Getting Started
Quick guide to getting started with Alchemy x Crypto.org development.
1. 🔑 Create an Alchemy App
2. ✍ Make a request
To use Alchemy's products, you need an API key to authenticate your requests.
You can create API keys from the dashboard. To make a new key, click on the "Create App" button circled below:
Fill in the details under "Create App" to get your new key. There are two options for networks: Mainnet and Croeseid (the API methods for both are the same).
At anytime, you can visit your dashboard homepage and view your app's keys by clicking the key icon on the far right.
NOTE: Tendermint has two forms of RPC protocols:
- 1.URI/HTTP: a REST like interface
- 2.JSONRPC/HTTP: can be POST'd to the root RPC endpoint via HTTP.
Here is an example you can run from the command line to retrieve the block at height 1:
URI
JSON-RPC
curl cro-croeseid.alchemyapi.io/your-api-key/tendermint/block?height=1
curl --header "Content-Type: application/json" --request POST --data '{"method": "block", "params": ["1"], "id": 1}' cro-croeseid.alchemyapi.io/your-api-key/tendermint
curl cro-croeseid.alchemyapi.io/your-api-key/grpc-reset/blocks/1
We've created an API key called
your-api-key so you can easily copy, paste, and test these sample requests. However, you should replace your-api-key with your actual unique API key when developing. Results:
{
"id": 0,
"jsonrpc": "2.0",
"result": {
"block_id": {
"hash": "112BC173FD838FB68EB43476816CD7B4C6661B6884A9E357B417EE957E1CF8F7",
"parts": {
"total": 1,
"hash": "38D4B26B5B725C4F13571EFE022C030390E4C33C8CF6F88EDD142EA769642DBD"
}
},
"block": {
"header": {
"version": {
"block": "10",
"app": "0"
},
"chain_id": "cosmoshub-2",
"height": "12",
"time": "2019-04-22T17:01:51.701356223Z",
"last_block_id": {
"hash": "112BC173FD838FB68EB43476816CD7B4C6661B6884A9E357B417EE957E1CF8F7",
"parts": {
"total": 1,
"hash": "38D4B26B5B725C4F13571EFE022C030390E4C33C8CF6F88EDD142EA769642DBD"
}
},
"last_commit_hash": "21B9BC845AD2CB2C4193CDD17BFC506F1EBE5A7402E84AD96E64171287A34812",
"data_hash": "970886F99E77ED0D60DA8FCE0447C2676E59F2F77302B0C4AA10E1D02F18EF73",
"validators_hash": "D658BFD100CA8025CFD3BECFE86194322731D387286FBD26E059115FD5F2BCA0",
"next_validators_hash": "D658BFD100CA8025CFD3BECFE86194322731D387286FBD26E059115FD5F2BCA0",
"consensus_hash": "0F2908883A105C793B74495EB7D6DF2EEA479ED7FC9349206A65CB0F9987A0B8",
"app_hash": "223BF64D4A01074DC523A80E76B9BBC786C791FB0A1893AC5B14866356FCFD6C",
"last_results_hash": "",
"evidence_hash": "",
"proposer_address": "D540AB022088612AC74B287D076DBFBC4A377A2E"
},
"data": [
"yQHwYl3uCkKoo2GaChRnd+THLQ2RM87nEZrE19910Z28ABIUWW/t8AtIMwcyU0sT32RcMDI9GF0aEAoFdWF0b20SBzEwMDAwMDASEwoNCgV1YXRvbRIEMzEwMRCd8gEaagom61rphyEDoJPxlcjRoNDtZ9xMdvs+lRzFaHe2dl2P5R2yVCWrsHISQKkqX5H1zXAIJuC57yw0Yb03Fwy75VRip0ZBtLiYsUqkOsPUoQZAhDNP+6LY+RUwz/nVzedkF0S29NZ32QXdGv0="
],
"evidence": [
{
"type": "string",
"height": 0,
"time": 0,
"total_voting_power": 0,
"validator": {
"pub_key": {
"type": "tendermint/PubKeyEd25519",
"value": "A6DoBUypNtUAyEHWtQ9bFjfNg8Bo9CrnkUGl6k6OHN4="
},
"voting_power": 0,
"address": "string"
}
}
],
"last_commit": {
"height": 0,
"round": 0,
"block_id": {
"hash": "112BC173FD838FB68EB43476816CD7B4C6661B6884A9E357B417EE957E1CF8F7",
"parts": {
"total": 1,
"hash": "38D4B26B5B725C4F13571EFE022C030390E4C33C8CF6F88EDD142EA769642DBD"
}
},
"signatures": [
{
"type": 2,
"height": "1262085",
"round": 0,
"block_id": {
"hash": "112BC173FD838FB68EB43476816CD7B4C6661B6884A9E357B417EE957E1CF8F7",
"parts": {
"total": 1,
"hash": "38D4B26B5B725C4F13571EFE022C030390E4C33C8CF6F88EDD142EA769642DBD"
}
},
"timestamp": "2019-08-01T11:39:38.867269833Z",
"validator_address": "000001E443FD237E4B616E2FA69DF4EE3D49A94F",
"validator_index": 0,
"signature": "DBchvucTzAUEJnGYpNvMdqLhBAHG4Px8BsOBB3J3mAFCLGeuG7uJqy+nVngKzZdPhPi8RhmE/xcw/M9DOJjEDg=="
}
]
}
}
}
}
Last modified 2yr ago