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DocumentReference impl
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‎common/api-review/firestore-lite.api.md‎

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@@ -137,9 +137,11 @@ export function documentId(): FieldPath;
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export class DocumentReference<AppModelType = DocumentData, DbModelType extends DocumentData = DocumentData> {
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readonly converter: FirestoreDataConverter<AppModelType, DbModelType> | null;
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readonly firestore: Firestore;
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static fromJSON<NewAppModelType = DocumentData, NewDbModelType extends DocumentData = DocumentData>(firestore: Firestore, json: object, converter?: FirestoreDataConverter<NewAppModelType, NewDbModelType>): DocumentReference<NewAppModelType, NewDbModelType>;
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get id(): string;
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get parent(): CollectionReference<AppModelType, DbModelType>;
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get path(): string;
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toJSON(): object;
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readonly type = "document";
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withConverter<NewAppModelType, NewDbModelType extends DocumentData = DocumentData>(converter: FirestoreDataConverter<NewAppModelType, NewDbModelType>): DocumentReference<NewAppModelType, NewDbModelType>;
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withConverter(converter: null): DocumentReference<DocumentData, DocumentData>;

‎common/api-review/firestore.api.md‎

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export class DocumentReference<AppModelType = DocumentData, DbModelType extends DocumentData = DocumentData> {
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readonly converter: FirestoreDataConverter<AppModelType, DbModelType> | null;
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readonly firestore: Firestore;
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static fromJSON<NewAppModelType = DocumentData, NewDbModelType extends DocumentData = DocumentData>(firestore: Firestore, json: object, converter?: FirestoreDataConverter<NewAppModelType, NewDbModelType>): DocumentReference<NewAppModelType, NewDbModelType>;
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get id(): string;
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get parent(): CollectionReference<AppModelType, DbModelType>;
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get path(): string;
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toJSON(): object;
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readonly type = "document";
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withConverter<NewAppModelType, NewDbModelType extends DocumentData = DocumentData>(converter: FirestoreDataConverter<NewAppModelType, NewDbModelType>): DocumentReference<NewAppModelType, NewDbModelType>;
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withConverter(converter: null): DocumentReference<DocumentData, DocumentData>;

‎docs-devsite/firestore_.documentreference.md‎

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@@ -33,6 +33,8 @@ export declare class DocumentReference<AppModelType = DocumentData, DbModelType
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| Method | Modifiers | Description |
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| --- | --- | --- |
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| [fromJSON(firestore, json, converter)](./firestore_.documentreference.md#documentreferencefromjson) | <code>static</code> | Builds a <code>DocumentReference</code> instance from a JSON serialized version of <code>DocumentReference</code>. |
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| [toJSON()](./firestore_.documentreference.md#documentreferencetojson) | | Returns a JSON-serializable representation of this DocumentReference. |
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| [withConverter(converter)](./firestore_.documentreference.md#documentreferencewithconverter) | | Applies a custom data converter to this <code>DocumentReference</code>, allowing you to use your own custom model objects with Firestore. When you call [setDoc()](./firestore_lite.md#setdoc_ee215ad)<!-- -->, [getDoc()](./firestore_lite.md#getdoc_4569087)<!-- -->, etc. with the returned <code>DocumentReference</code> instance, the provided converter will convert between Firestore data of type <code>NewDbModelType</code> and your custom type <code>NewAppModelType</code>. |
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| [withConverter(converter)](./firestore_.documentreference.md#documentreferencewithconverter) | | Removes the current converter. |
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@@ -96,6 +98,41 @@ The type of this Firestore reference.
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readonly type = "document";
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```
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## DocumentReference.fromJSON()
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Builds a `DocumentReference` instance from a JSON serialized version of `DocumentReference`<!-- -->.
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<b>Signature:</b>
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```typescript
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static fromJSON<NewAppModelType = DocumentData, NewDbModelType extends DocumentData = DocumentData>(firestore: Firestore, json: object, converter?: FirestoreDataConverter<NewAppModelType, NewDbModelType>): DocumentReference<NewAppModelType, NewDbModelType>;
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```
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#### Parameters
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| Parameter | Type | Description |
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| --- | --- | --- |
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| firestore | [Firestore](./firestore_.firestore.md#firestore_class) | |
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| json | object | |
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| converter | [FirestoreDataConverter](./firestore_.firestoredataconverter.md#firestoredataconverter_interface)<!-- -->&lt;NewAppModelType, NewDbModelType&gt; | |
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<b>Returns:</b>
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[DocumentReference](./firestore_.documentreference.md#documentreference_class)<!-- -->&lt;NewAppModelType, NewDbModelType&gt;
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## DocumentReference.toJSON()
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Returns a JSON-serializable representation of this DocumentReference.
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<b>Signature:</b>
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```typescript
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toJSON(): object;
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```
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<b>Returns:</b>
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object
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## DocumentReference.withConverter()
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Applies a custom data converter to this `DocumentReference`<!-- -->, allowing you to use your own custom model objects with Firestore. When you call [setDoc()](./firestore_lite.md#setdoc_ee215ad)<!-- -->, [getDoc()](./firestore_lite.md#getdoc_4569087)<!-- -->, etc. with the returned `DocumentReference` instance, the provided converter will convert between Firestore data of type `NewDbModelType` and your custom type `NewAppModelType`<!-- -->.

