Package
A psibase package is a zip archive that contains the following files:
meta.json
| Field | Type | Description |
|---|---|---|
| name | String | The name of the package |
| version | String | The package version. Must conform to Semantic Versioning 2.0.0. |
| description | String | The package description |
| depends | Array | Other packages that this package depends on |
| depends[n].name | String | The name of the other package |
| depends[n].version | String | An expression that describes the compatible versions of the dependency |
| accounts | Array | Accounts that are created by this package |
Semantic version matching
The version field in the dependency list is a string that holds a comma separated list of patterns: [op] version, [op] version, .... The version can be a be a full semantic version, the major and minor versions, or just the major version. If the components of a prefix match the corresponding components of a non-prerelease version, it is considered an exact match.
^matches any compatible version that is not older than the version given. This is the default.~only allows patch updates.- Comparison operators
=,!=,<,<=,>,<=are evaluated according to semantic version precedence. - Logical operators
&&and||can be used to combine multiple expressions.&&has higher precedence than|| - Expressions can be grouped with
()
Examples:
1: matches1.0.0and1.3.1, but not2.0.0or1.2.0-rc1>=1.1.2, <2.0.0matches1.1.3and2.0.0-beta>1, <3matches all versions with major version 2, including prereleases
service/<service>.wasm
A wasm file that will be deployed to the service account.
service/<service>.json
Properties associated with a service.
| Field | Type | Description |
|---|---|---|
| flags | Array | Can contain the following strings: "allowSudo", "allowWriteNative", "isSubjective", "allowWriteSubjective", "canNotTimeOut", "canSetTimeLimit", "isAuthService" |
| server | String | The account that will handle HTTP requests for the service |
data/<service>/*
Files that will be uploaded using the storeSys action.
script/postinstall.json
Contains an array of actions that will be executed after the service is deployed.