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Add support for named in-memory databases using the ?mode=memory connection query param #330

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Add support for named in-memory databases using the ?mode=memory connection query param #330

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18 changes: 14 additions & 4 deletions packages/libsql-core/src/config.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,9 @@ const inMemoryMode = ":memory:";
export function isInMemoryConfig(config: ExpandedConfig): boolean {
return (
config.scheme === "file" &&
(config.path === ":memory:" || config.path.startsWith(":memory:?"))
(config.path === ":memory:" ||
config.path.startsWith(":memory:?") ||
config.path.split("?")[1]?.includes("mode=memory"))
);
}

Expand Down Expand Up @@ -66,7 +68,10 @@ export function expandConfig(
const originalUriScheme = uri.scheme.toLowerCase();
const isInMemoryMode =
originalUriScheme === "file" &&
uri.path === inMemoryMode &&
(uri.path === inMemoryMode ||
uri.query?.pairs.find(
({ key, value }) => key === "mode" && value === "memory",
)) &&
uri.authority === undefined;

let queryParamsDef: queryParamsDef;
Expand All @@ -77,6 +82,11 @@ export function expandConfig(
update: (key, value) =>
connectionQueryParams.push(`${key}=${value}`),
},
mode: {
values: ["memory"],
update: (key, value) =>
connectionQueryParams.push(`${key}=${value}`),
},
};
} else {
queryParamsDef = {
Expand Down Expand Up @@ -150,8 +160,8 @@ export function expandConfig(
) {
throw new LibsqlError(
'The client supports only "libsql:", "wss:", "ws:", "https:", "http:" and "file:" URLs, ' +
`got ${JSON.stringify(uri.scheme + ":")}. ` +
`For more information, please read ${supportedUrlLink}`,
`got ${JSON.stringify(uri.scheme + ":")}. ` +
`For more information, please read ${supportedUrlLink}`,
"URL_SCHEME_NOT_SUPPORTED",
);
}
Expand Down