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0007-node-api-v2.md

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Table of Contents

Summary

Create a v2 JSON-RPC API for the Node API.

Motivation

The previous Node API (referred to here as v1) was a REST API. This API while simple had a few drawbacks:

  • Manually documented (current documentation is available here.
  • Contains call with heterogenous args such as ?byid=xxx and commitment/xxx which can be confusing and lack some uniformity.
  • Uses REST which is bound to HTTP while v2 wallet API uses JSON-RPC.
  • No difference between node management and simple information endpoints (i.e. exposing the node on the internet would allow anyone to query sensitive endpoints)

This RFC provides a new v2 API with:

  • Cleaner methods and errors.
  • Owner and Foreign API.
  • Generated documentation directly on docs.rs.
  • Automatic testing with doc tests.
  • Stronger basis for future improvements.

Community-level explanation

This new API will be particularly useful for wallet developer and should ultimately simplify their work on Grin. Moreover, this RFC does not introduce any breaking changes as the v1 REST API will still be around until completely deprecated.

Reference-level explanation

V1 Endpoints

While the endpoints are documented in details here, here is an overview of the REST API Endpoints of the v1 API.

[
  "get blocks",
  "get headers",
  "get chain",
  "post chain/compact",
  "get chain/validate",
  "get chain/kernels/xxx?min_height=yyy&max_height=zzz",
  "get chain/outputs/byids?id=xxx,yyy,zzz",
  "get chain/outputs/byheight?start_height=101&end_height=200",
  "get status",
  "get txhashset/roots",
  "get txhashset/lastoutputs?n=10",
  "get txhashset/lastrangeproofs",
  "get txhashset/lastkernels",
  "get txhashset/outputs?start_index=1&max=100",
  "get txhashset/merkleproof?n=1",
  "get pool",
  "post pool/push_tx",
  "post peers/a.b.c.d:p/ban",
  "post peers/a.b.c.d:p/unban",
  "get peers/all",
  "get peers/connected",
  "get peers/a.b.c.d",
  "get version"
]

These endpoints can be grouped into 5 categories:

  • miscellaneous endpoints (which contain status and version endpoints)
  • chain endpoints (which also contain blocks, chain and headers` endpoints)
  • peer endpoints
  • pool endpoints
  • txhashset endpoints

V2 Endpoints

The following endpoints are kept and refactored:

[
  "get blocks",
  "get headers",
  "get chain",
  "post chain/compact",
  "get chain/validate",
  "get chain/kernels/xxx?min_height=yyy&max_height=zzz",
  "get chain/outputs/byids?id=xxx,yyy,zzz",
  "get chain/outputs/byheight?start_height=101&end_height=200",
  "get status",
  "get txhashset/outputs?start_index=1&max=100",
  "get pool",
  "post pool/push_tx",
  "post peers/a.b.c.d:p/ban",
  "post peers/a.b.c.d:p/unban",
  "get peers/all",
  "get peers/connected",
  "get peers/a.b.c.d",
  "get version"
]

The logic of the following endpoints will NOT be implemented as they are purely internals:

  "get txhashset/roots",
  "get txhashset/lastoutputs?n=10",
  "get txhashset/lastrangeproofs",
  "get txhashset/lastkernels",
  "get txhashset/merkleproof?n=1",

The new Owner API endpoint methods are the following:

The new Foreign API endpoint methods are the following:

When running grin with defaults, the V2 apis are available at

  • localhost:3413/v2/owner for the owner API.
  • localhost:3413/v2/foreign for the foreign API.

Owner API Endpoints

get_status

Returns various information about the node, the network and the current sync status.

{
  "jsonrpc": "2.0",
  "method": "get_status",
  "params": [],
  "id": 1
}
{
"id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": {
      "protocol_version": "2",
      "user_agent": "MW/Grin 2.x.x",
      "connections": "8",
      "tip": {
        "height": 371553,
        "last_block_pushed": "00001d1623db988d7ed10c5b6319360a52f20c89b4710474145806ba0e8455ec",
        "prev_block_to_last": "0000029f51bacee81c49a27b4bc9c6c446e03183867c922890f90bb17108d89f",
        "total_difficulty": 1127628411943045
      },
      "sync_status": "header_sync",
      "sync_info": {
        "current_height": 371553,
        "highest_height": 0
      }
    }
  }
}
validate_chain

Trigger a validation of the chain state.

