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Upgrading to OneSDK v2.0

This guide aims to help users of OneSDK for Node.js (@superfaceai/one-sdk) with upgrade to version 2.0.0 and above.

For new features in the release, take a look at the announcement post. See the changelog for the full list of changes.


OneSDK v2.0.0 supports Node.js v14.20, v16.16, v18.7, and above.

Breaking change: Removal of parser

The biggest breaking change is removal of the Comlink parser from the core of OneSDK. This change affects only projects with local .supr and .suma files linked from super.json file. OneSDK won't parse local files automatically, instead you need to compile them with Superface CLI.

Follow these steps to see if this change impacts your project and how to adapt to this change.

Check if you are affected

In superface/super.json file, look for the "file" property, for example, the following configuration file uses both local profile and map files.

"profiles": {
"my-profile": {
"file": "./my-profile.supr",
"providers": {
"my-provider": {
"file": "./"

If you don't see any "file" property in your configuration file, this breaking change does not impact your project.

Compile source maps to AST

To upgrade your project to OneSDK v2.0, you will need to compile the source .supr and .suma files to their AST form (with .ast.json extension).

You can run the following command to perform a one-off compilation:

npx @superfaceai/cli@3 compile

This will generate .ast.json files next to the existing source files linked from super.json file.


The compilation is necessary after every change to local files .suma and .supr files.


The .ast.json files must be available in the runtime for OneSDK. It is recommended to commit the .ast.json files to version control.

Add compilation to your build process

To prevent stale changes in source .suma and .supr files, add @superfaceai/cli@3 package to your development dependencies and add the compilation step into your build process.

First, install the CLI dev dependency:

npm i --save-dev @superfaceai/cli@3

Next, create npm scripts in project's package.json.

For a vanilla JavaScript application without an existing build step, make sure to run the compilation before running and testing the application. You can use pre- scripts to achieve that:

"scripts": {
"compile": "superface compile",
"prestart": "npm run compile",
"pretest": "npm run compile"

If your application already has a build step (for example, with TypeScript, or Next.js), the compilation can run before the build script:

"scripts": {
"prebuild": "superface compile"

Change of the cache directory location

OneSDK relies on a runtime cache to store AST files of remote profiles the application depends upon. Previously, these files were stored in superface/.cache directory. In OneSDK v2.0.0 this location changed to node_modules/.cache/superface. The cache directory is created automatically, no change is necessary.

If this directory isn't writable in the runtime, you can either deploy it with your application (for example, include it in the Docker image), or disable the file system cache completely, upon OneSDK initialization:

const { SuperfaceClient } = require('@superfaceai/one-sdk');

const sdk = new SuperfaceClient({
cache: false,

Optional cleanups

You can safely remove the following folders, as they're no longer required by OneSDK v2.0:

  • superface/.cache
  • superface/grid
  • superface/types

Only the super.json file remains in the superface folder.