Cardano Webhooks — Listen to on-chain events in real-time using Tangocrypto Notify.

NOTIFY (WEBHOOKS)

  • Payments and transactions: Allow sending notifications to users to know when their deposits, purchases, in-game actions or other on-chain activity has officially occurred.
  • Address Activity Webhooks: Let your users know when transaction activity occurs on their address. No more refreshing the page or having to use the dust to identify a payment.
  • Smart Retries: Sometimes receiving endpoints fail or hang more often than you think. That’s why we provide automatic retries to ensure deliverability.
  • Monitoring and debug: We log every triggered webhook so you can monitor their deliverability to different endpoints, disable failing ones and notify your customers.
  • Development experience: Offer your users a great developer experience, including the ability to test and inspect their webhooks.

What are Webhooks?

Event standard structure

{
"id": "2921e3df-c671-4d20-b51b-d176d5c1e43g", //** Unique uuid per event .**
"api_version": "1.0", //**Represents the current Tangocrypto API version, which is v1.**
"webhook_id": "d012a60eccb54c2ba97484f98137be56", // identifies the webhook
"idempotency_key": "3b3359d0ccdb1d3d3ca8dbaa79cb5395b33c5bc52d782f3ea22904abef45d1j4", //**Specifies a unique ID used by Tangocrypto to recognize consecutive requests with the same data so that not to perform the same operation twice.**
"object": "event",
"create_date": 1633954086377,
"type": "payment", // event type
...
}

Types of Webhooks

  • Payments
  • Block
  • Transaction
  • Epoch
  • Delegation

1. Payment

{
"id": "3c23ff25-481c-4e3e-859b-f515135a49b0",
"data": {
"transaction": {
"id": "3776000",
"fee": "168317",
"hash": "e29b4f5e2650560ac61dfa3ccf311e020782d8ccdf295dbbf1cfe2e65583d417",
"size": 289,
"block": {
"id": "3372157",
"fees": "2104143",
"hash": "7fac4956202395c06028b442faba4f3fda68490e2eb7373bd9d0b7b212ff9e1f",
"pool": {
"url": "https://my-ip.at/atada.testnet-metadata-2.json",
"hash": "b4fba3c5a430634f2e5e7007b33be02562efbcd036c0cf3dbb9d9dbdf418ef27",
"name": "ATADA TestnetPool Austria",
"ticker": "ATADA",
"pool_id": "pool18yslg3q320jex6gsmetukxvzm7a20qd90wsll9anlkrfua38flr",
"homepage": "https://stakepool.at",
"description": "Testnet-Environment Pool ..."
},
"size": 6561,
"time": "Thu Feb 24 2022 12:52:38 GMT+0000 (Coordinated Universal Time)",
"op_cert": "f9096c23c3a3d8afd8d05467fed2bc75405cdbc27ba2106b55a585e414d26573",
"out_sum": "9793211682245",
"slot_no": 51337942,
"vrf_key": "vrf_vk1sleujze3zraykllkafvrxggcmpts3hp6zxrpazdkdzp9g07kkehsnmy8ka",
"block_no": 3345852,
"epoch_no": 189,
"tx_count": "11",
"next_block": null,
"slot_leader": "pool18yslg3q320jex6gsmetukxvzm7a20qd90wsll9anlkrfua38flr",
"confirmations": 1,
"epoch_slot_no": 59542,
"previous_block": 3345851
},
"deposit": "0",
"out_sum": "948312856",
"block_id": "3372157",
"block_index": 2,
"script_size": 0,
"invalid_before": null,
"valid_contract": true,
"invalid_hereafter": "51359405"
},
"from": [{
"address": "addr_test1qqvelqlqk94qm9syd40mpqkvdvk0z8ka8mt7e2sfcrq07rmazcna98r9s350vpnyghfsuqk2y29yq88tdcvwm8j0p5dqsg32es",
"hash": "d6ef469d198fbf62a5b9860ba9295b9c9fddb80078e975ba032653f66b070b51",
"index": 1,
"value": "948481173",
"smart_contract": false,
"assets": []
}],
"to": [{
"address": "addr_test1qz5xdujk7unjmyrvqazy7l4w9dzxxfgt48ppv9tsjwywrzckyjqzaxt9rkqxc62m7tcdfylykzzjktqzlwssxfl3mlyqafvh99",
"hash": "e29b4f5e2650560ac61dfa3ccf311e020782d8ccdf295dbbf1cfe2e65583d417",
"index": 0,
"value": "2564320",
"smart_contract": false,
"assets": []
},
{
"address": "addr_test1qqvelqlqk94qm9syd40mpqkvdvk0z8ka8mt7e2sfcrq07rmazcna98r9s350vpnyghfsuqk2y29yq88tdcvwm8j0p5dqsg32es",
"hash": "e29b4f5e2650560ac61dfa3ccf311e020782d8ccdf295dbbf1cfe2e65583d417",
"index": 1,
"value": "945748536",
"smart_contract": false,
"assets": []
}
]
},
"type": "payment",
"object": "event",
"webhook_id": "532ce2beb2aa42738e1cc9c5f708168c",
"api_version": "1.0",
"create_date": 1645707159923,
"idempotency_key": "755a42b339274829aefd153285084132532ce2beb2aa42738e1cc9c5f708168c",
"network": "testnet"
}

