Function resolveConnectionValues

packages/core/sdk/src/executor.ts:1672–1705

(
      row: ConnectionRow,
    )

    // two distinct inputs yields one entry per variable. OAuth connections refresh
    // first (always single-input → `{ token: <access> }`).
    const resolveConnectionValues = (
      row: ConnectionRow,
    ): Effect.Effect<Record<string, string | null>, StorageFailure | CredentialResolutionError> =>
      Effect.gen(function* () {
        const provider = credentialProviders.get(row.provider);
        if (!provider) {
          return yield* new CredentialProviderNotRegisteredError({
            provider: ProviderKey.make(row.provider),
          });
        }
        // OAuth connections refresh their access token before resolving when
        // it has expired (or is within the skew window).
        const expiresAt = row.expires_at == null ? null : Number(row.expires_at);
        if (row.oauth_client != null && shouldRefreshToken({ expiresAt })) {
          const access = yield* refreshConnectionToken(row, provider);
          return { [PRIMARY_INPUT_VARIABLE]: access };
        }
        const out: Record<string, string | null> = {};
        for (const [variable, itemId] of Object.entries(connectionItemIds(row))) {
          out[variable] = yield* provider.get(ProviderItemId.make(itemId));
        }
        return out;
      }).pipe(
        // CredentialProviderNotRegisteredError is part of CredentialResolution
        // for ctx.connections.resolveValue's StorageFailure channel — fold it.
        Effect.catchTag("CredentialProviderNotRegisteredError", (err) =>
          Effect.fail(
            new StorageError({
              message: `Credential provider "${err.provider}" is not registered.`,
              cause: err,
            }),
          ),
        ),
      );

    /** The primary (`token`) value — the public seam for OAuth + single-input
     *  callers that only ever need one value. */