create polling mode

[championswimmer]

for POST /api/run an extra body parameter called mode

Possible values of mode are -

• sync
• poll
• callback

For sync mode

• current mode of operation
• request is held till judgement is over, and then response is sent

Poll mode

• on request, we create a new job id
• send the job id in the response
• when judgement is over, in db, update the job status to done
• client can continuosly request status of job via job id
• GET /api/run/:jobid
  • responds status: running till it is incomplete
  • responses status: success or status: error with output and error base64 when done

callback mode (or webhook mode)

• request body will contain a callbackUrl param also
• when job is done, judge will make a POST request to callbackUrl

[championswimmer]

For callback and poll mode, we need to save the outputs to a S3 bucket file and keep the path in the database too

The Submissions model needs to be updated accordingly for that.

[championswimmer]

use this to run dummy s3 server https://www.npmjs.com/package/s3rver

[abhishek97]

@championswimmer I propose the api should also have a encodingType body parameter to determine the encoding for the source and input values. For now we will support base64 and url

[championswimmer]

enc (default: base64)

[abhishek97]

Submissions

output    Array:string    An array containg link to outputs

Will be storing {submissionId}.json files on s3 with the result recieved on success queue.