Regen Ledger Documentation

# Client

# CLI

A user can query and interact with the data module using the CLI.

# Query

The query commands allow users to query data state.

For examples on how to query state using CLI, see the data module Query commands (opens new window) documentation.

# Transactions

The tx commands allow users to interact with the data module.

For examples on how to submit transactions using CLI, see the data module Transaction commands (opens new window) documentation.

# gRPC

A user can query the data module using gRPC endpoints.

# AnchorByIRI

The AnchorByIRI endpoint allows users to query a data anchor by the IRI of the data.

regen.data.v1.Query/AnchorByIRI

Example:

grpcurl -plaintext \
    -d '{"iri":"regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf"}' \
    localhost:9090 \
    regen.data.v1.Query/AnchorByIRI

Example Output:

{
  "anchor": {
    "contentHash": {
      "graph": {
        "hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=",
        "digestAlgorithm": "DIGEST_ALGORITHM_BLAKE2B_256",
        "canonicalizationAlgorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015",
        "markleTree": "GRAPH_MERKLE_TREE_NONE_UNSPECIFIED"
      }
    },
    "iri": "regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf",
    "timestamp": "2022-01-01T00:00:00.000000000Z"
  }
}

# AnchorByHash

The AnchorByHash endpoint allows users to query a data anchor by the ContentHash of the data

regen.data.v1.Query/AnchorByHash

Example:

grpcurl -plaintext \
    -d '{"contentHash": {
        "graph": {
          "hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=",
          "digestAlgorithm": "DIGEST_ALGORITHM_BLAKE2B_256",
          "canonicalizationAlgorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015"
        }
      }
    }' \
    localhost:9090 \
    regen.data.v1.Query/AnchorByHash

Example Output:

{
  "anchor": {
    "iri": "regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf",
    "contentHash": {
      "graph": {
        "hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=",
        "digestAlgorithm": "DIGEST_ALGORITHM_BLAKE2B_256",
        "canonicalizationAlgorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015"
      }
    },
    "timestamp": "2022-07-06T11:54:58.464341467Z"
  }
}

# AttestationsByAttestor

The AttestationsByAttestor endpoint allows users to query data attestations by an attestor.

regen.data.v1.Query/AttestationsByAttestor

Example:

grpcurl -plaintext \
    -d '{"attestor": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5"}' \
    localhost:9090 \
    regen.data.v1.Query/AttestationsByAttestor

Example Output:

{
  "attestations": [
    {
      "iri": "regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf",
      "attestor": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5",
      "timestamp": "2022-07-07T05:44:06.119352311Z"
    }
  ]
}

# AttestationsByIRI

The AttestationsByIRI endpoint allows users to query data attestations by an iri.

regen.data.v1.Query/AttestationsByIRI

Example:

grpcurl -plaintext \ 
    -d '{"iri": "regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf"}' \
    localhost:9090 \
    regen.data.v1.Query/AttestationsByIRI

Example Output:

{
  "attestations": [
    {
      "iri": "regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf",
      "attestor": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5",
      "timestamp": "2022-07-07T05:44:06.119352311Z"
    }
  ]
}

# AttestationsByHash

The AttestationsByHash endpoint allows users to query by the ContentHash of the data.

regen.data.v1.Query/AttestationsByHash

Example:

grpcurl -plaintext \
    -d '{
        "content_hash": {
          "graph": {
            "canonicalization_algorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015",
            "digest_algorithm": "DIGEST_ALGORITHM_BLAKE2B_256",
            "hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY="
          }
        }
    }' \
    localhost:9090 \
    regen.data.v1.Query/AttestationsByHash

Example Output:

{
  "attestations": [
    {
      "iri": "regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf",
      "attestor": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5",
      "timestamp": "2022-07-07T05:44:06.119352311Z"
    }
  ]
}

# Resolver

The Resolver allows users to query resolver by its unique identifier.

regen.data.v1.Query/Resolver

Example:

grpcurl -plaintext \
    -d '{"id":1}' \
    localhost:9090 \
    regen.data.v1.Query/Resolver

Example Output:

{
  "resolver": {
    "id": "1",
    "url": "http://foo.bar",
    "manager": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5"
  }
}

# ResolversByIRI

The ResolversByIRI allows users to query resolvers with registered data by the IRI of the data.

regen.data.v1.Query/ResolversByIRI

Example:

grpcurl -plaintext \
  -d '{"iri":"regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf"}' \
  localhost:9090 \
  regen.data.v1.Query/ResolversByIRI

Example Output:

{
  "resolvers": [
    {
      "id": "1",
      "url": "http://foo.bar",
      "manager": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5"
    }
  ]
}

