@metamask/snaps-sdk
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A library containing the core functionality for building MetaMask Snaps
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{"version":3,"file":"assets-lookup.mjs","sourceRoot":"","sources":["../../../src/types/handlers/assets-lookup.ts"],"names":[],"mappings":"AACA,OAAO,EACL,KAAK,EACL,IAAI,EACJ,OAAO,EACP,MAAM,EACN,MAAM,EACN,MAAM,EACN,MAAM,EACN,MAAM,EACN,QAAQ,EACR,QAAQ,EACT,8BAA8B;AAC/B,OAAO,EACL,MAAM,EACN,mBAAmB,EAEpB,wBAAwB;AAEzB,MAAM,CAAC,MAAM,uBAAuB,GAAG,MAAM,CAAC;IAC5C,IAAI,EAAE,QAAQ,CAAC,MAAM,EAAE,CAAC;IACxB,MAAM,EAAE,QAAQ,CAAC,MAAM,EAAE,CAAC;IAC1B,QAAQ,EAAE,MAAM,EAAE;CACnB,CAAC,CAAC;AAIH,MAAM,CAAC,MAAM,kBAAkB,GAAG,MAAM,CAAC,MAAM,EAAE,EAAE,WAAW,EAAE,CAAC,KAAK,EAAE,EAAE;IACxE,IAAI,CAAC;QACH,MAAM,GAAG,GAAG,IAAI,GAAG,CAAC,KAAK,CAAC,CAAC;QAC3B,+EAA+E;QAC/E,MAAM,CACJ,GAAG,CAAC,QAAQ,KAAK,QAAQ;YACvB,KAAK,CAAC,UAAU,CAAC,4BAA4B,CAAC,CACjD,CAAC;QACF,OAAO,IAAI,CAAC;IACd,CAAC;IAAC,MAAM,CAAC;QACP,OAAO,aAAa,CAAC;IACvB,CAAC;AACH,CAAC,CAAC,CAAC;AAEH,MAAM,CAAC,MAAM,2BAA2B,GAAG,MAAM,CAAC;IAChD,IAAI,EAAE,QAAQ,CAAC,MAAM,EAAE,CAAC;IACxB,MAAM,EAAE,QAAQ,CAAC,MAAM,EAAE,CAAC;IAC1B,QAAQ,EAAE,OAAO,CAAC,IAAI,CAAC;IACvB,OAAO,EAAE,kBAAkB;IAC3B,KAAK,EAAE,IAAI,CAAC,KAAK,CAAC,uBAAuB,CAAC,EAAE,CAAC,EAAE,QAAQ,CAAC;CACzD,CAAC,CAAC;AAEH,MAAM,CAAC,MAAM,4BAA4B,GAAG,MAAM,CAAC;IACjD,MAAM,EAAE,MAAM,CAAC,mBAAmB,EAAE,QAAQ,CAAC,2BAA2B,CAAC,CAAC;CAC3E,CAAC,CAAC","sourcesContent":["import type { Infer } from '@metamask/superstruct';\nimport {\n array,\n size,\n literal,\n number,\n object,\n refine,\n string,\n record,\n nullable,\n optional,\n} from '@metamask/superstruct';\nimport {\n assert,\n CaipAssetTypeStruct,\n type CaipAssetType,\n} from '@metamask/utils';\n\nexport const FungibleAssetUnitStruct = object({\n name: optional(string()),\n symbol: optional(string()),\n decimals: number(),\n});\n\nexport type FungibleAssetUnit = Infer<typeof FungibleAssetUnitStruct>;\n\nexport const AssetIconUrlStruct = refine(string(), 'Asset URL', (value) => {\n try {\n const url = new URL(value);\n // For now, we require asset URLs to either be base64 SVGs or remote HTTPS URLs\n assert(\n url.protocol === 'https:' ||\n value.startsWith('data:image/svg+xml;base64,'),\n );\n return true;\n } catch {\n return 'Invalid URL';\n }\n});\n\nexport const FungibleAssetMetadataStruct = object({\n name: optional(string()),\n symbol: optional(string()),\n fungible: literal(true),\n iconUrl: AssetIconUrlStruct,\n units: size(array(FungibleAssetUnitStruct), 1, Infinity),\n});\n\nexport const OnAssetsLookupResponseStruct = object({\n assets: record(CaipAssetTypeStruct, nullable(FungibleAssetMetadataStruct)),\n});\n\nexport type FungibleAssetMetadata = Infer<typeof FungibleAssetMetadataStruct>;\n\nexport type OnAssetsLookupArguments = {\n assets: CaipAssetType[];\n};\n\n/**\n * The `onAssetsLookup` handler. This is called by MetaMask when querying about specific assets on specific chains.\n *\n * @returns The metadata about each asset. See\n * {@link OnAssetsLookupResponse}.\n */\nexport type OnAssetsLookupHandler = (\n args: OnAssetsLookupArguments,\n) => Promise<OnAssetsLookupResponse>;\n\n/**\n * The response from the query, containing metadata about each requested asset.\n *\n * @property assets - An object containing a mapping between the CAIP-19 key and a metadata object or null.\n */\nexport type OnAssetsLookupResponse = {\n assets: Record<CaipAssetType, FungibleAssetMetadata | null>;\n};\n"]}