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https://github.com/couchset/couchset

Couchbase ORM & Automatic GraphQL API(Resolver/Queries)
https://github.com/couchset/couchset

couchbase couchbase-cluster couchbase-community couchbase-enterprise couchbase-server database-connector graphql graphql-client graphql-server orm-framework orm-library

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Couchbase ORM & Automatic GraphQL API(Resolver/Queries)

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CouchSet - Couchbase ORM & Automatic GraphQL API generator (Resolver/Queries)

NPM


CouchSet is a Couchbase ORM & Automatic GraphQL API code generator (Resolver/Queries) tool

- [Install](#install)
- [License](#license)

## 1. Install
```bash
npm i couchset --save
```

## 2. Start couchset
```ts
import { couchset } from 'couchset';

const started = await couchset({
connectionString: 'couchbase://localhost',
username: 'admin',
password: '123456',
bucketName: 'stq'
})
```

## 3. Create a Model and start using it

```ts
import { Model } from 'couchset';

const userModel = new Model('User');

// Create document
const created = await userModel.create({
username: 'ceddy',
password: 'love couchbase',
});

// Find document
const foundData = await userModel.findById(created.id);

// update document
const updatedData = await userModel.updateById(created.id, { ...created, someValue: 'x' });

// delete
const deletedData = await userModel.delete(created.id);

```

## 4. Pagination

All models come with a method for automatic pagination
```ts
const paginationData = await userModel.pagination({
select: ["id", "email", "phone","fullname"],
where: {
userId: { $eq: "ceddy" },
$or: [{ userId: { $eq: "ceddy" } }, { phone: 10 }],
},
limit: 100,
page: 0,
});
```

which translates to this query

```sql
SELECT * FROM `stq` WHERE _type="User" AND userId="ceddy" AND (userId="ceddy" OR phone=10) ORDER BY createdAt DESC LIMIT 100 OFFSET 0
```

Pagination results

```js
[
{
id: '209d3143-09b7-4b3d-bf7d-f0ccd3f98922',
updatedAt: 2021-01-26T01:51:43.218Z,
createdAt: 2021-01-26T01:51:43.210Z,
_type: 'User',
userId: 'ceddy',
password: '...',
someValue: 'x'
},
{
id: '1392e4f6-ae1e-4e01-b7d5-103bdd0e843f',
updatedAt: 2021-01-26T01:51:29.591Z,
createdAt: 2021-01-26T01:51:29.583Z,
_type: 'User',
userId: 'ceddy',
password: '...',
someValue: 'x'
}
]
```

## 5. Custom queries & Query builder
Query builder is inspired from node-ottoman, for more examples, please see https://ottomanjs.com/guides/query-builder.html#query-builder

```ts
import { Query } from 'couchset';

const params = {
select: [
{
$count: {
$field: {
name: 'type',
},
as: 'odm',
},
},
],
let: [
{ key: 'amount_val', value: 10 },
{ key: 'size_val', value: 20 },
],
where: {
$or: [{ price: { $gt: 'amount_val', $isNotNull: true } }, { auto: { $gt: 10 } }, { amount: 10 }],
$and: [
{ price2: { $gt: 1.99, $isNotNull: true } },
{ $or: [{ price3: { $gt: 1.99, $isNotNull: true } }, { id: '20' }] },
],
$any: {
$expr: [{ $in: { search_expr: 'search', target_expr: 'address' } }],
$satisfied: { address: '10' },
},
$in: { search_expr: 'search', target_expr: ['address'] },
},
groupBy: [{ expr: 'type', as: 'sch' }],
letting: [
{ key: 'amount_v2', value: 10 },
{ key: 'size_v2', value: 20 },
],
having: { type: { $like: '%hotel%' } },
orderBy: { type: 'DESC' },
limit: 10,
offset: 1,
use: ['airlineR_8093', 'airlineR_8094'],
};

const query = new Query(params, 'travel-sample').build();
console.log(query);

```

which translates to

```sql
SELECT COUNT(type) AS odm FROM travel-sample USE KEYS ["airlineR_8093","airlineR_8094"] LET amount_val=10,size_val=20 WHERE ((price>amount_val AND price IS NOT NULL) OR auto>10 OR amount=10) AND ((price2>1.99 AND price2 IS NOT NULL) AND ((price3>1.99 AND price3 IS NOT NULL) OR id="20")) AND ANY search IN address SATISFIES address="10" END AND search IN ["address"] GROUP BY type AS sch LETTING amount_v2=10,size_v2=20 HAVING type LIKE "%hotel%" ORDER BY type DESC LIMIT 10 OFFSET 1
```

### Running custom query on cluster

```ts
import { QueryCluster } from 'couchset';

const queryresults = await QueryCluster(queryBuilder);
// queryresults = { rows: object[], meta: any}

```

## 6. Model Automation

This is how we automate it to generate code with all methods,schema, queries

```ts
const automaticUser = userModel.automate();
```

After automating the model, `automaticUser` will come with Server-side Resolver functions, and client queries, mutations, subscriptions, like below

```ts
// Get all automatic generated resolvers and queries/fragments,mutations,subscriptions
const {
resolver: UserResolver, // Server resolver for building GraphQL
modelKeys: UserSelectors, // for any custom queries or exporting
client, // client queries,mutations,subscriptions
} = automaticUser;

```

## 7. Write to filesystem
TODO






#### Contributors needed
- Create automatic pagination ✅
- Create Schema and validation/population ✅
- Create static methods for models like `save`, `update`, `findMany` e.t.c ✅
- Automated indexes (only couchbase enterprise) ✅
- Geospatial queries ✅
- FTS queries ✅




Algo Inc

## License
Couchset is [MIT licensed](./LICENSE).