# ResolversByHash

The ResolversByHash allows users to query resolvers with registered data by the ContentHash of the data.

regen.data.v1.Query/ResolversByHash

Example:

grpcurl -plaintext \
    -d '{
      "content_hash":{
        "graph":{
          "hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=",
          "digest_algorithm": "DIGEST_ALGORITHM_BLAKE2B_256",
          "canonicalization_algorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015"
        }
      }
    }' \
    localhost:9090 \
    regen.data.v1.Query/ResolversByHash

Example Output:

{
  "resolvers": [
    {
      "id": "1",
      "url": "http://foo.bar",
      "manager": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5"
    }
  ]
}

# ResolversByURL

The ResolversByURL allows users to query resolvers by URL.

regen.data.v1.Query/ResolversByURL

Example:

grpcurl -plaintext \
    -d '{"url":"http://foo.bar"}' \
    localhost:9090 \
    regen.data.v1.Query/ResolversByURL

Example Output:

{
  "resolvers": [
    {
      "id": "1",
      "url": "http://foo.bar",
      "manager": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5"
    }
  ]
}

# ConvertIRIToHash

The ConvertIRIToHash allows users to convert IRI to a ContentHash.

regen.data.v1.Query/ConvertIRIToHash

Example:

grpcurl -plaintext \
    -d '{"iri":"regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf"}' \
    localhost:9090 \
    regen.data.v1.Query/ConvertIRIToHash

Example Output:

{
  "contentHash": {
    "graph": {
      "hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=",
      "digestAlgorithm": "DIGEST_ALGORITHM_BLAKE2B_256",
      "canonicalizationAlgorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015"
    }
  }
}

# ConvertHashToIRI

The ConvertHashToIRI endpoint allows users to convert ContentHash to an IRI.

regen.data.v1.ConvertHashToIRI

Example:

grpcurl -plaintext \
    -d '{
      "content_hash": {
        "graph": {
          "hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=",
          "digest_algorithm": "DIGEST_ALGORITHM_BLAKE2B_256",
          "canonicalization_algorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015"
        }
      }
    }' \
    localhost:9090 \
    regen.data.v1.Query/ConvertHashToIRI

Example Output:

{
  "iri": "regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf"
}

# REST

A user can query the data module using REST endpoints.

# anchor-by-iri

The anchor-by-iri endpoint allows users to query a data anchor by the IRI of the data.

/regen/data/v1/anchor-by-iri/{iri}
/regen/data/v1/anchors/iri/{iri}

Example:

curl localhost:1317/regen/data/v1/anchors/iri/regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf

Example Output:

{
  "anchor": {
    "iri": "regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf",
    "content_hash": {
      "raw": null,
      "graph": {
        "hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=",
        "digest_algorithm": "DIGEST_ALGORITHM_BLAKE2B_256",
        "canonicalization_algorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015",
        "merkle_tree": "GRAPH_MERKLE_TREE_NONE_UNSPECIFIED"
      }
    },
    "timestamp": "2022-07-06T11:54:58.464341467Z"
  }
}

# anchor-by-hash

The anchor-by-hash allows users to query a data anchor by the ContentHash of the data.

/regen/data/v1/anchor-by-hash
/regen/data/v1/anchors/hash

Example:

curl \
    -d '{"content_hash": {"graph": {"canonicalization_algorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015","digest_algorithm": "DIGEST_ALGORITHM_BLAKE2B_256","hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY="}}}' \
    -H 'Content-Type: application/json' \
    localhost:1317/regen/data/v1/anchors/hash

Example Output:

{
    "anchor": {
        "iri": "regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf",
        "content_hash": {
            "raw": null,
            "graph": {
                "hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=",
                "digest_algorithm": "DIGEST_ALGORITHM_BLAKE2B_256",
                "canonicalization_algorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015",
                "merkle_tree": "GRAPH_MERKLE_TREE_NONE_UNSPECIFIED"
            }
        },
        "timestamp": "2022-07-06T11:54:58.464341467Z"
    }
}

# attestations-by-attestor

The attestations-by-attestor endpoint allows users to query data attestations by an attestor.

/regen/data/v1/attestations-by-attestor/{attestor}
/regen/data/v1/attestations/attestor/{attestor}

Example:

curl localhost:1317/regen/data/v1/attestations-by-attestor/regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5

Example Output:

{
    "attestations": [
        {
            "iri": "regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf",
            "attestor": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5",
            "timestamp": "2022-07-07T05:44:06.119352311Z"
        }
    ],
    "pagination": null
}

# attestations-by-iri

The attestations-by-iri allows users to query data attestations by IRI.

