Method getTemplateRichParameters

src/node/services/coderService.ts:746–797

* Fetch template rich parameters from Coder API. * Uses an optional API session to avoid generating multiple tokens.

(
    deploymentUrl: string,
    versionId: string,
    workspaceName: string,
    session?: CoderApiSession,
    signal?: AbortSignal
  )

   * Uses an optional API session to avoid generating multiple tokens.
   */
  private async getTemplateRichParameters(
    deploymentUrl: string,
    versionId: string,
    workspaceName: string,
    session?: CoderApiSession,
    signal?: AbortSignal
  ): Promise<
    Array<{
      name: string;
      defaultValue: string;
      type: string;
      ephemeral: boolean;
      required: boolean;
    }>
  > {
    const run = async (api: CoderApiSession) => {
      const url = new URL(
        `/api/v2/templateversions/${versionId}/rich-parameters`,
        deploymentUrl
      ).toString();

      const controller = new AbortController();
      const timeout = setTimeout(() => controller.abort(), 30_000);
      const onAbort = () => controller.abort();
      signal?.addEventListener("abort", onAbort, { once: true });
      if (signal?.aborted) {
        controller.abort();
      }

      const response = await fetch(url, {
        headers: {
          "Coder-Session-Token": api.token,
        },
        signal: controller.signal,
      }).finally(() => {
        clearTimeout(timeout);
        signal?.removeEventListener("abort", onAbort);
      });

      if (!response.ok) {
        throw new Error(
          `Failed to fetch rich parameters: ${response.status} ${response.statusText}`
        );
      }

      const data: unknown = await response.json();
      return this.parseRichParameters(data);
    };

    const tokenName = `mux-${workspaceName}`;
    return session ? run(session) : this.withApiSession(tokenName, run);
  }

  /**
   * Encode a parameter string for the Coder CLI's --parameter flag.