A puller transfers against a subscription
Source: subscriptions/tests/test_transfer_subscription.rs L199
- When: the user initializes a subscription authority
- Then: init authority succeeds ✓
- When: the merchant creates plan 1
- Then: create plan succeeds ✓
- When: the subscriber subscribes
- Then: subscribe succeeds ✓
- Then: the merchant ATA starts empty ✓
- When: a puller transfers against the subscription
- Then: the merchant received 10 tokens ✓
- Then: the pulled-in-period is 10 tokens ✓
Result: ✓ success — 5973 CU · claims 6/6 ✓
sequenceDiagram
participant p0 as merchant
participant p1 as Subscriptions
participant p2 as token
p0->>p1: transferSubscription
activate p1
p1->>p2: transferChecked
activate p2
p2-->>p1: ✓ 113cu
deactivate p2
p1->>p1: emit:subscriptionTransferEvent
activate p1
p1-->>p1: ✓ 137cu
deactivate p1
p1-->>p0: ✓ 5973cu
deactivate p1
Authority
flowchart LR
Subscriptions["Subscriptions"]:::program
Subscription[("Subscription")]:::state
aliceATAUSDCmint[("alice/ATA(USDC mint)")]:::state
merchantATAUSDCmint[("merchant/ATA(USDC mint)")]:::state
merchant(["merchant"]):::signer
token["token"]:::program
SAaliceUSDCmint(["SA(alice, USDC mint)"]):::signer
eventAuthority(["eventAuthority"]):::signer
Subscriptions -->|writes| Subscription
Subscriptions -->|writes| aliceATAUSDCmint
Subscriptions -->|writes| merchantATAUSDCmint
merchant -->|signs| Subscriptions
token -->|writes| aliceATAUSDCmint
token -->|writes| merchantATAUSDCmint
SAaliceUSDCmint -->|signs| token
eventAuthority -->|signs| Subscriptions
classDef program fill:#dae8fc,stroke:#6c8ebf;
classDef signer fill:#d5e8d4,stroke:#82b366;
classDef state fill:#ffe6cc,stroke:#d79b00;
Ownership
flowchart LR
Subscriptions["Subscriptions"]:::program
Subscription[("Subscription")]:::state
token["token"]:::program
aliceATAUSDCmint[("alice/ATA(USDC mint)")]:::state
merchantATAUSDCmint[("merchant/ATA(USDC mint)")]:::state
system["system"]:::program
merchant[("merchant")]:::state
Subscriptions -->|owns| Subscription
token -->|owns| aliceATAUSDCmint
token -->|owns| merchantATAUSDCmint
system -->|owns| merchant
classDef program fill:#dae8fc,stroke:#6c8ebf;
classDef signer fill:#d5e8d4,stroke:#82b366;
classDef state fill:#ffe6cc,stroke:#d79b00;
Accounts
| Account | Signer | Writable | Owner |
|---|---|---|---|
| Subscription | · | ✓ | Subscriptions |
| Plan | · | · | Subscriptions |
| SA(alice, USDC mint) | · | · | Subscriptions |
| alice/ATA(USDC mint) | · | ✓ | token |
| merchant/ATA(USDC mint) | · | ✓ | token |
| merchant | ✓ | ✓ | system |
| USDC mint | · | · | token |
| token | · | · | BPFL… |
| eventAuthority | · | · | system |
| Subscriptions | · | · | BPFL… |
Call tree and logs
A puller transfers against a subscription
merchant (5973cu)
└─ Subscriptions::transferSubscription ✓ 5973cu
├─ token::transferChecked ✓ 113cu
└─ Subscriptions::emit:subscriptionTransferEvent ✓ 137cu
Program De1egAFMkMWZSN5rYXRj9CAdheBamobVNubTsi9avR44 invoke [1]
Program TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA invoke [2]
Program TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA consumed 113 of 195646 compute units
Program TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA success
Program De1egAFMkMWZSN5rYXRj9CAdheBamobVNubTsi9avR44 invoke [2]
Program De1egAFMkMWZSN5rYXRj9CAdheBamobVNubTsi9avR44 consumed 137 of 194189 compute units
Program De1egAFMkMWZSN5rYXRj9CAdheBamobVNubTsi9avR44 success
Program De1egAFMkMWZSN5rYXRj9CAdheBamobVNubTsi9avR44 consumed 5973 of 200000 compute units
Program De1egAFMkMWZSN5rYXRj9CAdheBamobVNubTsi9avR44 success
Integration
What an integrator writes: the derivations and the instruction, byte-identical to the transaction this page witnessed. Addresses are this scenario’s; supply your own.