/regen/data/v1/attestations-by-iri/{iri}
/regen/data/v1/attestations/iri/{iri}

Example:

curl localhost:1317/regen/data/v1/attestations-by-iri/regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf

Example Output:

{
    "attestations": [
        {
            "iri": "regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf",
            "attestor": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5",
            "timestamp": "2022-07-07T05:44:06.119352311Z"
        }
    ],
    "pagination": null
}

# attestations-by-hash

The attestations-by-hash allows users to query data attestations by the ContentHash of the data.

/regen/data/v1/attestations-by-hash
/regen/data/v1/attestations/hash

Example:

curl \
    -d '{"content_hash": {"graph": {"canonicalization_algorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015","digest_algorithm": "DIGEST_ALGORITHM_BLAKE2B_256","hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY="}}}' \
    -H 'Content-Type: application/json' \
    localhost:1317/regen/data/v1/attestations/hash

Example Output:

{
    "attestations": [
        {
            "iri": "regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf",
            "attestor": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5",
            "timestamp": "2022-07-07T05:44:06.119352311Z"
        }
    ],
    "pagination": null
}

# resolver

The resovler endpoint allows users to query a resolver by its unique identifier.

/regen/data/v1/resolver/{id}
/regen/data/v1/resolvers/{id}

Example:

curl localhost:1317/regen/data/v1/resolvers/1

Example Output:

{
  "resolver": {
    "id": "1",
    "url": "http://foo.bar",
    "manager": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5"
  }
}

# resolvers-by-iri

The resolvers-by-iri endpoint allows users to query resolvers with registered data by the IRI of the data.

/regen/data/v1/resolvers-by-iri/{iri}
/regen/data/v1/resolvers/iri/{iri}

Example:

curl locahost:1317/regen/data/v1/resolvers/iri/regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf

Example Output:

{
    "resolvers": [
        {
            "id": "1",
            "url": "http://foo.bar",
            "manager": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5"
        }
    ],
    "pagination": null
}

# resolvers-by-hash

The resolvers-by-hash endpoint allows users to query resolvers with registered data by the ContentHash of the data.

/regen/data/v1/resolvers-by-hash
/regen/data/v1/resolvers/hash

Example:

curl \
    -d '{"content_hash":{"graph":{"hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=","digest_algorithm": "DIGEST_ALGORITHM_BLAKE2B_256","canonicalization_algorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015"}}}' \
    -H 'Content-Type: application/json' \
    localhost:1317/regen/data/v1/resolvers/hash

Example Output:

{
    "resolvers": [
        {
            "id": "1",
            "url": "http://foo.bar",
            "manager": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5"
        }
    ],
    "pagination": null
}

# resolvers-by-url

The resolvers-by-url allows users to query resolvers by URL.

/regen/data/v1/resolvers-by-url
/regen/data/v1/resolvers/url

Example:

curl \
    -d '{"url":"http://foo.bar"}' \
    -H 'Content-Type: application/json' \
    localhost:1317/regen/data/v1/resolvers/url

Example Output:

{
    "resolvers": [
        {
            "id": "1",
            "url": "http://foo.bar",
            "manager": "regen1k82wewrfkhdmegw6uxrgwwzrsd7593t8tej2d5"
        }
    ],
    "pagination": null
}

# convertIRI-to-hash

The convertIRI-to-hash allows users to convert IRI to a ContentHash.

/regen/data/v1/convert-iri-to-hash/{iri}

Example:

curl localhost:1317/regen/data/v1/convert-iri-to-hash/regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf

Example Output:

{
    "content_hash": {
        "raw": null,
        "graph": {
            "hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=",
            "digest_algorithm": "DIGEST_ALGORITHM_BLAKE2B_256",
            "canonicalization_algorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015",
            "merkle_tree": "GRAPH_MERKLE_TREE_NONE_UNSPECIFIED"
        }
    }
}

# convert-hash-to-IRI

The convert-hash-to-IRI endpoint allows users to convert ContentHash to an IRI.

/regen/data/v1/convert-hash-to-iri

Example:

curl \
    -d '{"content_hash": {"raw": null,"graph": {"hash": "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=","digest_algorithm":"DIGEST_ALGORITHM_BLAKE2B_256","canonicalization_algorithm": "GRAPH_CANONICALIZATION_ALGORITHM_URDNA2015"}}}' \
    -H 'Content-Type: application/json' \
    localhost:1317/regen/data/v1/convert-hash-to-iri

Example Output:

{
    "iri": "regen:13toVgf5aZqSVSeJQv562xkkeoe3rr3bJWa29PHVKVf77VAkVMcDvVd.rdf"
}

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