{
    "jsonrpc": "2.0",
    "method": "validate_chain",
    "params": [],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": null
  }
}
compact_chain

Trigger a compaction of the chain state to regain storage space.

{
    "jsonrpc": "2.0",
    "method": "compact_chain",
    "params": [],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": null
  }
}
get_peers

Retrieves information about peers. If null is provided, get_peers will list all stored peers.

{
    "jsonrpc": "2.0",
    "method": "get_peers",
    "params": ["70.50.33.130:3414"],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": [
      {
        "addr": "70.50.33.130:3414",
        "ban_reason": "None",
        "capabilities": {
          "bits": 15
        },
        "flags": "Defunct",
        "last_banned": 0,
        "last_connected": 1570129317,
        "user_agent": "MW/Grin 2.0.0"
      }
    ]
  }
}
get_connected_peers

Retrieves a list of all connected peers.

{
    "jsonrpc": "2.0",
    "method": "get_connected_peers",
    "params": [],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": [
      {
        "addr": "35.176.195.242:3414",
        "capabilities": {
          "bits": 15
        },
        "direction": "Outbound",
        "height": 374510,
        "total_difficulty": 1133954621205750,
        "user_agent": "MW/Grin 2.0.0",
        "version": 1
      },
      {
        "addr": "47.97.198.21:3414",
        "capabilities": {
          "bits": 15
        },
        "direction": "Outbound",
        "height": 374510,
        "total_difficulty": 1133954621205750,
        "user_agent": "MW/Grin 2.0.0",
        "version": 1
      },
      {
        "addr": "148.251.16.13:3414",
        "capabilities": {
          "bits": 15
        },
        "direction": "Outbound",
        "height": 374510,
        "total_difficulty": 1133954621205750,
        "user_agent": "MW/Grin 2.0.0",
        "version": 1
      },
      {
        "addr": "68.195.18.155:3414",
        "capabilities": {
          "bits": 15
        },
        "direction": "Outbound",
        "height": 374510,
        "total_difficulty": 1133954621205750,
        "user_agent": "MW/Grin 2.0.0",
        "version": 1
      },
      {
        "addr": "52.53.221.15:3414",
        "capabilities": {
          "bits": 15
        },
        "direction": "Outbound",
        "height": 0,
        "total_difficulty": 1133954621205750,
        "user_agent": "MW/Grin 2.0.0",
        "version": 1
      },
      {
        "addr": "109.74.202.16:3414",
        "capabilities": {
          "bits": 15
        },
        "direction": "Outbound",
        "height": 374510,
        "total_difficulty": 1133954621205750,
        "user_agent": "MW/Grin 2.0.0",
        "version": 1
      },
      {
        "addr": "121.43.183.180:3414",
        "capabilities": {
          "bits": 15
        },
        "direction": "Outbound",
        "height": 374510,
        "total_difficulty": 1133954621205750,
        "user_agent": "MW/Grin 2.0.0",
        "version": 1
      },
      {
        "addr": "35.157.247.209:23414",
        "capabilities": {
          "bits": 15
        },
        "direction": "Outbound",
        "height": 374510,
        "total_difficulty": 1133954621205750,
        "user_agent": "MW/Grin 2.0.0",
        "version": 1
      }
    ]
  }
}
ban_peer

Bans a specific peer.

{
    "jsonrpc": "2.0",
    "method": "ban_peer",
    "params": ["70.50.33.130:3414"],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": null
  }
}
unban_peer

Unbans a specific peer.

{
    "jsonrpc": "2.0",
    "method": "unban_peer",
    "params": ["70.50.33.130:3414"],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": null
  }
}

Foreign API Endpoints

get_version

Returns the node version and block header version (used by grin-wallet).

{
  "jsonrpc": "2.0",
  "method": "get_version",
  "params": [],
  "id": 1
}
{
"id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": {
      "node_version": "2.1.0-beta.2",
      "block_header_version": 2
    }
  }
}
get_header

Gets block header given either a height, a hash or an unspent output commitment. Only one parameter is required. If multiple parameters are provided only the first one in the list is used.

