feathers-prisma

A Feathers service adapter for Prisma ORM.

Installation

npm install feathers-prisma --save

Documentation

This adapter supports all methods (create, delete, update, patch, find, get) and the common way for querying (equality, $limit, $skip, $sort, $select, $in, $nin, $lt, $lte, $gt, $gte, $ne, $or, $and). Also supports eager loading ($eager), full-text search ($search) and prisma filtering ($rawWhere).

Setup

import feathers from "@feathersjs/feathers";
import { service } from "feathers-prisma";
import { PrismaClient } from "@prisma/client";

// Initialize the application
const app = feathers();

// Initialize the plugin
const prismaClient = new PrismaClient();
prismaClient.$connect();
app.set("prisma", prismaClient);

const paginate = {
  default: 10,
  max: 50,
};

app.use(
  "/messages",
  service(
    {
      model: "messages",
      paginate,
      multi: ["create", "patch", "remove"],
      whitelist: ["$eager"],
    },
    prismaClient
  )
);

Eager Loading / Relation Queries

Relations can be resolved via $eager property in your query. It supports also deep relations. The $eager property has to be set in the whitelist option parameter. Otherwise the service will throw an error.

app.use(
  "/messages",
  service(
    {
      model: "message",
      whitelist: ["$eager"],
    },
    prismaClient
  )
);
// will load the recipients with the related user
// as well as all attachments  of the messages
app.service("messages").find({
  query: {
    $eager: [["recipients", ["user"]], "attachments"],
  },
});
// selecting specific fields is also supported since 0.4.0
app.service("messages").find({
  query: {
    $eager: {
      recipients: ["receivedAt", "user"],
    },
  },
});

Filter with default prisma filters

with $rawWhere:

Since 0.5.0 it is possible to use default prisma filters. This makes it possible to filter JSON fields or to filter relations.

The $rawWhere property has to be set in the whitelist option parameter. Otherwise the service will throw an error.

app.use(
  "/messages",
  service(
    {
      model: "message",
      whitelist: ["$rawWhere"],
    },
    prismaClient
  )
);
// will load all messages where at least one of the recipients userIds is equal 1
app.service("messages").find({
  query: {
    recipients: {
      $rawWhere: {
        some: {
          userId: 1,
        },
      },
    },
  },
});

with params.prisma:

Write a raw Prism query by overwriting the params.primsa. Currently this is only available for find service calls. WARNING: params.prisma may possibly overwrite the original feathers query.

app.use(
  "/messages",
  service<"message">(
    {
      model: "message",
      whitelist: ["$rawWhere"],
    },
    prismaClient
  )
);
// will load all messages where at least one of the recipients userIds is equal 1
app.service("messages").find({
  prisma: {
    where: {
      recipients: {
        some: {
          userId: 1,
        },
      },
    }
  },
});

Batch requests

This adapter supports batch requests. This is possible by allowing this in the multi property in the service options. Supported methods are create, patch and delete.

app.use(
  "/messages",
  service(
    {
      model: "messages",
      multi: ["create", "patch", "delete"],
    },
    prismaClient
  )
);

app.service("messages").create([{ body: "Lorem" }, { body: "Ipsum" }]);

Full-Text Search

Prisma supports a full-text search which is currently in preview mode. Find out more how to activate it here. If you activated it through your schema you have to allow it in the whitelist property:

app.use(
  "/messages",
  service(
    {
      model: "messages",
      whitelist: ["$search"],
    },
    prismaClient
  )
);

app.service("messages").find({
  query: {
    body: {
      $search: "hello | hola",
    },
  },
});

Complete Example

Here's an example of a Feathers server that uses feathers-prisma.

import feathers from "@feathersjs/feathers";
import { service } from "feathers-prisma";

// Initialize the application
const app = feathers();

// Initialize the plugin
const prismaClient = new PrismaClient();
prismaClient.$connect();
app.set("prisma", prismaClient);

const paginate = {
  default: 10,
  max: 50,
};

app.use(
  "/messages",
  service(
    {
      model: "messages",
      paginate,
      multi: ["create", "patch", "remove"],
      whitelist: ["$eager"],
    },
    prismaClient
  )
);

// Or if you want to extend the service class
import { PrismaService } from "feathers-prisma";

License

Copyright (c) 2021.

Licensed under the MIT license.