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Basic structure

Let’s create our first connector


A video tutorial to create your first connector is available 🎬

Run the sample

The easiest way to create a new connector is to use cozy-konnector-template.

First of all, download or clone the repository:

git clone cozy-konnector-newservice
cd cozy-konnector-newservice
rm -rf .git
git init
yarn install # or npm install

note: we use yarn, but if you prefer npm, keep using it, everything should work.

The connector is ready to run with sample code. As a demo we will scrape a fictional website:, for which you do not need credentials.

As indicated in the file, just run:

yarn standalone # or npm run standalone

The very first run will create a konnector-dev-config.json file that allows you to configure the connector input when executing it with the CLI. This configuration comes from Cozy Home when deployed.

  "COZY_URL": "",
  "fields": {
    // configuration injected to the start function

The fields property allows you to set credentials for the targeted web service, such as login and password as if they come from Cozy Stack (so from a real Cozy Cloud instance). You can add as many fields as the targeted service needs.

The COZY_URL property will be used later. You do not need to change it for now.

As explained earlier, the demo website does not need any credentials. But for the code to run without error, you need to register a fake login and a fake password:

  "COZY_URL": "",
  "fields": {
    "login": "zuck.m@rk.fb",
    "password": "123456"

In the template, this configuration file is already added to .gitignore file to be sure your credentials stay private.

Now you can run the connector again in standalone mode to see how jpg and related data are downloaded. In this mode, cozy-client-js is stubbed and all data meant to be saved in a cozy are displayed in the standard output and files are saved in the ./data directory of the connector. This is useful to start developing your connector without handling the state of a real cozy stack.

Please check CLI section of the documentation for more information.

If you have arrived here, good job ! You are ready to implement your connector.