Who posts receipt to stream verifier balance?

dfoderick · May 26, 2020, 10:48pm

Not sure if this is a coil question or ILP.

I want to know which entity is responsible for posting the receipt to the verifier API.

In the ILP docs it states:
“Receipts are generated by the receiver and passed to the sender, who may submit the receipts directly or indirectly to the verifier”

Specifically, in the reference implementation, who calls this method?

github.com

coilhq/receipt-verifier/blob/eeccf81420c10dda77c50721eda67a1c9645025e/src/services/Balances.ts#L29



constructor (deps: Injector) {
  this.config = deps(Config)
  this.redis = deps(Redis)
}

start (): void {
  const koa = new Koa()
  const router = new Router()

  router.post('/balances/:id\\:creditReceipt', async (ctx: Koa.Context) => {
    const body = await raw(ctx.req, {
      limit: RECEIPT_LENGTH_BASE64
    })

    let receipt: Receipt
    try {
      const receiptBytes = Buffer.from(body.toString(), 'base64')
      receipt = decodeReceipt(receiptBytes)
      verifyReceipt(receiptBytes, generateReceiptSecret(this.config.receiptSeed, receipt.nonce))
    } catch (error) {

If it is coil, then how do I let coil know my api url?

dfoderick · May 27, 2020, 1:07am

Nevermind. I think I found it.

github.com

coilhq/web-monetization-projects/blob/781731fc6690f1fc64bab67522502b4089bdb9ed/packages/web-monetization-demo/src/client/Index.tsx#L45


        `http://localhost:4001/balance/${state.requestId}`
      )
      if (resp.ok) {
        const body = await resp.json()
        setServerBalance(body.balance)
      }
    }, 1e3)
  }
}, [state.requestId])
useEffect(() => {
  async function submitReceipt(requestId: string, receipt: string) {
    const resp = await fetch(
      `http://localhost:4001/balance/${requestId}:creditReceipt`,
      {
        method: 'POST',
        body: receipt
      }
    )
    if (resp.ok) {
      const body = await resp.json()
      setServerBalance(body.balance)

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Who posts receipt to stream verifier balance?

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