i++) {
const weight = Math.random() * Math.log(i + 2);
total += weight;
likelihoods.push(weight);
const weight = Math.random() * Math.log(i + 2)
total += weight
likelihoods.push(weight)
}
likelihoods.reverse();
likelihoods.reverse()
// and associate each likelihood with a probability
return likelihoods.map((weight, i) => {
return {
likelihood: weight / total,
label: topicLabels[i]
}
}).sort((a, b) => b.likelihood - a.likelihood);
};
return likelihoods
.map((weight, i) => {
return {
likelihood: weight / total,
label: topicLabels[i],
}
})
.sort((a, b) => b.likelihood - a.likelihood)
}

export const createFullUser = () => ({
id: scuid(),
firstName: faker.name.firstName(),
lastName: faker.name.lastName(),
email: faker.internet.email(),
avatar: faker.image.avatar(),
})

export const predefinedUsers = new Array(1000)
.fill(null)
.map((_) => createFullUser())