eugbyte / temporal_project

Experimentating with temporal and Go

Temporal project

Project to explore Temporal API with Encore.dev framework.

RESTFUL service to trigger temporal workflows w.r.t to Bills. Ability to start workflow to increase invoice, and await confirmation signal.

Installation

To run:

1. Install Encore.dev
2. Install Temporal locally
3. On a terminal, run make temporal.
4. On another, run make dev to run encore.

Test

make test

Overall flow

1. Create Bill

curl --location --request POST 'http://127.0.0.1:4000/bill/456'

Response:

{
    "ID": "456",
    "status": "OPEN",
    "transactions": []
}

2. Increase Bill, pending confirmation

curl --location --request PUT 'http://127.0.0.1:4000/bill/456/' \
--header 'Content-Type: application/json' \
--data '{
    "timestamp": 10000,
    "itemName": "abc",
    "amount": {
        "number": 100,
        "currency": "USD"
    }
}'

Response

{
    "BillID": "456",
    "WorkflowID": "bill-456-XmrdfVQAtZXJ43BPtd45D"
}

The BillID and the WorkflowID will be used to trigger the confirmation endpoint.

3. Send Confirmation

curl --location 'http://127.0.0.1:4000/confirm/bill/456/bill-456-XmrdfVQAtZXJ43BPtd45D'

Response

{
    "message": "invoiced confirmed"
}

4. Get Bill

Specify currency via query param, e.g. currency=GEL. Otherwise, currency defaults to USD.

curl --location 'http://127.0.0.1:4000/bill/456?currency=GEL'

Response:

{
    "ID": "456",
    "status": "CLOSED",
    "transactions": [
        {
            "timestamp": 10000,
            "itemName": "abc",
            "amount": {
                "number": "271.00",
                "currency": "GEL"
            }
        }
    ]
}

5. Close Bill

curl --location --request PUT 'http://127.0.0.1:4000/close/bill/456/'

Response:

{
    "items": [
        "abc"
    ],
    "total": {
        "number": "100",
        "currency": "USD"
    }
}