2. Block

{
"id": "7b7c0d8a-8885-46d6-8e05-0d0802d95473",
"data": {
"id": "6864165",
"fees": "17182282",
"hash": "641aa7bcd185e036d6a379d4908639d436a540158d1db6debd0e2c3b2fa7c8cd",
"pool": {
"url": "https://ccwallet.io/ccw.metadata.210713.json",
"hash": "924ec324a9d2d172cd3fe44fbbb526e5c6bea677fb7276f07387c847dfe9026d",
"name": "TITANstaking #2",
"ticker": "TITAN",
"pool_id": "pool19pyfv4xnln8x4l7auw0n0skk3hd97shun707hrw5d4s553ys74x",
"homepage": "https://www.titanstaking.io",
"description": "For a TITAN strong Cardano network. Based in Germany. 💪 Join us! Telegram: https://t.me/titanstakingio - Twitter: https://twitter.com/titanstaking"
},
"size": 58970,
"time": "Fri Feb 04 2022 11:45:09 GMT+0000 (Coordinated Universal Time)",
"op_cert": "400345da097b2eb0194b4a76f87b6853b07e8b96b5de30b671b0e83c54530cd3",
"out_sum": "10738455237",
"slot_no": 52408818,
"vrf_key": "vrf_vk19kgvazgrvr9gstsk2qn0vz0hc9x8yn3lqdymzgztm92qk6r4q9asksen0h",
"block_no": 6840368,
"epoch_no": 318,
"tx_count": "37",
"next_block": null,
"slot_leader": "pool19pyfv4xnln8x4l7auw0n0skk3hd97shun707hrw5d4s553ys74x",
"confirmations": 1,
"epoch_slot_no": 396018,
"previous_block": 6840367
},
"type": "block",
"object": "event",
"webhook_id": "98c7051ff06b4651949466655ef974fe",
"api_version": "1.0",
"create_date": 1643975112334,
"idempotency_key": "53a957187a4a4dd888b6839ea2d4452298c7051ff06b4651949466655ef974fe",
"network": "mainnet"
}

