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{\n ChainId,\n convertHexToDecimal,\n handleFetch,\n timeoutFetch,\n} from '@metamask/controller-utils';\nimport type { CaipAssetType, CaipChainId, Hex } from '@metamask/utils';\n\nimport { isTokenListSupportedForNetwork } from './assetsUtil';\n\nexport const TOKEN_END_POINT_API = 'https://token.api.cx.metamask.io';\nexport const TOKEN_METADATA_NO_SUPPORT_ERROR =\n 'TokenService Error: Network does not support fetchTokenMetadata';\n\n/**\n * Get the tokens URL for a specific network.\n *\n * @param chainId - The chain ID of the network the tokens requested are on.\n * @returns The tokens URL.\n */\nfunction getTokensURL(chainId: Hex): string {\n const occurrenceFloor =\n chainId === ChainId['linea-mainnet'] ||\n chainId === ChainId['megaeth-mainnet'] ||\n chainId === '0x1079' // Tempo Mainnet\n ? 1\n : 3;\n\n return `${TOKEN_END_POINT_API}/tokens/${convertHexToDecimal(\n chainId,\n )}?occurrenceFloor=${occurrenceFloor}&includeNativeAssets=false&includeTokenFees=false&includeAssetType=false&includeERC20Permit=false&includeStorage=false&includeRwaData=true`;\n}\n\n/**\n * Get the token metadata URL for the given network and token.\n *\n * @param chainId - The chain ID of the network the token is on.\n * @param tokenAddress - The token address.\n * @returns The token metadata URL.\n */\nfunction getTokenMetadataURL(chainId: Hex, tokenAddress: string): string {\n return `${TOKEN_END_POINT_API}/token/${convertHexToDecimal(\n chainId,\n )}?address=${tokenAddress}&includeRwaData=true`;\n}\n\n/**\n * The sort by field for trending tokens.\n */\nexport type SortTrendingBy =\n | 'm5_trending'\n | 'h1_trending'\n | 'h6_trending'\n | 'h24_trending';\n\n/**\n * Get the token search URL for the given networks and search query.\n *\n * @param options - Options for getting token search URL.\n * @param options.chainIds - Array of CAIP format chain IDs (e.g., 'eip155:1', 'solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp').\n * @param options.query - The search query (token name, symbol, or address).\n * @param options.limit - Optional limit for the number of results (defaults to 10).\n * @param options.includeMarketData - Optional flag to include market data in the results (defaults to false).\n * @param options.includeRwaData - Optional flag to include RWA data in the results (defaults to false).\n * @param options.includeTokenSecurityData - Optional flag to include token security data in the results (defaults to false).\n * @returns The token search URL.\n */\nfunction getTokenSearchURL(options: {\n chainIds: CaipChainId[];\n query: string;\n limit?: number;\n includeMarketData?: boolean;\n includeRwaData?: boolean;\n includeTokenSecurityData?: boolean;\n}): string {\n const { chainIds, query, limit, ...optionalParams } = options;\n const encodedQuery = encodeURIComponent(query);\n const encodedChainIds = chainIds\n .map((id) => encodeURIComponent(id))\n .join(',');\n const queryParams = new URLSearchParams();\n Object.entries(optionalParams).forEach(([key, value]) => {\n if (value !== undefined) {\n queryParams.append(key, String(value));\n }\n });\n\n let numberOfItems;\n if (limit) {\n if (limit <= 50) {\n numberOfItems = limit;\n } else if (query.includes('Ondo') && limit <= 500) {\n // There is an exception on the API side https://github.com/consensys-vertical-apps/va-mmcx-token-api/pull/287\n numberOfItems = limit;\n } else {\n numberOfItems = 50;\n }\n }\n\n return `${TOKEN_END_POINT_API}/tokens/search?networks=${encodedChainIds}&query=${encodedQuery}${numberOfItems ? `&first=${numberOfItems}` : ''}&${queryParams.toString()}`;\n}\n\n/**\n * Get the token assets URL for the given asset IDs.\n *\n * @param options - Options for getting token assets.\n * @param options.assetIds - Array of CAIP-19 asset IDs (e.g., ['eip155:1/erc20:0x...', 'solana:5eykt.../slip44:501']).\n * @param options.includeAggregators - Optional flag to include aggregator list in the results (defaults to false).\n * @param options.includeCoingeckoId - Optional flag to include CoinGecko ID in the results (defaults to false).\n * @param options.includeLabels - Optional flag to include labels in the results (defaults to false).