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schema.json
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schema.json
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{
"$schema": "http://json-schema.org/draft-07/schema#",
"title": "Manifest",
"description": "The `Manifest` type is used to configure the runtime and specify how to load modules.",
"type": "object",
"properties": {
"allowed_hosts": {
"description": "Specifies which hosts may be accessed via HTTP, if this is empty then no hosts may be accessed. Wildcards may be used.",
"default": null,
"type": [
"array",
"null"
],
"items": {
"type": "string"
}
},
"allowed_paths": {
"description": "Specifies which paths should be made available on disk when using WASI. This is a mapping from the path on disk to the path it should be available inside the plugin. For example, `\".\": \"/tmp\"` would mount the current directory as `/tmp` inside the module",
"default": null,
"type": [
"object",
"null"
],
"additionalProperties": {
"type": "string"
}
},
"config": {
"description": "Config values are made accessible using the PDK `extism_config_get` function",
"default": {},
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"memory": {
"description": "Memory options",
"default": {
"max_http_response_bytes": null,
"max_pages": null,
"max_var_bytes": null
},
"allOf": [
{
"$ref": "#/definitions/MemoryOptions"
}
]
},
"timeout_ms": {
"description": "The plugin timeout in milliseconds",
"default": null,
"type": [
"integer",
"null"
],
"format": "uint64",
"minimum": 0.0
},
"wasm": {
"description": "WebAssembly modules, the `main` module should be named `main` or listed last",
"default": [],
"type": "array",
"items": {
"$ref": "#/definitions/Wasm"
}
}
},
"additionalProperties": false,
"definitions": {
"MemoryOptions": {
"description": "Configure memory settings",
"type": "object",
"properties": {
"max_http_response_bytes": {
"description": "The maximum number of bytes allowed in an HTTP response",
"default": null,
"type": [
"integer",
"null"
],
"format": "uint64",
"minimum": 0.0
},
"max_pages": {
"description": "The max number of WebAssembly pages that should be allocated",
"type": [
"integer",
"null"
],
"format": "uint32",
"minimum": 0.0
},
"max_var_bytes": {
"description": "The maximum number of bytes allowed to be used by plugin vars. Setting this to 0 will disable Extism vars. The default value is 1mb.",
"default": 1048576,
"type": [
"integer",
"null"
],
"format": "uint64",
"minimum": 0.0
}
},
"additionalProperties": false
},
"Wasm": {
"description": "The `Wasm` type specifies how to access a WebAssembly module",
"anyOf": [
{
"description": "From disk",
"type": "object",
"required": [
"path"
],
"properties": {
"hash": {
"description": "Module hash, if the data loaded from disk or via HTTP doesn't match an error will be raised",
"type": [
"string",
"null"
]
},
"name": {
"description": "Module name, this is used by Extism to determine which is the `main` module",
"type": [
"string",
"null"
]
},
"path": {
"type": "string"
}
},
"additionalProperties": false
},
{
"description": "From memory",
"type": "object",
"required": [
"data"
],
"properties": {
"data": {
"type": [
"string",
"object"
],
"required": [
"len",
"ptr"
],
"properties": {
"len": {
"type": "integer",
"format": "uint64",
"minimum": 0.0
},
"ptr": {
"type": "integer",
"format": "uint64",
"minimum": 0.0
}
},
"additionalProperties": false
},
"hash": {
"description": "Module hash, if the data loaded from disk or via HTTP doesn't match an error will be raised",
"type": [
"string",
"null"
]
},
"name": {
"description": "Module name, this is used by Extism to determine which is the `main` module",
"type": [
"string",
"null"
]
}
},
"additionalProperties": false
},
{
"description": "Via HTTP",
"type": "object",
"required": [
"url"
],
"properties": {
"hash": {
"description": "Module hash, if the data loaded from disk or via HTTP doesn't match an error will be raised",
"type": [
"string",
"null"
]
},
"headers": {
"description": "Request headers",
"default": {},
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"method": {
"description": "Request method",
"type": [
"string",
"null"
]
},
"name": {
"description": "Module name, this is used by Extism to determine which is the `main` module",
"type": [
"string",
"null"
]
},
"url": {
"description": "The request URL",
"type": "string"
}
},
"additionalProperties": false
}
]
}
}
}