{
    "jsonrpc": "2.0",
    "method": "get_header",
    "params": [null, "00000100c54dcb7a9cbb03aaf55da511aca2c98b801ffd45046b3991e4f697f9", null],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": {
      "cuckoo_solution": [
        9886309,
        35936712,
        43170402,
        48069549,
        70022151,
        97464262,
        107044653,
        108342481,
        118947913,
        130828808,
        144192311,
        149269998,
        179888206,
        180736988,
        207416734,
        227431174,
        238941623,
        245603454,
        261819503,
        280895459,
        284655965,
        293675096,
        297070583,
        299129598,
        302141405,
        313482158,
        321703003,
        351704938,
        376529742,
        381955038,
        383597880,
        408364901,
        423241240,
        436882285,
        442043438,
        446377997,
        470779425,
        473427731,
        477149621,
        483204863,
        496335498,
        534567776
      ],
      "edge_bits": 29,
      "hash": "00000100c54dcb7a9cbb03aaf55da511aca2c98b801ffd45046b3991e4f697f9",
      "height": 374336,
      "kernel_root": "d294e6017b9905b288dc62f6f725c864665391c41da20a18a371e3492c448b88",
      "nonce": 4715085839955132421,
      "output_root": "12464313f7cd758a7761f65b2837e9b9af62ad4060c97180555bfc7e7e5808fa",
      "prev_root": "e22090fefaece85df1441e62179af097458e2bdcf600f8629b977470db1b6db1",
      "previous": "0000015957d92c9e04c6f3aec8c5b9976f3d25f52ff459c630a01a643af4a88c",
      "range_proof_root": "4fd9a9189e0965aa9cdeb9cf7873ecd9e6586eac1dd9ca3915bc50824a253b02",
      "secondary_scaling": 561,
      "timestamp": "2019-10-03T16:08:11+00:00",
      "total_difficulty": 1133587428693359,
      "total_kernel_offset": "0320b6f8a4a4180ed79ecd67c8059c1d7bd74afe144d225395857386e5822314",
      "version": 2
    }
  }
}
get_block

Gets block details given either a height, a hash or an unspent output commitment. Only one parameter is required. If multiple parameters are provided only the first one in the list is used.