\n * @param options.includeMarketData - Optional flag to include market data in the results (defaults to false).\n * @param options.includeOccurrences - Optional flag to include occurrence count in the results (defaults to false).\n * @param options.includeTokenSecurityData - Optional flag to include token security data in the results (defaults to false).\n * @param options.includeRwaData - Optional flag to include RWA data in the results (defaults to false).\n * @returns The token assets URL.\n */\nfunction getTokenAssetsURL(options: {\n assetIds: CaipAssetType[];\n includeAggregators?: boolean;\n includeCoingeckoId?: boolean;\n includeLabels?: boolean;\n includeMarketData?: boolean;\n includeOccurrences?: boolean;\n includeTokenSecurityData?: boolean;\n includeRwaData?: boolean;\n}): string {\n const { assetIds, ...queryOptions } = options;\n const encodedAssetIds = assetIds\n .map((id) => encodeURIComponent(id))\n .join(',');\n const queryParams = new URLSearchParams();\n Object.entries(queryOptions).forEach(([key, value]) => {\n if (value !== undefined) {\n queryParams.append(key, String(value));\n }\n });\n return `${TOKEN_END_POINT_API}/assets?assetIds=${encodedAssetIds}${queryParams.toString() ? `&${queryParams.toString()}` : ''}`;\n}\n\n/**\n * Get the trending tokens URL for the given networks and search query.\n *\n * @param options - Options for getting trending tokens.\n * @param options.chainIds - Array of CAIP format chain IDs (e.g., ['eip155:1', 'eip155:137', 'solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp']).\n * @param options.sort - The sort field.\n * @param options.minLiquidity - The minimum liquidity.\n * @param options.minVolume24hUsd - The minimum volume 24h in USD.\n * @param options.maxVolume24hUsd - The maximum volume 24h in USD.\n * @param options.minMarketCap - The minimum market cap.\n * @param options.maxMarketCap - The maximum market cap.\n * @param options.excludeLabels - Array of labels to exclude (e.g., ['stable_coin', 'blue_chip']).\n * @param options.includeRwaData - Optional flag to include RWA data in the results (defaults to false).\n * @param options.usePriceApiData - Optional flag to use price API data in the results (defaults to false).\n * @param options.includeTokenSecurityData - Optional flag to include token security data in the results (defaults to false).\n * @returns The trending tokens URL.\n */\nfunction getTrendingTokensURL(options: {\n chainIds: CaipChainId[];\n sort?: SortTrendingBy;\n minLiquidity?: number;\n minVolume24hUsd?: number;\n maxVolume24hUsd?: number;\n minMarketCap?: number;\n maxMarketCap?: number;\n excludeLabels?: string[];\n includeRwaData?: boolean;\n usePriceApiData?: boolean;\n includeTokenSecurityData?: boolean;\n}): string {\n const encodedChainIds = options.chainIds\n .map((id) => encodeURIComponent(id))\n .join(',');\n // Add the rest of query params if they are defined\n const queryParams = new URLSearchParams();\n const { chainIds, excludeLabels, ...rest } = options;\n Object.entries(rest).forEach(([key, value]) => {\n if (value !== undefined) {\n queryParams.append(key, String(value));\n }\n });\n\n // Handle excludeLabels separately to avoid encoding the commas\n // The API expects: excludeLabels=stable_coin,blue_chip (not %2C)\n const excludeLabelsParam =\n excludeLabels !== undefined && excludeLabels.length > 0\n ? `&excludeLabels=${excludeLabels.join(',')}`\n : '';\n\n return `${TOKEN_END_POINT_API}/v3/tokens/trending?chainIds=${encodedChainIds}${queryParams.toString() ? `&${queryParams.toString()}` : ''}${excludeLabelsParam}`;\n}\n\nconst tenSecondsInMilliseconds = 10_000;\n\n// Token list averages 1.6 MB in size\n// timeoutFetch by default has a 500ms timeout, which will almost always timeout given the response size.\nconst defaultTimeout = tenSecondsInMilliseconds;\n\n/**\n * Fetch the list of token metadata for a given network. This request is cancellable using the\n * abort signal passed in.\n *\n * @param chainId - The chain ID of the network the requested tokens are on.\n * @param abortSignal - The abort signal used to cancel the request if necessary.\n * @param options - Additional fetch options.