Token Trading Account Emulator

This endpoint emulates a token trading account. You can check balances, send tokens, and receive tokens.

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Checking Balance

To check the balance of an address, use the following curl command:

curl \"${baseUrl}/balance?address=user1\"

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Sending Tokens

To send tokens, use the following curl command:

curl -X POST ${baseUrl}/send \\\\\n     -H \"Content-Type: application/json\" \\\\\n     -d '{\n       \"from\": \"user1\",\n       \"to\": \"user2\",\n       \"amount\": 5\n     }'

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Listing All Accounts

To list all active accounts and their balances, use the following curl command:

curl \"${baseUrl}/accounts\"

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Minting Tokens*

Requires Chairman Authorization

To mint new tokens, use the following curl command:

curl -X POST ${baseUrl}/mint \\\\\n     -H \"Content-Type: application/json\" \\\\\n     -H \"Authorization: Bearer CHAIRMAN_PASSWORD\" \\\\\n     -d '{\n       \"address\": \"user2\",\n       \"amount\": 1000\n     }'

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Notes

New addresses are automatically created with a balance of 100 tokens.
Sending tokens requires sufficient balance in the sender's account.
Addresses are case-insensitive. \"user1\" and \"USER1\" refer to the same account.
Minting new tokens requires the chairman's password.

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View source: Val Town

\n \n \n `;\n}\n\nfunction handleHome(baseUrl: string): ApiResponse {\n return {\n status: 200,\n body: generateInstructions(baseUrl),\n headers: { \"Content-Type\": \"text/html\" },\n };\n}\n\nasync function handleBalance(address: string | null): Promise {\n if (!address) {\n return {\n status: 400,\n body: { error: \"Address is required\" },\n };\n }\n const balance = await getBalance(address);\n return {\n status: 200,\n body: { balance },\n };\n}\n\nasync function handleSend(data: any): Promise {\n const { from, to, amount } = data;\n if (!from || !to || amount === undefined) {\n return {\n status: 400,\n body: { error: \"From, to, and amount are required\" },\n };\n }\n if (typeof amount !== \"number\" || amount <= 0) {\n return {\n status: 400,\n body: { error: \"Amount must be a positive number\" },\n };\n }\n const senderBalance = await getBalance(from);\n if (senderBalance < amount) {\n return {\n status: 400,\n body: { error: \"Insufficient balance\" },\n };\n }\n\n // TODO would be nice to wrap in a txn\n await decrementBalance(from, amount);\n await incrementBalance(to, amount);\n\n const newSenderBalance = await getBalance(from);\n const newRecipientBalance = await getBalance(to);\n\n return {\n status: 200,\n body: {\n message: \"Transaction successful\",\n sender: { address: normalizeAddress(from), balance: newSenderBalance },\n recipient: { address: normalizeAddress(to), balance: newRecipientBalance },\n amount: amount,\n },\n };\n}\n\nasync function handleAccounts(): Promise {\n const accounts = await getAllAccounts();\n return {\n status: 200,\n body: { accounts },\n };\n}\n\nasync function handleMint(data: any, authHeader: string | null): Promise {\n const { address, amount } = data;\n if (!address || amount === undefined) {\n return {\n status: 400,\n body: { error: \"Address and amount are required\" },\n };\n }\n if (typeof amount !== \"number\" || amount <= 0) {\n return {\n status: 400,\n body: { error: \"Amount must be a positive number\" },\n };\n }\n if (!authHeader || authHeader !== `Bearer ${Deno.env.get(\"CHAIRMAN_PASSWORD\")}`) {\n console.warn(\"Invalid chairman authorization:\", authHeader)\n return {\n status: 403,\n body: { error: \"Invalid chairman authorization\" },\n };\n }\n await mint(address, amount);\n const newBalance = await getBalance(address);\n return {\n status: 200,\n body: {\n message: \"Minting successful\",\n address: normalizeAddress(address),\n amountMinted: amount,\n newBalance: newBalance,\n },\n };\n}\n\nfunction handleFavicon(): ApiResponse {\n return {\n status: 204,\n body: null,\n };\n}\n\nfunction handleNotFound(): ApiResponse {\n return {\n status: 404,\n body: { error: \"Not found\" },\n };\n}\n\nfunction logRequestResponse(req: Request, res: ApiResponse) {\n console.log(`Request: ${req.method} ${req.url}`);\n console.log(`Response: Status ${res.status}, Body:`, res.body);\n}\n\nexport default async function(req: Request): Promise {\n await initializeDatabase();\n\n const url = new URL(req.url);\n const path = url.pathname;\n\n let response: ApiResponse;\n\n switch (true) {\n case req.method === \"GET\" && path === \"/\":\n response = handleHome(url.origin);\n break;\n case req.method === \"GET\" && path === \"/balance\":\n response = await handleBalance(url.searchParams.get(\"address\"));\n break;\n case req.method === \"POST\" && path === \"/send\":\n response = await handleSend(await req.json());\n break;\n case req.method === \"GET\" && path === \"/accounts\":\n response = await handleAccounts();\n break;\n case req.method === \"POST\" && path === \"/mint\":\n response = await handleMint(await req.json(), req.headers.get(\"Authorization\"));\n break;\n case req.method === \"GET\" && path === \"/favicon.ico\":\n response = handleFavicon();\n break;\n default:\n response = handleNotFound();\n }\n\n logRequestResponse(req, response);\n\n return new Response(\n response.headers?.[\"Content-Type\"] === \"text/html\"\n ? 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