{
    "jsonrpc": "2.0",
    "method": "get_block",
    "params": [374274, null, null],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": {
      "header": {
        "cuckoo_solution": [
          1263501,
          14648727,
          42430559,
          58137254,
          68666726,
          72784903,
          101936839,
          104273571,
          123886748,
          131179768,
          155443226,
          162493783,
          164784425,
          167313215,
          169806918,
          183041591,
          184403611,
          210351649,
          215159650,
          239995384,
          240935454,
          257742462,
          280820644,
          300143903,
          303146496,
          311804841,
          341039986,
          354918290,
          363508555,
          377618528,
          396693709,
          397417856,
          399875872,
          413238540,
          413767813,
          432697194,
          436903767,
          447257325,
          453337210,
          459401597,
          496068509,
          511300624
        ],
        "edge_bits": 29,
        "hash": "000001e16cb374e38c979c353a0aaffbf5b939da7688f69ad99efda6c112ea9b",
        "height": 374274,
        "kernel_root": "e17920c0e456a6feebf19e24a46f510a85f21cb60e81012f843c00fe2c4cad6e",
        "nonce": 4354431877761457166,
        "output_root": "1e9daee31b80c6b83573eacfd3048a4af57c614bd36f9acd5fb50fbd236beb16",
        "prev_root": "9827b8ffab942e264b6ac81f2b487e3de65e411145c514092ce783df9344fa8a",
        "previous": "00001266a73ba6a8032ef8b4d4f5508407ffb1c270c105dac06f4669c17af020",
        "range_proof_root": "3491b8c46a3919df637a636ca72824377f89c4967dcfe4857379a4a82b510069",
        "secondary_scaling": 571,
        "timestamp": "2019-10-03T15:15:35+00:00",
        "total_difficulty": 1133438031814173,
        "total_kernel_offset": "63315ca0be65c9f6ddf2d3306876caf9f458a01d1a0bf50cc4d3c9b699161958",
        "version": 2
      },
      "inputs": [],
      "kernels": [
        {
          "excess": "08761e9cb1eea5bfcf771d1218b5ec802798d6eecaf75faae50ba3a1997aaef009",
          "excess_sig": "971317046c533d21dff3e449cc9380c2be10b0274f70e009aa2453f755239e3299883c09a1785b15a141d89d563cdd59395886c7d63aba9c2b6438575555e2c4",
          "features": "Coinbase",
          "fee": 0,
          "lock_height": 0
        }
      ],
      "outputs": [
        {
          "block_height": 374274,
          "commit": "09d33615563ba2d65acc2b295a024337166b9f520122d49730c73e8bfb43017610",
          "merkle_proof": "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",
          "mmr_index": 4091742,
          "output_type": "Coinbase",
          "proof": "7adae7bcecf735c70eaa21e8fdce1d3c83d7b593f082fc29e16ff2c64ee5aaa15b682e5583257cf351de457dda8f877f4d8c1492af3aaf25cf5f496fce7ca54a0ef78cc61c4252c490386f3c69132960e9edc811add6415a6026d53d604414a5f4dd330a63fcbb005ba908a45b2fb1950a9529f793405832e57c89a36d3920715bc2d43db16a718ecd19aeb23428b5d3eeb89d73c28272a7f2b39b8923e777d8eb2c5ce9872353ba026dc79fdb093a6538868b4d184215afc29a9f90548f9c32aa663f9197fea1cadbb28d40d35ed79947b4b2b722e30e877a15aa2ecf95896faad173af2e2795b36ce342dfdacf13a2f4f273ab9927371f52913367d1d58246a0c35c8f0d2330fcddb9eec34c277b1cfdaf7639eec2095930b2adef17e0eb94f32e071bf1c607d2ef1757d66647477335188e5afc058c07fe0440a67804fbdd5d35d850391ead3e9c8a3136ae1c42a33d5b01fb2c6ec84a465df3f74358cbc28542036ae4ef3e63046fbd2bce6b12f829ed193fb51ea87790e88f1ea686d943c46714b076fb8c6be7c577bca5b2792e63d5f7b8f6018730b6f9ddaf5758a5fa6a3859d68b317ad4383719211e78f2ca832fd34c6a222a8488e40519179209ad1979f3095b7b7ba7f57e81c371989a4ace465149b0fe576d89473bc596c54cee663fbf78196e7eb31e4d56604c5226e9242a68bda95e1b45473c52f63fe865901839e82079a9935e25fe8d44e339484ba0a62d20857c6b3f15ab5c56b59c7523b63f86fa8977e3f4c35dc8b1c446c48a28947f9d9bd9992763404bcba95f94b45d643f07bb7c352bfad30809c741938b103a44218696206ca1e18f0b10b222d8685cc1ed89d5fdb0c7258b66486e35c0fd560a678864fd64c642b2b689a0c46d1be6b402265b7808cd61a95c2b4a4df280e3f0ec090197fb039d32538d05d3f0a082f5",
          "proof_hash": "cfd97db403c274220bb0dbaf3ecc88e483c0b707d8e6f16dfda37cd4f2c3211c",
          "spent": false
        }
      ]
    }
  }
}
get_tip

Returns details about the state of the current fork tip.

{
    "jsonrpc": "2.0",
    "method": "get_tip",
    "params": [],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": {
      "height": 374350,
      "last_block_pushed": "000000543c69a0306b5463b92939643442a44a6d9be5bef72bea9fc1d718d310",
      "prev_block_to_last": "000001237c6bac162f1add2b122fab6a254b9fcc2c4b4c8c632a8c39855521f1",
      "total_difficulty": 1133621604919005
    }
  }
}
get_kernel

Returns a LocatedTxKernel based on the kernel excess. The min_height and max_height parameters are both optional. If not supplied, min_height will be set to 0 and max_height will be set to the head of the chain. The method will start at the block height max_height and traverse the kernel MMR backwards, until either the kernel is found or min_height is reached.

