Material

Get all the network information needed to construct a transaction offline.

get

Returns the material that is universal to constructing any signed transaction offline. Replaces /tx/artifacts from versions < v1.0.0.

Query parameters

atstring · unsignedInteger or $hexOptional

Block identifier, as the block height or block hash.

noMetabooleanOptional

DEPRECATED! This is no longer supported

Default: false

metadatastringOptional

Specifies the format of the metadata to be returned. Accepted values are 'json', and 'scale'. 'json' being the decoded metadata, and 'scale' being the SCALE encoded metadata. When metadata is not inputted, the metadata field will be absent.

Responses

application/json

objectOptional

Note: chainName, specName, and specVersion are used to define a type registry with a set of signed extensions and types. For Polkadot and Kusama, chainName is not used in defining this registry, but in other Substrate-based chains that re-launch their network without changing the specName, the chainName would be needed to create the correct registry. Substrate Reference: - RuntimeVersion: https://crates.parity.io/sp_version/struct.RuntimeVersion.html - SignedExtension: https://crates.parity.io/sp_runtime/traits/trait.SignedExtension.html - FRAME Support: https://crates.parity.io/frame_support/metadata/index.html

application/json

get

HTTPcURLJavaScriptPython

GET /transaction/material HTTP/1.1
Host: dot-playbook.nownodes.io
Accept: */*

{
  "at": {
    "hash": "text",
    "height": "text"
  },
  "genesisHash": "text",
  "chainName": "text",
  "specName": "text",
  "specVersion": "text",
  "txVersion": "text",
  "metadata": "text"
}

Get all the network information needed to construct a transaction offline and the version of metadata specified in `metadataVersion`.

get

Returns all the materials necessary for constructing any signed transactions offline.

Path parameters

metadataVersionstringRequired

The version of metadata. The input is expected in a vX format, where X represents the version number (e.g. v14, v15). By default, metadata is outputted in 'json' format, unless the metadata query parameter is provided, in which case it can be either in 'json' or 'scale' format.

Query parameters

atstring · unsignedInteger or $hexOptional

Block identifier, as the block height or block hash.

metadatastringOptional

Specifies the format of the metadata to be returned. Accepted values are 'json', and 'scale'. 'json' being the decoded metadata, and 'scale' being the SCALE encoded metadata.

Responses

application/json

objectOptional

Note: chainName, specName, and specVersion are used to define a type registry with a set of signed extensions and types. For Polkadot and Kusama, chainName is not used in defining this registry, but in other Substrate-based chains that re-launch their network without changing the specName, the chainName would be needed to create the correct registry. Substrate Reference: - RuntimeVersion: https://crates.parity.io/sp_version/struct.RuntimeVersion.html - SignedExtension: https://crates.parity.io/sp_runtime/traits/trait.SignedExtension.html - FRAME Support: https://crates.parity.io/frame_support/metadata/index.html

application/json

get

HTTPcURLJavaScriptPython

GET /transaction/material/{metadataVersion} HTTP/1.1
Host: dot-playbook.nownodes.io
Accept: */*

{
  "at": {
    "hash": "text",
    "height": "text"
  },
  "genesisHash": "text",
  "chainName": "text",
  "specName": "text",
  "specVersion": "text",
  "txVersion": "text",
  "metadata": "text"
}