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# functions
  • r
    Good
  • r
    One more thing , how can we handle file download request in functions, is there a demo ?
  • s
    Hey there I am using Pages functions for my api need along with Next.Js for the frontend. I have added couple of environment variables on the pages dashboard and i want to use that in my localhost/dev machine. i use this command to run the project in local
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    npx wrangler pages dev -- npx next dev
    sample function code here 
    TEXTLOCAL_API_KEY
    is the environment variable being added on the pages dashboard
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    export const onRequestPost = async ({ request }) => {
    const { phone } = await request.json();
    return new Response(
        JSON.stringify({ phone, TEXTLOCAL_API_KEY }),
        {
            headers: {
                "content-type": "application/json;charset=UTF-8",
            },
        }
    );
};
    This is the error message i got when i try to execute the code
  • s
  • g
    Copy code
    ts
export const onRequestPost = async ({ request, env }) => {
    const { phone } = await request.json();
    return new Response(
        JSON.stringify({ phone, env.TEXTLOCAL_API_KEY }),
        {
            headers: {
                "content-type": "application/json;charset=UTF-8",
            },
        }
    );
};
  • g
    Try that instead.
  • g
    Oh, and you'll need to run 
    npx wrangler pages dev --binding TEXTLOCAL_API_KEY=somevalue -- npx next dev
  • g
  • s
    Thanks Greg. works perfectly 👍
  • w
    Has anyone tried to see if toucan-js works on functions? (either right away or with just a little hacking around)
  • g
    It does
  • w
    Ah awesome, ty
  • g
  • j
    👀
  • g
    I might be working on something...
  • w
    Oh yeah? 👀
  • w
    ty for the gist
  • c
    Is there any way currently to develop on Pages Functions + Durable Objects in a single project? Such that: - When you push a commit, changes in both Functions and Durable Objetcs are deployed - Local development is supported with Wrangler to see changes from both Functions and Durable Objects locally
  • s
    So I have two functions/apis 
    /api/send-otp
    to generate and send a otp on phone number through sms/whatsapp and another 
    /api/verify-otp
    which will verify it and return a jwt token to be used in further requests. right now i am storing the otp along with the 
    expirationTime
    inside fauna database so that i can verify the user input otp against db otp.
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    await dbClient.query(
  q.Update(q.Ref(q.Collection("Users"), user.ref.id), {
    data: {
      otp,
      otpExpiry,
    },
  })
);
    Is there a better way to achieve this using KV store or 
    Durable Objects
    ?
  • e
    You should be able to just throw that in KV? Use key something like ‘otp::${username}::${otp}’. You can even set the expiration time as a TTL in KV, so that if you try to read it later than that it will fail automatically.
  • g
    Note that KV’s minimum TTL is 60s though. I’d suggest Durable Objects for anything short-lived.
  • s
    That should be fine. I want the minimum expiration time to be 60s it worked out pretty well for me 😃
  • m
    how to debug functions on cloudflare pages? I tried to use wrangler tail (npm install @cloudflare/wrangler), but I get: Error: Failed to create tail: ⚠️ Code 10007: workers.api.error.script_not_found
  • g
    You can use the wrangler2 beta 
    npm install wrangler@beta
    and 
    wrangler pages dev --help
  • g
    We don't yet support tailing from production
  • m
    thanks. is it possible to mimic that by sending logs from function somewhere else (3th party) where they can be examined?
  • s
    This is working great for env variables but how can i set and use KV bindings in localhost ? In documentation it says this namespace will be available globally like 
    OTP.get("some_key")
    or 
    OTP.set("some_key", some_value)
    its not clear how can i set this in localhost using 
    wrangler@beta
    like 
    npx wrangler pages dev --binding OTP={} -- npx next dev
    ?
  • g
    You could use 
    waitUntil
    to send logs of requests anywhere you like, yes 🙂
  • g
    wrangler pages dev ./my-static-assets-folder --kv OTP
    And then you access it with: 
    env.OTP.get("some_key")
  • s
    Unable to sign/generate JWT token using 
    jose
    library
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    import * as jose from "jose";
token = await new jose.SignJWT({ phone: "123456987" })
            .setProtectedHeader({ alg: "RS256" })
            .setIssuedAt()
            .setIssuer(JWT_ISSUER)
            .setAudience(JWT_AUDIENCE)
            .setExpirationTime(JWT_EXPIRATION_TIME)
            .sign(env.JWT_PRIVATE_KEY);
    and as a binding i have set 
    JWT_PRIVATE_KEY=thisisverysecureprivatekey
    but getting this error
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