\n * @param options.timeout - The fetch timeout.\n * @returns The token list, or `undefined` if the request was cancelled.\n */\nexport async function fetchTokenListByChainId(\n chainId: Hex,\n abortSignal: AbortSignal,\n { timeout = defaultTimeout } = {},\n): Promise {\n const tokenURL = getTokensURL(chainId);\n const response = await queryApi(tokenURL, abortSignal, timeout);\n if (response) {\n const result = await parseJsonResponse(response);\n if (Array.isArray(result) && chainId === ChainId['linea-mainnet']) {\n return result.filter(\n (elm) =>\n Boolean(elm.aggregators.includes('lineaTeam')) ||\n elm.aggregators.length >= 3,\n );\n }\n return result;\n }\n return undefined;\n}\n\nexport type TokenRwaData = {\n market?: {\n nextOpen?: string;\n nextClose?: string;\n };\n nextPause?: {\n start?: string;\n end?: string;\n };\n ticker?: string;\n instrumentType?: string;\n};\n\nexport type TokenSecurityFeature = {\n featureId: string;\n type: string;\n description: string;\n};\n\nexport type TokenSecurityHolder = {\n label: string;\n name: string | null;\n address: string;\n holdingPercentage: number;\n};\n\nexport type TokenSecurityMarket = {\n marketType: string;\n marketName: string;\n pairName: string;\n reserveUSD: number;\n};\n\nexport type TokenSecurityFees = {\n transfer: number;\n transferFeeMaxAmount: number | null;\n buy: number;\n sell: number | null;\n};\n\nexport type TokenSecurityFinancialStats = {\n supply: number;\n topHolders: TokenSecurityHolder[];\n holdersCount: number;\n tradeVolume24h: number | null;\n lockedLiquidityPct: number | null;\n markets: TokenSecurityMarket[];\n};\n\nexport type TokenSecurityMetadata = {\n externalLinks: {\n homepage: string | null;\n twitterPage: string | null;\n telegramChannelId: string | null;\n };\n};\n\nexport type TokenSecurityData = {\n resultType: string;\n maliciousScore: string;\n fees: TokenSecurityFees;\n features: TokenSecurityFeature[];\n financialStats: TokenSecurityFinancialStats;\n metadata: TokenSecurityMetadata;\n created: string;\n};\n\nexport type TokenSearchItem = {\n assetId: CaipAssetType;\n name: string;\n symbol: string;\n decimals: number;\n /** Optional RWA data for tokens when includeRwaData is true */\n rwaData?: TokenRwaData;\n /** Optional security data for tokens when includeTokenSecurityData is true */\n securityData?: TokenSecurityData;\n};\n\ntype SearchTokenOptions = {\n limit?: number;\n includeMarketData?: boolean;\n includeRwaData?: boolean;\n includeTokenSecurityData?: boolean;\n};\n\n/**\n * Search for tokens across one or more networks by query string using CAIP format chain IDs.\n *\n * @param chainIds - Array of CAIP format chain IDs (e.g., ['eip155:1', 'eip155:137', 'solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp']).\n * @param query - The search query (token name, symbol, or address).\n * @param options - Additional fetch options.\n * @param options.limit - The maximum number of results to return.\n * @param options.includeMarketData - Optional flag to include market data in the results (defaults to false).\n * @param options.includeRwaData - Optional flag to include RWA data in the results (defaults to false).\n * @param options.includeTokenSecurityData - Optional flag to include token security data in the results (defaults to false).\n * @returns Object containing count, data array, and an optional error message if the request failed.\n */\nexport async function searchTokens(\n chainIds: CaipChainId[],\n query: string,\n {\n limit = 10,\n includeMarketData = false,\n includeRwaData = true,\n includeTokenSecurityData,\n }: SearchTokenOptions = {},\n): Promise<{ count: number; data: TokenSearchItem[]; error?: string }> {\n const tokenSearchURL = getTokenSearchURL({\n chainIds,\n query,\n limit,\n includeMarketData,\n includeRwaData,\n includeTokenSecurityData,\n });\n\n try {\n const result: { count: number; data: TokenSearchItem[] } =\n await handleFetch(tokenSearchURL);\n\n // The API returns an object with structure: { count: number, data: array, pageInfo: object }\n if (result && typeof result === 'object' && Array.isArray(result.data)) {\n return {\n count: result.count ?? result.data.length,\n data: result.data,\n };\n }\n\n // Handle non-expected responses\n return { count: 0, data: [], error: 'Unexpected API response format' };\n } catch (error) {\n const errorMessage = error instanceof Error ? error.message : String(error);\n return { count: 0, data: [], error: errorMessage };\n }\n}\n\n/**\n * The trending asset type.