{
    "jsonrpc": "2.0",
    "method": "get_kernel",
    "params": ["09c868a2fed619580f296e91d2819b6b3ae61ab734bf3d9c3eafa6d9700f00361b", null, null],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": {
      "height": 374557,
      "mmr_index": 2211662,
      "tx_kernel": {
        "excess": "09c868a2fed619580f296e91d2819b6b3ae61ab734bf3d9c3eafa6d9700f00361b",
        "excess_sig": "1720ec1b94aa5d6ba4d567f7446314f9a6d064eea69c5675cc5659f65f290d80b0e9e3a48d818cadba0a4e894bbc6eb6754b56f53813e2ee0b1447969894ca4a",
        "features": "Coinbase"
      }
    }
  }
}
get_outputs

Retrieves details about specifics outputs. Supports retrieval of multiple outputs in a single request. Support retrieval by both commitment string and block height. Last field are for whether or not the response will include rangeproof and merkle proof.

{
    "jsonrpc": "2.0",
    "method": "get_outputs",
    "params": ["09bab2bdba2e6aed690b5eda11accc13c06723ca5965bb460c5f2383655989af3f","08ecd94ae293863286e99d37f4685f07369bc084ba74d5c59c7f15359a75c84c03"],376150, 376154, true, true],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": [
      {
        "block_height": 374568,
        "commit": "09bab2bdba2e6aed690b5eda11accc13c06723ca5965bb460c5f2383655989af3f",
        "merkle_proof": null,
        "mmr_index": 4093403,
        "output_type": "Transaction",
        "proof": "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",
        "proof_hash": "660d706330fc36f611c50d90cb965fddf750cc91f8891a58b5e39b83a5fc6b46",
        "spent": false
      },
      {
        "block_height": 376151,
        "commit": "08ecd94ae293863286e99d37f4685f07369bc084ba74d5c59c7f15359a75c84c03",
        "merkle_proof": "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",
        "mmr_index": 4107711,
        "output_type": "Coinbase",
        "proof": "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",
        "proof_hash": "7cf77fdaecef6c6fc01edca744c1521581f854a9bac0153971edbb1618fc36ad",
        "spent": false
      },
      {
        "block_height": 376154,
        "commit": "095c12db5e57e4a1ead0870219bda4ebfb1419f6ab1501386b9dd8dc9811a8c5ff",
        "merkle_proof": "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",
        "mmr_index": 4107717,
        "output_type": "Coinbase",
        "proof": "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",
        "proof_hash": "5dd69c083e2c0fd797a499bbafedee0728849afa3476034280ecadf6eb4bffc2",
        "spent": false
      },
      {
        "block_height": 376153,
        "commit": "0948cb346b7affe004a6f84fa4b5b44995830f1c332b03537df4c258d51d1afb50",
        "merkle_proof": "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",
        "mmr_index": 4107716,
        "output_type": "Coinbase",
        "proof": "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",
        "proof_hash": "0ce421970d13fe9b3981e308c5d0b549982cdda9f69918289cd95ffcd09e0fc2",
        "spent": false
      }
    ]
  }
}
get_unspent_outputs

UTXO traversal. Retrieves last utxos since a start index until a max. Last boolean is optional to whether or not return the rangeproof.

{
    "jsonrpc": "2.0",
    "method": "get_unspent_outputs",
    "params": [1, 2, true],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": {
      "highest_index": 2078061,
      "last_retrieved_index": 30,
      "outputs": [
        {
          "block_height": 1,
          "commit": "08b7e57c448db5ef25aa119dde2312c64d7ff1b890c416c6dda5ec73cbfed2edea",
          "merkle_proof": null,
          "mmr_index": 1,
          "output_type": "Coinbase",
          "proof": "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",
          "proof_hash": "6c301688d9186c3a99444f827bdfe3b858fe87fc314737a4dc1155d9884491d2",
          "spent": false
        },
        {
          "block_height": 29,
          "commit": "09bab1ddad0f6fec1aedcd3830c5c647515ad543929e722344e4a8d390b6fdd51b",
          "merkle_proof": null,
          "mmr_index": 55,
          "output_type": "Coinbase",
          "proof": "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",
          "proof_hash": "a64ed774d824dc55123c6c5ba46d84bac15b6ead8cb60200836c2a0e74506ab0",
          "spent": false
        }
      ]
    }
  }
}
get_pmmr_indices

Retrieves the PMMR indices based on the provided block height(s).

{
    "jsonrpc": "2.0",
    "method": "get_pmmr_indices",
    "params": [1, 200],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": {
      "highest_index": 398,
      "last_retrieved_index": 2,
      "outputs": []
    }
  }
}
get_pool_size

Returns the number of transactions in the transaction pool.

