main:
    params: [input]
    steps:
    - assignment:
        assign:
            - bucket: YOUR_BUCKET_NAME
            - name: YOUR_FILE_NAME.json
    - read_from_gcs:
        call: http.get
        args:
            url: ${"https://storage.googleapis.com/download/storage/v1/b/" + bucket + "/o/" + name}
            auth:
                type: OAuth2
            query:
                alt: media
        result: data_json_content
    - return_content:
        return: ${data_json_content.body}

Load and read content from a JSON file in GCS
Load and read content from a JSON file in GCS