\n */\nexport type TrendingAsset = {\n assetId: string;\n name: string;\n symbol: string;\n decimals: number;\n price: string;\n aggregatedUsdVolume: number;\n marketCap: number;\n priceChangePct?: {\n m5?: string;\n m15?: string;\n m30?: string;\n h1?: string;\n h6?: string;\n h24?: string;\n };\n labels?: string[];\n /** Optional RWA data for tokens when includeRwaData is true */\n rwaData?: TokenRwaData;\n /** Optional security data for tokens when includeTokenSecurityData is true */\n securityData?: TokenSecurityData;\n};\n\n/**\n * Get the trending tokens for the given chains.\n *\n * @param options - Options for getting trending tokens.\n * @param options.chainIds - The chains to get the trending tokens for.\n * @param options.sortBy - The sort by field.\n * @param options.minLiquidity - The minimum liquidity.\n * @param options.minVolume24hUsd - The minimum volume 24h in USD.\n * @param options.maxVolume24hUsd - The maximum volume 24h in USD.\n * @param options.minMarketCap - The minimum market cap.\n * @param options.maxMarketCap - The maximum market cap.\n * @param options.excludeLabels - Array of labels to exclude (e.g., ['stable_coin', 'blue_chip']).\n * @param options.includeRwaData - Optional flag to include RWA data in the results (defaults to true).\n * @param options.usePriceApiData - Optional flag to use price API data in the results (defaults to true).\n * @param options.includeTokenSecurityData - Optional flag to include token security data in the results (defaults to false).\n * @returns The trending tokens.\n * @throws Will throw if the request fails.\n */\nexport async function getTrendingTokens({\n chainIds,\n sortBy,\n minLiquidity,\n minVolume24hUsd,\n maxVolume24hUsd,\n minMarketCap,\n maxMarketCap,\n excludeLabels,\n includeRwaData = true,\n usePriceApiData = true,\n includeTokenSecurityData,\n}: {\n chainIds: CaipChainId[];\n sortBy?: SortTrendingBy;\n minLiquidity?: number;\n minVolume24hUsd?: number;\n maxVolume24hUsd?: number;\n minMarketCap?: number;\n maxMarketCap?: number;\n excludeLabels?: string[];\n includeRwaData?: boolean;\n usePriceApiData?: boolean;\n includeTokenSecurityData?: boolean;\n}): Promise {\n if (chainIds.length === 0) {\n console.error('No chains provided');\n return [];\n }\n\n const trendingTokensURL = getTrendingTokensURL({\n chainIds,\n sort: sortBy,\n minLiquidity,\n minVolume24hUsd,\n maxVolume24hUsd,\n minMarketCap,\n maxMarketCap,\n excludeLabels,\n includeRwaData,\n usePriceApiData,\n includeTokenSecurityData,\n });\n\n try {\n const result = await handleFetch(trendingTokensURL);\n\n // Validate that the API returned an array\n if (Array.isArray(result)) {\n return result;\n }\n\n // Handle non-expected responses\n console.error('Trending tokens API returned non-array response:', result);\n return [];\n } catch (error) {\n console.error('Trending tokens request failed:', error);\n return [];\n }\n}\n\n/**\n * The token asset type returned by the /assets endpoint.\n */\nexport type TokenAsset = {\n assetId: CaipAssetType;\n name: string;\n symbol: string;\n decimals: number;\n /** Aggregator list when includeAggregators is true */\n aggregators?: string[];\n /** CoinGecko ID when includeCoingeckoId is true */\n coingeckoId?: string;\n /** Labels when includeLabels is true */\n labels?: string[];\n /** Occurrence count when includeOccurrences is true */\n occurrences?: number;\n /** RWA data when includeRwaData is true */\n rwaData?: TokenRwaData;\n /** Security data when includeTokenSecurityData is true */\n securityData?: TokenSecurityData;\n};\n\ntype FetchTokenAssetsOptions = {\n includeAggregators?: boolean;\n includeCoingeckoId?: boolean;\n includeLabels?: boolean;\n includeMarketData?: boolean;\n includeOccurrences?: boolean;\n includeTokenSecurityData?: boolean;\n includeRwaData?: boolean;\n};\n\n/**\n * Fetch asset metadata for the given CAIP-19 asset IDs.