Appwrite Migration is a comprehensive utility designed to streamline database migrations within the Appwrite Ecosystem. This library facilitates seamless schema and data transitions, enhancing the ease and predictability of managing different environments.

We strongly recommend reading through the entire README, paying close attention to Setting-up and Recommendations sections!

To install the package, simply follow the below commands:

# using npm
npm install appwrite-migration

# using yarn
yarn add appwrite migration

Before getting started with the documentation you must have a basic knowledge of what Appwrite is and how to integrate in your project. You can have a quick look by clicking on the link here.

After the installation, extract the function createAppwriteMigrationClient from appwrite-migration

import { createAppwriteMigrationClient } from "appwrite-migration";

const appwriteObject = createAppwriteMigrationClient(
  endPoint,
  projectID,
  apiKey
);

The createAppwriteMigrationClient() function accepts 3 parameters:-

1. Endpoint: it the endpoint of your appwrite server
2. ProjectID: it is the ID of the project instance that you create in which you want the migration functionality
3. APIKey: it is a unique private key which is generated a the appwrite instance.

The Appwrite Object helps you to access 4 functions so that you can migrate your collections, buckets. The 4 methods are:

• generateSchema()
• prepareSchema()
• generateData()
• prepareData()

Note: support for function migration is coming soon.

generateSchema() method collects the data from the provided Appwrite account instance and returns the json to store it into the file. Below is the example on how to collect it:

const schema = await appwriteObject.generateSchema();

To save the json into a file, you can follow the below code snippet:

import { writeFileSync } from "fs";

const generateSchemaFile = async () => {
  writeFileSync("schema.json", JSON.stringify(schema, null, 2), {
    encoding: "utf-8",
  });
};

prepareSchema() method prepares the schema of collection and bucket into the appwrite instance that is provided. It accepts parsed json as input that is generated using the help of generateSchema() method.

Note: it generates a fresh schema so note to take backup of your data as it will delete the previous data.

To use this function follow the below command to read the .json file from your local machine

import { readFileSync } from "fs";

export const prepareSchemaFile = () => {
  const fileContent = readFileSync("schema.json", { encoding: "utf-8" });
  const schema = JSON.parse(fileContent);
  return schema;
};

To load the schema file into the function, follow the below command:

let schemaFile = prepareSchemaFile();

await appwriteObject.prepareSchema(schemaFile);

generateData() method collects the data from the provided schema file which is generated using generateSchema() method. This method accepts schema as a parameter and return the documents in the form .json file which can be written in a file.

const schema = await appwriteObject.generateSchema();

const generatedData = await appwriteObject.generateData(schema);

To save the json into a file, you can follow the below code snippet:

import { writeFileSync } from "fs";

const generateDataFile = async () => {
  writeFileSync("data.json", JSON.stringify(generatedData, null, 2), {
    encoding: "utf-8",
  });
};

prepareData() method prepares the data of collection and bucket from .json file to migrate to the server. It accepts parsed json as input that is generated using the help of generateData() method.

Note: this method will help you to migrate the code into a new appwrite instance.

To use this function follow the below command to read the .json file from your local machine

import { readFileSync } from "fs";

export const prepareDataFile = () => {
  const fileContents = readFileSync("data.json", { encoding: "utf-8" });
  const data: Data = JSON.parse(fileContents);
  return data;
};

To load the data file into the function, follow the below command:

let schemaFile = prepareDataFile();

await appwriteObject.prepareData(schemaFile);

apwrite-migration is licensed under the MIT License - see the LICENSE file for details.

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