3. Transaction

{
"id": "123c4446-7a4f-4e8b-8baf-3c1437101859",
"data": {
"id": "3344667",
"fee": "305781",
"hash": "057585b42409a71c34d664e945acb92f30f09f966c5d18f098881c2dbf909d6f",
"size": 2825,
"block": {
"id": "3275904",
"fees": "1582516",
"hash": "00fd351c00be3f1775361de12576d51ee582157e330d1ebe596498295a46d02e",
"pool": {
"url": null,
"hash": null,
"raw_id": "7679567d0559ed3df7cb54a848b9568b04d1976b9926d54ae9efdd3f",
"pool_id": "pool1weu4vlg9t8knma7t2j5y3w2k3vzdr9mtnynd2jhfalwn76nwh48"
},
"size": 6980,
"time": "Wed Jan 19 2022 23:11:35 GMT+0000 (Coordinated Universal Time)",
"op_cert": "60ffa1e3c1ab6d03a5447d2f40ab023dbce45b13f0e372d63a964d31c7ee6079",
"out_sum": "18474206426",
"slot_no": 48264679,
"vrf_key": "vrf_vk1mzhz5k03lahvx0gdlqtplkyasgzn8w2cpf8y8a8f76nzskptzzhqdqyyq3",
"block_no": 3251329,
"epoch_no": 182,
"tx_count": "8",
"next_block": null,
"slot_leader": "pool1weu4vlg9t8knma7t2j5y3w2k3vzdr9mtnynd2jhfalwn76nwh48",
"confirmations": 1,
"epoch_slot_no": 10279,
"previous_block": 3251328
},
"deposit": "0",
"out_sum": "1591350310",
"block_id": "3275904",
"block_index": 1,
"script_size": 2014,
"invalid_before": "48264456",
"valid_contract": true,
"invalid_hereafter": "48278855"
},
"type": "transaction",
"object": "event",
"webhook_id": "5ef8985b5ee74b4388f324293df17173",
"api_version": "1.0",
"create_date": 1642633895460,
"idempotency_key": "5wIH/+H/cOj3K+gv3zOek89bEbIXDgxz5ef8985b5ee74b4388f324293df17173"
}

4. Epoch

{
"no": 178,
"start_time": "2022-01-04T20:20:24.000Z"
}

5. Delegation

{
"id": "d0cf3218-761f-4ca1-900b-7750fb66fb59",
"data": {
"id": 97463,
"pool": {
"url": "https://apex.nextvm.net/test/testpoolMetadata.json",
"hash": "f5ac677b58443ed2c9c9d53aa56652e71a132679e67ed9068f0227867172faf4",
"name": "ApexTestPool",
"raw_id": "5f5ed4eb2ba354ab2ad7c8859f3dacf93564637a105e80c8d8a7dc3c",
"ticker": "APEXT",
"pool_id": "pool1ta0df6et5d22k2khezze70dvly6kgcm6zp0gpjxc5lwrce0seyq",
"homepage": "https://cardano-apexpool.github.io/test/",
"description": "Apex Cardano Test Pool"
},
"tx_id": 3340342,
"addr_id": 402710,
"slot_no": 48240615,
"redeemer_id": null,
"pool_hash_id": 1030,
"active_epoch_no": 183
},
"type": "delegation",
"object": "event",
"webhook_id": "7c827ccd2d524eb5aadf1e5a391077aa",
"api_version": "1.0",
"create_date": 1642609833343,
"idempotency_key": "p90C0LTvk1XX1Ha8+JDPzzFfybhxJYYt7c827ccd2d524eb5aadf1e5a391077aa"
}

Trigger Rules

curl --location --request POST 'https://cardano-testnet.tangocrypto.com/<app-id>/v1/webhooks' \
--header 'content-type: application/json' \
--header 'x-api-key: <x-api-key>' \
--data-raw '{
"type": "payment",
"name": "Payment webhook",
"network": "testnet",
"description": "Notify on payment with more than 5 RBERRY",
"callback_url": "https://webhook.site/74e4201b-d651-4971-8b74-ebd6b10fd967",
"address": "addr_test1qqqv50804vhe30n25awp6f8mhy9z3rrysva2mj4c9geaqyjr5gtdwq4yajng57kje93tt3fkc5k8cvvem7vl8yql2mcsxcstnx",
"rules": [
{
"field": "asset_name",
"operator": "=",
"value": "RBERRY"
},
{
"field": "quantity",
"operator": ">",
"value": "5"
}
]
}'

MORE INFO

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