#![allow(unused)]
fn main() {
use solana_instruction::{AccountMeta, Instruction};
use solana_pubkey::{pubkey, Pubkey};
// --- transferSubscription ---
let program_id: Pubkey = pubkey!("De1egAFMkMWZSN5rYXRj9CAdheBamobVNubTsi9avR44");
let subscription_pda: Pubkey = pubkey!("6pQDdNgFksFRPMJQFvuiMheurG16kVi12So7UutPzWjH"); // Subscription: this scenario's value; supply your own
let plan_pda: Pubkey = pubkey!("2PQuEytmHE7C2a9ynpmsRfYK7UgXNtCqSR4qnNNgeZwp"); // Plan: this scenario's value; supply your own
let subscription_authority: Pubkey = pubkey!("4RDKDQRnKtZC5ti4wunSAayArwxdZida5St595CiKJ7i"); // SA(alice, USDC mint): this scenario's value; supply your own
let delegator_ata: Pubkey = pubkey!("3fVRopUs1BsF6RqteSmcyctBCx2YQ6Zkv7prsUz95VHY"); // supply your own
let receiver_ata: Pubkey = pubkey!("3FuYuMdLiEnmSsoGZEiXUDJSpiLgeKTmNTWUQkLAZyH1"); // supply your own
let caller: Pubkey = pubkey!("4jnW4cX63scWb3VGDVaacYunDWNFsGERr3YYUKPuNxJp"); // merchant: this scenario's value; supply your own
let token_mint: Pubkey = pubkey!("HhbhtPWNt5Rd2gvrjhGCekommdNQwVLY6ZMp3aBv4xtG"); // USDC mint: this scenario's value; supply your own
let token_program: Pubkey = pubkey!("TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"); // the token program
let event_authority = Pubkey::find_program_address(&[b"event_authority"], &program_id).0;
let ix = Instruction {
program_id,
accounts: vec![
AccountMeta::new(subscription_pda, false), // subscriptionPda
AccountMeta::new_readonly(plan_pda, false), // planPda
AccountMeta::new_readonly(subscription_authority, false), // subscriptionAuthority
AccountMeta::new(delegator_ata, false), // delegatorAta
AccountMeta::new(receiver_ata, false), // receiverAta
AccountMeta::new_readonly(caller, true), // caller
AccountMeta::new_readonly(token_mint, false), // tokenMint
AccountMeta::new_readonly(token_program, false), // tokenProgram
AccountMeta::new_readonly(event_authority, false), // eventAuthority
AccountMeta::new_readonly(program_id, false), // selfProgram
],
// discriminator ++ borsh(transferData: {amount: 10000000, delegator: 2rj1…, mint: Hhbh…})
data: vec![0x0a, 0x80, 0x96, 0x98, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1b, 0x98, 0xa3, 0xfc, 0x7a, 0x9f, 0x8b, 0x5c, 0x8b, 0x0e, 0xad, 0xe0, 0x77, 0x5a, 0x59, 0x3e, 0x44, 0x99, 0xa9, 0x76, 0x55, 0x97, 0xcd, 0x1b, 0xdc, 0xae, 0x63, 0xcd, 0x00, 0xf5, 0x19, 0xbc, 0xf8, 0x21, 0x76, 0xd4, 0x30, 0xe3, 0x1b, 0x7f, 0x8d, 0xe5, 0x16, 0xa8, 0xf6, 0xa3, 0x97, 0xc4, 0x57, 0x80, 0x12, 0x98, 0x73, 0x7a, 0xb3, 0x11, 0x69, 0xc0, 0x99, 0x8f, 0x1c, 0x02, 0x2b, 0xa1],
};
}
The same call through the Codama-generated TypeScript client (the async builder derives every PDA the resolver derived here, so only the free inputs appear):
import { address } from "@solana/kit";
import { getTransferSubscriptionInstructionAsync } from "your-generated-client";
const ix = await getTransferSubscriptionInstructionAsync({
subscriptionPda: address("6pQDdNgFksFRPMJQFvuiMheurG16kVi12So7UutPzWjH"), // Subscription
planPda: address("2PQuEytmHE7C2a9ynpmsRfYK7UgXNtCqSR4qnNNgeZwp"), // Plan
subscriptionAuthority: address("4RDKDQRnKtZC5ti4wunSAayArwxdZida5St595CiKJ7i"), // SA(alice, USDC mint)
delegatorAta: address("3fVRopUs1BsF6RqteSmcyctBCx2YQ6Zkv7prsUz95VHY"),
receiverAta: address("3FuYuMdLiEnmSsoGZEiXUDJSpiLgeKTmNTWUQkLAZyH1"),
caller: callerSigner, // merchant (a TransactionSigner)
tokenMint: address("HhbhtPWNt5Rd2gvrjhGCekommdNQwVLY6ZMp3aBv4xtG"), // USDC mint
// tokenProgram defaults to the token program
transferData: {
amount: 10000000n,
delegator: address("2rj1EEgg32bupe12mMYnPFaKQCPPyYBhKYmDFZ8cXxpT") /* alice */,
mint: address("HhbhtPWNt5Rd2gvrjhGCekommdNQwVLY6ZMp3aBv4xtG") /* USDC mint */
},
});
How this page verifies itself: the test that ran it
The narrative above is this test; the page and the code cannot drift.
#![allow(unused)]
fn main() {
#[test]
fn transfer_subscription_success() {
let mut story = Story::load(SO, IDL);
let end_ts = story.now() + days(30) as i64;
let s = setup_plan_and_subscription(&mut story, 50_000_000, 1, end_ts, vec![], vec![]);
story.then_holds(
"the merchant ATA starts empty",
story.token_balance(&s.merchant_ata) == 0,
);
let outcome = pull(&mut story, &s, &s.merchant, 10_000_000, None).expect_success();
story.then_holds(
"the merchant received 10 tokens",
story.token_balance(&s.merchant_ata) == 10_000_000,
);
story.then_holds(
"the pulled-in-period is 10 tokens",
amount_pulled(&story, &s.subscription_pda) == 10_000_000,
);
emit_scenario(
&story,
&outcome,
"A puller transfers against a subscription",
);
}
}