\n *\n * @param assetIds - Array of CAIP-19 asset IDs (e.g., ['eip155:1/erc20:0x...', 'solana:5eykt.../slip44:501']).\n * @param options - Additional fetch options.\n * @param options.includeAggregators - Optional flag to include aggregator list in the results (defaults to false).\n * @param options.includeCoingeckoId - Optional flag to include CoinGecko ID in the results (defaults to false).\n * @param options.includeLabels - Optional flag to include labels in the results (defaults to false).\n * @param options.includeMarketData - Optional flag to include market data in the results (defaults to false).\n * @param options.includeOccurrences - Optional flag to include occurrence count in the results (defaults to false).\n * @param options.includeTokenSecurityData - Optional flag to include token security data in the results (defaults to false).\n * @param options.includeRwaData - Optional flag to include RWA data in the results (defaults to false).\n * @returns Array of token assets, or empty array if the request failed or no IDs were provided.\n */\nexport async function fetchTokenAssets(\n assetIds: CaipAssetType[],\n {\n includeAggregators,\n includeCoingeckoId,\n includeLabels,\n includeMarketData,\n includeOccurrences,\n includeTokenSecurityData,\n includeRwaData,\n }: FetchTokenAssetsOptions = {},\n): Promise {\n if (assetIds.length === 0) {\n return [];\n }\n\n const tokenAssetsURL = getTokenAssetsURL({\n assetIds,\n includeAggregators,\n includeCoingeckoId,\n includeLabels,\n includeMarketData,\n includeOccurrences,\n includeTokenSecurityData,\n includeRwaData,\n });\n\n try {\n const result = await handleFetch(tokenAssetsURL);\n\n if (Array.isArray(result)) {\n return result;\n }\n\n return [];\n } catch {\n return [];\n }\n}\n\n/**\n * Fetch metadata for the token address provided for a given network. This request is cancellable\n * using the abort signal passed in.\n *\n * @param chainId - The chain ID of the network the token is on.\n * @param tokenAddress - The address of the token to fetch metadata for.\n * @param abortSignal - The abort signal used to cancel the request if necessary.\n * @param options - Additional fetch options.\n * @param options.timeout - The fetch timeout.\n * @returns The token metadata, or `undefined` if the request was either aborted or failed.\n */\nexport async function fetchTokenMetadata(\n chainId: Hex,\n tokenAddress: string,\n abortSignal: AbortSignal,\n { timeout = defaultTimeout } = {},\n): Promise {\n if (!isTokenListSupportedForNetwork(chainId)) {\n throw new Error(TOKEN_METADATA_NO_SUPPORT_ERROR);\n }\n const tokenMetadataURL = getTokenMetadataURL(chainId, tokenAddress);\n const response = await queryApi(tokenMetadataURL, abortSignal, timeout);\n if (response) {\n return parseJsonResponse(response) as Promise;\n }\n return undefined;\n}\n\n/**\n * Perform fetch request against the api.\n *\n * @param apiURL - The URL of the API to fetch.\n * @param abortSignal - The abort signal used to cancel the request if necessary.\n * @param timeout - The fetch timeout.\n * @returns Promise resolving request response.\n */\nasync function queryApi(\n apiURL: string,\n abortSignal: AbortSignal,\n timeout: number,\n): Promise {\n const fetchOptions: RequestInit = {\n referrer: apiURL,\n referrerPolicy: 'no-referrer-when-downgrade',\n method: 'GET',\n mode: 'cors',\n signal: abortSignal,\n cache: 'default',\n headers: {\n 'Content-Type': 'application/json',\n },\n };\n try {\n return await timeoutFetch(apiURL, fetchOptions, timeout);\n } catch (error) {\n if (error instanceof Error && error.name === 'AbortError') {\n console.log('Request is aborted');\n }\n }\n return undefined;\n}\n\n/**\n * Parse an API response and return the response JSON data.\n *\n * @param apiResponse - The API response to parse.\n * @returns The response JSON data.\n * @throws Will throw if the response includes an error.\n */\nasync function parseJsonResponse(apiResponse: Response): Promise {\n const responseObj = await apiResponse.json();\n // api may return errors as json without setting an error http status code\n if (responseObj?.error) {\n throw new Error(`TokenService Error: ${responseObj.error}`);\n }\n return responseObj;\n}\n"]}