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A Kotlin coroutines wrapper for IndexedDB.

Home Page: https://juullabs.github.io/indexeddb/

License: Apache License 2.0

Kotlin 100.00%

indexeddb indexeddb-wrapper

indexeddb's People

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cybernetics santoszv shaggydemiurge irgaly shibasis0801 caelumf janne-koschinski hansvd

indexeddb's Issues

Expose durability for transactions

Indexeddb provides the option to set the durability of transactions.

Setting the durability to "relaxed" seems to increase write performance on chrome.

Could this option be exposed on writeTransactions? :)

docs: https://developer.mozilla.org/en-US/docs/Web/API/IDBTransaction/durability

Allow boolean in Key

Currently something like this is not possible:

store.index("hasBeenBackedUp").getAll(Key(false))

because boolean is prevented as type in validateKeyTypes.

Allow renaming object stores

Every major browser supports this, so we should support it too.

See: https://developer.mozilla.org/en-US/docs/Web/API/IDBObjectStore/name

Provide Kotlin/Wasm support

A user on Kotlinlang Slack reported that they attempted to use IndexedDB from Kotlin/Wasm (but it did not work — as IndexedDB does not yet have Kotlin/Wasm as a target).

Can't put a value with a specific key in an ObjectStore.

Hi, I want to put a value at a specific key (because I'm having procedurally generated data with specific keys for saving the data), and I couldn't find any method to handle this behavior.

cursor moves forward in collect block

Thank you for this very cool library. I'm using this library in my Kotlin Multiplatform project (irgaly/kottage#58).

It seems a cursor in collect block moves forward before completing the block.

I make a reproducer on my fork repository: irgaly#1

steps to reproduce:

get a cursor Flow by openCursor()
collect cursor with block:
- call two or more suspend functions in collect block. (that functions are indexeddb's transaction operations.)
- -> now, cursor has moved forward

expected behavior:

cursor stays current position until collect block completes.

Code

https://github.com/irgaly/indexeddb/blob/57f30479f8c8f82577718127f0e9c178135410b8/reproducer/src/jsMain/kotlin/reproducer/Main.kt

fun main() {
    window.onload = {
        MainScope().launch {
            val database = openDatabase("test", 1) { database, old, new ->
                if (old < 1) {
                    database.createObjectStore("store", KeyPath("id"))
                }
            }
            database.writeTransaction("store") {
                val store = objectStore("store")
                store.clear()
                store.add(jso<Data> { id = 0; name = "a" })
                store.add(jso<Data> { id = 1; name = "b" })
                store.add(jso<Data> { id = 2; name = "c" })
                store.add(jso<Data> { id = 3; name = "d" })
                store.add(jso<Data> { id = 4; name = "e" })
                store.add(jso<Data> { id = 5; name = "f" })
                store.add(jso<Data> { id = 6; name = "g" })
                store.add(jso<Data> { id = 7; name = "h" })
                store.add(jso<Data> { id = 8; name = "i" })
                store.add(jso<Data> { id = 9; name = "j" })
            }
            database.writeTransaction("store") {
                val store = objectStore("store")
                store.openCursor()
                    .collect { cursor ->
                        console.log("1: cursor.value = ${JSON.stringify(cursor.value, null, "  ")}")
                        console.log("2: store.get()")
                        store.get(Key("other"))
                        console.log("3: cursor.value = ${JSON.stringify(cursor.value, null, "  ")}")
                        console.log("4: store.get()")
                        store.get(Key("other"))
                        console.log("5: cursor.value = ${JSON.stringify(cursor.value, null, "  ")}")
                        console.log("6: store.get()")
                        store.get(Key("other"))
                        console.log("7: cursor.value = ${JSON.stringify(cursor.value, null, "  ")}")
                        console.log("8: delete()")
                        cursor.delete()
                        console.log("9: cursor.value = ${JSON.stringify(cursor.value, null, "  ")}")
                    }
            }
        }
    }
}

fun <T : Any> jso(): T = js("({})") as T
inline fun <T : Any> jso(block: T.() -> Unit): T = jso<T>().apply(block)

external interface Data {
    var id: Int
    var name: String
}

Output

environment:
M1, macOS 12.6, Chrome 107.0.5304.87

console log:

1: cursor.value = {
  "id": 0,
  "name": "a"
}
2: store.get()
3: cursor.value = {
  "id": 0,
  "name": "a"
}
4: store.get()
5: cursor.value = {
  "id": 1,
  "name": "b"
}
6: store.get()
7: cursor.value = {
  "id": 2,
  "name": "c"
}
8: delete()
DOMException: Failed to execute 'delete' on 'IDBCursor': The cursor is being iterated or has iterated past its end.
    at WriteTransaction.delete_t3salm_k$ (webpack-internal:///./kotlin/indexeddb-core.js:1097:48)
    at main$lambda$slambda$slambda$slambda.doResume_5yljmg_k$ (webpack-internal:///./kotlin/indexeddb-reproducer.js:127:59)
    at CoroutineImpl.resumeWith_7onugl_k$ (webpack-internal:///./kotlin/kotlin-kotlin-stdlib-js-ir.js:16089:33)
    at CoroutineImpl.resumeWith_s3a3yh_k$ (webpack-internal:///./kotlin/kotlin-kotlin-stdlib-js-ir.js:16135:17)
    at resume (webpack-internal:///./kotlin/kotlinx.coroutines-kotlinx-coroutines-core-js-ir.js:9405:50)
    at resumeUnconfined (webpack-internal:///./kotlin/kotlinx.coroutines-kotlinx-coroutines-core-js-ir.js:9362:9)
    at dispatch (webpack-internal:///./kotlin/kotlinx.coroutines-kotlinx-coroutines-core-js-ir.js:9312:9)
    at dispatchResume (webpack-internal:///./kotlin/kotlinx.coroutines-kotlinx-coroutines-core-js-ir.js:955:5)
    at resumeImpl (webpack-internal:///./kotlin/kotlinx.coroutines-kotlinx-coroutines-core-js-ir.js:1011:11)
    at resumeImpl$default (webpack-internal:///./kotlin/kotlinx.coroutines-kotlinx-coroutines-core-js-ir.js:1037:12)

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/cc @twyatt
/cc @perl2ruby @jessecollier @zafarabbas @IamMrCupp @carterandrew

writeTransaction should rollback on exception

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