@tango-crypto/tangocrypto-js
v1.1.3
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Javascript client for tangocrypto API
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tangocrypto-js
TypeScript/JavaScript sdk for Tangocrypto platform.
Getting started
Go to tangocrypto.com, login/register, then create an app and save your apiKey
and appId
.
Credentials
In the dashboard go to your app details and copy the value for APP Id and API Key.
Installation
This library is intended to be use on Node.js
npm i @tango-crypto/tangocrypto-js
Initialization
Using the SDK is pretty simple as you can see from the following examples. You just need to create an Tangocrypto
instance.
import { Tangocrypto, Network } from '@tango-crypto/tangocrypto-js';
// or CommonJS
// const { Tangocrypto, Network } = require('@tango-crypto/tangocrypto-js');
const client = new Tangocrypto({
apiKey: process.env.API_KEY, // your account id
appId: process.env.APP_ID, // your app id
network: Network.CARDANO_MAINNET, // Network to determine the base URL, default to https://cardano-mainnet.tangocrypto.com
version: process.env.VERSION, // API version, default to v1
maxAttempts: 5 // maximmum retry attemps when request fails and is retryable (e.g. status 429)
})
Settings Options
apiKey
: Your account Id (required).appId
: Your app Id.network
: Network to determine the base URL, default tohttps://cardano-mainnet.tangocrypto.com
version
: String for API version, default tov1
.maxAttempts
: Number indicating the maximmum retry attemps when request fails and is retryable (e.g. status 429).
For more examples take a look in examples directory.
Consume API
After you have created a Tangocrypto
instance you have different API instances to interact with the backend.
Addresses
: Get access to a set of endpoints cardano address related.Assets
: Get access to a set of endpoints cardano asset related.Blocks
: Get access to a set of endpoints cardano block related.Epochs
: Get access to a set of endpoints cardano epoch related.Policies
: Get access to a set of endpoints cardano policy related.Pools
: Get access to a set of endpoints cardano pool related.Transactions
: Get access to a set of endpoints cardano transaction related.Wallets
: Get access to a set of endpoints cardano stake address related.Webhooks
: Get access Webhooks API.Nfts
: Get access to NFT Studio API.Ipfs
: Get access to Ipfs API.
API Response
All API instances methods return an instance of TangocryptoResponse<T>
definde this way:
export interface TangocryptoResponse<T> {
result: T;
$metadata: Metadata;
}
Where T
corresponding to the data specific for each endpoint. More info about each endpoint request/response here. The field $metadata
contains the attemps
and totalRetryDelay
were needed in order to perform the request. If the request was success in the first call $metadata
will look like this:
{ attempts: 1, totalRetryDelay: 0 }
Error Handling
The errors throws by this sdk are instances of TangocryptoError
with the same structure you get from the API.
{
"status_code": 404,
"message": "epoch: 63 not found",
"error": "Not Found"
}
Check here for all possible status_code
and meaning.
TancryptoError
extends built-in Error
class, so you can catch it in your code and perform custom logic.
const api = new Tangocrypto({
apiKey: process.env.API_KEY,
appId: process.env.APP_ID,
network: Network.CARDANO_TESTNET,
version: process.env.VERSION
}).block()
// missing block number
const block = -1;
try {
const response = await api.getBlock(block);
} catch (err) {
if (err instanceof TangocryptoError) {
// missing block number
console.log(err.toString()); // TangocryptoError: {"status_code":404,"message":"block number: -1 not found","error":"Not Found"}
} else {
// other errors
throw err;
}
}
Example
Getting latest block in the blockchain
const api = client.block(); // get block API client instance
const response = await api.getLatestBlock();
console.log(response.result);
Output:
>> {
"hash": "7135250e403466c2163c6ba3aa8606f4dd6396e282c512486740aeaa220fbaf9",
"epoch_no": 229,
"slot_no": 68672434,
"epoch_slot_no": 114034,
"block_no": 3832866,
"previous_block": 3832865,
"slot_leader": "pool1l8kt8vn966ylkgysaj28ut34qu8z7nrjxyjj3n77v9ae6clyjfp",
"confirmations": 1,
"size": 4,
"time": "2022-09-13T04:00:50.000Z",
"tx_count": 0,
"vrf_key": "vrf_vk1cxcf73rmj7luakn0ykjtvsf3mzqj5akhh3j82hamch4srlvx37tsy2gg35",
"op_cert": "48a680a489fbf4d0035afec3596e42eb05c2d2d3ebfa4ca5f6210ddb74d7facc"
}
Access to IPFS
const api = new Tangocrypto({
apiKey: process.env.API_KEY,
}).ipfs()
const { result } = await api.listContents();
console.log(result.data);
Output:
>>> [{
"created_at": "2022-12-19T18:01:33.326Z",
"status": "pinned",
"account_id": "8120536a5efc478b92809f8f1987a76e",
"name": "test-tangocrypto-js",
"updated_at": "2022-12-19T18:01:33.326Z",
"content_cid": "bafybeicfu52l2qhibv6juzeks7tjjnbzv7ykqusgcjlokg3i3aecn4ttsy",
"id": "01gmnrrkce3ggjwc11t15e5zb8",
"cid": "QmT2YwTAj9T3umZ7CRFW94vRg58dWUnYCyc8s8LdXn3KWV",
"pins": [
{
"location": {
"ipfs_peer_id": "12D3KooWEfdXu9Ssk8abzxaB5fVPyY9ojFaU3EgSzzjEcEfBfFDe",
"peer_id": "12D3KooWCLuHQj5ZyvE3VRBAPazAfmAn2pz3CkK14YdvWrhuyszg",
"peer_name": "cluster0"
},
"id": "12D3KooWCLuHQj5ZyvE3VRBAPazAfmAn2pz3CkK14YdvWrhuyszg",
"status": "Pinned"
}
],
"dag_size": 244927,
"type": "Upload"
},
...
]
Please check our docs for more information about all the tangocrypto features.