{
    "jsonrpc": "2.0",
    "method": "get_pool_size",
    "params": [],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": 1
  }
}
get_stempool_size

Returns the number of transactions in the stem transaction pool.

{
    "jsonrpc": "2.0",
    "method": "get_stempool_size",
    "params": [],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": 0
  }
}
get_unconfirmed_transactions

Returns the unconfirmed transactions in the transaction pool. Will not return transactions in the stempool.

{
    "jsonrpc": "2.0",
    "method": "get_unconfirmed_transactions",
    "params": [],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": [
      {
        "src": "Broadcast",
        "tx": {
          "body": {
            "inputs": [
              {
                "commit": "0992ce1827ec349e9f339ce183ffd01db39bf43999799d8191bfc267a58f0a715c",
                "features": "Coinbase"
              },
              {
                "commit": "0943a3c4ee4a22a5b086c26f8e6dc534204dafde0cf4c07e0c468d224dd79127ec",
                "features": "Plain"
              }
            ],
            "kernels": [
              {
                "excess": "083c49eaaf6380d44596f52cce4cf278cfac6dd34fbef73981002d8f1e8ee8abe4",
                "excess_sig": "3f011e7e288231d67f42cb4f6416c4720e6170d5e3c805a52d33aa4521328f9be0303be654bc8ddcd3111aadc27c848b9cf07e0a70885ef79be70b7bb70f8c75",
                "features": {
                  "Plain": {
                    "fee": 7000000
                  }
                }
              }
            ],
            "outputs": [
              {
                "commit": "0873fafd4a0e4f365939e24c68eeb18aafc6674ca244a364dcdbfa8fa525e7bae1",
                "features": "Plain",
                "proof": "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"
              },
              {
                "commit": "08de9e42d361cabd99e566c67f7f8599c7e6985cd285a841277f1aeb89ad6c8fe3",
                "features": "Plain",
                "proof": "5eb7afa00e9681e3b6425fb4256c96905303505787d6a065e88a50154410b9a371b0f879d3f97cfa00425e9c8266e180188656acdbb46cacfdfb159fb135c5eb03b08be3c231c4b21df777da2e2afe8d30db91e602dc4ceed71aeb1b45a0266cfeadc4acbf9fdf7a67f67408fbbea7bf14182bc407373d243c6875373b655695604deb575369a9b28274885601b338882219c7f508aa2a0ae1d02736af2249327145f1d3d00093f9587f0e0b408692700fac0f2a048c329e81cabaa4b997dd88923fe97420125f394e21b4835e36cce9de383d9e223df1b5a6ba6f48ffeac315991189dc2716cc7ec07f6ccc8062344d5ed4fcaddf9070f44f0c59ffe8160d1f6fdfe42b40066f51e687d38b6b5255771800ac060bd8034cd68d14eee1b2f43b6d7bf20d71549ea9a50006dd30b9a795e785385801546eb9a83721a09fc34d3b69d4ccdc0ff0fb74d224048aeb66ecff5515296cadd57f42e0717cbba7c70719a10c007db4520e868efe98a51001b67952d7bda3174195a3d76b93ee4dac60137a38b2e8309cad13ef1cfb6c467f1969385e5b334b52f4fd55da440e036d2a428e9f3be905d79f717c169060468acc6d469636fed098b1aba5cd055a120314bcab55d5b8b6889321edf373517e93ef67fbe74557ec6c0211265efefa25a34ac267cf1db891c47163bfed20d2b535abfe60390c2844dcef5f0aad5fa7f1db9f726d7f223c025861069603936a22377707cdd3915e762e7061132124c716212b0e91bb7fc5d7816366f5d169d93fe75669a6ba19057bb2450958aa6f5ada09042570f46215af5a41b623d140be574b7a8c9ab24ea48da416dbe6ec0fa3b889206fb804df8d69805ceb80f1e9d4e8b664b3939491cba946d87585c830e3dab0638fa279b5e911642f18452e2731764aa62f92bbcf194c97f344c90c1931fd2c3af4bcf6b0"
              }
            ]
          },
          "offset": "0eb2c2669ce918675c72697891e5527bd13da5a499396381409219b8bbbd8129"
        },
        "tx_at": "2019-10-07T16:20:08.709114Z"
      }
    ]
  }
}
push_transaction

Push new transaction to our local transaction pool. Optional fluff boolean to bypass Dandelion relay (false by default).

