tigawana•13mo ago

List kv items using a partial key

Hey guys am trying to figure out kv and how to get stuffout of it how do i get iteme that have the key ["repo_pkgjson",reponame] example

 const repos = await kv.get(["repo_pkgjson","tigawanna/all-emps-web"]);

 const repos = await kv.get(["repo_pkgjson","tigawanna/all-emps-web"]);

returns

{
    "key": [
        "repo_pkgjson",
        "tigawanna/all-emps-web"
    ],
        "value": {
        "name": "all-emps-vite",
            "private": true,
                "version": "0.0.0",
                    "type": "module",
                        "scripts": {
            "dev": "vite --port 3000",
                "build": "tsc && vite build ",
                    "preview": "vite preview"
        },
        "dependencies": {
            "@tanstack/react-query": "^4.16.1",
                "@tanstack/react-query-devtools": "^4.16.1",
                    "dayjs": "^1.11.6",
                        "pocketbase": "^0.8.0",
                            "react": "^18.2.0",
                                "react-dom": "^18.2.0",
                                    "react-icons": "^4.6.0",
                                        "react-intersection-observer": "^9.4.1",
                                            "react-router-dom": "^6.4.3",
                                                "tailwind-scrollbar": "^2.0.1"
        },
        "devDependencies": {
          
        },
        "pkg_type": "React+Vite",
            "favdeps": [
                "tailwindcss",
                "typescript",
                "react-router-dom",
                "react-icons",
                "dayjs",
                "pocketbase"
            ]
    },
    "versionstamp": "000000000000046d0000"
}

{
    "key": [
        "repo_pkgjson",
        "tigawanna/all-emps-web"
    ],
        "value": {
        "name": "all-emps-vite",
            "private": true,
                "version": "0.0.0",
                    "type": "module",
                        "scripts": {
            "dev": "vite --port 3000",
                "build": "tsc && vite build ",
                    "preview": "vite preview"
        },
        "dependencies": {
            "@tanstack/react-query": "^4.16.1",
                "@tanstack/react-query-devtools": "^4.16.1",
                    "dayjs": "^1.11.6",
                        "pocketbase": "^0.8.0",
                            "react": "^18.2.0",
                                "react-dom": "^18.2.0",
                                    "react-icons": "^4.6.0",
                                        "react-intersection-observer": "^9.4.1",
                                            "react-router-dom": "^6.4.3",
                                                "tailwind-scrollbar": "^2.0.1"
        },
        "devDependencies": {
          
        },
        "pkg_type": "React+Vite",
            "favdeps": [
                "tailwindcss",
                "typescript",
                "react-router-dom",
                "react-icons",
                "dayjs",
                "pocketbase"
            ]
    },
    "versionstamp": "000000000000046d0000"
}

but this

  const repos = await kv.list({prefix: ["repo_pkgjson"]});

  const repos = await kv.list({prefix: ["repo_pkgjson"]});

returns an empty array , waht am i doing wrong?

5 Replies

cknight•13mo ago

Can you show the full code? kv.list returns an async iterator, not an array of entries. You want to do for await (const repo of repos) { ... } with the result of the list operation.

Fifth-Normal-Form•13mo ago

list returns a KvListIterator. You must await each entry.

  const entries = db.list({ prefix: ["repo_pkgjson"] })
  for await (const entry of entries) {
     console.info('key: ', entry.key)
     console.info('value ', entry.value)
  }

  const entries = db.list({ prefix: ["repo_pkgjson"] })
  for await (const entry of entries) {
     console.info('key: ', entry.key)
     console.info('value ', entry.value)
  }

https://deno.land/api@v1.35.3?unstable=&s=Deno.Kv&p=prototype.list

tigawanaOP•13mo ago

Thanks guys it worked

Kojo.gg•13mo ago

Better yet since Deno 1.38: - in one step

const repos = await Array.fromAsync(kv.list({ prefix: ["repo_pkgjson"] }));

const repos = await Array.fromAsync(kv.list({ prefix: ["repo_pkgjson"] }));

- in two steps

const iter = kv.list({ prefix: ["repo_pkgjson"] });
const repos = await Array.fromAsync(iter);

const iter = kv.list({ prefix: ["repo_pkgjson"] });
const repos = await Array.fromAsync(iter);

And you can still access each of them before storing them. For instance if you just want the Value and not the KV Part Key nor the Versionstamp:

const iter = kv.list({ prefix: ["repo_pkgjson"] });
const repos = await Array.fromAsync(iter, repo => repo.value);

const iter = kv.list({ prefix: ["repo_pkgjson"] });
const repos = await Array.fromAsync(iter, repo => repo.value);

tigawanaOP•13mo ago

Thank you even more