‎docs-devsite/firestore_lite.documentreference.md‎

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@@ -33,6 +33,8 @@ export declare class DocumentReference<AppModelType = DocumentData, DbModelType
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| Method | Modifiers | Description |
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| --- | --- | --- |
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| [fromJSON(firestore, json, converter)](./firestore_lite.documentreference.md#documentreferencefromjson) | <code>static</code> | Builds a <code>DocumentReference</code> instance from a JSON serialized version of <code>DocumentReference</code>. |
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| [toJSON()](./firestore_lite.documentreference.md#documentreferencetojson) | | Returns a JSON-serializable representation of this DocumentReference. |
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| [withConverter(converter)](./firestore_lite.documentreference.md#documentreferencewithconverter) | | Applies a custom data converter to this <code>DocumentReference</code>, allowing you to use your own custom model objects with Firestore. When you call [setDoc()](./firestore_lite.md#setdoc_ee215ad)<!-- -->, [getDoc()](./firestore_lite.md#getdoc_4569087)<!-- -->, etc. with the returned <code>DocumentReference</code> instance, the provided converter will convert between Firestore data of type <code>NewDbModelType</code> and your custom type <code>NewAppModelType</code>. |
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| [withConverter(converter)](./firestore_lite.documentreference.md#documentreferencewithconverter) | | Removes the current converter. |
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readonly type = "document";
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```
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## DocumentReference.fromJSON()
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Builds a `DocumentReference` instance from a JSON serialized version of `DocumentReference`<!-- -->.
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<b>Signature:</b>
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```typescript
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static fromJSON<NewAppModelType = DocumentData, NewDbModelType extends DocumentData = DocumentData>(firestore: Firestore, json: object, converter?: FirestoreDataConverter<NewAppModelType, NewDbModelType>): DocumentReference<NewAppModelType, NewDbModelType>;
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```
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#### Parameters
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| Parameter | Type | Description |
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| --- | --- | --- |
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| firestore | [Firestore](./firestore_lite.firestore.md#firestore_class) | |
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| json | object | |
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| converter | [FirestoreDataConverter](./firestore_lite.firestoredataconverter.md#firestoredataconverter_interface)<!-- -->&lt;NewAppModelType, NewDbModelType&gt; | |
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<b>Returns:</b>
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[DocumentReference](./firestore_lite.documentreference.md#documentreference_class)<!-- -->&lt;NewAppModelType, NewDbModelType&gt;
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## DocumentReference.toJSON()
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Returns a JSON-serializable representation of this DocumentReference.
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<b>Signature:</b>
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```typescript
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toJSON(): object;
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```
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<b>Returns:</b>
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object
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## DocumentReference.withConverter()
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Applies a custom data converter to this `DocumentReference`<!-- -->, allowing you to use your own custom model objects with Firestore. When you call [setDoc()](./firestore_lite.md#setdoc_ee215ad)<!-- -->, [getDoc()](./firestore_lite.md#getdoc_4569087)<!-- -->, etc. with the returned `DocumentReference` instance, the provided converter will convert between Firestore data of type `NewDbModelType` and your custom type `NewAppModelType`<!-- -->.

‎packages/firestore/src/lite-api/reference.ts‎

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this._key
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);
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}
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/** Returns a JSON-serializable representation of this DocumentReference. */
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toJSON(): object {
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return {
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type: 'firestore/documentReference/1.0',
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referencePath: this._key.toString()
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};
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}
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/** Builds a `DocumentReference` instance from a JSON serialized version of `DocumentReference`. */
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static fromJSON<
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NewAppModelType = DocumentData,
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NewDbModelType extends DocumentData = DocumentData
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>(
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firestore: Firestore,
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json: object,
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converter?: FirestoreDataConverter<NewAppModelType, NewDbModelType>
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): DocumentReference<NewAppModelType, NewDbModelType> {
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const requiredFields = ['type', 'referencePath'];
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let error: string | undefined = undefined;
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let path: string = '';
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for (const key of requiredFields) {
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if (!(key in json)) {
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error = `json missing required field: ${key}`;
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}
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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const value = (json as any)[key];
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if (key === 'type') {
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if (typeof value !== 'string') {
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error = `json field 'type' must be a string.`;
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break;
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} else if (value !== 'firestore/documentReference/1.0') {
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error =
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"Expected 'type' field to equal 'firestore/documentReference/1.0'";
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break;
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}
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} else if (key === 'referencePath') {
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if (typeof value !== 'string') {
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error = `json field 'referencePath' must be a string.`;
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break;
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}
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path = value;
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}
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}
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if (error) {
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throw new FirestoreError(Code.INVALID_ARGUMENT, error);
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}
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const resourcePath = ResourcePath.fromString(path);
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const documentKey = new DocumentKey(resourcePath);
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return new DocumentReference<NewAppModelType, NewDbModelType>(
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firestore,
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converter ? converter : null,
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documentKey
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);
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}
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}
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/**

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