{
    "jsonrpc": "2.0",
    "method": "push_transaction",
    "params": [ {
      "body": {
            "inputs": [
              {
                "commit": "0904cbd34d0745eb00ffc3e95c9f4746738794d00268e243e9b57163a73b384102",
                "features": "Coinbase"
              }
            ],
            "kernels": [
              {
                "excess": "08385257d22f1b8a758903f78ae12545245d620cffc50e7ee7bc852c5815513dc7",
                "excess_sig": "e001a7349fd40d4a9dfc1df275d30906fb3b304f8c7892a20ed5c9b10923c871cbabedcf322511a9ce56f10113b48855441f681280133e121b25ea1ff7efad9e",
                "features": {
                  "Plain": {
                    "fee": 8000000
                  }
                }
              }
            ],
            "outputs": [
              {
                "commit": "087c3ca7419751e96cdae4908bb8a92fc2826f2ad36690420b905d51beb7409ca0",
                "features": "Plain",
                "proof": "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"
              },
              {
                "commit": "09a7b2c1d4b346c4ebe9c6c979e32e7740446624d5439d9d7abb82166c2545e5be",
                "features": "Plain",
                "proof": "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"
              }
            ]
          },
          "offset": "0ec14d3875ad5a366418256fe65bad2a4d4ff1914e1b9488db72dd355138ca3a"
        },
        true
    ],
    "id": 1
}
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "Ok": null
  }
}

Errors

There is two kind of errors that can appear when making a call on the API v2: basic JSON-RPC errors and API result errors

JSON-RPC Errors

These errors are often due to a miscontructed JSON body. For example when there is not enough parameters:

{
  "error": {
    "code": -32602,
    "message": "WrongNumberOfArgs. Expected 4. Actual 5"
  },
  "id": 1,
  "jsonrpc": "2.0"
}

or invalid type of data entered:

{
  "error": {
    "code": -32602,
    "message": "InvalidArgStructure \"start_height\" at position 1."
  },
  "id": 1,
  "jsonrpc": "2.0"
}

or method not found:

{
  "error": {
    "code": -32601,
    "message": "Method not found"
  },
  "id": 2,
  "jsonrpc": "2.0"
}

this list of errors is not exhaustive, for more information about the possible error objects see the JSON RPC 2.0 specifications.

API Result Errors

These type of errors are due to an API error during the query. This type of error is wrapped into the result. The possible error objects are defined in the grin_api crate

For example, trying to ban a peer that's already banned:

{
  "id": 2,
  "jsonrpc": "2.0",
  "result": {
    "Err": {
      "Internal": "ban peer error: PeerNotFound"
    }
  }
}

or a block that doesn't exist:

{
  "id": 2,
  "jsonrpc": "2.0",
  "result": {
    "Err": "NotFound"
  }
}

Authentication

Like the v1 API, the v2 API uses basic auth. However, the foreign and owner API do not share the same secret.

  • The Owner API use the same token as the V1 Rest API, usually defined in .grin/main/.api_secret.
  • The Foreign API use its own token, usually defined in .grin/main/.foreign_api_secret.

Wallet support

For full compatibility, grin-wallet will migrate to use the v2 Node API.

Legacy support

The v1 API will remain active for a time the mode of operation for its REST API will be assumed to work as currently. This setup should allow existing wallets and apps to continue working as-is until a cutoff release for legacy mode is determined.

API only

Note that this RFC doe not make user-facing changes to the existing CLI (invoked by grin client) to invoke these functions. It's expected that the existing cli functionality will be modified to invoke the new API functions.

Node V1 Deprecation Timeline

  • v3.0.0 (January 2020): Node API v1 is marked as deprecated and will be remove in next major version.
  • v4.0.0 (July 2020): Node API v1 is removed from the code.

Drawbacks

This RFC temporarily introduces some additional code complexity as v1 and v2 node API will need to coexist for the duration of the deprecation period of v1.

Prior art

This kind of JSON-RPC API is widely used for cryptocurrencies. For instance:

Future possibilities

This API simplifies the deployment of new methods and drastically simplifies the work of developers by providing a clear documentation directly on docs.rs.

References