JavaScript implementation

The JavaScript example implementation of the Usage scenario offers a Web form, that allows to specify the job input parameters and submit it into the Cloud Pipeline via the API.

Prerequisites

• NodeJS 10.15.3+
• npm 6.4.1+

Setup the configuration

Locate the JavaScript sample application at js_example or clone it from the Cloud Pipeline repository:

git clone https://github.com/epam/cloud-pipeline
cd cloud-pipeline/docs/md/api/API_tutorials/attachments/js_example/

Open the configuration file config.js and replace the following values:

• <host> - set to the host of the Cloud Pipeline API
• <storage_id> - set to the ID of the bucket, that is going to be used as a "working directory". FASTQ files and processing results will placed into this bucket

Start the application

# Install dependencies and start the app
# UI will be served on 0.0.0.0:3010
npm install
npm run start

Application description

Once app is built and loaded in the web-browser one can perform the following operations:

• Setup the cellranger parameters
  • Set the location of the FASTQ files
  • Choose the transcriptome
  • Specify the "workdir", where the job will keep the results

• Once the job parameters are set, user can click LAUNCH and the job is submitted to the Cloud Pipeline backend via the HTTP/REST API

• Application will poll the Cloud Pipeline API until the job is finished
• Once done, application will load the cellranger's data processing summary from the job results folder and display it in the web-browser